West Fork Little Sioux River IA 06-LSR-1600
from confluence with Mud Cr. (S31 T89N R44W Woodbury Co.) to confluence with unnamed tributary in S3 T91N R42W Cherokee Co.
Assessment Comments
Assessment is based on results of July 1992, July 1994, and October 1995 IDNR stream use assessments near Moville, Woodbury county.
Basis for Assessment
Upgraded the assessment of support of the Class B(LR) aquatic life uses from PS to FST due to a review of field sheets from DNR stream use assessments in July 1992, July 1994, and October 1995 that shows a fish community in this stream that contains a majority of the expected species/genera typical of Class B(LR) streams in this region. Results of this review, however, are consistent with the 1996 305(b) assessment that suggests that this is a marginal Class B(LR) stream. Relative high stream flows during the July 1994 and October 1995 stream use assessments limited the effectiveness of sampling this fish community; thus, additional monitoring is needed to better define the aquatic communities and habitats of this stream. Despite the continued threats from extensive channelization and frequent streambank erosion, the fish community present in this stream suggests that the Class B(LR) uses are fully supported.
Assessment Key Dates
Methods
| 330 | Fish surveys |
| 375 | Visual observation-- may not quantify some parameters-- single season-- by prof. |
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 |