Yankee Run IA 01-WPS-367

Assessment Comments

Stream use assessment in Clinton and Cedar counties.

Basis for Assessment

Used a review of the field sheets from the two September 1991 DNR stream use assessments in Clinton and Cedar counties to continue to assess support of the Class B(LR) aquatic life uses as FST due to (1) presence of moderately diverse fish communities at both sample locations (9 species from 4 families & 9 species from 3 families), (2) presence of a majority of the expected fish taxa (5 of 9 at both locations) for streams in the Southern Iowa Rolling Loess Prairies subecoregion (47f), and (3) presence of above average quality of aquatic habitats at both sample locations due to diverse substrates, presence of several pool/riffle sequences, and general lack of significant impacts to the physical characteristics of this stream.   The data upon which this assessment is based are more than 5 years old.   Additional monitoring is needed to update this assessment and to better determine the status of the aquatic communities and habitats of this stream.