Temperature drop could ease summer fish kills - KTIV News 4 Sioux City IA: News, Weather and Sports

A cooling of temperatures after July's extreme heat in the Dakotas could help ease the trend of localized fish kills on the two states' lakes and rivers.
   North Dakota Game and Fish Department fisheries management director Scott Gangl says warm August days are typically the ones biologists worry about, but fish might have simply experienced summer stressors earlier than normal.
   Nearly a dozen North Dakota water bodies had some level of fish kills this summer, affecting northern pike, trout, panfish and yellow perch.
   In South Dakota, hundreds of fish died and washed up along the Big Sioux River late last month. South Dakota Game, Fish and Parks regional fisheries manager Todd St. Sauver says kills also have been reported on the James River and on some state lakes.