Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Effects of Culture Conditions on the Sensitivity of a Phoxocephalid Amphipod, 'Rhepoxynius ambronius' to Cadmium in Sediment.
Author Robinson, A. M. ; Lamberson, J. O. ; Cole, F. A. ; Swartz, R. C. ;
CORP Author Environmental Research Lab.-Narragansett, Newport, OR. Mark O. Hatfield Marine Science Center.
Publisher c1988
Year Published 1988
Report Number EPA/600/J-88/439 ;ERLN-N036;
Stock Number PB90-125931
Additional Subjects Cadmium ; Sediments ; Toxicity ; Marine biology ; Growth ; Survival ; Reprints ; Rhepoxynius abronius ; Water pollution effects(Animals) ; LC 50=4.4
Library Call Number Additional Info Location Last
NTIS  PB90-125931 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 03/10/1990
Collation 9p
Experiments were conducted to determine (a) the feasibility of maintaining laboratory cultures of the infaunal phoxocephalid amphipod Rhepoxynius abronius (Barnard), (b) the relative sensitivities of cultured versus freshly collected adult animals, (c) the sensitivities of adult versus juvenile R. abronius to cadmium in sediment and (d) the effect of handling on cultured amphipods. R. abronius held in sediment in a flow-through seawater system for various lengths of time showed high survival, growth and sexual maturation for periods of up to 180 d. Cultured amphipods appeared normal and survived well (93%) under control toxicity test conditions, but were more sensitive to cadmium in sediment (LC50 = 4.4) than were freshly collected amphipods (LC50 = 8.7). Differences in cadmium LC50s between size classes (LC50 = 8.2 for juveniles and 11.5 for adults) were statistically significant, but not substantial. It is recommended that large juveniles and adults (3 to 5 mm) be used in sediment toxicity tests because they are available from natural populations throughout the year, and that amphipods be collected within 14 d of use in sediment toxicity tests to minimize the interaction between culture and contaminant stress. (Copyright (c) 1988 SETAC).