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RECORD NUMBER: 161 OF 292

Main Title Lake Huron Crustacean and Rotifer Zooplankton, 1980: Factors Affecting Community Structure with an Evaluation of Water Quality Status.
Author Evans, M. S. ;
CORP Author Michigan Univ., Ann Arbor. Great Lakes Research Div.;Environmental Protection Agency, Chicago, IL. Great Lakes National Program Office.
Year Published 1983
Report Number SR-98; EPA-R-005510-01-0 ;EPA-R-005510-02-0;
Stock Number PB85-197812
Additional Subjects Plankton ; Crustacea ; Lake Huron ; Water pollution ; Statistical analysis ; Chemical properties ; Biological productivity ; Seasonal variations ; Standing stock
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Library Call Number Additional Info Location Last
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Status
NTIS  PB85-197812 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 166p
Abstract Zooplankton surveillance cruises were conducted in April, May, June, and July 1980 in Lake Huron, including the North Channel and Georgian Bay. Rotifer standing stocks and species composition were indicative of oligotrophic to meso-oligotrophic conditions. Crustaceans were the numerically dominant zooplankton; this dominance was even larger when expressed in terms of dry weight. Crustacean standing stocks and composition also were indicative of oligotrophic to meso-oligotrophic conditions. Results of statistical analyses (correlation, principal components) provide information on water quality status as estimated from zooplankton population characteristics: such analyses include consideration of the physical-chemical properties of the water column. In addition; a phytoplankton: zooplankton carbon ratio was used to infer relative grazing pressure.
Supplementary Notes Sponsored by Grant EPA-R-005510-03-0. Includes one sheet of 24X reduction microfiche.
NTIS Title Notes Special rept..
PUB Date Free Form Sep 83
Category Codes 6C; 6F; 8H; 68D; 57H; 57C; 48G
NTIS Prices PC E07/MF A01
Primary Description 905/00
Document Type NT
Cataloging Source NTIS/MT
Control Number 519925172
Origin NTIS
Type CAT