Aquatic Sciences and Fisheries Thesaurus

ASFIS Reference Series, No. 6, Revision 1, 1986

Compiled by: E. Fagetti, D.W. Privett, & J.R.L. Sears

    The following list of terms are used by ASFA indexers to describe the contents of publications in a consistent, comprehensive and concise manner. Each term may be followed by:
  • Notes: These comments provide additional information about the term (e.g. definitions and usage history).
  • BT and NT: These labels indicate broader and narrower terms, respectively. They reflect the hierarchical nature of the descriptors (e.g. DISEASES is a broad term relative to FISH DISEASES).
  • RT: Related terms are non-hierarchical relations which direct the users to alternative descriptors in the event that the initial term is conceptually inappropriate. Please note that a maximum of three related terms are provided in this temporary edition.
  •     The ASFA thesaurus is split into several html files to facilitate loading. Use the following alphabet to maneuver, or use your browser's FIND button to search for specific words within a page. Please note: This online thesaurus is a rudimentary version of a fully interactive thesaurus that will be completed in the near future. The present version does not reproduce the printed thesaurus in its entirety. Specifically, a maximum of three related terms are provided, and invalid terms (and corresponding translation) are not included.
     

    ABCDEFGHIJKLMNOPQRSTUVWXYZ


    CABBELING
        Notes: Mixing of two water masses with identical insitu densities but different insitu temperatures and salinities, so that the resulting mixture is denser than its components. Before 1984 search also CABELLING
        BT: VERTICAL WATER MOVEMENT
        RT: MIXING PROCESSES
        RT: SALINITY
        RT: WATER DENSITY
     

    CABLE DEPRESSORS
        BT: DEPRESSORS
        RT: OCEANOGRAPHIC EQUIPMENT
        RT: TOWED SENSORS
        RT: TOWING LINES

    CABLE DYNAMICS
        BT: DYNAMICS
        RT: BUOY MOTION
        RT: CABLES
        RT: CATENARY

    CABLE LAYING
        RT: CABLE SHIPS
        RT: SUBMARINE CABLES

    CABLE SHIPS
        BT: SHIPS
        RT: CABLE LAYING
        RT: SUBMARINE CABLES
        RT: WORK PLATFORMS

    CABLES
        NT: ELECTRIC CABLES
        NT: GUIDE LINES
        NT: MOORING LINES
        NT: RISER CABLES
        NT: STREAMERS
        NT: TOWING LINES
        NT: UMBILICALS
        RT: CABLE DYNAMICS
        RT: CATENARY
        RT: CHAIN

    CADMIUM
        BT: CHEMICAL ELEMENTS
        RT: CADMIUM COMPOUNDS
        RT: CADMIUM ISOTOPES
        RT: HEAVY METALS

    CADMIUM COMPOUNDS
        RT: ALKALI METAL COMPOUNDS
        RT: CADMIUM
        RT: CHEMICAL COMPOUNDS

    CADMIUM ISOTOPES
        BT: ISOTOPES
        RT: CADMIUM

    CAESIUM
        BT: CHEMICAL ELEMENTS
        RT: ALKALI METALS
        RT: CAESIUM COMPOUNDS
        RT: CAESIUM ISOTOPES

    CAESIUM COMPOUNDS
        RT: ALKALI METAL COMPOUNDS
        RT: CAESIUM
        RT: CHEMICAL COMPOUNDS

    CAESIUM ISOTOPES
        BT: ISOTOPES
        NT: CAESIUM 137
        RT: CAESIUM

    CAESIUM 137
        BT: CAESIUM ISOTOPES

    CAGE CULTURE Notes: Culture of shellfish species and fish in fixed or floating cages
        BT: AQUACULTURE TECHNIQUES
        RT: BRACKISHWATER AQUACULTURE
        RT: CAGES
        RT: CRUSTACEAN CULTURE

    CAGES
        Notes: Added in 1980
        BT: AQUACULTURE EQUIPMENT
        NT: FLOATING CAGES
        NT: SUBMERGED CAGES
        RT: CAGE CULTURE
        RT: DESIGN
        RT: GEAR MATERIALS

    CAISSONS
        BT: OFFSHORE STRUCTURES
        RT: SUBMERSIBLE PLATFORMS
        RT: UNDERWATER HABITATS
        RT: WORKING UNDERWATER

    CALCARENITE
        BT: CARBONATE ROCKS
        RT: BIOCALCARENITE
        RT: LIMESTONE
        RT: SEDIMENTARY ROCKS

    CALCAREOUS OOZE
        BT: OOZES
        NT: FORAMINIFERAL OOZE
        NT: PTEROPOD OOZE
        RT: CALCIUM CARBONATES
        RT: CARBONATE SEDIMENTS
        RT: COCCOLITHS

    CALCIFICATION
        Notes: The formation of calcium salt deposits in a tissue. Added in 1980
        BT: BIOCHEMICAL PHENOMENA
        RT: BONES
        RT: DECALCIFICATION
        RT: DIAGENESIS

    CALCITE
        BT: CARBONATE MINERALS
        RT: CALCITE DISSOLUTION
        RT: CALCITIZATION
        RT: CALCIUM CARBONATES

    CALCITE DISSOLUTION
        BT: DISSOLUTION
        RT: CALCITE
        RT: CARBONATE COMPENSATION DEPTH

    CALCITIZATION
        BT: DIAGENESIS
        RT: CALCITE
        RT: DOLOMITIZATION

    CALCIUM
        BT: CHEMICAL ELEMENTS
        RT: ALKALINE EARTH METALS
        RT: CALCIUM COMPOUNDS
        RT: CALCIUM ISOTOPES

    CALCIUM CARBONATES
        BT: CALCIUM COMPOUNDS
        RT: ARAGONITE
        RT: CALCAREOUS OOZE
        RT: CALCITE

    CALCIUM COMPOUNDS
        Notes: Use of a specific compound is recommended
        BT: ALKALINE EARTH METAL COMPOUNDS
        NT: CALCIUM CARBONATES
        NT: CALCIUM PHOSPHATES
        NT: CALCIUM SULPHATES
        RT: CALCIUM
        RT: CHEMICAL COMPOUNDS
        RT: CORAL

    CALCIUM ISOTOPES
        BT: ISOTOPES
        RT: CALCIUM

    CALCIUM PHOSPHATES
        BT: CALCIUM COMPOUNDS
        RT: PHOSPHATES

    CALCIUM SULPHATES
        BT: CALCIUM COMPOUNDS
        RT: SULPHATES

    CALCRETE
        BT: CARBONATE ROCKS
        RT: CONGLOMERATES

    CALCULATORS
        BT: ELECTRONIC EQUIPMENT

    CALIBRATION
        Notes: Methods for calibrating accuracy or reliability of equipment
        BT: STANDARDIZATION
        NT: INTERCALIBRATION
        RT: ACCURACY
        RT: EFFICIENCY
        RT: EQUIPMENT

    CALIFORNIUM
        BT: CHEMICAL ELEMENTS
        RT: ACTINIDES
        RT: CALIFORNIUM COMPOUNDS
        RT: CALIFORNIUM ISOTOPES

    CALIFORNIUM COMPOUNDS
        BT: ACTINIDE COMPOUNDS
        RT: CALIFORNIUM
        RT: CHEMICAL COMPOUNDS

    CALIFORNIUM ISOTOPES
        BT: ISOTOPES
        RT: CALIFORNIUM

    CALORIES
        Notes: Before 1982 search NUTRITIVE VALUE
        RT: CALORIMETRY
        RT: FOOD CONSUMPTION
        RT: NUTRITIVE VALUE

    CALORIMETRY
        Notes: Added in 1980
        RT: CALORIES
        RT: ENERGY BUDGET
        RT: NUTRITIVE VALUE

    CALVING
        Notes: Formation of icebergs
        RT: ABLATION
        RT: ICE SHELVES
        RT: ICEBERGS

    CAMBRIAN
        Notes: Before 1982 search also CAMBRIAN PERIOD
        BT: PALAEOZOIC

    CAMERAS
        BT: PHOTOGRAPHIC EQUIPMENT
        NT: UNDERWATER CAMERAS
        RT: OPTICAL FILTERS
        RT: PHOTOGRAPHY
        RT: REMOTE SENSING EQUIPMENT

    CAMOUFLAGE
        Notes: Added in 1980
        BT: ADAPTATIONS
        RT: DEFENCE MECHANISMS
        RT: MIMICRY
        RT: PREDATION

    CANALS
        Notes: Restricted to artificial water courses through a land area used for navigation, irrigation, etc.
        BT: INLAND WATERS
        NT: INTEROCEAN CANALS
        NT: SHIP CANALS
        RT: CHANNELS
        RT: DREDGING
        RT: HYDRAULIC MODELS

    CANNED PRODUCTS
        Notes: Fishery products preserved in cans by sterilization process
        BT: PROCESSED FISHERY PRODUCTS
        RT: CANNING

    CANNIBALISM
        BT: FEEDING BEHAVIOUR
        RT: CARNIVORES
        RT: CRUSTACEAN CULTURE
        RT: PREDATORS

    CANNING
        Notes: Preservation of fishery products in cans by sterilization process
        BT: PROCESSING FISHERY PRODUCTS
        RT: CANNED PRODUCTS

    CANOE FISHERIES
        BT: FISHERIES
        RT: ARTISANAL FISHING
        RT: CANOES

    CANOES
        BT: SURFACE CRAFT
        RT: ARTISANAL FISHING
        RT: BOATS
        RT: CANOE FISHERIES

    CAP ROCKS
        RT: DIAPIRS
        RT: OIL RESERVOIRS
        RT: SALT DOMES

    CAPACITANCE
        BT: ELECTRICAL PROPERTIES
        RT: DIELECTRIC CONSTANT
        RT: ELECTRIC CHARGE
        RT: ELECTRIC IMPEDANCE

    CAPACITY
        Notes: Used only as a qualifier
        BT: DIMENSIONS

    CAPILLARITY
        Notes: Physical capillary action associated with surface tension
        RT: AIR BUBBLES
        RT: CAPILLARY WAVES
        RT: DROPLETS

    CAPILLARY WAVES
        BT: SURFACE WATER WAVES
        NT: WATER RIPPLES
        RT: CAPILLARITY
        RT: GRAVITY WAVES
        RT: NONLINEAR WAVES

    CAPSIZING
        BT: SHIP MOTION
        RT: ACCIDENTS
        RT: EMERGENCIES
        RT: FLOATING

    CAPTIVITY
        RT: ACCLIMATION
        RT: ACCLIMATIZATION
        RT: AQUARIA

    CAPTURE FISHERY ECONOMICS
        Notes: Economics of exploiting wild stocks. Before 1982 search FISHERY ECONOMICS
        BT: FISHERY ECONOMICS
        RT: COOPERATIVES
        RT: COST ANALYSIS
        RT: ECONOMIC FEASIBILITY

    CARANGID FISHERIES
        Notes: Added in 1982
        BT: FISHERIES
        RT: MARINE FISHERIES
        RT: PELAGIC FISHERIES
        RT: PERCOID FISHERIES

    CARAPACE
        Notes: An exoskeletal shield covering part or all of the dorsal surface of an animal. Added in 1980
        BT: EXOSKELETON
        RT: CEPHALOTHORAX
        RT: CHITIN

    CARBOHYDRATES
        BT: ORGANIC COMPOUNDS
        NT: GLYCOGEN
        NT: GLYCOSIDES
        NT: SACCHARIDES
        RT: AGAR
        RT: ALCOHOLS
        RT: BIOCHEMISTRY

    CARBON
        BT: CHEMICAL ELEMENTS
        NT: ORGANIC CARBON
        RT: CARBON COMPOUNDS
        RT: CARBON CYCLE
        RT: CARBON DIOXIDE

    CARBON COMPOUNDS
        NT: BICARBONATES
        NT: CARBON DIOXIDE
        NT: CARBON MONOXIDE
        NT: CARBON SULPHIDES
        NT: CARBONATES
        RT: CARBON
        RT: CHEMICAL COMPOUNDS
        RT: HYDROCARBONS

    CARBON CYCLE
        BT: NUTRIENT CYCLES
        RT: BIOCHEMISTRY
        RT: CARBON
        RT: CARBON DIOXIDE

    CARBON DIOXIDE
        BT: CARBON COMPOUNDS
        RT: ATMOSPHERIC CHEMISTRY
        RT: CARBON
        RT: CARBON CYCLE

    CARBON FIXATION
        Notes: Before 1982 search PHOTOSYNTHESIS
        BT: PHOTOSYNTHESIS
        RT: CARBOHYDRATES
        RT: CARBON DIOXIDE

    CARBON ISOTOPE RATIO
        RT: CARBON ISOTOPES
        RT: GEOCHRONOMETRY

    CARBON ISOTOPES
        BT: ISOTOPES
        NT: CARBON 13
        NT: CARBON 14
        RT: CARBON
        RT: CARBON ISOTOPE RATIO

    CARBON MONOXIDE
        BT: CARBON COMPOUNDS
        RT: DIVING HAZARDS

    CARBON/NITROGEN RATIO
        RT: DISSOLVED ORGANIC CARBON
        RT: DISSOLVED ORGANIC NITROGEN
        RT: RATIOS

    CARBON/PHOSPHORUS RATIO
        RT: DISSOLVED ORGANIC CARBON
        RT: DISSOLVED ORGANIC PHOSPHORUS
        RT: RATIOS

    CARBON SULPHIDES
        BT: CARBON COMPOUNDS

    CARBON 13
        BT: CARBON ISOTOPES
        RT: ABSOLUTE AGE
        RT: CARBON
        RT: RADIOACTIVE TRACERS

    CARBON 14
        BT: CARBON ISOTOPES
        RT: ABSOLUTE AGE
        RT: CARBON
        RT: PRIMARY PRODUCTION

    CARBONATE COMPENSATION DEPTH
        BT: COMPENSATION DEPTH
        RT: AEROBIC RESPIRATION
        RT: CALCITE DISSOLUTION
        RT: DISCONTINUITY LAYERS

    CARBONATE MINERALS
        BT: MINERALS
        NT: ARAGONITE
        NT: CALCITE
        NT: DOLOMITE
        NT: HYDROMAGNESITE
        NT: MAGNESITE
        NT: SIDERITE

    CARBONATE ROCKS
        NT: BEACHROCK
        NT: BIOCALCARENITE
        NT: CALCARENITE
        NT: CALCRETE
        NT: CHALK
        NT: DOLOSTONE
        NT: LIMESTONE
        RT: CARBONATE SEDIMENTS
        RT: CORAL REEFS
        RT: SEDIMENTARY ROCKS

    CARBONATE SEDIMENTS
        RT: CALCAREOUS OOZE
        RT: CARBONATE ROCKS
        RT: CHEMICAL SEDIMENTS

    CARBONATES
        BT: CARBON COMPOUNDS
        RT: CALCIUM CARBONATES
        RT: CARBONIC ACID
        RT: CHEMICAL COMPOUNDS

    CARBONIC ACID
        RT: CARBONATES

    ABCDEFGHIJKLMNOPQRSTUVWXYZ


    CARBONIC ANHYDRASE
        BT: ENZYMES

    CARBONIFEROUS
        Notes: Before 1982 search CARBONIFEROUS PERIOD
        BT: PALAEOZOIC

    CARBOXYLATION
        BT: CHEMICAL REACTIONS
        RT: DECARBOXYLATION

    CARBOXYLIC ACID SALTS
        NT: ACETATE
        NT: CITRATES

    CARCASSES
        Notes: Added in 1982
        RT: AQUATIC MAMMALS
        RT: STRANDING

    CARCINOGENESIS
        Notes: The production and development of cancer. Added in 1980
        RT: CARCINOGENS
        RT: CHEMICAL POLLUTANTS
        RT: CHEMICAL POLLUTION

    CARCINOGENS
        RT: CARCINOGENESIS
        RT: CHEMICAL POLLUTANTS
        RT: CHEMICAL POLLUTION

    CARCINOLOGISTS
        Notes: Added in 1980
        BT: ZOOLOGISTS
        RT: CARCINOLOGY
        RT: DIRECTORIES
        RT: FISHERY BIOLOGISTS

    CARCINOLOGY
        BT: INVERTEBRATE ZOOLOGY
        RT: CARCINOLOGISTS
        RT: FRESHWATER CRUSTACEANS
        RT: HYDROBIOLOGY

    CAREERS
        RT: EDUCATION
        RT: PERSONNEL

    CARGOES
        RT: AIR TEMPERATURE
        RT: HAZARDOUS MATERIALS
        RT: HUMIDITY

    CARNALLITE
        BT: HALIDE MINERALS

    CARNIVORES
        BT: HETEROTROPHIC ORGANISMS
        RT: CANNIBALISM
        RT: FEEDING BEHAVIOUR
        RT: FORAGE FISH

    CAROTENOIDS
        BT: CHROMATIC PIGMENTS
        RT: DERIVED LIPIDS
        RT: PHOTOSYNTHESIS
        RT: PHOTOSYNTHETIC PIGMENTS

    CARRAGEENINS
        BT: SEAWEED PRODUCTS
        RT: AGAR
        RT: ALGINATES
        RT: CHEMICAL EXTRACTION

    CARTILAGE
        Notes: A form of connective tissue of vertebrates. Before 1982 search TISSUES
        BT: CONNECTIVE TISSUES
        RT: BONES
        RT: HISTOLOGY
        RT: MUSCULOSKELETAL SYSTEM

    CARTOGRAPHY
        RT: ATLASES
        RT: AUTOMATED CARTOGRAPHY
        RT: BATHYMETRIC SURVEYS

    CASCADING
        BT: VERTICAL WATER MOVEMENT
        RT: BOLUSES
        RT: OVERFLOW
        RT: SLOPE PROCESSES

    CASSITERITE
        BT: OXIDE MINERALS
        RT: PLACERS
        RT: TIN

    CAST NETS
        BT: FISHING NETS
        RT: COASTAL FISHERIES

    CASTRATION
        Notes: Added in 1980
        BT: ORGAN REMOVAL
        RT: OVARIES
        RT: PARASITIC CASTRATION
        RT: SEXUAL REPRODUCTION

    CATABOLISM
        BT: METABOLISM
        RT: ANABOLISM

    CATADROMOUS MIGRATIONS
        BT: SPAWNING MIGRATIONS
        RT: AMPHIHALINE SPECIES
        RT: ANADROMOUS MIGRATIONS
        RT: BRACKISHWATER FISH

    CATADROMOUS SPECIES
        Notes: Having the habit to migrate from fresh to salt water to spawn
        BT: AMPHIHALINE SPECIES
        RT: CATADROMOUS MIGRATIONS
        RT: SPAWNING GROUNDS
        RT: SPAWNING MIGRATIONS

    CATAGENESIS
        RT: DIAGENESIS
        RT: SEDIMENTS

    CATALOGUES
        BT: DOCUMENTS
        NT: BOOK CATALOGUES
        NT: CHART CATALOGUES
        NT: INVENTORIES
        RT: COLLECTIONS
        RT: DATA COLLECTIONS
        RT: EQUIPMENT

    CATALYSTS
        RT: CHEMICAL KINETICS
        RT: CHEMICAL REACTIONS
        RT: ENZYMATIC ACTIVITY

    CATAMARANS
        BT: SURFACE CRAFT
        RT: BOATS
        RT: RESEARCH VESSELS
        RT: SHIP HULLS

    CATASTROPHIC WAVES
        RT: FREAK WAVES
        RT: STORM SURGES
        RT: TSUNAMIS

    CATCH COMPOSITION
        RT: BY CATCH
        RT: CATCH STATISTICS
        RT: COMMERCIAL SPECIES

    CATCH/EFFORT
        BT: FISHERY DATA
        RT: BY CATCH
        RT: CATCH STATISTICS
        RT: CATCHABILITY

    CATCH STATISTICS
        BT: FISHERY STATISTICS
        NT: FISH CATCH STATISTICS
        NT: HUNTING STATISTICS
        NT: SEAWEED STATISTICS
        NT: SHELLFISH CATCH STATISTICS
        NT: WHALING STATISTICS
        RT: CATCH COMPOSITION
        RT: CATCH/EFFORT
        RT: COMMERCIAL FISHING

    CATCHABILITY
        Notes: Added in 1982
        RT: AVOIDANCE REACTIONS
        RT: CATCH/EFFORT
        RT: CATCHING METHODS

    CATCHERS
        Notes: Vessels weaponed with harpoon gun used for hunting whales
        BT: FISHING VESSELS
        RT: FACTORY SHIPS
        RT: WHALING
        RT: WHALING STATIONS

