Energy Citations Database

Bibliographic Citation

 
Document
For copies of Journal Articles, please contact the Publisher or your local public or university library and refer to the information in the Resource Relation field.
For copies of other documents, please see the Availability, Publisher, Research Organization, Resource Relation and/or Author (affiliation information) fields and/or Document Availability.
Title Development of formulated reference sediments for freshwater and estuarine sediment testing
Creator/Author Suedel, B.C. ; Rodgers, J.H. Jr. (Univ. of Mississippi, University, MS (United States). Dept. of Biology)
Publication Date1994 Jul 01
OSTI IdentifierOSTI ID: 7265465
Other Number(s)ISSN0730-7268; CODEN: ETOCDK
Resource TypeJournal Article
Resource RelationEnvironmental Toxicology and Chemistry ; Vol/Issue: 13:7
Subject540320 -- Environment, Aquatic-- Chemicals Monitoring & Transport-- (1990-) ;560300 -- Chemicals Metabolism & Toxicology; CRUSTACEANS-- SENSITIVITY;FATHEAD MINNOW-- SENSITIVITY;FLIES-- SENSITIVITY;SEDIMENTS-- CONTAMINATION;WATER POLLUTION-- BIOLOGICAL INDICATORS; GENETIC VARIABILITY
Related SubjectANIMALS;AQUATIC ORGANISMS;ARTHROPODS;BIOLOGICAL VARIABILITY;DIPTERA;FISHES;INSECTS;INVERTEBRATES;POLLUTION;VERTEBRATES
Description/Abstract Sediments collected at various field locations may have chemical and physical constituents that influence test results and may contain organisms that cannot be readily removed.^Thus, reference sediments are needed that can be formulated to match diverse freshwater and estuarine sediments encountered in comprehensive testing programs.^This research evaluated formulated reference sediments in terms of (a) their ability to match field-collected sediments both chemically and physically; (b) their suitability as habitant (survival and reproduction) for typical invertebrate toxicity testing species (Hyalella azteca Saussure, Chironomus tentans Fabricius, and Daphnia magna Straus) during chronic exposures; and (c) their suitability as a substrate for Hyalella azteca, Chironomus tentans, Daphnia magna, Ceriodaphnia dubia Richard, and Pimephales promelas Rafinesque in 14-d whole-sediment exposures.^Formulated reference sediments were prepared to match naturally occurring sediments with respect to particle-size distribution, organic matter, organic carbon, pH, solids, CEC, but not redox potential.^After preparation, a conditioning period of at least 7 d was required for pH stabilization of formulated reference sediments.^In culture experiments, formulated reference sediments was suitable for Hyalella azteca, Chironomus tentans, and Daphnia magna survival and reproduction for 56,40, and 28 d, respectively.^Hyalella azteca, Chironomus tentans, Daphnia magna, Ceriodaphnia dubia and Pimephales promelas survival was [>=] 88% in 14-d exposures to formulated reference sediment.^Formulated reference sediments may reduce some unexplained physical, chemical, or biological toxicity`` of field-collected sediments (e.g., organic matter) that may influence toxicity testing results.
Country of PublicationUnited States
LanguageEnglish
FormatPages: 1163-1175
System Entry Date2001 May 13

Top