Aquatic Invertebrate Monitoring at Knife River Indian Villages National Historic Site.

摘要

The Knife River in central North Dakota is not supporting its designated use of recreation in the state because of high concentrations of fecal coliform along much of the rivers length. About 60% of the length of the Knife River has fecal coliform concentrations higher than the recreation standard (200 colony forming units/100 mL). Basic water quality was measured, fecal coliform concentrations, Escherichia coli concentrations, and aquatic invertebrate assemblages at three sites to estimate the ecosystem quality along the 5.5 km of the Knife River that flows through Knife River Indian Villages National Historic Site.