Record Display for the EPA National Library Catalog


Main Title Development and Evaluation of Test Methods for Benthic Invertebrates and Sediments: Effects of Flow Rate and Feeding on Water Quality and Exposure Conditions.
Author Ankley, G. T. ; Benoit, D. A. ; Hoke, R. A. ; Leonard, E. N. ; West., C. W. ;
CORP Author Environmental Research Lab.-Duluth, MN. ;AScI Corp., Duluth, MN.
Publisher 1993
Year Published 1993
Report Number EPA/600/J-94/186;
Stock Number PB94-163656
Additional Subjects Invertebrates ; Sediments ; Toxicity ; Aquatic ecosystems ; Water pollution effects ; Test methods ; Exposure ; Flow rate ; Response ; Feeding(Supplying) ; Water flow ; Survival ; Growth ; Dissolved oxygen ; Concentration(Composition) ; Ammonia ; Metals ; Pesticides ; Bioassay ; Diptera ; Evaluation ; Reprint ; Pore water ; Dieldrin ; Amphiphoda
Library Call Number Additional Info Location Last
NTIS  PB94-163656 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 10p
In order to ensure among-laboratory comparability in the results of sediment toxicity tests, it is necessary to characterize the influence of variations in test regimes on organism responses and exposure conditions. The objective of these studies was to develop and document an optimized combination of overlying water renewal (flow) and feeding rates for sediment tests with three commonly used benthic species (midges, Chironomus tentans; amphipods, Hyalella azteca; oligochaetes, Lumbriculus variegatus). Optimal conditions were defined by a number of chemical and biological consideration. Laboratory toxicity tests with benthic organisms and solid phase sediments are routinely used to assess the potential ecosystem impacts of sediment-associated contaminants. (Copyright (c) 1993 Springer-Verlag New York Inc.)