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RECORD NUMBER: 4 OF 6

OLS Field Name OLS Field Data
Main Title Survival and Reproduction of 'Gammarus lacustris and G. pseudolimnaeus' Under Two Experimental Conditions.
Author Halligan, Barbara J. ; Eaton., John G. ;
CORP Author Environmental Research Lab.-Duluth, Minn.
Year Published 1978
Report Number EPA/600/J-78/027;
Stock Number PB-284 756
Additional Subjects Crustacea ; Laboratory animals ; Life cycles ; Survival ; Reproduction(Biology) ; Experimental data ; Toxicology ; Experimental design ; Amphipoda ; Reprints ; Gammarus lacustris ; Gammarus pseudolimnaeus
Holdings
Library Call Number Additional Info Location Last
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Status
NTIS  PB-284 756 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation 5p
Abstract
Life-cycle tests on the survival and reproduction of the amphipods Gammarus lacustris and G. pseudolimnaeus were conducted under two nontoxicant experimental conditions: with several amphipods per tank and with individual pairs per tank. Juvenile and adult survival of the two species was similar with several amphipods per tank, but was higher for G. lacustris among the reproducing individual pairs. In the multiple-animal tanks G. lacustris females had larger broods than did G. pseudolimnaeus females and both species produced more young per female and more broods per female than in the tanks with individual pairs. Our results indicate that these amphipods may be reared more successfully with several animals per tank than with only two. Of the two species, G. lacustris may be preferred for use in chronic toxicity tests because of its greater fecundity, larger size, and wider distribution.