Record Display for the EPA National Library Catalog

RECORD NUMBER: 293 OF 427

Main Title Phytoplankton and Zooplankton in Lakes Erie, Huron and Michigan: 1984. Volume 1. Interpretive Report.
Author Makarewicz, J. C. ;
CORP Author State Univ. of New York Coll. at Brockport. Dept. of Biological Sciences.;Environmental Protection Agency, Chicago, IL. Great Lakes National Program Office.
Year Published 1987
Report Number EPA-R-005772; EPA/905/3-88/001 ; GLPNO-88/03
Stock Number PB88-217062
Additional Subjects Plankton ; Water pollution ; Great Lakes ; Monitoring ; Lake Erie ; Lake Huron ; Lake Michigan ; Phytoplankton ; Zooplankton ; Water chemistry ; Nutrients ; Biomass ; Abundance ; Spatial distribution ; Algae ; Indicator species ; Seasonal variations ; Fishes ; Eutrophication ; Trophic level
Internet Access
Description Access URL
https://nepis.epa.gov/Exe/ZyPDF.cgi?Dockey=200071ZG.PDF
Holdings
Library Call Number Additional Info Location Last
Modified		 Checkout
Status
NTIS  PB88-217062 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 295p
Abstract
During the spring, summer and autumn of 1984 and winter of 1985, the structure of the plankton community in the offshore waters of Lakes Erie, Huron and Michigan was monitored. By examining changes in the phytoplankton and zooplankton in relation to water chemistry, evidence was found suggesting little change in the trophic status of Lake Huron and Michigan while an improvement in the trophic status of Lake Erie was evident over the past several years. The offshore region of Lake Michigan is experiencing changes in phytoplankton and zooplankton composition consistent with nutrient control and top-down control by fish. The appearance and establishment of Daphnia pulicaria in offshore waters of Lake Huron suggest a change in the forage fish base.