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Conservation genetics of deepwater sculpin in the Great Lakes

The deepwater sculpin (Myoxocephalus thompsoni) was historically  present in all of the Great Lakes except Lake Erie. It has been  considered extirpated from Lake Ontario since the mid-197 's,   possibly  due to pesticide exposure, larval predation or competition by  introduced alewife, and/or juvenile predation or competion by adult  slimy sculpins. The capture of several Lake Ontario specimens of M.  thompsoni in recent years, however, highlights the potential for  native species rehabilitation. Populations of deepwater sculpin   appear  to remain relatively high in lakes Huron, Michigan and Superior,  although declines in Lake Michigan since the mid-198 s have been  reported.  The GLFC is interested in reintroducing extirpated  deepwater species, including deepwater sculpin, within the Great  Lakes. One necessary component for reintroduction efforts is the  identification of suitable source populations. This project will  examine the genetic relationships between populations in the Great  Lakes basin using fresh and preserved (i.e. museum) specimens.

Status
In progress
Type
Project
Start Date
End Date
Scope of Study
Field Investigation
Laboratory Investigation
Scale of Phenomena
Organism
Processes
Natural Ecological Processes
Resource Management
Fisheries
Lake Basin Connecting Channels
Lake Erie
Lake Huron
Lake Michigan
Lake Ontario
Lake Superior
State Province
Ontario
Annex Numbers
Surveillance and Monitoring
General
Annex

The Great Lakes - St. Lawrence Research Inventory is an
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up-to-date information about research projects in the
Great Lakes - St. Lawrence Region.