Fish biologists say as many as 100,000 trout, bass and catfish have died the past month in the Sparks Marina along Interstate 80.
Nevada Department of Wildlife spokesman Chris Healy says low oxygen levels killed about 3,000 fish in one corner of the 77-acre lake in mid-December but they thought the event was localized and of limited impact.
Since then, they've been unable to detect any live fish.
Biologists say a cold-snap could have stirred up oxygen-poor waters but they don't understand yet what caused the massive die-off.
Firefighters are still battling a 45,800-acre fire in Monterey County. Meanwhile, crews are fighting a 53,925-acre fire in northern Nevada.
(AP) — An official says fire crews are trying to contain a nearly 8-square-mile wildfire from reaching a state highway in the remote and scenic Poodle Mountain Wilderness Study Area in northwest Nevada.
(AP) — A state board has approved $2.5 million more to fight efforts to develop the Yucca Mountain nuclear waste dump in Nevada.
The state of Nevada will pay $120,000 to settle a U.S. Environmental Protection Agency complaint about storm water runoff pollution in Reno.
(AP) — Only 10 percent of Nevada's high school juniors are considered college-ready in four core subjects based on their ACT test scores.