Mosquito Creek IA 04-RAC-1200
mouth (S34 T79N R29W Dallas Co.) to confluence with unnamed tributary in S21 T81N R30W Guthrie Co.
Assessment Comments
Assessment is based on results of 1996 Biocriteria sampling: Fish IBI=28 (fair), BM-IBI=67 (good).
Basis for Assessment
Used information from the July 1996 DNR stream biocriteria sampling to assess support of the Class B(LR) aquatic life uses as FST: majority of the expected fish taxa present; no violations of Class B(LR) WQ criteria in the water sample collected during biocriteria sampling. Review of field sheets from the October 1992 DNR stream use assessment shows moderately diverse fish communities (species/families: 11/5, 8/4) and a majority of the exected fish taxa (10 of 11 and 7 of 11) for streams in the Des Moines Lobe subecoregion (47b). Field sheets do not indicate significant impacts from channel alterations or streambank erosion but do indicate a predominance of shifting sand substrate.
Assessment Key Dates
| 7/15/1996 | Biological Monitoring |
Methods
| 330 | Fish surveys |
| 380 | Quan. measurements of instream parms-- channel morphology-- floodplain-- 1-2 seasons-- by prof |
| 220 | Non-fixed station physical/chemical monitoring (conventional pollutant only) |
| 315 | Regional reference site approach |
| 320 | Benthic macroinvertebrate surveys |
Monitoring Levels
| Biological | 4 |
| Habitat | 4 |
| Physical Chemistry | 1 |
| Toxic | 0 |
| Pathogen Indicators | 0 |
| Other Health Indicators | 0 |
| Other Aquatic Life Indicators | 0 |
| # of Bio Sites | 1 |
| BioIntegrity | Fair |