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|DNR to limit walleye production as VHS protection|
|Written by The Flint Journal|
|Sunday, 22 March 2009 08:48|
The State Department of Natural Resources (MI) will continue only limited production of walleye fry in 2009 as a precaution against spreading viral hemorrhagic septicemia (VHS) into inland waters.
VHS has been found in several regions of the Great Lakes and their connecting waterways where the best walleye broodstock are located.
The strain from Saginaw Bay and Tittabawassee River will not be used this year.
Fisheries staffers will take eggs and milt in the Muskegon River and Little Bay de Noc, spaced out over several weeks to maximize production, which will be limited to 6 million fry.
The Thompson State Fish Hatchery will be the only location used for incubating eggs since it has a facility separate from the steelhead-rearing area to prevent potential VHS spread.
Only nondrainable outside ponds will be used for rearing fry after the three to five days spent at the hatchery.
All adult brood stock will be tested for VHS. Samples of fry and fingerlings will also be tested prior to stocking. There is no proven method for disinfecting walleye eggs at this time. If one is developed, production might be increased in the future.
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