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Genetic Diversity and Divergence of Darter and Unionid Populations as Urban Ecological Indicators

Our concurrent examination of darters and a mussel species stimulated  two research programs that compare diversity across neighboring  tributaries of Lake Erie.  Mussels require fish hosts to disperse,  and therefore, isolation of fish populations between streams may  underlie concurrent variation in populations of freshwater mussels.   The present small grant initiated investigation in this question that  has been continued in the laboratories of Carol Stepien at the Lake  Erie Center of the Univrsity of Toledo and Bob Krebs at Cleveland  State University, and ongoing projects are beginning to elucidate a  picture of the variation present in fishes and mussels.  Although the  river mouths in northeast Ohio often are close together (<1  miles  apart), and each river may support a diverse community of both fishes  and mussels, populations from each river can be very different.  As  such, protecting the biotas of each of these rivers is necessary as a  part of maintaining the watershed of Lake Erie. 

Status
In progress
Type
Project
Start Date
End Date
Researchers
Carol StepienPrincipal Investigator
Associated with 4 projects
Amanda HaponskiResearcher
Associated with 1 projects
Agencies
Ohio Sea Grant College Program $ 17,000.00USDEstimates

Funding 15 projects for a total of $599,045.00
Scope of Study
Field Investigation
Laboratory Investigation
Scale of Phenomena
Community
Organism
Population
Processes
Natural Ecological Processes
Natural Physical/Geological Processes
Land Use and Habitat
Shoreline
Resource Management
Fisheries
Wildlife
Lake Basin Connecting Channels
Lake Erie
State Province
Ohio
Annex Numbers
Research & Development
Surveillance and Monitoring
Annex 17
Cause-effect inter-relationships of productivity and ecotoxicity
Physical and transformational processes affecting delivery of pollutants
General
Annex
  • Annex Numbers
    Annex Numbers
    Research & Development
    Surveillance and Monitoring
  • Annex 17
    Annex 17
    Cause-effect inter-relationships of productivity and ecotoxicity
    Physical and transformational processes affecting delivery of pollutants

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up-to-date information about research projects in the
Great Lakes - St. Lawrence Region.