Nevada Department of Wildlife spokesman Chris Healy says they'll begin releasing the first of 35,000 trout into the Truckee River Thursday morning at Fisherman's Park just east of downtown Reno.
NDOW biologist Kim Tisdale says it's four to six weeks earlier than usual but is necessary to make sure there's still enough water in the river to support the fish before flows are expected to dwindle early this summer.
Tisdale says if they don't act now, they'll end up with a hatchery full of fish and nowhere to put them.
California lawmakers heard testimony about the dire state of the fishing industry on the West Coast.
There was a slight reduction in the percentage of drought in California over the past week. But the U.S. Drought Monitor says it will take time to ease the state's historic four-year drought.
A new study says California's four-year drought has reduced hydroelectricity generation, resulting in higher electricity costs to ratepayers and increased greenhouse gas pollution.
Legislation introduced in the California state Assembly would create the Lower American River Conservancy to improve, protect, preserve and possibly expand the 5,000-acre American River Parkway.
January brought above-average rainfall and snow to much of California, partly due to El Niño. But forecasters say the ocean warming condition is "taking a break" for the next week or longer.