Abbe Creek IA 02-CED-500
mouth (S34 T83N R6W Linn Co.) to confluence with unnamed tributary in S4 T82N R5W Linn Co.
Assessment Comments
Stream use assessment in Linn County.
Basis for Assessment
Used a review of the field sheet from the August 1991 DNR stream use assessment in Linn County to continue to assess support of the Class B(LR) aquatic life uses as FST due to (1) presence of a moderately diverse fish community (10 species from 3 families) for streams in the Mississippi River portion of the Southern Iowa Rolling Loess Prairies subecoregion (47f) and (2) presence of a majority of the expected fish taxa (6 of 8) for streams in this subregion. The primary impacts to the physcial characteristics, as identified on the field sheet, include pasturing of the riparian zone and frequent streambank erosion. Other features of the stream, including very diverse substrates and occurrence of several pool/riffle sequences, suggest good potential habitat quality. The data upon which this assessment is based are more than 5 years old. Additional monitoring is needed to update this assessment.
Assessment Key Dates
| 8/1/1991 | DNR Stream Use Assessment |
Methods
| 330 | Fish surveys |
| 375 | Visual observation-- may not quantify some parameters-- single season-- by prof. |
| 150 | Monitoring data more than 5 years old |
Monitoring Levels
| Biological | 3 |
| Habitat | 3 |
| Physical Chemistry | 0 |
| Toxic | 0 |
| Pathogen Indicators | 0 |
| Other Health Indicators | 0 |
| Other Aquatic Life Indicators | 0 |
| # of Bio Sites | 0 |
| BioIntegrity | N/A |