Record Display for the EPA National Library Catalog
RECORD NUMBER: 21 OF 113Main Title | Effects of Complex Effluents on Photosynthesis in Lake Erie and Lake Huron. | |||||||||||
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Author | Bridgham, S. D. ; McNaught, D. C. ; Meadows, C. ; | |||||||||||
CORP Author | Duke Univ., Durham, NC. School of Forestry and Environmental Studies. ;Minnesota Univ., Minneapolis. Dept. of Ecology and Behavioral Biology.;Environmental Research Lab.-Duluth, MN. | |||||||||||
Publisher | c1988 | |||||||||||
Year Published | 1988 | |||||||||||
Report Number | EPA-R-810775; EPA/600/D-89/238; | |||||||||||
Stock Number | PB90-134446 | |||||||||||
Additional Subjects | Toxicity ; Phytoplankton ; Food chains ; Lake Huron ; Lake Erie ; Photosynthesis ; Nutrients ; Algae ; Biomass ; Great Lakes ; River Basins ; Reprints ; Chemicals ; Monroe County(Michigan) | |||||||||||
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Collation | 15p | |||||||||||
Abstract | Phytoplankton are the base of the food chain in most large lake ecosystems; if affected by environmental pollutants, significant ecosystem changes can result with potential impact on higher trophic levels. The research determined the effects of a complex effluent discharge from the River Raisin in Monroe County, Michigan, on the Lake Erie ecosystem. The river flows through southern Michigan and has large nutrient and industrial inputs, especially in the Monroe Harbor area. The functional parameters measured were bacterial uptake rate of acetate, zooplankton feeding and reproduction rates, and primary production. The results of the effects of complex effluents on gross photosynthesis, measured as carbon-14 ((14)C) uptake, are presented in the paper. |