ADBNet

Assessment Comments

Stream use assessment.

Basis for Assessment

Continue to use the assessment of support of the Class B(WW) aquatic life uses developed for the 1994 report (=FST).   A review of the field sheet from the October 1992 DNR stream use assessment shows a very diverse fish community (24 species from 5 families) for streams in the Des Moines Lobe subecoregion and the presence of all the expected fish taxa (11 of 11) for streams in this subecoregion.  In addition, over 20 channel catfish were collected with most from 10-12" TL, and over 20 smallmouth bass juveniles from 2-3" TL were also collected.   Despite the exceptional fish diversity, presence of all expected fish taxa, and presence of the expected game fish species, this Class B(WW) reach appears to be negatively influenced by upstream impacts from overpasturing of the riparian corridor and the related streambank erosion and potential nutrient enrichment.