Cylinder Creek IA 04-UDM-1297

Assessment Comments

Stream use assessment.

Basis for Assessment

Used a review of the field sheet from the October 1992 DNR stream use assessment in Palo Alto County to continue to assess support of the Class B(LR) aquatic life uses as PS due to (1) relatively low fish community diverstiy (5 species from 1 family (Cyprinidae)) for streams in the Des Moines Lobe subecoregion, (2) presence of less than a majority of the expected fish taxa (3 of 11) for streams in this subregion, and indications on field sheet of frequent channel alterations due to over-pasturing of the riparian zone and to upstream channelization.   Follow-up monitoring is needed to better define the status of the aquatic communitie and habitats and to determine the degree to which the Class B(LR) uses may be impaired.