Middle Platte River IA 05-PLA-1494

Assessment Comments

The August 1991 DNR stream use assessments conducted in Union county were used for this assessment but since they were >5 years old the assessment type is evaluated not monitored.

Basis for Assessment

Used a review of the field sheet from the August 1991 DNR stream use assessment SE of Kent in Union County to upgrade the assessment of support of the Class B(LR) aquatic life uses from PS to FST due to (1) a moderately diverse fish commuity for a headwater stream in the Missouri River portion of the Southern Iowa Loess Prairies (47f) subecoregion (10 species from 4 families), (2) presence of all the expected fish taxa for streams in this subecoregion (6 of 6), and (3) indications on field sheet of only isolated areas of channel alterations and stream bank erosion.   Data upon which this assessment is based are more than 5 years old.   Additional monitoring is needed to update the assessment and to determine the status of the aquatic communities and habitats.