Record Display for the EPA National Library Catalog


Main Title Sediment Toxicity, Contamination, and Macrobenthic Communities Near a Large Sewage Outfall.
Author Swartz, R. C. ; Schults, D. W. ; Ditsworth, G. R. ; DeBen, W. A. ; Cole, F. A. ;
CORP Author Corvallis Environmental Research Lab., Newport, OR. Marine Science Center.
Year Published 1985
Report Number EPA/600/D-85/202 ;ERLN-N012;
Stock Number PB86-102142
Additional Subjects Sediments ; Outfall sewers ; Toxicity ; Benthos ; Water pollution ; Bioassay ; Crustacea ; Abundance ; Spatial distribution ; Mathematical models ; Reprints ; Rhepoxynius
Library Call Number Additional Info Location Last
NTIS  PB86-102142 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 27p
Sediment Toxicity, contamination and macrobenthic community structure were examined in 1980 at seven stations along a pollution gradient from the Los Angeles County Sanitation District's sewage outfalls on the Palos Verdes shelf, CA, to control conditions in Santa Monica Bay. Sediment toxicity was determined by laboratory bioassays with the phoxocephalid amphipod, Rhepoxynius abronius. Distribution and abundance of the macrobenthos were generally consistent with the Pearson-Rosenberg model and the Bascom-Mearns-Word quantitative classification of macrobenthic assemblages. Species richness, density, and biomass increased greatly in areas of moderate sediment organic enrichment, but decreased to or below control conditions near the outfalls.