Davids Creek IA 05-NSH-1437

Assessment Comments

Stream use assessment in October 1991.

Basis for Assessment

Used a review of the field sheet from the October 1991 DNR stream use assessment at Exira to continue to use the assessment of support of the Class B(LR) aquatic life uses developed for the 1994 report.   The conditions of the aquatic community and habitat at the assessment site strongly suggest full support of the Class B(LR) uses:  very diverse fish community (15 species from 4 families) for streams of the Loess Hills and Rolling Prairies (47e) subecoregion that contains all the expected fish taxa (7 of 7) for streams in this subecoregion, and habitat quality was rated as above average with no significant threats identified.   Away from the assessment site, however, Davids Creek tends to be wide and shallow with below average habitat quality.   Thus, continue to assess support of the Class B(LR) uses as FST with the primary threat to continued support being channel alterations (primarily channelization) in upstream reaches.