    CATCHING METHODS
        NT: ANGLING
        NT: AUTOMATED FISHING PLATFORMS
        NT: ELECTRIC FISHING
        NT: EXPLOSIVE FISHING
        NT: FISH POISONING
        NT: FISHING BY DIVING
        NT: FISHING WITHOUT GEAR
        NT: GRAPPLING
        NT: LIGHT FISHING
        NT: LINE FISHING
        NT: NET FISHING
        NT: POT FISHING
        NT: PUMP FISHING
        NT: SEINING
        NT: SPEAR FISHING
        NT: TRAP FISHING
        NT: TRAWLING
        NT: WORM FISHING
        NT: WOUNDING
        RT: ATTRACTING TECHNIQUES
        RT: CATCHABILITY
        RT: COMMERCIAL FISHING

    CATCHMENT AREA
        RT: LAKE BASINS
        RT: RIVER BASINS
        RT: RUNOFF

    CATENARY
        BT: DEFLECTION
        RT: CABLE DYNAMICS
        RT: CABLES
        RT: MOORING LINES

    CATHODES
        BT: ELECTRODES

    CATHODIC PROTECTION
        BT: CORROSION CONTROL
        RT: IMPRESSED CURRENTS
        RT: SACRIFICIAL ANODES

    CATIONS
        BT: IONS
        RT: ELECTROLYSIS
        RT: EXCHANGE CAPACITY
        RT: ION EXCHANGE

    CAUSTICS
        RT: ORTHOGONALS
        RT: WAVE REFRACTION DIAGRAMS

    CAVERNICOLOUS SPECIES
        BT: SPECIES
        RT: CAVES
        RT: SPELAEOLOGY

    CAVES
        Notes: Restricted to marine subterranean environment
        BT: COASTAL LANDFORMS
        RT: CAVERNICOLOUS SPECIES
        RT: CLIFFS
        RT: EROSION FEATURES

    CAVIAR
        Notes: Sturgeon eggs detached from roe, sorted, washed and salted, or fish roe prepared like caviar. Added in 1980
        BT: ROES

    CAVITATION
        BT: TURBULENT FLOW
        RT: ACOUSTIC PROPERTIES
        RT: AIR BUBBLES
        RT: BUBBLES

    CAYS
        BT: ISLANDS
        RT: CORAL REEFS

    CELESTIAL NAVIGATION
        BT: NAVIGATION
        RT: ASTRONOMY
        RT: INERTIAL NAVIGATION
        RT: NAUTICAL ALMANACS

    CELESTITE
        BT: SULPHATE MINERALS

    CELL CONSTITUENTS
        NT: CELL MEMBRANES
        NT: CELL ORGANELLES
        NT: CELL WALLS
        NT: CHROMOSOMES
        NT: CYTOPLASM
        NT: NUCLEI
        RT: CELL DIVISION
        RT: CELL MORPHOLOGY
        RT: CELLS

    CELL COUNTERS
        Notes: Added in 1980
        BT: COUNTERS
        RT: CELLS
        RT: PHYTOPLANKTON

    CELL CULTURE
        BT: LABORATORY CULTURE
        RT: CELLS
        RT: CULTURE MEDIA
        RT: PHYTOPLANKTON CULTURE

    CELL DIFFERENTIATION
        Notes: Added in 1980
        RT: CELL MORPHOLOGY
        RT: CELLS
        RT: CYTOLOGY

    CELL DIVISION
        BT: REPRODUCTION
        NT: MEIOSIS
        NT: MITOSIS
        RT: CELL CONSTITUENTS
        RT: CELL FUSION
        RT: CELLS

    CELL FUSION
        RT: CELL DIVISION

    CELL INCLUSIONS
        Notes: Any non living material present in the cytoplasm, whether organic or inorganic. Added in 1980
        RT: CELLS
        RT: CYTOPLASM

    CELL MEMBRANES
        BT: CELL CONSTITUENTS
        RT: BIOLOGICAL MEMBRANES
        RT: CELL WALLS
        RT: CYTOLOGY

    CELL MORPHOLOGY
        Notes: Added in 1980
        BT: ORGANISM MORPHOLOGY
        RT: CELL CONSTITUENTS
        RT: CELL DIFFERENTIATION
        RT: CYTOLOGY

    CELL ORGANELLES
        Notes: Specialized part of a cell having specific functions. Added in 1980
        BT: CELL CONSTITUENTS
        NT: GOLGI APPARATUS
        RT: CYTOLOGY

    CELL WALLS
        Notes: Outermost rigid layer of a plant cell. Added in 1980
        BT: CELL CONSTITUENTS
        RT: CELL MEMBRANES

    CELLS
        NT: AMOEBOCYTES
        NT: BLOOD CELLS
        NT: NEURONS
        NT: RECEPTORS
        NT: SEXUAL CELLS
        RT: ANATOMICAL STRUCTURES
        RT: CELL CONSTITUENTS
        RT: CELL COUNTERS

    CELLULAR CONVECTION
        BT: CONVECTION
        RT: ATMOSPHERIC BOUNDARY LAYER
        RT: MANTLE CONVECTION
        RT: WINDROWS

    CELLULOSE
        Notes: Before 1982 use CARBOHYDRATES
        BT: POLYSACCHARIDES

    CEMENTATION
        BT: DIAGENESIS
        RT: CLASTICS
        RT: CONSOLIDATION
        RT: LITHIFICATION

    CENOZOIC
        Notes: Before 1982 search CENOZOIC ERA
        BT: GEOLOGICAL TIME
        NT: QUATERNARY
        NT: TERTIARY
        RT: PHANEROZOIC

    CENSUS
        RT: BIOLOGICAL DATA
        RT: BIOLOGICAL SAMPLING
        RT: DATA COLLECTIONS

    CENTRAL NERVOUS SYSTEM
        Notes: Added in 1980
        BT: NERVOUS SYSTEM
        NT: BRAIN
        NT: GANGLIA
        NT: SPINAL CORD
        RT: SENSE ORGANS

    CENTRIFUGAL FORCE
        BT: FORCES
        RT: ACCELERATION
        RT: CENTRIFUGES
        RT: CENTRIPETAL FORCE

    CENTRIFUGATION
        BT: SEPARATION
        RT: ANALYTICAL TECHNIQUES
        RT: CENTRIFUGES
        RT: WATER FILTRATION

    CENTRIFUGES
        BT: LABORATORY EQUIPMENT
        RT: CENTRIFUGAL FORCE
        RT: CENTRIFUGATION
        RT: CENTRIPETAL FORCE

    CENTRIPETAL FORCE
        BT: FORCES
        RT: ACCELERATION
        RT: CENTRIFUGAL FORCE
        RT: CENTRIFUGES

    CEPHALOPOD FISHERIES
        Notes: Added in 1982
        BT: MOLLUSC FISHERIES
        RT: JIGGING
        RT: LAMPARA NETS
        RT: LIGHT FISHING

    CEPHALOTHORAX
        Notes: Added in 1980
        BT: BODY REGIONS
        RT: ANIMAL APPENDAGES
        RT: CARAPACE
        RT: THORAX

    CERAMICS
        BT: MATERIALS

    CERIUM
        BT: CHEMICAL ELEMENTS
        RT: CERIUM COMPOUNDS
        RT: CERIUM ISOTOPES
        RT: RARE EARTHS

    CERIUM COMPOUNDS
        RT: CERIUM
        RT: CHEMICAL COMPOUNDS

    CERIUM ISOTOPES
        BT: ISOTOPES
        RT: CERIUM

    CERTIFICATION
        RT: EVALUATION
        RT: FLOATING STRUCTURES
        RT: PERFORMANCE ASSESSMENT

    CETOLOGISTS
        BT: MAMMALOGISTS
        RT: CETOLOGY
        RT: DIRECTORIES
        RT: WHALING

    CETOLOGY
        Notes: Added in 1980
        BT: MAMMALOGY
        RT: AMBERGRIS
        RT: AQUATIC MAMMALS
        RT: BIPOLAR DISTRIBUTION

    CHAIN
        RT: ANCHORING
        RT: CABLES
        RT: MOORING LINES

    CHALK
        BT: CARBONATE ROCKS
        RT: COCCOLITHS
        RT: SEDIMENTARY ROCKS

    CHANDLER WOBBLE
        RT: EARTH ROTATION
        RT: POLE TIDES

    CHANNEL FLOW
        Notes: Includes flow through pipes and conduits
        BT: FLUID FLOW
        RT: BED ROUGHNESS
        RT: FLOWMETERS
        RT: FLUVIAL TRANSPORT

    CHANNELS
        NT: NAVIGATIONAL CHANNELS
        RT: CANALS
        RT: DREDGERS
        RT: DREDGING

    CHART CATALOGUES
        BT: CATALOGUES
        RT: MAPS
        RT: NAVIGATIONAL CHARTS

    CHART DATUM
        BT: DATUM LEVELS
        RT: MAPS
        RT: NAVIGATIONAL CHARTS

    CHECK LISTS
        Notes: Any relatively extensive list of a group of organisms by species
        RT: COMMUNITY COMPOSITION
        RT: IDENTIFICATION KEYS
        RT: NEW SPECIES

    ABCDEFGHIJKLMNOPQRSTUVWXYZ


    CHELATES
        RT: CHEMICAL COMPOUNDS
        RT: HAEMOGLOBINS
        RT: METALS

    CHEMICAL ANALYSIS
        RT: ANALYSIS
        RT: ANALYTICAL TECHNIQUES
        RT: ASH CONTENT

    CHEMICAL COMPOSITION
        BT: COMPOSITION
        RT: CHEMICAL ANALYSIS
        RT: CHEMICAL ELEMENTS
        RT: CHEMICAL PROPERTIES

    CHEMICAL COMPOUNDS

    CHEMICAL COMPOUNDS
        Notes: Use of a more specific term is recommended; consult terms listed below
        RT: ACTINIUM COMPOUNDS
        RT: ADP
        RT: ALCOHOLS

    CHEMICAL CONTROL
        Notes: Use of chemicals to control noxious organisms
        BT: CONTROL
        RT: ANTIFOULING SUBSTANCES
        RT: BACTERIOCIDES
        RT: BIOLOGICAL DAMAGE

    CHEMICAL CYCLES
        BT: CYCLES
        RT: BIOCHEMICAL CYCLES
        RT: CARBON CYCLE
        RT: GEOCHEMICAL CYCLES

    CHEMICAL DEGRADATION
        BT: DEGRADATION
        RT: BIOCHEMICAL CYCLES
        RT: BIOGEOCHEMICAL CYCLE
        RT: CHEMICAL REACTIONS

    CHEMICAL ELEMENTS

    CHEMICAL ELEMENTS
        Notes: Use of a more specific term is recommended
        NT: ACTINIUM
        NT: ALUMINIUM
        NT: AMERICIUM
        NT: ANTIMONY
        NT: ARGON
        NT: ARSENIC
        NT: ASTATINE
        NT: BARIUM
        NT: BERKELIUM
        NT: BERYLLIUM
        NT: BISMUTH
        NT: BORON
        NT: BROMINE
        NT: CADMIUM
        NT: CAESIUM
        NT: CALCIUM
        NT: CALIFORNIUM
        NT: CARBON
        NT: CERIUM
        NT: CHLORINE
        NT: CHROMIUM
        NT: COBALT
        NT: COPPER
        NT: CURIUM
        NT: DYSPROSIUM
        NT: EINSTEINIUM
        NT: ERBIUM
        NT: EUROPIUM
        NT: FERMIUM
        NT: FLUORINE
        NT: FRANCIUM
        NT: GADOLINIUM
        NT: GALLIUM
        NT: GERMANIUM
        NT: GOLD
        NT: HAFNIUM
        NT: HELIUM
        NT: HOLMIUM
        NT: HYDROGEN
        NT: INDIUM
        NT: IODINE
        NT: IRIDIUM
        NT: IRON
        NT: KRYPTON
        NT: LANTHANIUM
        NT: LAWRENCIUM
        NT: LEAD
        NT: LITHIUM
        NT: LUTETIUM
        NT: MAGNESIUM
        NT: MANGANESE
        NT: MENDELEVIUM
        NT: MERCURY
        NT: MOLYBDENUM
        NT: NEODYMIUM
        NT: NEON
        NT: NEPTUNIUM
        NT: NICKEL
        NT: NIOBIUM
        NT: NITROGEN
        NT: NOBELIUM
        NT: OSMIUM
        NT: OXYGEN
        NT: PALLADIUM
        NT: PHOSPHORUS
        NT: PLATINUM
        NT: PLUTONIUM
        NT: POLONIUM
        NT: POTASSIUM
        NT: PRASEODYMIUM
        NT: PROMETHIUM
        NT: PROTACTINIUM
        NT: RADIUM
        NT: RADON
        NT: RHENIUM
        NT: RHODIUM
        NT: RUBIDIUM
        NT: RUTHENIUM
        NT: RUTHERFORDIUM
        NT: SAMARIUM
        NT: SCANDIUM
        NT: SELENIUM
        NT: SILICON
        NT: SILVER
        NT: SODIUM
        NT: STRONTIUM
        NT: SULPHUR
        NT: TANTALUM
        NT: TECHNETIUM
        NT: TELLURIUM
        NT: TERBIUM
        NT: THALLIUM
        NT: THORIUM
        NT: THULIUM
        NT: TIN
        NT: TITANIUM
        NT: TUNGSTEN
        NT: URANIUM
        NT: VANADIUM
        NT: XENON
        NT: YTTERBIUM
        NT: YTTRIUM
        NT: ZINC
        NT: ZIRCONIUM
        RT: ALKALI METALS
        RT: ALKALINE EARTH METALS
        RT: ALLOYS

    CHEMICAL ENGINEERING
        BT: ENGINEERING
        RT: PETROLEUM ENGINEERING
        RT: PROCESS PLANTS

    CHEMICAL EQUILIBRIUM
        RT: CHEMICAL KINETICS
        RT: CHEMICAL REACTIONS
        RT: EQUILIBRIUM

    CHEMICAL EXTRACTION
        Notes: Extraction of fats, enzymes, seaweed products, oils, protein, concentrates, stickwater, etc.
        BT: SEPARATION
        RT: AGAR
        RT: ALGINATES
        RT: ANIMAL OIL EXTRACTION

    CHEMICAL KINETICS
        RT: CATALYSTS
        RT: CHEMICAL EQUILIBRIUM
        RT: CHEMICAL REACTIONS

    CHEMICAL LIMNOLOGY
        Notes: Before 1982 search also LIMNOLOGY (CHEMICAL)
        BT: LIMNOLOGY
        RT: CHEMICAL PROPERTIES
        RT: CHEMISTRY
        RT: ESTUARINE CHEMISTRY

    CHEMICAL OCEANOGRAPHY
        BT: OCEANOGRAPHY
        RT: CHEMICAL PROPERTIES
        RT: CHEMISTRY
        RT: ESTUARINE CHEMISTRY

    CHEMICAL OXYGEN DEMAND
        BT: OXYGEN DEMAND
        RT: BIOCHEMICAL OXYGEN DEMAND
        RT: CHEMICAL PROPERTIES
        RT: DISSOLVED OXYGEN

    CHEMICAL PLUMES
        BT: PLUMES
        RT: CHEMICAL POLLUTION
        RT: CHEMICAL SPILLS

    CHEMICAL POLLUTANTS
        Notes: Any pollutants of chemical origin (organic and inorganic)
        BT: POLLUTANTS
        RT: AGRICULTURAL POLLUTION
        RT: AGRICULTURAL RUNOFF
        RT: ALGICIDES

    CHEMICAL POLLUTION
        Notes: pollution (chemical)
        BT: POLLUTION
        RT: AGRICULTURAL POLLUTION
        RT: AGRICULTURAL RUNOFF
        RT: ALGICIDES

    CHEMICAL PRECIPITATION
        Notes: Before 1982 search PRECIPITATION (CHEMISTRY)
        BT: SEPARATION
        NT: COPRECIPITATION
        NT: FLOCCULATION
        RT: CHEMICAL PROPERTIES
        RT: CHEMICAL REACTIONS
        RT: CHEMISTRY

    CHEMICAL PROPERTIES
        BT: PROPERTIES
        NT: ACIDITY
        NT: ALKALINITY
        NT: PH
        NT: REDOX POTENTIAL
        NT: SALINITY
        NT: SOLUBILITY
        RT: ASH CONTENT
        RT: CHEMICAL COMPOSITION
        RT: CHEMICAL LIMNOLOGY

    CHEMICAL REACTIONS
        Notes: Use of a more specific term is recommended
        NT: AMINATION
        NT: AUTOLYSIS
        NT: CARBOXYLATION
        NT: COAGULATION
        NT: CORROSION
        NT: DEAMINATION
        NT: DECARBOXYLATION
        NT: DEGRADATION
        NT: DEHYDRATION
        NT: DENITRIFICATION
        NT: DEPOLYMERIZATION
        NT: DISSOCIATION
        NT: ELECTROLYSIS
        NT: FERMENTATION
        NT: HALOGENATION
        NT: HYDROLYSIS
        NT: ISOMERIZATION
        NT: NITRIFICATION
        NT: NITROGEN FIXATION
        NT: OXIDATION
        NT: PHOTOCHEMICAL REACTIONS
        NT: POLYMERIZATION
        NT: REDOX REACTIONS
        NT: REDUCTION
        RT: BIOCHEMICAL PHENOMENA
        RT: BUFFERS
        RT: CATALYSTS

    CHEMICAL SEDIMENTS
        Notes: Search also AUTHIGENES before 1983
        BT: SEDIMENTS
        NT: CONCRETIONS
        NT: FERRUGINOUS DEPOSITS
        NT: FLINT
        NT: HYDROTHERMAL DEPOSITS
        NT: MANGANESE DEPOSITS
        NT: METALLIFEROUS SEDIMENTS
        NT: NODULES
        NT: PHOSPHATE ROCKS
        NT: SUBMARINE CEMENTS
        NT: SULPHIDE DEPOSITS
        RT: ANHYDRITE
        RT: AUTHIGENESIS
        RT: AUTHIGENIC MINERALS

    CHEMICAL SPECIATION
        RT: CHEMISTRY

    CHEMICAL SPILLS
        BT: ACCIDENTS
        RT: CHEMICAL PLUMES

    CHEMICAL STIMULI
        BT: STIMULI
        RT: CHEMORECEPTION
        RT: CHEMORECEPTORS
        RT: CHEMOTAXIS

    CHEMILUMINESCENCE
        BT: LUMINESCENCE
        RT: AIRGLOW
        RT: BIOLUMINESCENCE
        RT: CHEMICAL REACTIONS

    CHEMISTRY
        Notes: Use of a more specific term is recommended
        NT: ATMOSPHERIC CHEMISTRY
        NT: BIOCHEMISTRY
        NT: ELECTROCHEMISTRY
        NT: GEOCHEMISTRY
        NT: PHOTOCHEMISTRY
        NT: RADIOCHEMISTRY
        NT: SURFACE CHEMISTRY
        RT: ANALYTICAL TECHNIQUES
        RT: CHEMICAL COMPOSITION
        RT: CHEMICAL ELEMENTS

    CHEMORECEPTION
        Notes: Any sensory perception of ions or chemical compounds
        RT: ALARM SUBSTANCES
        RT: CHEMICAL STIMULI
        RT: CHEMORECEPTORS

    CHEMORECEPTORS
        BT: SENSE ORGANS
        RT: CHEMICAL STIMULI
        RT: CHEMORECEPTION
        RT: OLFACTION

    CHEMOSYNTHESIS
        RT: BACTERIA
        RT: BIOSYNTHESIS
        RT: NUTRIENTS (MINERAL)

    CHEMOTAXIS
        BT: TAXIS
        RT: CHEMICAL STIMULI
        RT: CHEMOTROPISM
        RT: OLFACTORY ORGANS

    CHEMOTAXONOMY
        Notes: The classification of organisms on the basis of the distribution and composition of their chemical substances. Added in 1980
        BT: TAXONOMY
        RT: BACTERIA
        RT: CHEMICAL COMPOSITION
        RT: DNA

    CHEMOTROPISM
        BT: TROPISM
        RT: CHEMICAL STIMULI
        RT: CHEMORECEPTION
        RT: CHEMOTAXIS

    CHENIER PLAINS
        BT: COASTAL LANDFORMS
        RT: CHENIERS

    CHENIERS
        BT: BEACH RIDGES
        RT: CHENIER PLAINS
        RT: WETLANDS
        RT: FLINT

    CHERTIFICATION
        RT: CHERTS
        RT: DIAGENESIS
        RT: METASOMATISM

    CHERTS
        BT: SILICEOUS ROCKS
        RT: CHEMICAL SEDIMENTS
        RT: CHERTIFICATION
        RT: CONCRETIONS

    CHILLED PRODUCTS
        BT: PROCESSED FISHERY PRODUCTS
        RT: CHILLING STORAGE
        RT: FISH HANDLING
        RT: FREEZING

