Record Display for the EPA National Library Catalog

RECORD NUMBER: 76 OF 232

OLS Field Name OLS Field Data
Main Title Effects of Zooplankton on Algae in Westhampton Lake.
Author Bisho, John W. ;
CORP Author Virginia Polytechnic Inst. and State Univ., Blacksburg. Water Resources Research Center.
Year Published 1971
Report Number VPI-WRRC-Bull-43; OWRR-A-022-VA; 00150,; A-022-VA(2)
Stock Number PB-203 961
Additional Subjects ( Zooplankton ; Algae) ; ( Algae ; Photosynthesis) ; Carbohydrates ; Chlorophylls ; Lakes ; Rainfall ; Virginia ; Westhampton Lake(Virginia)
Holdings
Library Call Number Additional Info Location Last
Modified
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Status
NTIS  PB-203 961 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/23/1988
Collation 38p
Abstract
Assemblages of algae with different concentrations of zooplankters were kept in cylinders suspended in the lake. Analyses of water and both groups of organisms were conducted inside and outside these aquariums. Rotifers exhibiting no consistent vertical migration decreased the daily photosynthesis of algae by 22%. Vertically migrating copepods and cladocerans exerted no significant effect on the photosynthesis. None of the animal groups influenced the photosynthetic efficiency of algae, their carbohydrate production per unit of chlorophyll. Photosynthesis and photosynthetic efficiency were increased several days after rainfall. (Author)