DENVER (AP) – Colorado wildlife managers say rainbow trout are finally recovering in most of the state’s major rivers after they were devastated in the 1990s by an ailment called whirling disease.
Colorado Parks and Wildlife said Tuesday a 15-year effort to crossbreed native trout with a disease-resistant strain from a hatchery in Germany has paid off. Anglers are catching the new strain in the Colorado, Rio Grande, Gunnison, Poudre and Arkansas rivers, among others.READ MORE: Aidan Atkinson Sentenced To 1 Year Probation In Plea Agreement
The disease deforms the spine of young fish, causing them to swim in a whirling pattern. They die shortly after they’re infected.READ MORE: Helicopter Drops 'Fireballs' That Ignite Controlled Burns To Mitigate Wildfire Fuel, Help Elk Habitat
Officials say the disease was introduced to Colorado in 1986 when a private hatchery unknowingly bought infected rainbow trout from Idaho. By the mid-1990s, it spread throughout the state, and rainbow trout stopped reproducing naturally.MORE NEWS: COVID In Denver: No More Face Masks, Capacity Limits, Or Social Distancing Starting Sunday
(© Copyright 2015 The Associated Press. All Rights Reserved. This material may not be published, broadcast, rewritten or redistributed.)