    CHILLING STORAGE
        BT: COLD STORAGE
        RT: CHILLED PRODUCTS
        RT: STORAGE

    CHITIN
        BT: MUCOPOLYSACCHARIDES
        RT: CARAPACE
        RT: CHITOSAN
        RT: CUTICLES

    CHITOSAN
        Notes: Added in 1980
        RT: CHITIN

    CHLORIC ACID
        BT: INORGANIC ACIDS
        RT: CHLORINE COMPOUNDS
        RT: FLUORINE COMPOUNDS

    CHLORIDES
        BT: CHLORINE COMPOUNDS
        RT: HALIDES
        RT: SODIUM CHLORIDE

    CHLORINATED HYDROCARBONS
        BT: HALOGENATED HYDROCARBONS
        NT: ALDRIN
        NT: CHLOROFORM
        NT: DDE
        NT: DDT
        NT: DIELDRIN
        NT: TRICHLOROETHYLENE
        RT: PESTICIDES

    CHLORINATION
        Notes: Sterilization of water with chlorine or chlorine compounds. Added in 1980
        BT: HALOGENATION
        RT: CHLORINE
        RT: DECHLORINATION
        RT: DISINFECTION

    CHLORINE
        BT: CHEMICAL ELEMENTS
        RT: BROMINE
        RT: CHLORINATION
        RT: CHLORINE COMPOUNDS

    CHLORINE COMPOUNDS
        BT: HALOGEN COMPOUNDS
        NT: CHLORIDES
        RT: BRINES
        RT: CHEMICAL COMPOUNDS
        RT: CHLORIC ACID

    CHLORINE ISOTOPES
        BT: ISOTOPES
        RT: CHLORINE

    CHLORINITY
        BT: SALINITY
        RT: CHLORINE COMPOUNDS
        RT: CHLOROSITY
        RT: FLUORINE COMPOUNDS

    CHLORITE
        BT: CLAY MINERALS
        RT: SLATES

    CHLOROFORM
        BT: CHLORINATED HYDROCARBONS
        RT: METHANE

    CHLOROPHYLLS
        BT: PHOTOSYNTHETIC PIGMENTS
        RT: CHLOROPLASTS
        RT: PHOTOSYNTHESIS
        RT: PORPHYRINS

    CHLOROPLASTS
        RT: CELLS
        RT: CHLOROPHYLLS
        RT: CHROMATOPHORES

    CHLOROSITY
        Notes: Chlorinity in grams/litre
        BT: SALINITY
        RT: CHLORINITY
        RT: WATER DENSITY
        RT: WATER PROPERTIES

    CHOLESTEROL
        Notes: Added in 1980
        BT: STEROLS
        RT: BLOOD CELLS

    CHOLINE
        BT: ALCOHOLS
        RT: LIPIDS

    CHOLINESTERASE INHIBITORS
        BT: ENZYME INHIBITORS
        RT: DRUGS
        RT: ENZYMES
        RT: MUSCLES

    CHROMATIC ADAPTATIONS
        BT: ADAPTATIONS
        RT: CHROMATIC BEHAVIOUR
        RT: CHROMATIC PIGMENTS
        RT: COLOUR

    CHROMATIC BEHAVIOUR
        BT: BEHAVIOUR
        RT: CHROMATIC ADAPTATIONS
        RT: CHROMATIC PIGMENTS
        RT: CHROMATOPHORES

    CHROMATIC PIGMENTS
        BT: PIGMENTS
        NT: CAROTENOIDS
        RT: ALBINISM
        RT: CHROMATIC ADAPTATIONS
        RT: CHROMATIC BEHAVIOUR

    CHROMATOGRAPHIC TECHNIQUES
        BT: ANALYTICAL TECHNIQUES
        NT: GAS CHROMATOGRAPHY
        RT: ADSORPTION
        RT: COLORIMETRIC TECHNIQUES
        RT: LIGHT ABSORPTION

    CHROMATOPHORES
        RT: CELLS
        RT: CHLOROPLASTS
        RT: CHROMATIC BEHAVIOUR

    CHROMITE
        BT: OXIDE MINERALS
        RT: CHROMIUM
        RT: PLACERS

    CHROMIUM
        BT: CHEMICAL ELEMENTS
        RT: CHROMITE
        RT: CHROMIUM COMPOUNDS
        RT: CHROMIUM ISOTOPES

    CHROMIUM COMPOUNDS
        RT: CHEMICAL COMPOUNDS
        RT: CHROMIUM

    CHROMIUM ISOTOPES
        BT: ISOTOPES
        RT: CHROMIUM

    ABCDEFGHIJKLMNOPQRSTUVWXYZ


    CHROMOSOMES
        BT: CELL CONSTITUENTS
        NT: GENES
        RT: CYTOLOGY
        RT: GENETICS
        RT: GENOMES

    CHRONOMETERS
        BT: EQUIPMENT
        NT: QUARTZ CLOCKS

    CHRONOSTRATIGRAPHY
        BT: STRATIGRAPHY
        RT: GEOLOGICAL TIME
        RT: PALAEONTOLOGY
        RT: STRATIGRAPHIC CORRELATION

    CIGUATERA
        BT: HUMAN DISEASES
        RT: CIGUATOXIN
        RT: POISONOUS FISH

    CIGUATOXIN
        BT: BIOLOGICAL POISONS
        RT: CIGUATERA
        RT: POISONOUS FISH

    CILIA
        BT: ANIMAL APPENDAGES
        RT: FLAGELLA
        RT: LOCOMOTION

    CIRCADIAN RHYTHMS
        Notes: Pertaining to 24-hour biological cycle
        BT: BIOLOGICAL RHYTHMS
        RT: BIOLOGICAL CLOCKS
        RT: DIURNAL VARIATIONS
        RT: MOON PHASES

    CIRCULATION
        Notes: Use of a more specific term is recommended. Added in 1982
        RT: ADVECTION
        RT: ATMOSPHERIC CIRCULATION
        RT: BLOOD CIRCULATION

    CIRCULATORY SYSTEM
        NT: BLOOD VESSELS
        NT: HEART
        RT: ANATOMY
        RT: BLOOD
        RT: BLOOD CELLS

    CITRATES
        BT: CARBOXYLIC ACID SALTS

    CIVIL ENGINEERING
        BT: ENGINEERING
        RT: COASTAL ENGINEERING

    CLAM CULTURE
        Notes: Before 1982 search MOLLUSC CULTURE
        BT: MOLLUSC CULTURE
        RT: MARINE AQUACULTURE
        RT: PREDATOR CONTROL
        RT: SEED COLLECTION

    CLAM FISHERIES
        Notes: Added in 1982
        BT: MOLLUSC FISHERIES
        RT: DREDGING
        RT: HARVESTING
        RT: MARINE FISHERIES

    CLASSIFICATION
        RT: CLASSIFICATION SYSTEMS

    CLASSIFICATION SYSTEMS
        Notes: Systems for classification of inanimate objects or ecological or biological attributes of organisms
        RT: CLASSIFICATION
        RT: NUMERICAL TAXONOMY
        RT: TAXONOMY

    CLASSIFIED DOCUMENTS
        BT: REPORT LITERATURE

    CLASTICS
        Notes: Before 1982 search CLASTIC SEDIMENTS
        BT: SEDIMENTS
        NT: ARENITES
        NT: BENTONITE
        NT: BOULDERS
        NT: BRECCIA
        NT: CLAYS
        NT: COBBLESTONE
        NT: CONTOURITES
        NT: FLYSCH
        NT: GRAVEL
        NT: MARLSTONE
        NT: MUD
        NT: MUDSTONE
        NT: PEBBLES
        NT: SAND
        NT: SANDSTONE
        NT: SHALE
        NT: SHINGLE
        NT: SILT
        NT: SILTSTONE
        NT: TURBIDITES
        RT: ALLUVIAL DEPOSITS
        RT: BOULDER CLAY
        RT: CEMENTATION

    CLAY MINERALS
        BT: SILICATE MINERALS
        NT: CHLORITE
        NT: ILLITE
        NT: KAOLIN
        NT: KAOLINITE
        NT: MONTMORILLONITE
        NT: NONTRONITE
        NT: PALYGORSKITE
        NT: SAPONITE
        NT: SMECTITE
        NT: VERMICULITE
        RT: ARGILLACEOUS DEPOSITS
        RT: BAUXITE
        RT: CLAYS

    CLAYS
        BT: CLASTICS
        NT: FULLERS EARTH
        NT: PELAGIC CLAY
        RT: ARGILLACEOUS DEPOSITS
        RT: CLAY MINERALS
        RT: KAOLIN

    CLEANING
        NT: TANK CLEANING
        RT: PIGGING
        RT: SCALING

    CLEANING BEHAVIOUR
        Notes: Added in 1980
        BT: BEHAVIOUR
        RT: AQUARIOLOGY
        RT: SYMBIOSIS

    CLEAR AIR TURBULENCE
        BT: ATMOSPHERIC TURBULENCE
        RT: JET STREAM
        RT: KELVIN-HELMHOLTZ INSTABILITY

    CLIFFS
        BT: COASTAL LANDFORMS
        RT: CAVES
        RT: EROSION FEATURES
        RT: FAULT SCARPS

    CLIMATE
        NT: HYDROCLIMATE
        NT: PALAEOCLIMATE
        NT: WEATHER
        RT: AIR TEMPERATURE
        RT: ATMOSPHERIC PRESSURE
        RT: BIOCLIMATOLOGY

    CLIMATE PREDICTION
        BT: PREDICTION
        RT: CLIMATE
        RT: WEATHER FORECASTING

    CLIMATIC CHANGES
        RT: AIR POLLUTION
        RT: ATMOSPHERIC CHEMISTRY
        RT: CARBON DIOXIDE

    CLIMATIC DATA
        BT: METEOROLOGICAL DATA
        RT: CLIMATE
        RT: CLIMATOLOGICAL CHARTS
        RT: CLIMATOLOGY

    CLIMATIC ZONES
        Notes: Mainly related to hydroclimate
        NT: POLAR ZONES
        NT: SUBTROPICAL ZONES
        NT: TEMPERATE ZONES
        RT: ARID ENVIRONMENTS
        RT: CLIMATE
        RT: CLIMATOLOGY

    CLIMATOLOGICAL CHARTS
        BT: MAPS
        RT: ATLASES
        RT: CLIMATIC DATA
        RT: ISOHYETS

    CLIMATOLOGY
        NT: BIOCLIMATOLOGY
        NT: PALAEOCLIMATOLOGY
        RT: AIR TEMPERATURE
        RT: ANTICYCLONES
        RT: ATMOSPHERIC PRESSURE

    CLIMAX COMMUNITY
        Notes: A stable community by climax formation as consequence of a successional series of ecological changes
        RT: AQUATIC COMMUNITIES
        RT: COMMUNITY COMPOSITION
        RT: DOMINANT SPECIES

    CLINES
        Notes: Added in 1980
        NT: ECOCLINES
        NT: GEOCLINES
        RT: HALOCLINE
        RT: THERMOCLINE

    CLINOPTILONITE
        BT: ZEOLITES

    CLONES
        Notes: Groups of organisms genetically identical. Added in 1980
        RT: AQUATIC ORGANISMS
        RT: ASEXUAL REPRODUCTION
        RT: CELLS

    CLOSURE APPROXIMATION
        BT: APPROXIMATION

    CLOUD COVER
        RT: CLOUDS
        RT: INSOLATION
        RT: SOLAR RADIATION

    CLOUD HEIGHT
        RT: CLOUDS
        RT: HEIGHT

    CLOUD PHYSICS
        BT: ATMOSPHERIC PHYSICS
        RT: CLOUDS

    CLOUDS
        BT: HYDROMETEORS
        NT: FOG
        RT: ATMOSPHERIC PRECIPITATIONS
        RT: CLOUD COVER
        RT: CLOUD HEIGHT

    CLUPEOID FISHERIES
        Notes: Added in 1982
        BT: FINFISH FISHERIES
        RT: BAIT FISH
        RT: COASTAL FISHERIES
        RT: MARINE FISHERIES

    CLUTCH
        Notes: Added in 1980
        RT: BIRD EGGS
        RT: HATCHING
        RT: NESTING

    CNOIDAL WAVES
        BT: SHALLOW-WATER WAVES
        RT: NONLINEAR WAVES
        RT: SURFACE GRAVITY WAVES

    COAGULANTS
        Notes: Added in 1980
        RT: ADDITIVES
        RT: AGENTS
        RT: ANTICOAGULANTS

    COAGULATION
        Notes: Added in 1980
        BT: CHEMICAL REACTIONS
        RT: BIOCHEMICAL OXYGEN DEMAND
        RT: BLOOD
        RT: COAGULANTS

    COAL
        BT: FOSSIL FUELS
        RT: MINING
        RT: SAPROPELITE

    COARSE FISH
        Notes: Freshwater fish not belonging to the family Salmonidae
        BT: FRESHWATER FISH

    COAST DEFENCES
        Notes: Before 1982 search also COASTAL STRUCTURES
        BT: COASTAL STRUCTURES
        NT: BREAKWATERS
        NT: GROYNES
        NT: SEA WALLS
        NT: STORM SURGE BARRIERS
        RT: BEACH EROSION
        RT: COASTAL ENGINEERING
        RT: COASTAL ZONE

    COAST EFFECT
        RT: ELECTRICAL EXPLORATION
        RT: GRAVITY EXPLORATION
        RT: MAGNETIC EXPLORATION

    COASTAL BOUNDARY LAYER
        BT: BOUNDARY LAYERS
        RT: COASTAL JETS
        RT: LAKE DYNAMICS
        RT: NEARSHORE DYNAMICS

    COASTAL COUNTERCURRENTS
        BT: COUNTERCURRENTS
        RT: COASTAL CURRENTS
        RT: COASTAL UPWELLING
        RT: OCEAN CURRENTS

    COASTAL CURRENTS
        BT: WATER CURRENTS
        RT: COASTAL COUNTERCURRENTS
        RT: COASTAL OCEANOGRAPHY
        RT: NEARSHORE DYNAMICS

    COASTAL ENGINEERING
        BT: ENGINEERING
        RT: BARRAGES
        RT: CIVIL ENGINEERING
        RT: COAST DEFENCES

    COASTAL EROSION
        BT: EROSION
        NT: BEACH EROSION
        RT: ALLUVIAL DEPOSITS
        RT: BEACHES
        RT: BREAKWATERS

    COASTAL FISHERIES
        BT: FISHERIES
        RT: ARTISANAL FISHING
        RT: BARRIERS
        RT: BEACH SEINES

    COASTAL GEODESY
        BT: GEODESY
        RT: MARINE GEODESY

    COASTAL INLETS
        BT: COASTAL WATERS
        NT: BAYS
        NT: DROWNED VALLEYS
        NT: ESTUARIES
        NT: FJORDS
        NT: INLETS (WATERWAYS)
        NT: TIDAL INLETS
        RT: COASTAL LAGOONS
        RT: COASTAL OCEANOGRAPHY
        RT: HARBOURS

    COASTAL JETS
        BT: JETS
        RT: COASTAL BOUNDARY LAYER
        RT: LAKE CURRENTS
        RT: LAKE DYNAMICS

    COASTAL LAGOONS
        BT: LAGOONS
        RT: AQUACULTURE
        RT: BARRIER ISLANDS
        RT: BARRIER SPITS

    COASTAL LANDFORMS
        BT: LANDFORMS
        NT: BARRIER ISLANDS
        NT: BEACHES
        NT: CAVES
        NT: CHENIER PLAINS
        NT: CLIFFS
        NT: DELTAS
        NT: HEADLANDS
        NT: PALAEOSHORELINES
        NT: ROCKY SHORES
        NT: STACKS
        NT: TIDAL FLATS
        RT: COASTAL MORPHOLOGY
        RT: DROWNED VALLEYS
        RT: ESTUARIES

    COASTAL MORPHOLOGY
        BT: GEOMORPHOLOGY
        NT: BEACH MORPHOLOGY
        RT: COASTAL LANDFORMS
        RT: ESTUARIES
        RT: FJORDS

    COASTAL OCEANOGRAPHY
        BT: OCEANOGRAPHY
        RT: COASTAL CURRENTS
        RT: COASTAL INLETS
        RT: COASTAL WATERS

    COASTAL STATES
        Notes: Added in 1980
        BT: COUNTRIES
        RT: COASTAL FISHERIES
        RT: COASTAL ZONE
        RT: COASTS

    COASTAL STRUCTURES
        BT: HYDRAULIC STRUCTURES
        NT: ARTIFICIAL HARBOURS
        NT: COAST DEFENCES
        NT: PIERS
        NT: PORT INSTALLATIONS
        RT: AIRPORTS
        RT: BARRAGES
        RT: COASTAL ENGINEERING

    COASTAL UPWELLING
        BT: UPWELLING
        RT: ARID ENVIRONMENTS
        RT: COASTAL COUNTERCURRENTS
        RT: DIVERGENCE

    COASTAL WATERS
        NT: COASTAL INLETS
        NT: STRAITS
        RT: COASTAL LAGOONS
        RT: COASTAL OCEANOGRAPHY
        RT: COASTAL ZONE

    COASTAL ZONE
        Notes: The band of dry land and adjacent ocean space in which land ecology and use directly affect ocean space ecology and use, and vice versa
        RT: BARRAGES
        RT: BAYS
        RT: BEACHES

    COASTAL ZONE MANAGEMENT
        BT: MANAGEMENT
        NT: SHORE PROTECTION
        RT: BARRAGES
        RT: COAST DEFENCES
        RT: COASTAL ENGINEERING

    COASTGUARDS
        BT: PERSONNEL
        RT: HEALTH AND SAFETY
        RT: SURVEILLANCE AND ENFORCEMENT

    COASTS
        BT: LANDFORMS
        NT: EMERGENT SHORELINES
        NT: RELICT SHORELINES
        NT: STRANDLINES
        NT: SUBMERGED SHORELINES
        RT: BEACHES
        RT: COASTAL EROSION
        RT: COASTAL LAGOONS

    COATING MATERIALS
        BT: MATERIALS
        NT: PAINTS
        NT: PLASTIC COATINGS
        NT: PRIMERS
        RT: ANTIFOULING SUBSTANCES
        RT: FILMS
        RT: FOULING CONTROL

    COATING PROCESSES
        RT: CORROSION CONTROL
        RT: FOULING CONTROL
        RT: PAINTS

    COAXIAL CABLES
        BT: ELECTRIC CABLES
        RT: SUBMARINE CABLES

    COBALT
        BT: CHEMICAL ELEMENTS
        RT: COBALT COMPOUNDS
        RT: COBALT ISOTOPES
        RT: FERROMANGANESE NODULES

    ABCDEFGHIJKLMNOPQRSTUVWXYZ


    COBALT COMPOUNDS
        RT: CHEMICAL COMPOUNDS
        RT: COBALT

    COBALT ISOTOPES
        BT: ISOTOPES
        RT: COBALT

    COBBLESTONE
        BT: CLASTICS
        RT: BOULDERS
        RT: RUDITES
        RT: SEDIMENTARY ROCKS

    COCCOLITHS
        Notes: Minute calcareous plates of algal, protozoan or protist origin
        RT: CALCAREOUS OOZE
        RT: CARBONATE SEDIMENTS
        RT: CHALK

    CODEX STANDARDS
        Notes: International standards for fish and fishery products. Added in 1980
        RT: ACCEPTABILITY
        RT: FISH HANDLING
        RT: FISH INSPECTION REGULATIONS

    COEFFICIENTS
        Notes: Used only as a qualifier
        RT: CONSTANTS
        RT: KURTOSIS
        RT: RATIOS

    COELOM
        Notes: Added in 1980
        BT: BODY CAVITIES
        RT: AMOEBOCYTES
        RT: COELOMIC FLUIDS

    COELOMIC FLUIDS
        Notes: Added in 1980
        BT: BODY FLUIDS
        RT: COELOM

    COENZYMES
        Notes: Added in 1980
        BT: ENZYMES
        NT: CYTOCHROMES
        RT: ENZYMATIC ACTIVITY
        RT: ENZYME INHIBITORS
        RT: VITAMINS

    COHESIONLESS SEDIMENTS
        RT: COHESIVE SEDIMENTS
        RT: FLUIDIZED SEDIMENT FLOW
        RT: GRAIN FLOW

    COHESIVE SEDIMENTS
        BT: SEDIMENTS
        RT: COHESIONLESS SEDIMENTS
        RT: MUD
        RT: SHEAR STRENGTH

    COLD BRANDING
        Notes: Marking fish with liquid nitrogen. Added in 1982
        BT: MARKING

    COLD RESISTANCE
        Notes: Added in 1980
        BT: BIOLOGICAL RESISTANCE
        RT: CRYOBIOLOGY
        RT: ECOPHYSIOLOGY
        RT: ENVIRONMENTAL EFFECTS

