The Midwest drought is taking its tolls on fisheries across that region. Hundreds of thousands of fish are being killed off due to the high temperatures and low water levels. About 40,000 shovelnose sturgeons were killed in Iowa last week as water temperatures reached 97 degrees. Nebraska fishery officials said they’ve seen thousands of dead sturgeon, catfish, carp, and other species in the Lower Platte River, including the endangered pallid sturgeon. And biologists in Illinois said the hot weather has killed tens of thousands of large- and smallmouth bass and channel catfish and is threatening the population of the greater redhorse fish, a state-endangered species. So many fish died in one Illinois lake that the carcasses clogged an intake screen near a power plant, lowering water levels to the point that the station had to shut down one of its generators. The fish are victims of one of the driest and warmest summers in history. The federal U.S. Drought Monitor shows nearly two-thirds of the lower 48 states are experiencing some form of drought, and the Department of Agriculture has declared more than half of the nation’s counties, nearly 1,600 in 32 states, as natural disaster areas. More than 3,000 heat records were broken over the last month.