Skip to main content
hyi
Banner
banner
bn

Relationship Between Lake Erie Walleye Gamete Viability And Concentrations Of Vitamins B1 In Eggs And Sperm

Thiamine (vitamin B1) has major impacts on survival of embryonic and early life stages of fish. Low levels of thiamine, a water-soluble vitamin, in eggs have been responsible for early mortality syndrome (EMS) in salmonids from the lower Great Lakes (Marcquenski, 1996), Cayuga syndrome in Atlantic salmon Salmo salar from the Finger Lakes region (Fisher et al., 1995), and M74 (another EMS-like cause of mortality) in Baltic Sea salmon (Bengtsson et al., 1994). Fisher et al. (1996) concluded that the increase in salmonid alevins mortality from Cayuga Lake was directly linked to broodfish diets consisting only of alewife Alosa pseudoharengus and rainbow smelt Osmerus mordax. These two nonindigenous species, as dominant forage fishes in Cayuga Lake, contain thiaminase, an enzyme that destroys thiamine (Fisher et al., 1995, 1996). Similar conclusions were drawn by Fitzsimons and Brown (1998) with respect to lake trout Salvelinus namaycush in the Great Lakes. Alewife and rainbow smelt also have been reported to be the main prey of walleye in northern Lake Michigan (Madenjian et al., 2  2) and the western basin of Lake Erie (Morrison et al., 2   ), leading to the potential that walleye Stizostedion vitreum could suffer EMS. 

Status
In progress
Type
Project
Start Date
End Date
Scope of Study
Field Investigation
Laboratory Investigation
Scale of Phenomena
Community
Population
Lake Basin Connecting Channels
Lake Erie
State Province
Ohio
Annex Numbers
Research & Development
Annex 17
Impact of water quality and AIS on fish and wildlife populations and habitats
Mass transfer of pollutants between GL Basin Ecosystem components
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
    Mass transfer of pollutants between GL Basin Ecosystem components

The Great Lakes - St. Lawrence Research Inventory is an
interactive, Internet-based, searchable database created as a tool to collect and disseminate
up-to-date information about research projects in the
Great Lakes - St. Lawrence Region.