    COLD SEASON
        Notes: Added in 1980
        BT: SEASONS
        RT: AIR TEMPERATURE
        RT: WATER TEMPERATURE

    COLD STORAGE
        NT: CHILLING STORAGE
        RT: FISH HANDLING
        RT: FISH STORAGE
        RT: FISHERY PRODUCTS

    COLLAPSE STRENGTH
        BT: STRENGTH
        RT: DEFORMATION
        RT: YIELD POINT

    COLLECTED PAPERS
        BT: DOCUMENTS
        NT: FESTSCHRIFTEN

    COLLECTING DEVICES
        Notes: Devices for collection of aquatic organisms
        NT: BACTERIA COLLECTING DEVICES
        NT: BENTHOS COLLECTING DEVICES
        NT: NEKTON COLLECTING DEVICES
        NT: PLANKTON COLLECTING DEVICES
        RT: BIOLOGICAL SAMPLING
        RT: LIMNOLOGICAL EQUIPMENT
        RT: OCEANOGRAPHIC EQUIPMENT

    COLLECTIONS
        Notes: Use of a more specific term is recommended
        NT: BIOLOGICAL COLLECTIONS
        NT: DATA COLLECTIONS
        NT: GEOLOGICAL COLLECTIONS
        NT: MINERAL COLLECTIONS
        NT: MUSEUM COLLECTIONS
        NT: SEDIMENT COLLECTIONS
        RT: CATALOGUES
        RT: MUSEUMS

    COLLIGATIVE PROPERTIES
        BT: PHYSICAL PROPERTIES
        RT: BOILING POINT
        RT: FREEZING POINT
        RT: OSMOTIC PRESSURE

    COLLISION AVOIDANCE
        RT: COLLISIONS
        RT: NAVIGATION REGULATIONS
        RT: NAVIGATIONAL AIDS

    COLLISIONS
        BT: ACCIDENTS
        RT: COLLISION AVOIDANCE
        RT: SHIP LOSSES
        RT: SINKING

    COLLOIDAL CLAY
        BT: SUSPENDED INORGANIC MATTER

    COLLOIDS
        NT: AEROSOLS
        NT: GELS
        RT: AGAR
        RT: BODY FLUIDS
        RT: CHEMICAL PRECIPITATION

    COLONIES
        RT: COLONIZATION
        RT: ECOLOGICAL ASSOCIATIONS
        RT: GEMMULES

    COLONIZATION
        RT: ALGAL SETTLEMENTS
        RT: ARTIFICIAL LAKES
        RT: ARTIFICIAL SUBSTRATA

    COLORIMETRIC TECHNIQUES
        BT: ANALYTICAL TECHNIQUES
        RT: CHROMATOGRAPHIC TECHNIQUES
        RT: COLOUR
        RT: LIGHT MEASURING INSTRUMENTS

    COLOUR
        BT: OPTICAL PROPERTIES
        NT: WATER COLOUR
        RT: BIOLOGICAL PROPERTIES
        RT: CHROMATIC ADAPTATIONS
        RT: CHROMATIC PIGMENTS

    COMMENSALISM
        BT: INTERSPECIFIC RELATIONSHIPS
        RT: COMMENSALS
        RT: EPIZOITES
        RT: PARASITES

    COMMENSALS
        Notes: Added in 1980
        RT: COMMENSALISM
        RT: SYMBIONTS

    COMMERCE
        RT: ECONOMICS
        RT: TRADE

    COMMERCIAL AVAILABILITY
        Notes: Commercial availability of primary and secondary fishery products
        BT: AVAILABILITY
        RT: ABUNDANCE
        RT: COST ANALYSIS
        RT: MARKET RESEARCH

    COMMERCIAL FISHING
        Notes: Any activities of fishing or harvesting of aquatic organisms for commercial purposes
        BT: FISHING OPERATIONS
        NT: FOREIGN FISHING
        RT: BAIT
        RT: BAIT CULTURE
        RT: BY CATCH

    COMMERCIAL LEGISLATION
        Notes: Before 1982 search MARKETING LEGISLATION
        BT: LEGISLATION
        NT: FISH INSPECTION REGULATIONS
        RT: CONTROL CHARTS
        RT: LEGAL ASPECTS
        RT: MARKETING

    COMMERCIAL SPECIES
        Notes: Animal or vegetal aquatic species of commercial value
        BT: SPECIES
        NT: UNDERUTILIZED SPECIES
        RT: AQUATIC ANIMALS
        RT: AQUATIC MAMMALS
        RT: AQUATIC PLANTS

    COMMON PROPERTY RESOURCES
        Notes: Natural resources held or used by all who choose to do so. Added in 1982
        BT: NATURAL RESOURCES
        RT: FISHERY RESOURCES

    COMMUNICATION
        RT: COMMUNICATION SATELLITES
        RT: COMMUNICATION SYSTEMS
        RT: SPEECH DISTORTION

    COMMUNICATION SATELLITES
        BT: SATELLITES
        RT: COMMUNICATION
        RT: COMMUNICATION SYSTEMS
        RT: SATELLITE COMMUNICATION

    COMMUNICATION SYSTEMS
        Notes: Before 1982 search also COMMUNICATION DEVICES
        NT: RADIO
        NT: SATELLITE COMMUNICATION
        NT: TELEMETRY
        NT: TELEPHONE SYSTEMS
        NT: TELEVISION SYSTEMS
        NT: TELEX
        RT: COMMUNICATION
        RT: COMMUNICATION SATELLITES
        RT: DIVING EQUIPMENT

    COMMUNITY COMPOSITION
        BT: COMPOSITION
        RT: AQUATIC COMMUNITIES
        RT: BIOCOENOSIS
        RT: BIOLOGICAL SURVEYS

    COMPACTION
        BT: DIAGENESIS
        RT: BEARING CAPACITY
        RT: CONSOLIDATION
        RT: LITHIFICATION

    COMPANIES
        BT: ORGANIZATIONS

    COMPARATIVE STUDIES
        Notes: Used only as a qualifier. Added in 1980
        RT: ANATOMY
        RT: COST ANALYSIS
        RT: ORGANISM MORPHOLOGY

    COMPASSES
        BT: MEASURING DEVICES
        NT: GYROCOMPASSES
        RT: DIRECTION INDICATORS
        RT: NAVIGATIONAL AIDS
        RT: SURVEYING

    COMPENSATION DEPTH
        Notes: Zone in aquatic environment where just enough light penetrates for the rate of photosynthesis to equal the rate of respiration
        NT: CARBONATE COMPENSATION DEPTH
        RT: AEROBIC RESPIRATION
        RT: DISPHOTIC ZONE
        RT: EUPHOTIC ZONE

    COMPETITION
        BT: INTERSPECIFIC RELATIONSHIPS
        RT: ASSOCIATED SPECIES
        RT: BIOTIC PRESSURE
        RT: COMPETITIVE BEHAVIOUR

    COMPETITIVE BEHAVIOUR
        BT: BEHAVIOUR
        RT: COMPETITION
        RT: COMPETITORS
        RT: HOME RANGE

    COMPETITORS
        RT: COMPETITION
        RT: COMPETITIVE BEHAVIOUR
        RT: PREDATORS

    COMPLEX LIPIDS
        Notes: Added in 1980
        BT: LIPIDS

    COMPONENTS
        Notes: Used only as a qualifier
        RT: EQUIPMENT
        RT: MATERIALS

    COMPOSITE MATERIALS
        BT: MATERIALS

    COMPOSITION
        Notes: The nature of the elements present in a substance or organism and the proportion in which they occur. Use of a more specific term is recommended
        NT: BIOCHEMICAL COMPOSITION
        NT: CHEMICAL COMPOSITION
        NT: COMMUNITY COMPOSITION
        NT: MINERAL COMPOSITION
        NT: SEDIMENT COMPOSITION
        RT: ANALYTICAL TECHNIQUES
        RT: BIOCHEMICAL ANALYSIS
        RT: CHEMICAL ANALYSIS

    COMPOUND EYES
        BT: EYES
        RT: AQUATIC INSECTS

    COMPRESSED GAS
        BT: GASES

    COMPRESSIBILITY
        BT: MECHANICAL PROPERTIES
        RT: BULK MODULUS
        RT: COMPRESSION
        RT: ELASTICITY

    COMPRESSION
        BT: STRESS
        RT: COMPRESSIBILITY
        RT: DECOMPRESSION
        RT: DEFORMATION

    COMPRESSIONAL WAVE VELOCITIES
        BT: SEISMIC VELOCITIES
        RT: P-WAVES
        RT: SEDIMENT PROPERTIES

    COMPRESSIVE STRENGTH
        BT: STRENGTH
        RT: POISSON'S RATIO

    COMPRESSORS
        RT: DIVING EQUIPMENT
        RT: LIFE SUPPORT SYSTEMS

    COMPUTATION
        Notes: Used only as a qualifier
        RT: COMPUTER PROGRAMS
        RT: MODELS

    COMPUTER PROGRAMS
        Notes: Used only as a qualifier. Before 1986 search also COMPUTER PROGRAMMES
        RT: ALGORITHMS
        RT: ARTIFICIAL INTELLIGENCE
        RT: BATCH PROCESSING

    COMPUTERS
        Notes: Added in 1982. Before 1985 search also MINICOMPUTERS
        BT: ELECTRONIC EQUIPMENT
        RT: AUTOMATION
        RT: BATCH PROCESSING
        RT: COMPUTER PROGRAMS

    CONCESSIONS
        Notes: Use only for rights to exploit or explore for mineral resources
        BT: LICENCES
        RT: MINERAL EXPLORATION
        RT: MINING LEGISLATION
        RT: OIL AND GAS EXPLORATION

    CONCHOLOGY
        Notes: The branch of Zoology dealing with shells of animals (molluscs, brachiopods,etc.). Added in 1980
        BT: ZOOLOGY
        RT: MALACOLOGY
        RT: SHELLS

    CONCRETE
        BT: CONSTRUCTION MATERIALS
        NT: PRESTRESSED CONCRETE
        NT: REINFORCED CONCRETE
        RT: CONCRETE STRUCTURES

    CONCRETE STRUCTURES
        Notes: Before 1986 search also CONCRETE PLATFORMS
        RT: COAST DEFENCES
        RT: CONCRETE
        RT: OFFSHORE STRUCTURES

    CONCRETIONS
        Notes: Use only for mineral deposits formed within sediments
        BT: CHEMICAL SEDIMENTS
        RT: CHERTS
        RT: FLINT
        RT: NODULES

    CONDENSATION
        BT: PHASE CHANGES
        RT: DEW POINT
        RT: EVAPORATION
        RT: HEAT TRANSFER

    CONDITION FACTOR
        BT: POPULATION FACTORS
        RT: BODY CONDITIONS
        RT: GROWTH
        RT: LENGTH-WEIGHT RELATIONSHIPS

    CONDUCTIVITY RATIO
        RT: ELECTRICAL CONDUCTIVITY

    CONDUCTIVITY SENSORS
        RT: CTD PROFILERS
        RT: ELECTRICAL CONDUCTIVITY
        RT: MEASURING DEVICES

    CONFERENCES
        Notes: Use only to index the monographic entry for bound proceedings, and general reports on meetings; do not use for individual (analytic) conference papers
        RT: ABSTRACTS
        RT: EXHIBITIONS
        RT: INTERNATIONAL ORGANIZATIONS

    CONGLOMERATES
        RT: BRECCIA
        RT: CALCRETE
        RT: KIMBERLITES

    CONIDIA
        Notes: Asexually formed spores produced by fungi
        RT: ASEXUAL REPRODUCTION
        RT: FUNGI
        RT: SPORES

    CONNECTING
        RT: PIPELINE CONSTRUCTION

    CONNECTIVE TISSUES
        Notes: Added in 1980
        BT: TISSUES
        NT: CARTILAGE
        RT: BLOOD
        RT: BLOOD VESSELS
        RT: BONES

    CONNECTORS
        RT: ELECTRIC CABLES
        RT: MANIFOLDS

    CONSERVATION
        Notes: Conservation of nature and resources. Use of a more specific term is recommended
        NT: NATURE CONSERVATION
        NT: RESOURCE CONSERVATION
        NT: SOIL CONSERVATION
        NT: WATER CONSERVATION
        RT: CONTROL
        RT: DEPLETION
        RT: ECONOMICS

    CONSERVATION EQUATIONS
        BT: EQUATIONS
        RT: DIFFUSION
        RT: EQUATION OF CONTINUITY

    CONSERVATION OF ANGULAR MOMENTUM
        BT: CONSERVATION PRINCIPLES
        RT: ANGULAR MOMENTUM
        RT: CONSERVATION OF VORTICITY

    CONSERVATION OF ENERGY
        BT: CONSERVATION PRINCIPLES
        RT: ENERGY

    CONSERVATION OF HEAT
        BT: CONSERVATION PRINCIPLES
        RT: HEAT
        RT: HEAT TRANSPORT

    CONSERVATION OF MASS
        BT: CONSERVATION PRINCIPLES
        RT: EQUATION OF CONTINUITY
        RT: MASS

    CONSERVATION OF MOMENTUM
        BT: CONSERVATION PRINCIPLES
        RT: MOMENTUM

    CONSERVATION OF SALT
        BT: CONSERVATION PRINCIPLES
        RT: DISSOLVED SALTS
        RT: SALT ADVECTION
        RT: SALT BUDGET

    CONSERVATION OF VORTICITY
        BT: CONSERVATION PRINCIPLES
        RT: ABSOLUTE VORTICITY
        RT: BAROTROPIC MODE
        RT: CONSERVATION OF ANGULAR MOMENTUM

    ABCDEFGHIJKLMNOPQRSTUVWXYZ


    CONSERVATION PRINCIPLES
        NT: CONSERVATION OF ANGULAR MOMENTUM
        NT: CONSERVATION OF ENERGY
        NT: CONSERVATION OF HEAT
        NT: CONSERVATION OF MASS
        NT: CONSERVATION OF MOMENTUM
        NT: CONSERVATION OF SALT
        NT: CONSERVATION OF VORTICITY

    CONSERVATIVE PROPERTIES
        BT: PROPERTIES
        RT: ENTHALPY
        RT: NON-CONSERVATIVE PROPERTIES
        RT: SALINITY

    CONSOLIDATION
        BT: DIAGENESIS
        RT: CEMENTATION
        RT: COMPACTION
        RT: LITHIFICATION

    CONSTANTS
        Notes: Used only as a qualifier
        NT: STABILITY CONSTANTS
        RT: ASSOCIATION CONSTANTS
        RT: COEFFICIENTS
        RT: ELASTIC CONSTANTS

    CONSTRUCTION
        NT: INSTALLATION
        NT: PIPELINE CONSTRUCTION
        RT: CONSTRUCTION MATERIALS
        RT: EXCAVATION UNDERWATER
        RT: LAUNCHING

    CONSTRUCTION MATERIALS
        BT: MATERIALS
        NT: CONCRETE
        RT: CONSTRUCTION
        RT: FIBRE GLASS

    CONSTRUCTIVE WAVES
        BT: SURFACE WATER WAVES
        RT: DESTRUCTIVE WAVES
        RT: PROGRADATION

    CONSULTANTS
        Notes: Added in 1980
        BT: PERSONNEL
        RT: DIRECTORIES
        RT: EXPERTS
        RT: SCIENTIFIC PERSONNEL

    CONSUMERS
        RT: ECONOMIC ANALYSIS
        RT: MARKET RESEARCH
        RT: MARKETING

    CONTAINER SHIPS
        BT: MERCHANT SHIPS
        RT: FERRY TERMINALS

    CONTAINERS
        Notes: Added in 1980
        NT: TANKS

    CONTAINMENT
        BT: POLLUTION CONTROL
        RT: BARRAGES
        RT: BARRIERS
        RT: BUBBLE BARRIERS

    CONTIGUOUS ZONES
        Notes: Offshore area claimed by a nation for exclusive fishing rights. Added in 1980
        BT: OCEAN SPACE
        RT: BOUNDARIES
        RT: EXCLUSIVE ECONOMIC ZONE
        RT: FISHERY BOUNDARIES

    CONTINENTAL BORDERLAND
        BT: SUBMARINE FEATURES
        RT: CONTINENTAL CRUST
        RT: CONTINENTAL MARGINS
        RT: CONTINENTAL SHELVES

    CONTINENTAL CRUST
        BT: EARTH CRUST
        RT: CONTINENTAL BORDERLAND
        RT: CONTINENTS
        RT: CRATONS

    CONTINENTAL DRIFT
        RT: BIOGEOGRAPHY
        RT: CONTINENTS
        RT: DRIFT

    CONTINENTAL MARGINS
        BT: SUBMARINE FEATURES
        NT: ACTIVE MARGINS
        NT: PASSIVE MARGINS
        RT: CONTINENTAL BORDERLAND
        RT: CONTINENTAL RISE
        RT: CONTINENTAL SHELVES

    CONTINENTAL RIDGES
        BT: SUBMARINE FEATURES
        RT: RELIEF FORMS
        RT: RIDGES

    CONTINENTAL RISE
        BT: SUBMARINE FEATURES
        RT: ABYSSAL PLAINS
        RT: CONTINENTAL MARGINS
        RT: CONTINENTAL SLOPE

    CONTINENTAL SHELVES
        Notes: Before 1982 search also CONTINENTAL SHELF
        BT: SUBMARINE FEATURES
        NT: OUTER CONTINENTAL SHELF
        RT: CONTINENTAL BORDERLAND
        RT: CONTINENTAL MARGINS
        RT: CONTINENTAL SLOPE

    CONTINENTAL SLOPE
        BT: SUBMARINE FEATURES
        RT: CONTINENTAL BORDERLAND
        RT: CONTINENTAL MARGINS
        RT: CONTINENTAL RISE

    CONTINENTS
        BT: LANDFORMS
        RT: CONTINENTAL BORDERLAND
        RT: CONTINENTAL CRUST
        RT: CONTINENTAL DRIFT

    CONTINUOUS CULTURE
        Notes: Added in 1980
        BT: AQUACULTURE SYSTEMS
        RT: AQUARIA
        RT: BATCH CULTURE
        RT: CULTURE TANKS

    CONTOUR CURRENTS
        BT: SURFACE CURRENTS
        RT: BED FORMS
        RT: BOTTOM EROSION
        RT: CONTINENTAL RISE

    CONTOURITES
        BT: CLASTICS
        RT: CONTOUR CURRENTS

    CONTOURS
        BT: ISOPLETHS
        NT: ISOBATHS
        RT: DEPTH
        RT: PROFILES
        RT: SHAPE

    CONTRACTORS
        BT: PERSONNEL
        RT: CONTRACTS

    CONTRACTS
        RT: CONTRACTORS

    CONTROL
        Notes: Used only as a qualifier. Use of a more specific term is recommended
        NT: BIOLOGICAL CONTROL
        NT: BLOWOUT CONTROL
        NT: CHEMICAL CONTROL
        NT: CORROSION CONTROL
        NT: DEPTH CONTROL
        NT: DISEASE CONTROL
        NT: EROSION CONTROL
        NT: FLOOD CONTROL
        NT: FOULING CONTROL
        NT: PARASITE CONTROL
        NT: PEST CONTROL
        NT: PLANT CONTROL
        NT: POLLUTION CONTROL
        NT: POPULATION CONTROL
        NT: PREDATOR CONTROL
        NT: QUALITY CONTROL
        NT: REMOTE CONTROL
        NT: WATER QUALITY CONTROL
        RT: AUTOMATION
        RT: CONSERVATION
        RT: DAMPING

    CONTROL CHARTS
        BT: MAPS
        RT: COMMERCIAL LEGISLATION
        RT: CRITICAL PATH METHOD
        RT: QUALITY CONTROL

    CONTROL RESISTANCE
        Notes: Added in 1980
        BT: BIOLOGICAL RESISTANCE
        RT: ANTIBIOTICS
        RT: CHEMICAL CONTROL
        RT: DRUG RESISTANCE

    CONTROLLED CONDITIONS
        Notes: Used only as a qualifier
        RT: ARTIFICIAL FEEDING
        RT: BEHAVIOURAL RESPONSES
        RT: DOMESTICATION

    CONVECTION
        BT: ADVECTION
        NT: ATMOSPHERIC CONVECTION
        NT: CELLULAR CONVECTION
        NT: FORCED CONVECTION
        NT: MANTLE CONVECTION
        NT: OCEANIC CONVECTION
        RT: HEAT TRANSFER
        RT: HEAT TRANSPORT
        RT: MASS TRANSFER

    CONVERGENCE
        RT: ATMOSPHERIC CONVERGENCES
        RT: CONVERGENCE ZONES
        RT: DIVERGENCE

    CONVERGENCE ZONES
        NT: ATMOSPHERIC CONVERGENCES
        NT: OCEANIC CONVERGENCES
        RT: ADVECTION
        RT: CONVERGENCE
        RT: DIVERGENCE ZONES

