Ecological Assessment of Streams in the Powder River Structural Basin, Wyoming and Montana, 2005-06

摘要

The primary purpose of this report is to describe the ecological assessment of streams in the PRB in northeastern Wyoming and southeastern Montana. Characteristics of the habitat and biological communities (macroinvertebrates, algae, and fish) are based on samples collected at 47 sites during 2005-06. Fish and habitat data collected from sites on the main stem of the Powder River in Wyoming and at one miscellaneous site on the South Fork of the Powder River during 2004 also are presented as well as macroinvertebrate and algal data from 1980-2007.