Burr Oak Creek IA 02-CED-580
mouth (S12 T98N R16W Mitchell Co.) to Mitchell County Road T46 at W line S10 T98N R16W Mitchell Co.
Assessment Comments
Assessment is based on results of two DNR stream use assessments in 1992 and 1994.
Basis for Assessment
Continue to assess support of the Class B(LR) aquatic life uses as PS. Follow-up monitoring is needed to determine the status of aquatic communities and habitats and to determine the degree to which the Class B(LR) uses may be impaired. A review of the field sheets from the June 1992 and November 1994 stream use assessments shows relatively poor to a moderately diverse fish community (species/families, 1992->1994: 6/1; 10/3) for streams in the Iowan Surface subecoregion (47c), (2) presence of a slight majority of the expected fish taxa (6 of 11 and 7 of 11) for streams in this subregion, with none of the catfishes or sunfishes represented.
Assessment Key Dates
| 11/1/1994 | DNR Stream Use Assessment |
| 6/1/1992 | DNR Stream Use Assessment |
Methods
| 330 | Fish surveys |
| 375 | Visual observation-- may not quantify some parameters-- single season-- by prof. |
Monitoring Levels
| Biological | 2 |
| 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 |
| Causes | Use Support | Cause Magnitude | Sources | Source Magnitude |
|---|---|---|---|---|
| Other habitat alterations | Overall Use Support | Moderate |
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| Other habitat alterations | Aquatic Life Support | Moderate |
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