    CONVERGING PLATE BOUNDARIES
        BT: PLATE BOUNDARIES
        RT: ISLAND ARCS
        RT: SUBDUCTION ZONES
        RT: TRENCHES (OCEANIC)

    CONVERSION FACTORS
        Notes: Added in 1982
        RT: ANIMAL METABOLISM
        RT: BIOENERGETICS
        RT: CONVERSION TABLES

    CONVERSION TABLES
        BT: TABLES
        NT: KNUDSEN TABLES
        RT: CONVERSION FACTORS
        RT: NUMERICAL ANALYSIS
        RT: OCEANOGRAPHIC TABLES

    CONVOLUTION
        BT: MATHEMATICAL ANALYSIS
        RT: CROSS CORRELATION
        RT: DECONVOLUTION
        RT: SEISMIC DATA PROCESSING

    COOLING
        BT: HEAT TRANSFER
        RT: COOLING PONDS
        RT: COOLING SYSTEMS
        RT: COOLING WATER

    COOLING PONDS
        BT: PONDS
        RT: COOLING
        RT: FOSSIL FUELED POWER PLANTS
        RT: NUCLEAR POWER PLANTS

    COOLING SYSTEMS
        RT: COOLING
        RT: OPEN SYSTEMS

    COOLING WATER
        BT: WATER
        RT: COOLING
        RT: ENTRAINMENT
        RT: FOSSIL FUELED POWER PLANTS

    COOPERATIVES
        BT: FISHERY ORGANIZATIONS
        RT: CAPTURE FISHERY ECONOMICS
        RT: FINANCING
        RT: FISHERMEN

    COORDINATE SYSTEMS
        NT: GEODETIC COORDINATES
        NT: GEOGRAPHICAL COORDINATES

    COPPER
        BT: CHEMICAL ELEMENTS
        RT: COPPER COMPOUNDS
        RT: COPPER ISOTOPES
        RT: FERROMANGANESE NODULES

    COPPER COMPOUNDS
        RT: CHEMICAL COMPOUNDS
        RT: COPPER

    COPPER ISOTOPES
        BT: ISOTOPES
        RT: COPPER

    COPRECIPITATION
        BT: CHEMICAL PRECIPITATION
        RT: FLOCCULATION

    CORAL
        Notes: Before 1982 search also CORALS
        BT: ANIMAL PRODUCTS
        RT: ATOLLS
        RT: CALCIUM COMPOUNDS
        RT: CORAL FARMING

    CORAL FARMING
        Notes: Added in 1980
        BT: AQUACULTURE
        RT: CORAL
        RT: CORAL REEFS
        RT: CULTURES

    CORAL REEFS
        BT: BIOGENIC DEPOSITS
        NT: BARRIER REEFS
        NT: FRINGING REEFS
        RT: ATOLLS
        RT: BIOGENIC SEDIMENTARY STRUCTURES
        RT: BIOHERMS

    CORANGE CHARTS
        BT: TIDAL CHARTS
        RT: CORANGE LINES
        RT: TIDAL AMPLITUDE
        RT: TIDAL RANGE

    CORANGE LINES
        BT: ISOPLETHS
        RT: CORANGE CHARTS
        RT: TIDAL AMPLITUDE
        RT: TIDAL RANGE

    CORE ANALYSIS
        BT: SEDIMENT ANALYSIS
        RT: ANALYSIS
        RT: CORE HANDLING
        RT: CORES

    CORE HANDLING
        RT: CORE ANALYSIS
        RT: CORE RECOVERY
        RT: CORES

    CORE LAYER METHOD
        RT: ANALYSIS
        RT: CORE LAYERS (WATER)
        RT: HYDROGRAPHY

    CORE LAYERS (WATER)
        BT: LAYERS
        NT: OXYGEN MAXIMUM LAYER
        NT: OXYGEN MINIMUM LAYER
        NT: SALINITY MAXIMUM LAYER
        NT: SALINITY MINIMUM LAYER
        NT: TEMPERATURE MAXIMUM LAYER
        NT: TEMPERATURE MINIMUM LAYER
        RT: CORE LAYER METHOD
        RT: HYDROGRAPHY
        RT: T/S DIAGRAMS

    CORE ORIENTATION
        BT: ORIENTATION
        RT: CORES
        RT: REMANENT MAGNETIZATION

    CORE RECOVERY
        BT: RECOVERY
        RT: CORE HANDLING
        RT: CORES
        RT: CORING

    CORERS
        Notes: Before 1982 search CORING DEVICES
        BT: SEDIMENT SAMPLERS
        NT: FREE-FALL CORERS
        NT: GRAVITY CORERS
        NT: PISTON CORERS
        NT: VIBRATORY CORERS
        RT: CORES
        RT: CORING
        RT: DRILLING EQUIPMENT

    CORES
        BT: SEDIMENT SAMPLES
        RT: BOREHOLES
        RT: CORE ANALYSIS
        RT: CORE HANDLING

    CORING
        Notes: Bottom sampling and core studies
        BT: SEDIMENT SAMPLING
        RT: CORE HANDLING
        RT: CORE RECOVERY
        RT: CORERS

    CORIOLIS ACCELERATION
        BT: ACCELERATION
        RT: CORIOLIS FORCE
        RT: CORIOLIS PARAMETERS

    CORIOLIS FORCE
        BT: FORCES (MECHANICS)
        RT: ACCELERATION
        RT: ATMOSPHERIC CIRCULATION
        RT: CORIOLIS ACCELERATION

    CORIOLIS PARAMETERS
        RT: ABSOLUTE VORTICITY
        RT: BETA SPIRALS
        RT: BETA-PLANE

    CORRECTIONS
        Notes: Used only as a qualifier
        NT: GRAVITY CORRECTIONS
        RT: ERRORS
        RT: REVERSING THERMOMETERS

    CORRELATION
        Notes: Used only as a qualifier
        RT: CORRELATION ANALYSIS
        RT: STRATIGRAPHIC CORRELATION

    CORRELATION ANALYSIS
        Notes: Used only as a qualifier
        BT: STATISTICAL ANALYSIS
        NT: AUTOCORRELATION
        NT: CROSS CORRELATION
        RT: CORRELATION
        RT: NUMERICAL TAXONOMY
        RT: REGRESSION ANALYSIS

    CORROSION
        BT: CHEMICAL REACTIONS
        NT: CRACKING (CORROSION)
        NT: STRESS CORROSION
        RT: ANTIOXIDANTS
        RT: CAVITATION
        RT: CHEMICAL DEGRADATION

    CORROSION CONTROL
        BT: CONTROL
        NT: CATHODIC PROTECTION
        RT: ANTIOXIDANTS
        RT: COATING PROCESSES
        RT: CORROSION

    COSINE COLLECTORS
        BT: LIGHT MEASURING INSTRUMENTS
        RT: IRRADIANCE

    COSINE RESPONSE
        Notes: Used only as a qualifier
        BT: INSTRUMENT RESPONSES
        RT: FLOWMETERS
        RT: LIGHT MEASURING INSTRUMENTS

    COSMIC DUST
        BT: EXTRATERRESTRIAL MATERIAL
        RT: EOLIAN DUST
        RT: SEDIMENTS

    COSMIC RADIATION
        BT: IONIZING RADIATION

    COSMIC SPHERULES
        BT: EXTRATERRESTRIAL MATERIAL
        RT: MAGNETITE

    COSMOPOLITE SPECIES
        BT: SPECIES
        RT: BIOGEOGRAPHY
        RT: BIPOLAR DISTRIBUTION
        RT: GEOGRAPHICAL DISTRIBUTION

    COST ANALYSIS
        Notes: Study of costs related to technical and financial operations in aquaculture, commercial fishing, fishing industry, marketing, trade, etc.
        RT: ANALYSIS
        RT: AQUACULTURE
        RT: AQUACULTURE ECONOMICS

    COSTS
        Notes: Added in 1980
        NT: LABOUR COSTS
        NT: OPERATIONAL COSTS
        RT: ACQUISITION
        RT: COST ANALYSIS
        RT: ECONOMIC FEASIBILITY

    COTIDAL CHARTS
        BT: TIDAL CHARTS
        RT: COTIDAL LINES
        RT: TIDAL PREDICTION
        RT: TIDAL PROPAGATION

    COTIDAL LINES
        BT: ISOPLETHS
        RT: AMPHIDROMIC SYSTEMS
        RT: COTIDAL CHARTS
        RT: HIGH WATER

    COUETTE FLOW
        BT: LAMINAR FLOW
        RT: SHEAR STRESS

    ABCDEFGHIJKLMNOPQRSTUVWXYZ


    COUNTERCURRENTS
        BT: WATER CURRENTS
        NT: COASTAL COUNTERCURRENTS
        NT: EQUATORIAL COUNTERCURRENTS

    COUNTERS
        Notes: Automatic devices for biological and physical counting
        NT: BACTERIAL COUNTERS
        NT: CELL COUNTERS
        NT: EGG COUNTERS
        NT: FISH COUNTERS
        NT: GEIGER COUNTERS
        NT: PARTICLE COUNTERS

    COUNTRIES
        NT: COASTAL STATES
        NT: DEVELOPED COUNTRIES
        NT: DEVELOPING COUNTRIES
        NT: LANDLOCKED STATES
        RT: GOVERNMENTS
        RT: INTERNATIONAL AGREEMENTS
        RT: INTERNATIONAL COOPERATION

    COUPLED BODIES
        RT: HYDRODYNAMICS

    COURTSHIP
        BT: REPRODUCTIVE BEHAVIOUR
        RT: DISPLAY BEHAVIOUR
        RT: SEXUAL REPRODUCTION

    CRAB CULTURE
        Notes: Before 1982 search CRUSTACEAN CULTURE
        BT: CRUSTACEAN CULTURE
        RT: COASTAL LAGOONS
        RT: POLYCULTURE
        RT: POND CULTURE

    CRAB FISHERIES
        Notes: Added in 1982
        BT: CRUSTACEAN FISHERIES
        RT: COASTAL FISHERIES
        RT: MARINE FISHERIES
        RT: TRAP FISHING

    CRACK PROPAGATION
        RT: DETERIORATION

    CRACKING (CORROSION)
        BT: CORROSION
        RT: EMBRITTLEMENT

    CRACKS
        BT: DEFECTS
        RT: FRACTURES
        RT: LAMELLAR TEARING

    CRANE BARGES
        BT: BARGES
        RT: CRANES
        RT: SUPPORT SHIPS

    CRANES
        BT: LIFTING TACKLE
        RT: CRANE BARGES
        RT: PONTOONS

    CRATONS
        RT: CONTINENTAL CRUST
        RT: CONTINENTAL MARGINS
        RT: CONTINENTS

    CRAYFISH CULTURE
        Notes: Before 1982 search CRUSTACEAN CULTURE
        BT: CRUSTACEAN CULTURE
        RT: POND CULTURE
        RT: RICE FIELD AQUACULTURE
        RT: STOCKING (ORGANISMS)

    CREEP
        RT: DEFORMATION
        RT: LANDSLIDES
        RT: MASS MOVEMENT

    CRETACEOUS
        Notes: Before 1982 search CRETACEOUS PERIOD
        BT: MESOZOIC
        RT: MASS EXTINCTIONS

    CREW
        BT: PERSONNEL

    CRISTOBALITE
        BT: OXIDE MINERALS
        RT: SILICA

    CRITICAL FLOW
        BT: FLUID FLOW

    CRITICAL PATH METHOD
        BT: OPERATIONS RESEARCH
        RT: CONTROL CHARTS
        RT: NUMERICAL ANALYSIS
        RT: PERT

    CROSS CORRELATION
        BT: CORRELATION ANALYSIS
        RT: AUTOCORRELATION
        RT: CONVOLUTION

    CRUDE OIL
        BT: PETROLEUM
        RT: NATURAL GAS
        RT: OIL
        RT: OIL PRODUCTION

    CRUISE PROGRAMMES
        RT: CRUISES
        RT: MULTISHIP EXPEDITIONS
        RT: PLANNING

    CRUISE REPORTS
        Notes: Preliminary report on results obtained during a cruise by one research vessel
        BT: REPORT LITERATURE
        RT: CRUISES
        RT: EXPEDITION REPORTS
        RT: TRACK CHARTS

    CRUISE STATIONS
        BT: OCEANOGRAPHIC STATIONS
        RT: CRUISES
        RT: EXPEDITIONS
        RT: MULTISHIP EXPEDITIONS

    CRUISES
        Notes: Use only for surveys involving one vessel
        BT: EXPEDITIONS
        RT: CRUISE PROGRAMMES
        RT: CRUISE REPORTS
        RT: CRUISE STATIONS

    CRUSTACEAN CULTURE
        BT: SHELLFISH CULTURE
        NT: BRINE SHRIMP CULTURE
        NT: CRAB CULTURE
        NT: CRAYFISH CULTURE
        NT: LOBSTER CULTURE
        NT: PRAWN CULTURE
        NT: SHRIMP CULTURE
        RT: BATCH CULTURE
        RT: BRACKISHWATER AQUACULTURE
        RT: CAGE CULTURE

    CRUSTACEAN FISHERIES
        Notes: Added in 1982
        BT: FISHERIES
        NT: CRAB FISHERIES
        NT: KRILL FISHERIES
        NT: LOBSTER FISHERIES
        NT: SHRIMP FISHERIES
        NT: SQUAT LOBSTER FISHERIES
        RT: COASTAL FISHERIES
        RT: DEMERSAL FISHERIES
        RT: MARINE FISHERIES

    CRUSTACEAN LARVAE
        Notes: Added in 1980
        BT: INVERTEBRATE LARVAE
        NT: MEGALOPS
        NT: NAUPLII
        NT: PHYLLOSOMAE
        NT: ZOEAE
        RT: CRUSTACEAN CULTURE
        RT: MEROPLANKTON

    CRUSTAL ACCRETION
        BT: ACCRETION
        RT: DIVERGING PLATE BOUNDARIES
        RT: OCEANIC CRUST
        RT: PLATE DIVERGENCE

    CRUSTAL ADJUSTMENT
        BT: TECTONICS
        NT: ISOSTASY
        RT: EPEIROGENY
        RT: PLATE TECTONICS

    CRUSTAL SHORTENING
        BT: DIASTROPHISM
        RT: EARTH CRUST
        RT: EPEIROGENY

    CRUSTAL STRUCTURE
        RT: CONTINENTAL CRUST
        RT: EARTH CRUST
        RT: OCEANIC CRUST

    CRUSTAL THICKNESS
        BT: THICKNESS
        RT: CONTINENTAL CRUST
        RT: EARTH CRUST
        RT: OCEANIC CRUST

    CRYOBIOLOGY
        Notes: Low temperature biology. Added in 1980
        BT: BIOLOGY
        RT: COLD RESISTANCE
        RT: CRYOPLANKTON
        RT: PHYSIOLOGY

    CRYOPLANKTON
        Notes: Ice- and snow-inhabiting organisms. Added in 1980
        BT: PLANKTON
        RT: CRYOBIOLOGY
        RT: ICE
        RT: POLAR ZONES

    CRYOSPHERE
        BT: HYDROSPHERE
        RT: EUSTATIC CHANGES
        RT: GLACIERS
        RT: ICE

    CTD OBSERVATIONS
        BT: HYDROGRAPHIC DATA
        RT: CTD PROFILERS
        RT: FINESTRUCTURE
        RT: STD OBSERVATIONS

    CTD PROFILERS
        Notes: Conductivity-temperature-depth profilers
        BT: PROFILERS
        RT: CONDUCTIVITY SENSORS
        RT: CTD OBSERVATIONS
        RT: ELECTRICAL CONDUCTIVITY

    CULLING
        Notes: Removal or killing of a certain number of animals to maintain a steady population. Added in 1982
        RT: AQUATIC MAMMALS
        RT: FISHERY MANAGEMENT

    CULTCH
        Notes: Any substrata placed in the environment to attract the attachment of oyster larvae. Added in 1980
        BT: ARTIFICIAL SUBSTRATA
        RT: LARVAL SETTLEMENT
        RT: OYSTER CULTURE
        RT: SPAT

    CULTURE EFFECTS
        Notes: Effects of aquaculture practice on the ecosystem. Added in 1980
        RT: AQUACULTURE ENTERPRISES
        RT: BIOLOGICAL POLLUTANTS
        RT: EUTROPHICATION

    CULTURE MEDIA
        Notes: Fluid, solid and nutritive media for culture of tissue and organisms
        RT: AGAR
        RT: BACTERIA
        RT: CELL CULTURE

    CULTURE TANKS
        BT: TANKS
        RT: ALGAL CULTURE
        RT: AQUACULTURE
        RT: AQUACULTURE EQUIPMENT

    CULTURED ORGANISMS
        BT: AQUATIC ORGANISMS
        RT: AQUACULTURE
        RT: AQUACULTURE PRODUCTS
        RT: BALANCED DIETS

    CULTURES
        Notes: Use of a more specific term is recommended; consult terms listed below
        RT: BAIT CULTURE
        RT: BATCH CULTURE
        RT: BOTTOM CULTURE

    CURED PRODUCTS
        BT: PROCESSED FISHERY PRODUCTS
        RT: CURING
        RT: DRIED PRODUCTS

    CURING
        Notes: To preserve by salting, drying, smoking, fermentation or a combination of these methods
        BT: PROCESSING FISHERY PRODUCTS
        RT: CURED PRODUCTS
        RT: DRESSING
        RT: DRYING

    CURIUM
        BT: CHEMICAL ELEMENTS
        RT: ACTINIDES
        RT: CURIUM COMPOUNDS
        RT: CURIUM ISOTOPES

    CURIUM COMPOUNDS
        BT: ACTINIDE COMPOUNDS
        RT: CHEMICAL COMPOUNDS
        RT: CURIUM

    CURIUM ISOTOPES
        BT: ISOTOPES
        RT: CURIUM

    CURL (VECTORS)
        BT: VECTORS
        NT: WIND STRESS CURL
        RT: VORTICITY

    CURRENT CHARTS
        BT: HYDROGRAPHIC CHARTS
        RT: CURRENT DIRECTION
        RT: CURRENT ROSES
        RT: CURRENT VECTORS

    CURRENT DATA
        Notes: Data collections obtained by any method of current measurement
        BT: HYDROGRAPHIC DATA
        RT: CURRENT DATA ANALYSIS
        RT: CURRENT DIRECTION
        RT: CURRENT MEASUREMENT

    CURRENT DENSITY
        BT: DENSITY
        RT: ELECTRIC CURRENTS

    CURRENT DIRECTION
        RT: CURRENT CHARTS
        RT: CURRENT DATA
        RT: CURRENT ROSES

    CURRENT ELLIPSES
        BT: HODOGRAPHS
        RT: ROTARY CURRENTS

    CURRENT FORCES
        BT: LOADS (FORCES)
        RT: CURRENT VELOCITY
        RT: HYDRODYNAMICS
        RT: VORTEX SHEDDING

    CURRENT MARKS
        BT: BEDDING STRUCTURES
        NT: FLUTE CASTS
        NT: SCOUR MARKS
        NT: SOLE MARKS

    CURRENT MEANDERING
        BT: MEANDERING
        RT: CURRENT RINGS
        RT: FLUID MOTION
        RT: MESOSCALE EDDIES

    CURRENT MEASUREMENT
        Notes: Methods for measuring speed and direction of water currents
        BT: FLOW MEASUREMENT
        NT: EULERIAN CURRENT MEASUREMENT
        NT: LAGRANGIAN CURRENT MEASUREMENT
        RT: CURRENT DATA
        RT: CURRENT MEASURING EQUIPMENT
        RT: CURRENT METERS

    CURRENT MEASURING EQUIPMENT
        BT: FLOW MEASURING EQUIPMENT
        NT: CURRENT SENSORS
        NT: DRIFTERS
        NT: JELLY BOTTLES
        RT: CURRENT MEASUREMENT
        RT: CURRENT METERS
        RT: DROGUES

    CURRENT METER ARRAYS
        BT: ARRAYS
        RT: DEPLOYMENT
        RT: FLOWMETERS
        RT: MOORING RECOVERY

    CURRENT METER DATA
        BT: CURRENT OBSERVATIONS
        RT: CURRENT METERS
        RT: EULERIAN CURRENT MEASUREMENT

    CURRENT METER MOORINGS
        BT: MOORING SYSTEMS

    CURRENT METERS
        Notes: Restricted to measurement of water speed and direction
        BT: MEASURING DEVICES
        NT: ACOUSTIC CURRENT METERS
        RT: CURRENT MEASUREMENT
        RT: CURRENT MEASURING EQUIPMENT
        RT: CURRENT METER DATA

