Little Sioux River IA 06-LSR-1577
from confluence with Ocheyedan R. at Spencer (S13 T96N R37W Clay Co.) to confluence with Milford Cr. in NW 1/4 S14 T98N R37W Dickinson Co.
This is a Legacy Assessment. Prior to 2004, assessments were developed under a methodology that pre-dated the Integrated Report guidelines.
Assessment Cycle
1998
Result Period
1994 - 1996
Designations
Assessment Type
Monitored
Integrated Report
Category 0
Legacy ADBCode
IA 06-LSR-0040_1
Overall Use Support
Threatened
Aquatic Life Use Support
Threatened
Fish Consumption
Not assessed
Documentation
Assessment Comments
Assessment is based on results of a 1996 IDNR biocriteria sampling conducted in Dickinson county.
Basis for Assessment
Continued to use the assessment of support of the Class B(WW) aquatic life uses developed for the 1996 report (=FST). Results of the 1996 biocriteria sampling showed a relatively diverse fish community with 19 species from 7 families and the presence of a majority of the expected fish taxa for streams in the Des Moines Lobe subecoregion (7 of 11). Expected game fish species (e.g., channel catfish, northern pike, and walleye) present.
Monitoring and Methods
Assessment Key Dates
Methods
| 220 | Non-fixed station physical/chemical monitoring (conventional pollutant only) |
| 315 | Regional reference site approach |
| 320 | Benthic macroinvertebrate surveys |
| 330 | Fish surveys |
| 380 | Quan. measurements of instream parms-- channel morphology-- floodplain-- 1-2 seasons-- by prof |
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 | 0 |
| BioIntegrity | N/A |