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Title Seasonal phytoplankton cycles of two saline lakes in central Washington
Creator/Author Walker, K.F.
Publication Date1975 Jan 01
OSTI IdentifierOSTI ID: 5886095
DOE Contract NumberAT(45-1)-2225-T23
Other Number(s)CODEN: LIOCA
Resource TypeJournal Article
Resource RelationLimnol. Oceanogr. ; Vol/Issue: 20:1
Research OrgUniv. of Washington, Seattle
Subject520101 -- Environment, Aquatic-- Basic Studies-- Radiometric Techniques-- (-1989); ;LAKES-- PHYTOPLANKTON;PHYTOPLANKTON-- SEASONAL VARIATIONS; CARBON 14;LIMNOLOGY;NUTRIENTS;OXYGEN;PHOTOSYNTHESIS;POPULATION DENSITY;SODIUM CARBONATES;SURFACE WATERS;TEMPERATURE DEPENDENCE;WASHINGTON;ZOOPLANKTON
Related SubjectALKALI METAL COMPOUNDS;AQUATIC ORGANISMS;BETA DECAY RADIOISOTOPES;BETA-MINUS DECAY RADIOISOTOPES;CARBON COMPOUNDS;CARBON ISOTOPES;CARBONATES;CHEMICAL REACTIONS;CRYOGENIC FLUIDS;ELEMENTS;EVEN-EVEN NUCLEI;FLUIDS;ISOTOPES;LIGHT NUCLEI;NONMETALS;NORTH AMERICA;NUCLEI;OXYGEN COMPOUNDS;PACIFIC NORTHWEST REGION;PHOTOCHEMICAL REACTIONS;PLANKTON;RADIOISOTOPES;SODIUM COMPOUNDS;SURFACE WATERS;SYNTHESIS;USA;VARIATIONS;YEARS LIVING RADIOISOTOPES
Description/Abstract Soap Lake and Lake Lenore occupy adjacent basins in the Lower Grand Coulee, Washington, but show several strong limnological contrasts despite correspondence in rates and trends of heat storage.^Seasonal events in the dynamics of phytoplankton and zooplankton populations generally coincide with different phases in thermal behavior of the lakes.^Both lakes show a dramatic summer decline in phytoplankton population density, with spring and fall periods of more intense activity.^In Soap Lake, which stratifies thermally in summer, a dense algal population is established in the metalimnion.^The summer phytoplankton minima in both lakes coincide with maximum development of zooplankton populations, although there is no conclusive evidence that zooplankton grazing actually limits phytoplankton growth.^The seasonal phytoplankton cycles may be more closely dependent on nutrient depletion in surface waters, and oxygen inhibition of photosynthesis might also be implicated.^Close agreement was evident in /sup 14/C productivity measurements for both lakes, but these may have been affected by oxygen inhibition in light and dark bottles.^Both lakes, however, are highly productive; and productivity estimates are comparable with those obtained for soda lakes elsewhere.
Country of PublicationUnited States
LanguageEnglish
FormatPages: 40-53
System Entry Date2001 May 13

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