Notes
Outline
Status of Coregonines
in Lake Huron, 1999
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Lake Whitefish - Great Lakes Harvest, 1867-1999
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Lake Whitefish - Recruitment
Lake Whitefish - Growth Changes OH-4/5
Lake Whitefish - Growth Changes MH-1
Lake Whitefish - Condition Changes MH-1
Lake Whitefish - Maturity Canadian Waters 1989
Lake Whitefish - Maturity Canadian Waters 1999
Lake Whitefish - Total Mortality Age 5
Lake Whitefish - Total Mortality Age 9
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Deepwater Cisco - Condition MH-1
Deepwater Cisco - Stress to Population
Water Belly Syndrome 1998 & 1999
ranged 0-11%
High Incidence of Parasites
acanthocephalan worms 40-83% of fish
swimbladder nematode 20-92% of fish
Presence of “BKD”
27% of fish Feb. 1998
0% 1999
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Coregonine Summary - FCO Objectives
Diversity objective - met for 3 of 4 species
not being met for lake herring
Harvest objective - being exceeded
chub about right
whitefish too much of total
round whitefish about right
lake herring too little
Lake herring objective - not being met in Saginaw Bay
Deepwater Cisco objective - not being met, probably can’t