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Main Title Influence of the St. Marys River Plume on Northern Lake Huron Phytoplankton Assemblages.
Author Kreis, Jr., R. G. ; Ladewski, T. B. ; Stoermer, E. F. ;
CORP Author Michigan Univ., Ann Arbor. Great Lakes Research Div.;Environmental Research Lab.-Duluth, MN.
Year Published 1983
Report Number EPA-R-802721 ;EPA-R-807450; EPA/600/J-83/250;
Stock Number PB85-101707
Additional Subjects Ecology ; Phytoplankton ; Lake Huron ; Diatoms ; Abundance ; Spatial distribution ; Chlorophylls ; Plumes ; Water masses ; Saint Marys River ; Mortality ; Circulation ; Reprints ; Habitats
Library Call Number Additional Info Location Last
NTIS  PB85-101707 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 15p
Analysis of phytoplankton samples from the Straits of Mackinac region yielded high species diversity and species richness values at the outfall of the St. Marys River due to entrained benthic diatoms. Epilithic, psammonic, epipelic, and epiphytic diatoms originating in the St. Marys River and Detour Passage area were removed from their primary habitats and transported into northern Lake Huron. Southward movement of the St. Marys River plume, as determined from the suspended benthic diatom distribution and abundance, was strongly indicated for 3 km. Moderate influence of the plume was noted at 6 km and weaker association with the plume was detected for as far as 32 km. Apparently, loss of suspended riverine species from the upper water column in this area was primarily due to sinking. (Copyright (c) Internat. Assoc. Great Lakes Res. 1983.)