Long Dick Creek IA 03-SSK-960
mouth (S18 T85N R23W Story Co.) to N. line of S34 T86N R23W Hamilton Co.
Assessment Comments
1997 Biocriteria: Fish IBI=19 (poor), 39 (fair); BM-IBI= 48 (fair), 57 (good).
Basis for Assessment
The assessment was based on data collected in 1997 as part of the DNR/UHL stream biocriteria project. A series of biological metrics which reflect stream water quality and habitat integrity were calculated from the biocriteria sampling data. The biological metrics are based on the numbers and types of benthic macroinvertebrate taxa and fish species that were collected in the stream sampling reach. The biological metrics were combined to make a fish community index of biotic integrity (F-IBI) and a benthic macroinvertebrate index (BM-IBI). The indexes rank the biological integrity of a stream sampling reach on a rising scale from 0 (minimum) to 100 (maximum).
The F-IBI scores were 19 (poor) and 39 (fair) and the BM-IBI scores were 48 (fair) and 57 (good). The aquatic life use support was assessed as partially supported (=PS), based on a comparison of the F-IBI and BM-IBI scores with biological assessment criteria established specifically for the 2000 Section 305(b) report. The biological assessment criteria were determined from a statistical analysis of data collected at stream ecoregion reference sites from 1994-1998.
Assessment Key Dates
10/2/1997 | 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 | 2 |
BioIntegrity | Fair |