GRANTS PASS, Ore. (AP) — Drought and record hot weather are producing lethal conditions for salmon and trout in rivers across the West.A recent survey released Wednesday of the lower reaches of 54 rivers in Oregon, California and Washington by the conservation group Wild Fish Conservancy showed nearly three-quarters had temperatures higher than 70 degrees, considered potentially deadly for salmon and trout.Low river flows from the record low winter snowpack, which normally feeds rivers through the summer, combined with record hot weather have created a “perfect storm” of bad conditions for salmon and trout, said U.S. Fish and Wildlife Service supervisory fisheries biologist Rich Johnson.“It’s unprecedented, I’d say,” Johnson said.Oregon Climate Center Associate Director Kathie Dello says the entire West Coast saw record low snowpack last winter, leading to low rivers this summer. All three states had record high temperatures for June, with Oregon breaking the record by 3 degrees, and the three-month outlook from the National Oceanic and Atmospheric Administration is for continued warmer and drier-than-normal weather made worse by the ocean-warming condition known as El Nino, she added.“This is the worst case scenario playing out right now, a warm winter and then a warm and dry summer,” she said.The Willamette River saw scores of dead salmon in June.This week, state biologists examined about 50 dead sockeye salmon in the mouth of the Deschutes River. State fisheries biologist Rod French said they appeared to have been infected with a gill rot disease associated with warm water, and had probably left the warm waters of the Columbia River in search of cooler water.In California, inland fisheries manager Roger Bloom says they are considering emergency fishing closures on several rivers so that fish weakened by the warm water do not die from being played by an angler, even if they are released.