1. RAISING ADVANCED EXTENDED GROWTH
WALLEYES IN NORTHERN WISCONSIN

2. Walleye Egg Collection and Transport

3. Walleye Egg Collection and Transport

4. 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

5. 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%.

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

7. Walleye Project Egg Incubation and Treatment
FRY SURVIVAL

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

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