Thousands of fish are dying in central United States as the hot, dry summer dries up rivers and causes water temperatures to climb in some spots to nearly 38 degrees Celsius. About 40,000 shovelnose sturgeon were killed in Iowa last week as water temperatures reached 36.1 Celsius. 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 surgeon. 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.

Rising temperatures kill thousands of fish. (2012, August 7). Philippine Daily Inquirer, p. A23.