. Fish populations of the wild & scenic Missouri River, Montana . Fishing surveys; Wild and scenic rivers; Fishes; Fishes. In 1977, water temperatures at the Coal Banks Landing and Robinson Bridge stations from mid-April through early November averaged and C ( and F) degrees higher, respectively, than the Fort Benton station. At the Morony Dam station during 1977, a shorter period of record was available than for the other three Missouri River stations. However, during a period of record from early June through early September, 1977, water temperature at the Morony Dam stati
. Fish populations of the wild & scenic Missouri River, Montana . Fishing surveys; Wild and scenic rivers; Fishes; Fishes. In 1977, water temperatures at the Coal Banks Landing and Robinson Bridge stations from mid-April through early November averaged and C ( and F) degrees higher, respectively, than the Fort Benton station. At the Morony Dam station during 1977, a shorter period of record was available than for the other three Missouri River stations. However, during a period of record from early June through early September, 1977, water temperature at the Morony Dam station averaged C ( F) degrees lower than the Fort Benton station. During 1977, the mean diurnal differences between the average maximum and average minimum water temperatures were , , , and C (, , , and F) degrees for the Morony Dam, Fort Benton, Coal Banks Landing, and Robinson Bridge stations, In 1978, water temperatures at the Coal Banks Landing and Robinson Bridge stations from late April through mid-October averaged and C ( and F) degrees higher, respectively, than the Fort Benton station. During the same period of record in 1979, water temperatures at the Coal Banks Landing and Robinson Bridge stations averaged C ( F) degrees lower and C ( F) degrees higher, respectively, then the Fort Benton station. The colder water temperatures in 1979 at the Coal Banks Landing and Robinson Bridge stations are due to relatively cooler water temperatures of the Marias River in 1979. The mean diurnal differences between the average maximum and average minimum water temperatures at the Fort Benton, Coal Banks Landing, and Robinson Bridge stations, respectively were , , and C (, , and F) degrees in 1978 and , , and C (, , and F) degrees in 1979. The Marias River enters the Missouri River between the Fort Benton and Coal Banks Landing stations. The average te
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