    CURRENT OBSERVATIONS
        BT: HYDROGRAPHIC DATA
        NT: CURRENT METER DATA
        RT: CURRENT MEASUREMENT
        RT: CURRENT METERS
        RT: NEAR-SURFACE LAYER

    CURRENT POWER
        Notes: Utilizing the energy of water currents as a source of power
        BT: POWER FROM THE SEA
        RT: OCEAN CURRENTS
        RT: WATER CURRENTS

    CURRENT PREDICTION
        BT: PREDICTION
        RT: WATER CURRENTS

    CURRENT PROFILES
        BT: VELOCITY PROFILES
        RT: VELOCITY GRADIENTS
        RT: VELOCITY PROFILERS
        RT: VELOCITY SECTIONS

    CURRENT REVERSAL
        RT: MONSOON REVERSAL
        RT: WATER CURRENTS

    CURRENT RINGS
        Notes: Oceanic eddies of order 10 kms diameter
        BT: OCEANIC EDDIES
        RT: CURRENT MEANDERING
        RT: OCEAN CURRENTS
        RT: VORTICES

    CURRENT ROSES
        BT: MAP GRAPHICS
        RT: CURRENT CHARTS
        RT: CURRENT DIRECTION
        RT: CURRENT VELOCITY

    CURRENT SCOURING
        BT: SCOURING
        RT: ARTIFICIAL SEAWEED
        RT: BED FORMS
        RT: BOTTOM CURRENTS

    CURRENT SENSORS
        BT: CURRENT MEASURING EQUIPMENT
        RT: ACOUSTIC CURRENT METERS
        RT: DOPPLER EFFECT
        RT: FLOWMETERS

    CURRENT SHEAR
        BT: SHEAR
        RT: SHEAR PROBES
        RT: WIND SHEAR

    CURRENT SPECTRA
        BT: SPECTRA

    CURRENT VECTORS
        BT: VECTORS
        RT: CURRENT CHARTS
        RT: CURRENT VELOCITY
        RT: STREAMLINES

    CURRENT VELOCITY
        BT: VELOCITY
        NT: STREAM FLOW RATE
        RT: CURRENT CHARTS
        RT: CURRENT DATA
        RT: CURRENT FORCES

    CURRICULA
        Notes: Before 1982 search also EDUCATION
        RT: EDUCATION
        RT: EDUCATION ESTABLISHMENTS
        RT: TRAINING CENTRES

    CUSPATE FORELANDS
        BT: HEADLANDS
        RT: BEACH RIDGES

    CUTICLES
        Notes: A layer covering and secreted by the epidermis of plants and many invertebrates. Added in 1980
        BT: EXOSKELETON
        RT: CHITIN
        RT: MOULTING
        RT: TRANSPIRATION

    CUTTING
        RT: WELDING

    CUTTING UNDERWATER
        RT: WELDING UNDERWATER

    CYANIDES
        RT: CHEMICAL COMPOUNDS
        RT: NITROGEN COMPOUNDS
        RT: SALTS

    ABCDEFGHIJKLMNOPQRSTUVWXYZ


    CYCLES
        Notes: Use of a more specific term is recommended
        NT: BIOCHEMICAL CYCLES
        NT: BIOGEOCHEMICAL CYCLE
        NT: CHEMICAL CYCLES
        NT: GEOCHEMICAL CYCLE
        NT: HYDROLOGIC CYCLE
        NT: LIFE CYCLE
        NT: TIDAL CYCLES
        NT: TROPHODYNAMIC CYCLE
        RT: ENERGY BUDGET
        RT: FOOD CHAINS
        RT: FOOD WEBS

    CYCLESONDE
        BT: PROFILERS
        RT: VELOCITY PROFILERS

    CYCLIC LOADING
        BT: LOADS (FORCES)
        RT: DYNAMIC LOADS
        RT: FATIGUE (MATERIALS)
        RT: GEOTECHNOLOGY

    CYCLOGENESIS
        RT: CYCLONES

    CYCLOMORPHOSIS
        Notes: Seasonal change in morphology displayed by some planktonic animals. Added in 1980
        BT: BIOPOLYMORPHISM
        RT: DEFENCE MECHANISMS
        RT: PREDATION

    CYCLONES
        Notes: Use of a more specific term is recommended
        BT: LOW PRESSURE SYSTEMS
        RT: ANTICYCLONES
        RT: CYCLOGENESIS
        RT: HURRICANES

    CYCLONIC MOTION
        RT: ANTICYCLONIC MOTION
        RT: MOTION
        RT: ROTATION

    CYLINDERS
        RT: CYLINDRICAL STRUCTURES
        RT: TUBING

    CYLINDRICAL STRUCTURES
        Notes: Before 1986 search also CYLINDRICAL BODIES
        RT: CYLINDERS
        RT: FLOW AROUND OBJECTS
        RT: STRUCTURES

    CYSTEINE
        BT: AMINO ACIDS

    CYSTINE
        BT: AMINO ACIDS

    CYSTS
        Notes: Resistant resting stages formed by different organisms, as a response to adverse environmental conditions. Added in 1980
        RT: DEFENCE MECHANISMS
        RT: ENCYSTMENT

    CYTOCHEMISTRY
        Notes: Added in 1982
        BT: BIOCHEMISTRY
        RT: CYTOCHROMES
        RT: CYTOLOGY

    CYTOCHROMES
        Notes: Added in 1980
        BT: COENZYMES
        RT: CYTOCHEMISTRY
        RT: OXIDATION
        RT: PROTEINS

    CYTOLOGY
        BT: BIOLOGY
        NT: KARYOLOGY
        RT: CELL CONSTITUENTS
        RT: CELL DIFFERENTIATION
        RT: CELL DIVISION

    CYTOPLASM
        BT: CELL CONSTITUENTS
        RT: CELL INCLUSIONS
        RT: CYTOLOGY
        RT: GOLGI APPARATUS

    DAILY
        Notes: Descriptor to be used only as a qualifier
        BT: PERIODICITY
        RT: DIURNAL VARIATIONS

    DAMAGE
        Notes: Results of accidents or fires. For biological damage use BIOLOGICAL DAMAGE
        RT: ACCIDENTS
        RT: DEFECTS
        RT: FAILURES

    DAMPING
        Notes: To artificially reduce amplitude or physical processes
        NT: EVAPORATION REDUCTION
        NT: NOISE REDUCTION
        NT: WAVE DAMPING
        RT: ATTENUATION
        RT: CONTROL
        RT: INSULATING MATERIALS

    DAMS
        Notes: Fixed structures for the containment etc. of water in valleys
        BT: BARRAGES
        RT: ARTIFICIAL LAKES
        RT: BACKWATERS
        RT: BARRIERS

    DANGEROUS ORGANISMS
        Notes: Harmful to persons. Added in 1980
        BT: AQUATIC ORGANISMS
        RT: BATHING
        RT: BIOLOGICAL DAMAGE
        RT: DIVING HAZARDS

    DATA
        Notes: Used only as a qualifier. Use of a more specific term is recommended
        NT: BIOLOGICAL DATA
        NT: EXPERIMENTAL DATA
        NT: FISHERY DATA
        NT: GEOPHYSICAL DATA
        NT: GEOTECHNICAL DATA
        NT: HYDROGRAPHIC DATA
        NT: LIMNOLOGICAL DATA
        NT: METEOROLOGICAL DATA
        NT: OCEANOGRAPHIC DATA
        NT: POLLUTION DATA
        NT: WAVE DATA
        RT: ACOUSTIC DATA
        RT: CURRENT DATA
        RT: DATA ACQUISITION

    DATA ACQUISITION
        BT: ACQUISITION
        RT: DATA
        RT: DATA LOGGERS
        RT: DATA PROCESSING

    DATA BUOYS
        BT: BUOYS
        NT: DRIFTING DATA BUOYS
        NT: WAVE BUOYS
        RT: AUTOMATED RECORDING
        RT: DATA
        RT: DATA COLLECTIONS

    DATA CENTRES
        BT: INFORMATION CENTRES
        RT: DATA
        RT: DATA COLLECTIONS
        RT: DATA PROCESSING

    DATA COLLECTIONS
        BT: COLLECTIONS
        RT: CATALOGUES
        RT: CENSUS
        RT: DATA

    DATA CONVERTERS
        Notes: Analog/digital converters
        RT: ANALOG RECORDS
        RT: DIGITAL RECORDS

    DATA LOGGERS
        RT: DATA
        RT: DATA ACQUISITION
        RT: EQUIPMENT

    DATA PROCESSING
        NT: BATCH PROCESSING
        NT: DATA REDUCTION
        NT: DATA RETRIEVAL
        NT: DATA STORAGE
        NT: SEISMIC DATA PROCESSING
        NT: SIGNAL PROCESSING
        RT: ANALYSIS
        RT: AUTOMATION
        RT: COMPUTER PROGRAMS

    DATA REDUCTION
        BT: DATA PROCESSING
        RT: REFERENCE LEVELS
        RT: SEISMIC DATA PROCESSING
        RT: SPECTRAL ANALYSIS

    DATA REPORTS
        BT: REPORT LITERATURE
        NT: STATION LISTS
        RT: CRUISES
        RT: DATA
        RT: INSHORE STATIONS

    DATA RETRIEVAL
        BT: DATA PROCESSING
        RT: COMPUTER PROGRAMS
        RT: COMPUTERS
        RT: DATA

    DATA STORAGE
        BT: DATA PROCESSING
        RT: COMPUTERS
        RT: DATA
        RT: DATA ACQUISITION

    DATA TRANSMISSION
        NT: FACSIMILE TRANSMISSION
        RT: TELEMETRY

    DATUM LEVELS
        BT: REFERENCE LEVELS
        NT: CHART DATUM
        NT: TIDAL DATUM
        RT: BENCH MARKS
        RT: GEODESY
        RT: LEVELLING

    DAVITS
        BT: LIFTING TACKLE
        RT: GEAR HANDLING

    DAYTIME
        Notes: Descriptor to be used only as a qualifier
        RT: DIURNAL VARIATIONS
        RT: NIGHTTIME
        RT: SEA BREEZES

    DDE
        BT: CHLORINATED HYDROCARBONS

    DDT
        BT: CHLORINATED HYDROCARBONS
        RT: AGRICULTURAL POLLUTION
        RT: AGRICULTURAL RUNOFF
        RT: CHEMICAL POLLUTANTS

    DE-ICING
        Notes: Preventing and removing rime and glaze from decks, superstructures, equipment, etc. For melting of ice/snow on land and frozen soil, use ICE MELTING. For thawing of frozen fishery products use THAWING.
        RT: ANTIFREEZES
        RT: ICE PREVENTION
        RT: ICING

    DEAD RECKONING
        BT: NAVIGATION
        RT: INERTIAL NAVIGATION
        RT: SHIP DRIFT

    DEAD WATER
        RT: DENSITY STRATIFICATION
        RT: FJORDS
        RT: FRESH WATER

    DEAMINATION
        BT: CHEMICAL REACTIONS
        RT: AMINATION

    DEBRIS FLOW
        BT: MASS GRAVITY TRANSPORT (SEDIMENTS)
        RT: MELANGES
        RT: OLISTOSTROMES

    DEBUBBLING
        RT: BUBBLES
        RT: BUBBLING

    DECALCIFICATION
        Notes: The process of absorption of lime salts from bones. Added in 1980
        BT: BIOCHEMICAL PHENOMENA
        RT: BONES
        RT: CALCIFICATION
        RT: SHELLS

    DECANTATION
        Notes: Decantation of transported solid pollutants or suspended sediments
        BT: SEPARATION
        RT: DECANTATION TANKS
        RT: SEDIMENTATION
        RT: SLUDGE TREATMENT

    DECANTATION TANKS
        BT: TANKS
        RT: DECANTATION
        RT: SEWAGE PONDS
        RT: WASTE TREATMENT

    DECARBOXYLATION
        BT: CHEMICAL REACTIONS
        RT: CARBOXYLATION

    DECCA
        BT: RADIO NAVIGATION
        RT: NAVIGATIONAL TABLES

    DECHLORINATION
        RT: CHLORINATION
        RT: CHLORINE
        RT: DISINFECTION

    DECK COMPRESSION CHAMBERS
        BT: DECOMPRESSION CHAMBERS
        RT: TRANSFER CHAMBERS

    DECK EQUIPMENT
        BT: EQUIPMENT
        NT: LIFTING TACKLE
        RT: ACCIDENT PREVENTION
        RT: DECKS
        RT: FISHING VESSELS

    DECKS
        NT: HELIDECKS
        RT: DECK EQUIPMENT
        RT: FIXED PLATFORMS
        RT: MOBILE PLATFORMS

    DECOMPOSERS
        Notes: Micro-organisms returning nutrients to water by biodegradation. Added in 1980
        BT: HETEROTROPHIC ORGANISMS
        RT: BACTERIA
        RT: BIODEGRADATION
        RT: FOOD CHAINS

    DECOMPRESSION
        RT: COMPRESSION
        RT: DECOMPRESSION CHAMBERS
        RT: DECOMPRESSION SICKNESS

    DECOMPRESSION CHAMBERS
        BT: DIVING EQUIPMENT
        NT: DECK COMPRESSION CHAMBERS
        NT: TRANSFER CHAMBERS
        RT: DECOMPRESSION
        RT: DECOMPRESSION SICKNESS
        RT: DECOMPRESSION TABLES

    DECOMPRESSION SICKNESS
        Notes: Before 1986 search also BENDS
        BT: HUMAN DISEASES
        RT: DECOMPRESSION
        RT: DECOMPRESSION CHAMBERS
        RT: DECOMPRESSION TABLES

    DECOMPRESSION TABLES
        BT: TABLES
        RT: DECOMPRESSION
        RT: DECOMPRESSION CHAMBERS
        RT: DECOMPRESSION SICKNESS

    DECONVOLUTION
        BT: MATHEMATICAL ANALYSIS
        RT: CONVOLUTION
        RT: SEISMIC DATA PROCESSING

    DEEP CURRENTS
        Notes: Midwater currents in deep ocean
        BT: SUBSURFACE CURRENTS
        RT: BOTTOM CURRENTS
        RT: DEEP WATER
        RT: OCEAN CURRENTS

    DEEP LAYER
        BT: WATER COLUMN
        RT: BENTHIC BOUNDARY LAYER
        RT: BOTTOM MIXED LAYER
        RT: HYPOLIMNION

    DEEP-SEA CHANNELS
        BT: SUBMARINE FEATURES
        RT: LEVEES

    DEEP-SEA DIVING
        BT: DIVING
        RT: BREATHING MIXTURES
        RT: DIVING PHYSIOLOGY
        RT: MIXED GAS

    DEEP-SEA DRILLING
        Notes: Drilling operations beyond the continental shelf
        BT: DRILLING
        RT: DEEP-SEA MINING
        RT: DRILLING VESSELS
        RT: DYNAMIC POSITIONING

    DEEP-SEA FANS
        BT: SUBMARINE FEATURES
        RT: ALLUVIAL FANS
        RT: ARCHIPELAGIC APRONS
        RT: FANS

    DEEP-SEA FISHERIES
        Notes: Added in 1982
        BT: MARINE FISHERIES

    DEEP-SEA FURROWS
        RT: BOTTOM EROSION
        RT: EROSION FEATURES
        RT: TRENCHES (OCEANIC)

    DEEP-SEA MINING
        BT: MINING
        RT: DEEP-SEA DRILLING
        RT: FERROMANGANESE NODULES
        RT: FOSSIL FUELS

    DEEP-SEA TIDE GAUGES
        BT: TIDE GAUGES
        RT: PRESSURE SENSORS

    DEEP WATER
        RT: APHOTIC ZONE
        RT: BATHYMETRY
        RT: DEEP CURRENTS

    DEEP WATER FORMATION
        RT: MISTRAL

    DEEP-WATER MASSES
        BT: WATER MASSES
        RT: BOTTOM WATER

    DEEP-WATER TERMINALS
        BT: TANKER TERMINALS
        RT: OFFSHORE DOCKING

    DEEP-WATER WAVES
        BT: WATER WAVES

    DEFAECATION
        BT: ANIMAL NUTRITION
        RT: FAECAL PELLETS

    DEFECTS
        Notes: Use for faults of construction or results of damage or deterioration
        NT: CRACKS
        NT: FRACTURES
        NT: LAMELLAR TEARING
        NT: SPALLING
        RT: DAMAGE
        RT: DETERIORATION
        RT: FAILURES

    DEFENCE CRAFT
        Notes: Vessels designed for military/security purposes
        BT: VEHICLES
        RT: ARTIFICIAL HARBOURS
        RT: CRUISES
        RT: MILITARY OCEANOGRAPHY

    DEFENCE MECHANISMS
        Notes: Before 1986 search also DEFENSE MECHANISMS
        NT: PHAGOCYTOSIS
        RT: ANTIBODIES
        RT: BIOELECTRICITY
        RT: CAMOUFLAGE

    DEFICIENCY DISEASES
        Notes: Added in 1980
        BT: DISEASES
        RT: ARTIFICIAL FEEDING
        RT: DIETARY DEFICIENCIES
        RT: DIETS

    DEFLECTION
        NT: CATENARY
        RT: INCLINOMETERS
        RT: PLUMBLINE DEFLECTION

    DEFLOCCULATION
        RT: DISPERSION
        RT: FLOCCULATION

    DEFORMATION
        BT: MECHANICAL PROPERTIES
        NT: ROCK DEFORMATION
        NT: STRAIN
        RT: ANELASTICITY
        RT: BOUDINAGE
        RT: BULK MODULUS

    DEGASSING
        RT: DESORPTION
        RT: EARTH ATMOSPHERE
        RT: EARTH MANTLE

    DEGENERATION
        Notes: Added in 1980
        BT: BIOLOGICAL PHENOMENA
        RT: BIODEGRADATION
        RT: EVOLUTION
        RT: MUTATIONS

    DEGLACIATION
        RT: CLIMATIC CHANGES
        RT: EMERGENT SHORELINES
        RT: EUSTATIC CHANGES

    ABCDEFGHIJKLMNOPQRSTUVWXYZ


    DEGRADATION
        BT: CHEMICAL REACTIONS
        NT: BIODEGRADATION
        NT: CHEMICAL DEGRADATION
        NT: PYROLYSIS
        NT: THERMAL DECOMPOSITION
        RT: ANOXIC BASINS
        RT: ANOXIC CONDITIONS
        RT: AUTOLYSIS

    DEHYDRATION
        BT: CHEMICAL REACTIONS
        RT: DESICCATION
        RT: DRYING
        RT: EVAPORATION

    DEHYDROGENASES
        BT: ENZYMES

    DEICING EQUIPMENT
        BT: EQUIPMENT
        RT: ICE PREVENTION
        RT: ICING

    DELTAIC DEPOSITS
        RT: BOTTOMSET BEDS
        RT: FLUVIAL SEDIMENTATION
        RT: FORESET BEDS

    DELTAIC FEATURES
        NT: BOTTOMSET BEDS
        NT: FORESET BEDS
        NT: TOPSET BEDS

    DELTAIC SEDIMENTATION
        RT: BOTTOMSET BEDS
        RT: FORESET BEDS
        RT: SEDIMENTARY ENVIRONMENTS

    DELTAS
        BT: COASTAL LANDFORMS
        RT: ALLUVIAL DEPOSITS
        RT: BRACKISHWATER ENVIRONMENT
        RT: COASTAL EROSION

    DEMERSAL FISHERIES
        BT: FISHERIES
        RT: BOTTOM TRAWLING
        RT: BOTTOM TRAWLS
        RT: CRUSTACEAN FISHERIES

    DEMINERALIZATION
        BT: SEPARATION PROCESSES
        RT: DISTILLATION
        RT: ION EXCHANGE

    DENITRIFICATION
        Notes: Before 1982 search NITROGEN CYCLE
        BT: CHEMICAL REACTIONS
        RT: NITRIFICATION
        RT: NITROGEN CYCLE

    DENSE WATER
        BT: SEA WATER

    DENSITOMETERS
        RT: DENSITY MEASUREMENT
        RT: DENSITY MEASURING EQUIPMENT

    DENSITY
        Notes: Before 1982 search also DENSITY (PHYSICAL)
        BT: PHYSICAL PROPERTIES
        NT: CURRENT DENSITY
        NT: SEDIMENT DENSITY
        NT: WATER DENSITY
        RT: BUOYANCY
        RT: DENSITY MEASUREMENT
        RT: DENSITY MEASURING EQUIPMENT

    DENSITY CHARTS
        Notes: Charts showing distribution of water density
        BT: HYDROGRAPHIC CHARTS
        RT: DENSITY SECTIONS
        RT: ISOPYCNICS
        RT: WATER DENSITY

