RAISING ADVANCED EXTENDED GROWTH

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Presentation transcript:

RAISING ADVANCED EXTENDED GROWTH WALLEYES IN NORTHERN WISCONSIN

Walleye Egg Collection and Transport

Walleye Egg Collection and Transport

Walleye Project Egg Incubation and Treatment In 2007 due to concerns with VHS : Used UV treated water Disinfected eggs with 100/ppm iodine several ways

Walleye Project Egg Incubation and Treatment RESULTS Iodine treated egg hatching success rate ranged from 25% to 75% depending on treatment. Untreated control eggs hatching success averaged 63%.

Walleye Project Egg Incubation and Treatment RESULTS Two most successful methods at NADF were : Water hardening fertilized eggs in iodine for approximately 45-60 minutes. Placing fertilized water hardened eggs in a 10 minute bath of iodine. Both methods resulted in 75% hatching success rate

Walleye Project Egg Incubation and Treatment FRY SURVIVAL

Walleye Project – Fingerling Pond Survival Average Survival was 60% Fish size: 33mm – 1000 fish/lb

Project Partners: LCO, Red Cliff Fish Hatchery, WI baitdealers, WiDNR (Spooner hatchery crew) QUESTIONS??????????????