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Are all eggs created equal?: An evaluation of variability in lake trout egg thiamine allocation

Egg thiamine data is used by managers to assess the risk of Thiamine   Deficiency Complex (TDC; also known as EMS or Early Mortality   Syndrome) in lake trout.  Mean egg thiamine levels are currently   measured in a pooled sample of 1  to 12 eggs per female, and the   variability in thiamine among individual eggs within a clutch has   not been characterized.  Our objectives are to:  1) Determine how   female lake trout allocate thiamine among individual eggs; 2.   Determine if among-egg variability in thiamine is related to egg   size and if thiamine deposition is correlated with vitellogenin; and   3. Determine if the allocation pattern of egg thiamine varies based   on an individual female?s thiamine status.

Status
In progress
Type
Project
Start Date
End Date
Researchers
Stephen RileyResearcher
Associated with 4 projects
Scott HeppellPrincipal Investigator
Associated with 1 projects
Allison EvansResearcher
Associated with 1 projects
Agencies
Great Lakes Fishery Commission $ 74,066.00USDActual

Funding 54 projects for a total of $5,089,137.00
Scope of Study
Field Investigation
Laboratory Investigation
Scale of Phenomena
Biochemical
Organism
Processes
Natural Ecological Processes
Resource Management
Fisheries
Lake Basin Connecting Channels
Lake Michigan
Annex Numbers
Surveillance and Monitoring

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