    DENSITY DEPENDENCE
        Notes: Added in 1980
        RT: BIOLOGICAL PRODUCTION
        RT: BIOTIC FACTORS
        RT: POPULATION DENSITY

    DENSITY FIELD
        RT: FIELDS
        RT: GEOSTROPHIC FLOW
        RT: GEOSTROPHIC METHOD

    DENSITY FLOW
        Notes: Before 1982 search TURBIDITY CURRENTS
        BT: FLUID FLOW
        RT: BOTTOM CURRENTS
        RT: STRATIFIED FLOW
        RT: TURBIDITY CURRENTS

    DENSITY FRONTS
        BT: OCEANIC FRONTS
        RT: ISOPYCNICS
        RT: PYCNOCLINE
        RT: WATER DENSITY

    DENSITY GRADIENTS
        Notes: Used only for density gradients in water
        RT: DENSITY PROFILES
        RT: DENSITY STRATIFICATION
        RT: GRADIENTS

    DENSITY INTERFACES
        BT: INTERFACES
        RT: DENSITY STRATIFICATION
        RT: WATER DENSITY

    DENSITY MEASUREMENT
        BT: MEASUREMENT
        RT: DENSITOMETERS
        RT: DENSITY
        RT: DENSITY MEASURING EQUIPMENT

    DENSITY MEASURING EQUIPMENT
        RT: DENSITOMETERS
        RT: DENSITY
        RT: DENSITY MEASUREMENT

    DENSITY PROFILES
        BT: VERTICAL PROFILES
        RT: DENSITY GRADIENTS
        RT: DENSITY SECTIONS
        RT: DENSITY STRATIFICATION

    DENSITY SECTIONS
        BT: HYDROGRAPHIC SECTIONS
        RT: DENSITY CHARTS
        RT: DENSITY PROFILES
        RT: SIGMA-T

    DENSITY STRATIFICATION
        BT: STRATIFICATION
        RT: BUOYANT JETS
        RT: DEAD WATER
        RT: DENSITY GRADIENTS

    DENUDATION
        Notes: Combined effect of erosional processes and transportation of eroded material.
        RT: EROSION
        RT: EROSION FEATURES

    DEOXYGENATION
        RT: DISSOLVED OXYGEN
        RT: OXYGEN DEMAND
        RT: OXYGEN DEPLETION

    DEPLETED STOCKS
        Notes: A stock (or population) suffering from recruitment overfishing. Added in 1982
        BT: STOCKS
        RT: DEPLETION
        RT: FISHERY MANAGEMENT
        RT: OVERFISHING

    DEPLETION
        NT: RESOURCE DEPLETION
        RT: CONSERVATION
        RT: DEPLETED STOCKS
        RT: NATURAL RESOURCES

    DEPLOYMENT
        Notes: Deployment of materials and equipment including underwater vehicles
        RT: CURRENT METER ARRAYS
        RT: DIVING
        RT: GEAR HANDLING

    DEPOLYMERIZATION
        BT: CHEMICAL REACTIONS
        NT: SILTING

    DEPOSITION FEATURES
        RT: ALLUVIAL FANS
        RT: BARRIER ISLANDS
        RT: BEACH ACCRETION

    DEPRESSORS
        NT: CABLE DEPRESSORS
        RT: DEPTH CONTROL

    DEPTH
        BT: DIMENSIONS
        NT: MIXED LAYER DEPTH
        NT: SILL DEPTH
        NT: STANDARD DEPTHS
        NT: WATER DEPTH
        RT: CONTOURS
        RT: DEPTH MEASUREMENT
        RT: HEIGHT

    DEPTH CONTROL
        BT: CONTROL
        RT: DEPRESSORS

    DEPTH MEASUREMENT
        Notes: Measurement of depth in water only. Use of a more specific term is recommended
        BT: MEASUREMENT
        NT: BATHYMETRY
        NT: INSTRUMENT DEPTH MEASUREMENT
        RT: AIRBORNE SENSING
        RT: BATHYMETRIC CHARTS
        RT: DEPTH

    DEPTH RECORDERS
        Notes: Added in 1982
        BT: RECORDING EQUIPMENT
        RT: BATHYTHERMOGRAPHS
        RT: DEPTH MEASUREMENT
        RT: ELECTRONIC EQUIPMENT

    DERIVED LIPIDS
        Notes: Added in 1980
        BT: LIPIDS
        RT: CAROTENOIDS

    DESALINATION
        Notes: Sea water conversion and water desalting
        BT: WATER TREATMENT
        RT: COASTAL LAGOONS
        RT: DESALINATION PLANTS
        RT: DISSOLVED SALTS

    DESALINATION PLANTS
        RT: AQUACULTURE FACILITIES
        RT: COASTAL LAGOONS
        RT: DESALINATION

    DESERTS
        RT: ARID ENVIRONMENTS
        RT: SABKHAS

    DESICCATION
        Notes: Added in 1980
        BT: SEPARATION
        RT: DEHYDRATION
        RT: DRYING
        RT: EVAPORATION

    DESIGN
        Notes: Limit to design methods. Used only as a qualifier
        BT: ENGINEERING
        NT: SHIP DESIGN
        NT: TOWED BODY DESIGN
        RT: AQUACULTURE EQUIPMENT
        RT: CAGES
        RT: ENGINEERING DRAWINGS

    DESIGN WAVE
        RT: COASTAL STRUCTURES
        RT: OFFSHORE STRUCTURES
        RT: SURFACE WATER WAVES

    DESORPTION
        BT: SORPTION
        RT: DEGASSING
        RT: SURFACE PROPERTIES

    DESTRATIFICATION
        RT: STRATIFICATION
        RT: WATER MIXING

    DESTRUCTIVE WAVES
        RT: CONSTRUCTIVE WAVES
        RT: NEARSHORE BARS

    DETECTION
        Notes: Used only as a qualifier
        NT: DISEASE DETECTION
        NT: FISH DETECTION
        NT: ICEBERG DETECTION
        NT: POLLUTION DETECTION
        NT: WRECK LOCATION
        RT: ACOUSTIC TRACKING SYSTEMS
        RT: ALARM SYSTEMS
        RT: ECHO RANGING

    DETECTORS
        RT: ALARM SYSTEMS

    DETERGENTS
        NT: SOAPS
        RT: CHEMICAL POLLUTANTS
        RT: CHEMICAL POLLUTION
        RT: DOMESTIC WASTES

    DETERIORATION
        Notes: Gradual decline in quality (of materials). For results of fire and accidents use DAMAGE
        RT: BRITTLENESS
        RT: CORROSION
        RT: CRACK PROPAGATION

    DETONATORS
        RT: BLASTING
        RT: EXPLOSIVES

    DETOXIFICATION
        Notes: Removal of poison or poison effects
        RT: BIOLOGICAL POISONS
        RT: DISEASES
        RT: HYDROLYSIS

    DETRITAL DEPOSITS
        RT: CLASTICS
        RT: DETRITUS
        RT: SEDIMENTS

    DETRITUS
        RT: BIOGENIC MATERIAL
        RT: BIOGEOCHEMICAL CYCLE
        RT: DETRITAL DEPOSITS

    DETRITUS FEEDERS
        BT: HETEROTROPHIC ORGANISMS
        RT: DETRITUS
        RT: FEEDING BEHAVIOUR
        RT: OMNIVORES

    DEUTERIUM
        Notes: Before 1982 search HYDROGEN ISOTOPES
        BT: HYDROGEN ISOTOPES
        RT: DEUTERIUM COMPOUNDS

    DEUTERIUM COMPOUNDS
        BT: HYDROGEN COMPOUNDS
        RT: DEUTERIUM
        RT: HEAVY WATER

    DEVELOPED COUNTRIES
        BT: COUNTRIES
        RT: DEVELOPING COUNTRIES
        RT: TECHNOLOGY TRANSFER

    DEVELOPING COUNTRIES
        BT: COUNTRIES
        RT: DEVELOPED COUNTRIES
        RT: EDUCATION
        RT: GOVERNMENTS

    DEVELOPMENT POTENTIAL
        Notes: Added in 1980
        RT: DEVELOPMENT PROJECTS
        RT: FINANCIAL RESOURCES
        RT: HUMAN RESOURCES

    DEVELOPMENT PROJECTS
        Notes: Added in 1980
        RT: AQUACULTURE DEVELOPMENT
        RT: DEVELOPMENT POTENTIAL
        RT: FISHERY DEVELOPMENT

    DEVELOPMENTAL STAGES
        NT: EMBRYOS
        NT: JUVENILES
        NT: LARVAE
        NT: RESTING STAGES
        RT: ADULTS
        RT: BIOLOGICAL DEVELOPMENT
        RT: EGGS

    DEVITRIFICATION
        RT: GLASS
        RT: VOLCANIC GLASS

    DEVONIAN
        Notes: Before 1982 search DEVONIAN PERIOD
        BT: PALAEOZOIC

    DEW POINT
        BT: TRANSITION TEMPERATURES
        RT: CONDENSATION
        RT: FOG
        RT: HUMIDITY

    DEWATERING
        RT: DRYING
        RT: PORE WATER
        RT: SEDIMENTS

    DIAGENESIS
        BT: SEDIMENTATION
        NT: AUTHIGENESIS
        NT: CALCITIZATION
        NT: CEMENTATION
        NT: COMPACTION
        NT: CONSOLIDATION
        NT: DOLOMITIZATION
        NT: LITHIFICATION
        RT: BIOTURBATION
        RT: CALCIFICATION
        RT: CATAGENESIS

    DIALYSIS
        BT: SEPARATION PROCESSES
        NT: ELECTRODIALYSIS
        RT: COLLOIDS
        RT: OSMOSIS

    DIAMONDS
        BT: PLACERS
        RT: CARBON
        RT: GRAPHITE
        RT: KIMBERLITES

    DIAPAUSE
        Notes: The state of suspended development
        RT: ANIMAL PHYSIOLOGY
        RT: AQUATIC INSECTS
        RT: GROWTH

    DIAPIRISM
        BT: ROCK DEFORMATION
        RT: DIAPIRS
        RT: IGNEOUS INTRUSIONS
        RT: SALT DOMES

    DIAPIRS
        RT: CAP ROCKS
        RT: DIAPIRISM
        RT: SALT DOMES

    DIASTROPHISM
        NT: CRUSTAL SHORTENING

    DIATOM OOZE
        BT: SILICEOUS OOZE
        RT: DIATOMITES
        RT: FOSSIL DIATOMS

    DIATOMITES
        BT: SILICEOUS ROCKS
        RT: DIATOM OOZE
        RT: SEDIMENTARY ROCKS

    DIATOMS
        Notes: Used as descriptor for ASFA-2 only; for ASFA-1, use taxonomic descriptor BACILLARIOPHYCEAE
        BT: ALGAE

    DICOTHERMAL LAYER
        BT: TEMPERATURE INVERSIONS
        RT: DISCONTINUITY LAYERS
        RT: LAYERS
        RT: THERMAL STRUCTURE

    DIELDRIN
        BT: CHLORINATED HYDROCARBONS
        RT: INSECTICIDES

    DIELECTRIC CONSTANT
        BT: ELECTRICAL PROPERTIES
        RT: CAPACITANCE
        RT: ICE PROPERTIES

    DIESEL ENGINES
        BT: MOTORS
        RT: FUELS
        RT: PROPULSION SYSTEMS
        RT: SHIPBOARD EQUIPMENT

    DIETARY DEFICIENCIES
        Notes: Added in 1980
        NT: NUTRIENT DEFICIENCY
        NT: VITAMIN DEFICIENCIES
        RT: AQUACULTURE
        RT: ARTIFICIAL FEEDING
        RT: DEFICIENCY DISEASES

    DIETS
        NT: BALANCED DIETS
        NT: BASIC DIETS
        RT: ANIMAL NUTRITION
        RT: ARTIFICIAL FEEDING
        RT: DEFICIENCY DISEASES

    DIFFERENTIAL DISTRIBUTION
        Notes: Restricted to areal distribution of the life history stages of aquatic organisms. Used only as a qualifier
        BT: GEOGRAPHICAL DISTRIBUTION
        RT: LIFE CYCLE

    DIFFERENTIAL EQUATIONS
        Notes: Including integral equations. Used only as a qualifier
        RT: EIGENFUNCTIONS
        RT: EQUATIONS
        RT: FINITE ELEMENT METHOD

    DIFFRACTION
        Notes: Use of a more specific term is recommended
        NT: LIGHT DIFFRACTION
        NT: SEISMIC DIFFRACTION
        NT: SOUND DIFFRACTION
        NT: WAVE DIFFRACTION
        RT: WAVE MOTION
        RT: X-RAY DIFFRACTION ANALYSIS

    DIFFUSION
        BT: TRANSPORT PROCESSES
        NT: ATMOSPHERIC DIFFUSION
        NT: MOLECULAR DIFFUSION
        NT: THERMAL DIFFUSION
        NT: TURBULENT DIFFUSION
        RT: ADSORPTION
        RT: CHEMICAL PROPERTIES
        RT: CONSERVATION EQUATIONS

    DIFFUSION COEFFICIENTS
        BT: EXCHANGE COEFFICIENTS
        RT: EDDY DIFFUSIVITY

    DIGESTIBILITY
        Notes: Added in 1980
        BT: ORGANOLEPTIC PROPERTIES
        RT: ARTIFICIAL FEEDING
        RT: DIETS
        RT: DIGESTION

    DIGESTION
        BT: ANIMAL NUTRITION
        RT: AMOEBOCYTES
        RT: ANIMAL METABOLISM
        RT: DIGESTIBILITY

    DIGESTIVE GLANDS
        BT: GLANDS
        NT: HEPATOPANCREAS
        NT: LIVER
        NT: PANCREAS
        RT: ALIMENTARY ORGANS
        RT: DIGESTION
        RT: DIGESTIVE SYSTEM

    DIGESTIVE SYSTEM
        RT: ABDOMEN
        RT: ALIMENTARY ORGANS
        RT: DIGESTION

    DIGESTIVE TRACT
        BT: ALIMENTARY ORGANS

    ABCDEFGHIJKLMNOPQRSTUVWXYZ


    DIGITAL RECORDS
        BT: DOCUMENTS
        RT: ANALOG RECORDS
        RT: DATA CONVERTERS
        RT: RECORDS

    DILUTION
        Notes: Used only as a qualifier
        RT: FATE
        RT: LIQUIDS
        RT: SALINITY

    DIMENSIONLESS NUMBERS
        NT: MIXING RATIO
        RT: FROUDE NUMBER
        RT: PRANDTL NUMBER
        RT: RATIOS

    DIMENSIONS
        Notes: Used only as a qualifier
        NT: AMPLITUDE
        NT: AREA
        NT: CAPACITY
        NT: DEPTH
        NT: HEIGHT
        NT: LENGTH
        NT: SIZE
        NT: THICKNESS
        NT: VOLUME
        NT: WIDTH
        RT: GRAIN SIZE
        RT: MORPHOMETRY
        RT: SHAPE

    DIRECTION
        Notes: Used only as a qualifier
        NT: WAVE DIRECTION
        NT: WIND DIRECTION
        RT: AZIMUTH
        RT: DIRECTION FINDING
        RT: DIRECTION INDICATORS

    DIRECTION FINDING
        RT: DIRECTION
        RT: NAVIGATION

    DIRECTION INDICATORS
        RT: COMPASSES
        RT: DIRECTION
        RT: MEASURING DEVICES

    DIRECTIONAL SPECTRA
        BT: SPECTRA
        RT: DIRECTION
        RT: ENERGY SPECTRA
        RT: INTERNAL WAVES

    DIRECTORIES
        BT: DOCUMENTS
        RT: ALGOLOGISTS
        RT: ANIMAL PHYSIOLOGISTS
        RT: AQUACULTURISTS

    DISASTERS
        RT: ACCIDENTS
        RT: DROUGHTS
        RT: EARTHQUAKES

    DISCOLOURATION
        RT: CHROMATIC PIGMENTS
        RT: COLOUR
        RT: DEGRADATION

    DISCOLOURED WATER
        Notes: Before 1982 search also RED TIDES
        BT: WATER
        RT: EOLIAN DUST
        RT: RED TIDES
        RT: VOLCANIC ASH

    DISCONTINUITY LAYERS
        BT: LAYERS
        NT: HALOCLINE
        NT: LYSOCLINE
        NT: NEPHELOID LAYER
        NT: PYCNOCLINE
        NT: SCATTERING LAYERS
        NT: THERMOCLINE
        RT: CARBONATE COMPENSATION DEPTH
        RT: DICOTHERMAL LAYER
        RT: ENVIRONMENTAL FACTORS

    DISCUS-SHAPED BUOYS
        BT: BUOY HULLS

    DISEASE CONTROL
        BT: CONTROL
        RT: AETIOLOGY
        RT: ANIMAL DISEASES
        RT: ANTIHELMINTHIC AGENTS

    DISEASE DETECTION
        Notes: Added in 1980
        BT: DETECTION
        RT: AETIOLOGY
        RT: DISEASE CONTROL
        RT: DISEASES

    DISEASE RESISTANCE
        Notes: Added in 1980
        BT: BIOLOGICAL RESISTANCE
        RT: DISEASE CONTROL
        RT: DISEASES
        RT: DRUG RESISTANCE

    DISEASE TRANSMISSION
        Notes: Added in 1982
        RT: DISEASES
        RT: INFECTIOUS DISEASES

    DISEASES
        NT: ANIMAL DISEASES
        NT: DEFICIENCY DISEASES
        NT: ENVIRONMENTAL DISEASES
        NT: HAEMATOLOGICAL DISEASES
        NT: HUMAN DISEASES
        NT: HUSBANDRY DISEASES
        NT: INFECTIOUS DISEASES
        NT: METABOLIC DISORDERS
        NT: NUTRITION DISORDERS
        NT: PLANT DISEASES
        NT: TUMOURS
        RT: AETIOLOGY
        RT: ANTIBIOTICS
        RT: CARCINOGENS

    DISINFECTANTS
        Notes: Added in 1980
        RT: CHEMICAL COMPOUNDS
        RT: CHLORINE
        RT: DISINFECTION

    DISINFECTION
        Notes: Added in 1980
        RT: BACTERIAL DISEASES
        RT: CHLORINATION
        RT: DECHLORINATION

    DISPERSANTS
        Notes: Chemicals used to contribute to the break-up of an oil spill at sea
        RT: AGENTS
        RT: ANTICOAGULANTS
        RT: DISPERSION

    DISPERSION
        NT: BIOLOGICAL DRIFT
        NT: DYE DISPERSION
        NT: LIGHT DISPERSION
        NT: LONGITUDINAL DISPERSION
        NT: SOUND DISPERSION
        NT: WAVE DISPERSION
        RT: DEFLOCCULATION
        RT: DISPERSANTS
        RT: EMULSIONS

    DISPHOTIC ZONE
        RT: APHOTIC ZONE
        RT: CARBONATE COMPENSATION DEPTH
        RT: COMPENSATION DEPTH

    DISPLACEMENT
        Notes: Weight of water displaced by vehicle; weight in water
        RT: FLOTATION
        RT: MOTION
        RT: SURFACE CRAFT

    DISPLAY BEHAVIOUR
        Notes: Added in 1980
        BT: BEHAVIOUR
        RT: AGONISTIC BEHAVIOUR
        RT: COURTSHIP

    DISPUTES
        Notes: Added in 1980
        NT: FISHERY DISPUTES
        RT: BOUNDARIES
        RT: INTERNATIONAL LAW
        RT: LEGAL ASPECTS

    DISSOCIATION
        BT: CHEMICAL REACTIONS
        RT: PYROLYSIS

    DISSOLUTION
        BT: SEPARATION PROCESSES
        NT: CALCITE DISSOLUTION
        RT: EXCHANGE CAPACITY
        RT: LEACHING
        RT: SOLUBILITY

    DISSOLVED CHEMICALS
        BT: MINERAL RESOURCES
        RT: BORON
        RT: BROMINE
        RT: CALCIUM

    DISSOLVED GASES
        BT: GASES
        NT: DISSOLVED OXYGEN
        RT: BUBBLE DISEASE
        RT: CHEMICAL COMPOSITION
        RT: SOLUBILITY

    DISSOLVED INORGANIC MATTER
        BT: INORGANIC MATTER

    DISSOLVED ORGANIC CARBON
        BT: ORGANIC CARBON
        RT: CARBON/NITROGEN RATIO
        RT: CARBON/PHOSPHORUS RATIO
        RT: DISSOLVED ORGANIC MATTER

    DISSOLVED ORGANIC MATTER
        Notes: Before 1982 search ORGANIC SUSPENDED MATTER
        BT: ORGANIC MATTER
        RT: DISSOLVED ORGANIC CARBON
        RT: DISSOLVED ORGANIC NITROGEN
        RT: DISSOLVED ORGANIC PHOSPHORUS

