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Are Lake Trout in an Introduced Population Morphologically andGenetically Segregated by Depth?

Our work to date on introduced lake trout in Flathead Lake, Montana   suggests that this population's habitat use, lipid content, and   growth rate are segregated by depth. Our proposed pilot study aims   to corroborate these initial observations and examine if the   observed segregation corresponds to morphological variation and/or   genetic population structure. Our project has three objectives (1)   Further investigate our initial observation that deep captured lake   trout have higher lipid content, (2) Examine if the observed depth   segregation corresponds to morphological variation, (3) Examine if   the observed depth segregation corresponds to genetic population   structure. If there are morphological and/or genetic differences   with depth, lake trout from Flathead Lake (together with other   western populations) could provide key information needs for Great   Lakes restoration. Specifically, introduced western populations may   be useful for examining what ecological or historic (i.e., stocking   events) factors promote lake trout population genetic and phenotypic   diversification and over what temporal scales divergence may occur.  

Status
In progress
Type
Project
Start Date
End Date
Scope of Study
Field Investigation
Scale of Phenomena
Organism
Population
Impact of Pollutants
Exotic Species
Processes
Natural Ecological Processes
Resource Management
Fisheries
Annex Numbers
Research & Development
Annex 17
Impact of water quality and AIS on fish and wildlife populations and habitats
General
Annex
  • Annex Numbers
    Annex Numbers
    Research & Development
  • Annex 17
    Annex 17
    Impact of water quality and AIS on fish and wildlife populations and habitats

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Great Lakes - St. Lawrence Region.