Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Measuring the Acute Toxicity of Estuarine Sediments.
Author DeWitt, T. H. ; Swartz, R. C. ; Lanberson, J. O. ;
CORP Author Oregon State Univ., Newport. Hatfield Marine Science Center.;Environmental Research Lab., Narragansett, RI.
Publisher c1989
Year Published 1989
Report Number EPA/600/J-89/260 ; ERLN-N082
Stock Number PB90-196619
Additional Subjects Toxicity ; Sediments ; Estuaries ; Water pollution ; Marine biology ; Graphs(Charts) ; Salinity ; Amphibia ; Reprints ; Fluoranthene
Library Call Number Additional Info Location Last
NTIS  PB90-196619 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/15/1990
Collation 16p
Estuarine sediments frequently are repositories and sources of anthropogenic contaminants. Toxicity is one method of assessing the environmental quality of sediments, yet because of the extreme range of salinities that characterize estuaries few infaunal organisms have both the physiological tolerance and sensitivity to chemical contaminants to serve in estuarine sediment toxicity tests. The study describes research on the estuarine burrowing amphipod, Eohaustorius estuarius Bosworth, 1973, whose survival was >95% in control sediments across a 2 to 28% salinity range over 10-d periods. E. estuarius also was acutely sensitive to low sediment concentrations of the polycyclic aromatic hydrocarbon, fluoranthene (LC50 approximately = 10.6 mg/kg), and its sensitivity to fluoranthene was not affected by salinity. E. estuarius was almost as sensitive as Rhepoxynius abronius to fluoranthene and to field-collected sediments from Puget Sound urban and industrial bays. E. estuarius was also more tolerant of very fine, uncontaminated sediments than R. abronius. Furthermore, E. estuarius was more sensitive to sediments spiked with fluoranthene than the freshwater amphipod, Hyalella azteca. E. estuarius, and possibly other estuarine haustoriid species, appears to be an excellent candidate for testing the acute toxicity if estuarine and marine sediments. (Copyright (c) 1989 SETAC.)