    DISSOLVED ORGANIC NITROGEN
        BT: ORGANIC NITROGEN
        RT: CARBON/NITROGEN RATIO
        RT: DISSOLVED ORGANIC MATTER

    DISSOLVED ORGANIC PHOSPHORUS
        BT: ORGANIC PHOSPHORUS
        RT: CARBON/PHOSPHORUS RATIO
        RT: DISSOLVED ORGANIC MATTER

    DISSOLVED OXYGEN
        BT: DISSOLVED GASES
        RT: ABIOTIC FACTORS
        RT: AERATION
        RT: AEROBIC RESPIRATION

    DISSOLVED SALTS
        BT: SALTS
        NT: BRINES
        RT: CHEMICAL COMPOSITION
        RT: CHLORINE COMPOUNDS
        RT: CONSERVATION OF SALT

    DISTANCE
        Notes: Used only as a qualifier

    DISTILLATION
        BT: SEPARATION PROCESSES
        RT: DEMINERALIZATION
        RT: DESALINATION

    DISTILLED WATER
        BT: WATER

    DISTRESS SIGNALS
        BT: ALARM SYSTEMS

    DISTRIBUTARIES
        BT: RIVERS
        RT: DELTAS
        RT: FLUVIAL MORPHOLOGY
        RT: TRIBUTARIES

    DISTRIBUTION
        Notes: Used only as a qualifier. Use of a narrower term is recommended
        NT: ECOLOGICAL DISTRIBUTION
        NT: GAUSSIAN DISTRIBUTION
        NT: GEOGRAPHICAL DISTRIBUTION
        NT: GEOLOGICAL DISTRIBUTION
        NT: NEW RECORDS
        NT: QUANTITATIVE DISTRIBUTION
        NT: SEDIMENT DISTRIBUTION
        NT: TEMPORAL DISTRIBUTION
        RT: DISTRIBUTION RECORDS

    DISTRIBUTION RECORDS
        Notes: Added in 1980
        RT: BIOGEOGRAPHY
        RT: BIOLOGICAL CHARTS
        RT: DISTRIBUTION

    DIURNAL THERMOCLINE
        BT: THERMOCLINE
        RT: DIURNAL VARIATIONS

    DIURNAL TIDES
        BT: TIDES

    DIURNAL VARIATIONS
        BT: PERIODIC VARIATIONS
        RT: CIRCADIAN RHYTHMS
        RT: DAILY
        RT: DAYTIME

    DIVERGENCE
        RT: COASTAL UPWELLING
        RT: CONVERGENCE
        RT: DIVERGENCE ZONES

    DIVERGENCE ZONES
        NT: OCEANIC DIVERGENCES
        RT: CONVERGENCE ZONES
        RT: DIVERGENCE
        RT: UPWELLING

    DIVERGING PLATE BOUNDARIES
        BT: PLATE BOUNDARIES
        RT: CRUSTAL ACCRETION
        RT: MANTLE PLUMES
        RT: MID-OCEAN RIDGES

    DIVERS
        BT: EXPERTS
        RT: DIRECTORIES
        RT: DIVING INDUSTRY
        RT: SPEECH DISTORTION

    DIVING
        NT: DEEP-SEA DIVING
        NT: SATURATION DIVING
        NT: SCUBA DIVING
        RT: AQUATIC MAMMALS
        RT: ARTIFICIAL AERATION
        RT: CETOLOGY

    DIVING ACCIDENTS
        BT: ACCIDENTS
        RT: DIVING
        RT: DIVING HAZARDS
        RT: DIVING REGULATIONS

    DIVING BELLS
        BT: MANNED VEHICLES
        RT: DECOMPRESSION CHAMBERS
        RT: DIVING
        RT: ONE-ATMOSPHERE SYSTEMS

    DIVING EQUIPMENT
        BT: EQUIPMENT
        NT: DECOMPRESSION CHAMBERS
        NT: DIVING SUITS
        NT: DIVING TOOLS
        RT: BREATHING APPARATUS
        RT: BREATHING MIXTURES
        RT: COMMUNICATION SYSTEMS

    DIVING HAZARDS
        BT: HAZARDS
        NT: SHARK ATTACKS
        RT: CARBON MONOXIDE
        RT: DANGEROUS ORGANISMS
        RT: DIVING

    DIVING INDUSTRY
        BT: INDUSTRIES
        RT: DIVERS
        RT: DIVING EQUIPMENT
        RT: OFFSHORE ENGINEERING

    DIVING PHYSIOLOGY
        Notes: All physiological and medical aspects of diving in man, mammals, and other animals, including experimental laboratory studies
        BT: PHYSIOLOGY
        RT: ANIMAL PHYSIOLOGY
        RT: AQUATIC MAMMALS
        RT: BONE NECROSIS

    DIVING REGULATIONS
        BT: SAFETY REGULATIONS
        RT: ACCIDENT PREVENTION
        RT: DIVING
        RT: DIVING ACCIDENTS

    DIVING SUITS
        Notes: Use for one-man equipment with articulated limbs
        BT: DIVING EQUIPMENT
        RT: LIFE SUPPORT SYSTEMS
        RT: MANIPULATORS
        RT: ONE-ATMOSPHERE SYSTEMS

    DIVING SURVEYS
        BT: SURVEYS
        RT: SURVEYING UNDERWATER
        RT: UNDERWATER EXPLORATION
        RT: WORKING UNDERWATER

    DIVING TOOLS
        Notes: Pertains to tools operated by divers
        BT: DIVING EQUIPMENT
        RT: UNDERWATER EQUIPMENT
        RT: WORKING UNDERWATER

    DNA
        Notes: Before 1982 search DEOXYRIBONUCLEIC ACID
        BT: NUCLEIC ACIDS
        RT: CHEMICAL COMPOUNDS
        RT: CHEMOTAXONOMY
        RT: GENES

    DOCUMENTATION
        NT: INFORMATION HANDLING
        NT: INFORMATION RETRIEVAL
        RT: BIBLIOGRAPHIC INFORMATION
        RT: BIBLIOGRAPHIES
        RT: BIOGRAPHIES

    DOCUMENTS
        Notes: Before 1982 search also PUBLICATIONS
        NT: ABSTRACTS
        NT: ARCHIVES
        NT: ATLASES
        NT: AUDIOVISUAL MATERIAL
        NT: BIBLIOGRAPHIES
        NT: BIOGRAPHIES
        NT: BROCHURES
        NT: CATALOGUES
        NT: COLLECTED PAPERS
        NT: DIGITAL RECORDS
        NT: DIRECTORIES
        NT: ENCYCLOPAEDIAS
        NT: EXPEDITION REPORTS
        NT: GAZETEERS
        NT: GLOSSARIES
        NT: ILLUSTRATIONS
        NT: LOGBOOKS
        NT: MANUALS
        NT: PATENTS
        NT: PUBLICITY MATERIAL
        NT: REPORT LITERATURE
        NT: SAILING DIRECTIONS
        NT: SYNOPSIS
        NT: TABLES
        NT: THESAURUS
        NT: TRANSLATIONS
        RT: BIBLIOGRAPHIC INFORMATION
        RT: DOCUMENTATION
        RT: INFORMATION HANDLING

    DODECANE
        BT: ACYCLIC HYDROCARBONS

    DOLOMITE
        Notes: Use only for mineral dolomite
        BT: CARBONATE MINERALS
        RT: DOLOSTONE
        RT: EVAPORITES

    DOLOMITIZATION
        BT: DIAGENESIS
        RT: CALCITIZATION
        RT: CALCIUM CARBONATES
        RT: DOLOSTONE

    DOLOSTONE
        BT: CARBONATE ROCKS
        RT: DOLOMITE
        RT: DOLOMITIZATION
        RT: SEDIMENTARY ROCKS

    ABCDEFGHIJKLMNOPQRSTUVWXYZ


    DOMES
        BT: ANTICLINES
        RT: SALT DOMES
        RT: STRUCTURAL DOMES

    DOMESTIC SPECIES
        Notes: Species kept by man from the wild. Added in 1980
        BT: SPECIES
        RT: CULTURED ORGANISMS
        RT: DOMESTICATION
        RT: INTRODUCED SPECIES

    DOMESTIC WASTES
        BT: WASTES
        RT: DETERGENTS
        RT: INDUSTRIAL WASTES
        RT: ORGANIC WASTES

    DOMESTICATION
        Notes: Added in 1980
        RT: CAPTIVITY
        RT: CONTROLLED CONDITIONS
        RT: DOMESTIC SPECIES

    DOMINANCE HIERARCHIES
        Notes: Before 1982 search SOCIAL BEHAVIOUR
        BT: SOCIAL BEHAVIOUR
        NT: PECKING ORDER
        RT: COMPETITION
        RT: STOCKING DENSITY
        RT: TERRITORIALITY

    DOMINANT SPECIES
        BT: SPECIES
        RT: CATCH COMPOSITION
        RT: CLIMAX COMMUNITY
        RT: COMMUNITY COMPOSITION

    DOPPLER EFFECT
        RT: CURRENT METERS
        RT: CURRENT SENSORS
        RT: DOPPLER NAVIGATION

    DOPPLER NAVIGATION
        BT: NAVIGATION
        RT: DOPPLER EFFECT

    DOPPLER SONAR
        BT: ACTIVE SONAR
        RT: ACOUSTIC EQUIPMENT
        RT: ACOUSTIC NAVIGATION
        RT: DOPPLER EFFECT

    DORMANCY
        RT: AESTIVATION
        RT: HIBERNATION
        RT: METABOLISM

    DOUBLE DIFFUSION
        BT: MOLECULAR DIFFUSION
        RT: DOUBLE DIFFUSIVE INSTABILITY
        RT: HEAT
        RT: MICROSTRUCTURE

    DOUBLE DIFFUSIVE INSTABILITY
        BT: INSTABILITY
        RT: DOUBLE DIFFUSION
        RT: TRANS-ISOPYCNAL MIXING

    DOWNWARD IRRADIANCE
        BT: IRRADIANCE

    DOWNWARD LONG WAVE RADIATION
        BT: TERRESTRIAL RADIATION
        RT: EXTRATERRESTRIAL RADIATION

    DOWNWELLING
        BT: VERTICAL WATER MOVEMENT
        RT: CONVERGENCE
        RT: MIXING PROCESSES
        RT: OCEANIC CONVERGENCES

    DRAG
        NT: FORM DRAG
        RT: AIR-WATER EXCHANGES
        RT: BOTTOM FRICTION
        RT: BOTTOM STRESS

    DRAG COEFFICIENT
        RT: BED ROUGHNESS
        RT: DRAG
        RT: KINETIC ENERGY

    DRAINAGE WATER
        Notes: Drainage water of artificial or natural origin
        BT: WATER
        NT: RUNOFF
        RT: HYDROLOGY
        RT: SEWAGE
        RT: URBANIZATION

    DREDGE SPOIL
        BT: WASTES
        RT: DREDGERS
        RT: DREDGING
        RT: SPOIL

    DREDGED SAMPLES
        BT: SEDIMENT SAMPLES
        RT: DREDGES (GEOLOGY)

    DREDGERS
        BT: SURFACE CRAFT
        RT: CHANNELS
        RT: DREDGE SPOIL
        RT: DREDGES

    DREDGES
        Notes: Refers to fishing dredges only. For sediment dredges use DREDGES (GEOLOGY)
        BT: FISHING GEAR
        RT: BOATS
        RT: COASTAL FISHERIES
        RT: DEMERSAL FISHERIES

    DREDGES (GEOLOGY)
        BT: SEDIMENT SAMPLERS
        RT: DREDGED SAMPLES
        RT: SEAFLOOR SAMPLING

    DREDGING
        RT: AGGREGATES
        RT: CANALS
        RT: CHANNELS

    DRESSING
        Notes: To remove scales, head and tail from fish. Added in 1982
        BT: FISH HANDLING
        NT: GUTTING
        RT: CURING
        RT: PROCESSED FISHERY PRODUCTS

    DRIED PRODUCTS
        Notes: Added in 1980
        BT: PROCESSED FISHERY PRODUCTS
        RT: CURED PRODUCTS
        RT: DRYING
        RT: FREEZE-DRYING

    DRIFT
        NT: ICE DRIFT
        NT: SHIP DRIFT
        RT: ANCHORING
        RT: CONTINENTAL DRIFT
        RT: DRIFTERS

    DRIFT BOTTLES
        Notes: Before 1982 search DRIFTERS
        BT: SURFACE DRIFTERS
        RT: CURRENT MEASUREMENT
        RT: DRIFT CARDS

    DRIFT CARDS
        Notes: Before 1982 search DRIFTERS
        BT: SURFACE DRIFTERS
        RT: CURRENT MEASUREMENT
        RT: DRIFT BOTTLES

    DRIFTERS
        BT: CURRENT MEASURING EQUIPMENT
        NT: SUBSURFACE DRIFTERS
        NT: SURFACE DRIFTERS
        RT: CURRENT MEASUREMENT
        RT: DRIFT
        RT: LAGRANGIAN CURRENT MEASUREMENT

    DRIFTING DATA BUOYS
        Notes: Before 1985 search also DRIFT BUOYS
        BT: DATA BUOYS
        RT: DRIFTING STATIONS
        RT: SURFACE DRIFTERS

    DRIFTING STATIONS
        BT: OCEANOGRAPHIC STATIONS
        RT: DRIFTING DATA BUOYS
        RT: ICE ISLANDS

    DRILL PIPE
        RT: DRILL STRING
        RT: DRILLING EQUIPMENT
        RT: DRILLING FLUIDS

    DRILL STRING
        RT: DRILL PIPE
        RT: DRILLING EQUIPMENT
        RT: DRILLS

    DRILLING
        Notes: Before 1986 search also OFFSHORE DRILLING
        NT: DEEP-SEA DRILLING
        RT: BOREHOLES
        RT: CORES
        RT: CORING

    DRILLING EQUIPMENT
        Notes: Before 1982 search DRILLING DEVICES
        BT: EQUIPMENT
        NT: DRILLING RIGS
        RT: CORERS
        RT: DRILL PIPE
        RT: DRILL STRING

    DRILLING FLUIDS
        RT: DRILL PIPE
        RT: DRILLING EQUIPMENT
        RT: FLUIDS

    DRILLING PLATFORMS
        Notes: Use with type of offshore structures
        BT: WORK PLATFORMS
        RT: DRILLING
        RT: DRILLING EQUIPMENT
        RT: DRILLING RIGS

    DRILLING RIGS
        BT: DRILLING EQUIPMENT
        RT: DRILL PIPE
        RT: DRILLING PLATFORMS
        RT: PRODUCTION PLATFORMS

    DRILLING VESSELS
        BT: SURFACE CRAFT
        RT: DEEP-SEA DRILLING
        RT: DRILLING PLATFORMS
        RT: POSITIONING SYSTEMS

    DRILLS
        BT: SEDIMENT SAMPLERS
        RT: DRILL PIPE
        RT: DRILL STRING

    DROGUES
        BT: SURFACE DRIFTERS
        RT: ANCHORS
        RT: BUOYS
        RT: CURRENT MEASURING EQUIPMENT

    DROPLETS
        BT: HYDROMETEORS
        RT: BUBBLE BURSTING
        RT: CAPILLARITY
        RT: SPRAY

    DROPSONDE
        BT: PROFILERS
        RT: VELOCITY PROFILERS

    DROUGHT RESISTANCE
        Notes: Added in 1980
        BT: BIOLOGICAL RESISTANCE
        RT: DROUGHTS
        RT: ECOPHYSIOLOGY
        RT: ENVIRONMENTAL EFFECTS

    DROUGHTS
        Notes: Added in 1980
        BT: HAZARDS
        RT: ARID ENVIRONMENTS
        RT: CLIMATOLOGY
        RT: DISASTERS

    DROWNED VALLEYS
        BT: COASTAL INLETS
        RT: COASTAL LANDFORMS
        RT: FJORDS
        RT: RELIEF FORMS

    DROWNING
        RT: ACCIDENTS
        RT: BATHING
        RT: DIVING ACCIDENTS

    DRUG RESISTANCE
        Notes: Added in 1982
        BT: BIOLOGICAL RESISTANCE
        RT: CONTROL RESISTANCE
        RT: DISEASE RESISTANCE
        RT: DRUGS

    DRUGS
        NT: ANAESTHETICS
        NT: ANTIBIOTICS
        NT: AQUATIC DRUGS
        NT: NARCOTICS
        NT: VACCINES
        RT: AGENTS
        RT: ALKALOIDS
        RT: ANAESTHESIA

    DRY
        Notes: Used only as a qualifier
        RT: WET

    DRY SEASON
        BT: SEASONS
        RT: DROUGHTS
        RT: RAINY SEASON
        RT: TROPICAL ENVIRONMENT

    DRY WEIGHT
        BT: WEIGHT
        RT: DRYING
        RT: SPECIFIC GRAVITY
        RT: WET WEIGHT

    DRYING
        BT: PROCESSING FISHERY PRODUCTS
        NT: FREEZE-DRYING
        RT: ADSORPTION
        RT: CURING
        RT: DEHYDRATION

    DUNE STABILIZATION
        RT: BEACH EROSION
        RT: COASTAL ZONE MANAGEMENT
        RT: DUNES

    DUNES
        BT: BEACH FEATURES
        RT: BEACHES
        RT: BED FORMS
        RT: COASTS

    DURATION
        RT: WATER WAVE PARAMETERS
        RT: WIND WAVE GENERATION
        RT: WIND WAVE PARAMETERS

    DUST
        RT: AEROSOLS
        RT: AIR POLLUTION
        RT: ATMOSPHERIC CHEMISTRY

    DUST CLOUDS
        RT: ATMOSPHERIC CHEMISTRY
        RT: CLIMATE
        RT: CLIMATIC CHANGES

    DYE DISPERSION
        BT: DISPERSION
        RT: DYES
        RT: OCEANIC TURBULENCE
        RT: RHODAMINE B-DYE

    DYES
        BT: TRACERS
        NT: RHODAMINE B-DYE
        RT: DYE DISPERSION
        RT: PIGMENTS
        RT: STAINING

    DYNAMIC ANALYSIS
        RT: ANALYSIS

    DYNAMIC HEIGHT
        BT: POTENTIAL ENERGY
        RT: DYNAMIC HEIGHT ANOMALY
        RT: DYNAMIC TOPOGRAPHY
        RT: HEIGHT

    DYNAMIC HEIGHT ANOMALY
        BT: ANOMALIES
        RT: DYNAMIC HEIGHT
        RT: ISOBARIC SURFACES
        RT: SPECIFIC VOLUME ANOMALIES

    DYNAMIC LOADS
        BT: LOADS (FORCES)
        RT: CYCLIC LOADING
        RT: STRUCTURAL DYNAMICS

    DYNAMIC POSITIONING
        BT: POSITIONING SYSTEMS
        RT: ACOUSTIC BEACONS
        RT: ACOUSTIC NAVIGATION
        RT: DEEP-SEA DRILLING

    DYNAMIC RESPONSE
        Notes: Used only as a qualifier
        BT: INSTRUMENT RESPONSES
        NT: HEAVE RESPONSE
        NT: PITCH RESPONSE
        NT: ROLL RESPONSE
        NT: SURGE RESPONSE
        NT: YAW RESPONSE
        RT: FREQUENCY
        RT: HEAVING
        RT: PITCHING

    DYNAMIC TOPOGRAPHY
        BT: TOPOGRAPHY
        RT: DYNAMIC HEIGHT
        RT: GEOSTROPHIC FLOW
        RT: GEOSTROPHIC METHOD

    DYNAMIC VISCOSITY
        BT: VISCOSITY
        RT: EDDY VISCOSITY
        RT: KINEMATIC VISCOSITY
        RT: MOLECULAR VISCOSITY COEFFICIENTS

    DYNAMICAL OCEANOGRAPHY
        BT: OCEANOGRAPHY
        RT: EQUATORIAL DYNAMICS
        RT: ESTUARINE DYNAMICS
        RT: FLUID MECHANICS

    DYNAMICS
        BT: MECHANICS
        NT: CABLE DYNAMICS
        NT: SEDIMENT DYNAMICS
        NT: STRUCTURAL DYNAMICS

    DYSPROSIUM
        BT: CHEMICAL ELEMENTS
        RT: DYSPROSIUM COMPOUNDS
        RT: DYSPROSIUM ISOTOPES
        RT: RARE EARTHS

    DYSPROSIUM COMPOUNDS
        RT: CHEMICAL COMPOUNDS
        RT: DYSPROSIUM

    DYSPROSIUM ISOTOPES
        BT: ISOTOPES
        RT: DYSPROSIUM

    DYSTROPHIC LAKES
        BT: LAKES
        RT: EUTROPHIC LAKES
        RT: HUMIC ACIDS
        RT: OLIGOTROPHIC LAKES

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