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Microbial Facilitation of Organic Carbon and Contaminant Transfers into the Lake Superior Foodweb

Researchers will examine how bacteria, which account for a   relatively high (8 -9 %) amount to the metabolic activity in Lake   Superior, might also contribute to the bioaccumulation of   contaminants.  They will identify the factors that permit microbes   to dominate relatively unproductive lakes and assess their relevance   in transferring PCB's to lake trout and other higher-order predators.  Objectives: To determine the importance of microbial components of   the food web to contaminant loads in Lake Superior.  To determine   the mass of PCBs and organic carbon in microbial components; To   determine the fluxes of PCBs and organic carbon into and out of   bacteria; To compare bacterial PCB mass and fluxes to the rest of   the food web; To characterize the role of nutrients and trophic   state in contaminant mass and fluxes in the water column.    (chemicals of concern); (chemical of concern); (PCB's); (PCBs);   (PCB); (Polychlorinated biphenyls); (Polychlorinated biphenyl)

Status
In progress
Type
Project
Start Date
End Date
Researchers
James CotnerPrincipal Investigator
Associated with 2 projects
Deborah SwackhamerResearcher
Associated with 7 projects
Agencies
Minnesota Sea Grant College Program $ 109,068.00USDEstimates

Funding 30 projects for a total of $2,568,917.00
Scope of Study
Field Investigation
Laboratory Investigation
Scale of Phenomena
Ecosystem
Impact of Pollutants
Toxic Organics
Lake Basin Connecting Channels
Lake Superior
State Province
Minnesota
Wisconsin
Annex Numbers
Persistent Toxic Substances
Research & Development
Annex 17
Mass transfer of pollutants between GL Basin Ecosystem components
Physical and transformational processes affecting delivery of pollutants
General
Annex
  • Annex Numbers
    Annex Numbers
    Persistent Toxic Substances
    Research & Development
  • Annex 17
    Annex 17
    Mass transfer of pollutants between GL Basin Ecosystem components
    Physical and transformational processes affecting delivery of pollutants

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Great Lakes - St. Lawrence Region.