Unnamed Tributary to Volga Lake Outlet Fayette (HW#3)
Fish Session #1686
- Sample Date
- 8/4/2015
- Timeframe
- 1150-1210
- Reach Size
- 576 ft
- Method
- Standard Wadeable
- Sample Quality
- Good
- Last Update
- 1/20/2016 12:53:09 PM
This site is on privately-owned land. The DNR obtains permission from the landowner(s) prior to conducting any sampling surveys.
Warm Water
Fair
No comments recorded.
Collected Fish
- Identity verification status for this species
- Size Class: Typically only collected for sportfish
- Taxa excluded from species count metrics.
- Click on species name for more information about that species
| Species | Catch | |
|---|---|---|
|
Brook Stickleback
Latin: Culaea inconstans
Family: Gasterosteidae Tolerance: Sensitive Trophic: Insectivore Is Exotic: False Is LithoSpawner: False Is Hybrid: False |
56 | |
|
Western Blacknose Dace
Latin: Rhinichthys obtusus
Family: Leuciscidae Tolerance: Intermediate Trophic: Insectivore Is Exotic: False Is LithoSpawner: False Is Hybrid: False |
5 | |
|
Common Shiner
Latin: Luxilus cornutus
Family: Leuciscidae Tolerance: Intermediate Trophic: Insectivore Is Exotic: False Is LithoSpawner: False Is Hybrid: False |
3 | |
|
Central Stoneroller
Latin: Campostoma anomalum
Family: Leuciscidae Tolerance: Intermediate Trophic: Herbivore Is Exotic: False Is LithoSpawner: False Is Hybrid: False |
2 |
FIBI Calculation Factors
| Factor | Value |
|---|---|
| Drainage area (mi2) | 0.7900 |
| Log(DA) | 0.0001 |
| Total Fish | 66 |
| Fish per 500 ft | 57 |
| Total Species | 4 |
| # Excluded Taxa | 0 |
| # Exotic Species | 0 |
| # LMB-BG | 0 |
| Calculation Last Updated | 2/7/2025 2:33:32 PM |
Fish Index of Biotic Integrity
| Metric Name | Value | Score |
|---|---|---|
| Native Species | 4 | 10 |
| Sucker Species | 0 | 0 |
| Sensitive Species | 1 | 10 |
| Benthic Invertivore Species | 0 | 0 |
| Top 3 Abundance Percentage | 96.97 | 5 |
| Benthic Invertivore Percentage | 0 | 0 |
| Omnivore Percentage | 0 | 5 |
| Top Carnivore Percentage | 0 | 0 |
| Lithophilous Spawner Percentage | 0 | 0 |
| Tolerance Index | 0.76 | 5 |
| Adjusted Catch per Unit Effort | 11.46 | 1.15 |
| DELT Percentage Adjustment | 0 | 0 |
FIBI Score Explained
Sites that score between 26 - 50 are considered fair. Fish abundance ranges from lower than average to very abundant. If fish are abundant, tolerant species are usually dominant. Native fish species usually equal ten or more species. The three most abundant species typically comprise two-thirds or more of the total number of fish. One or more sensitive species, long-lived fish species or benthic habitat specialists such as suckers (Catostomidae) are present. Top carnivore species are often, but not always present in low abundance. Species that are able to utilize a wide range of food items including plant, animal and detritus are usually more common than specialized feeders, such as benthic invertivore fish. Species that require silt-free, rock substrate for spawning or feeding are typically rare or absent. Fish condition is usually good; however, elevated levels of fish exhibiting external anomalies associated with disease or stress are not unusual.
This location has been classified as a Candidate Reference Site. Further study is required to determine if this site represents natural stream qualities that are least disturbed by human activities within the watershed.
EcoRegion Comparison
Scores for a sampling session are compared against reference sites within the same ecoregion:
Paleozoic Plateau (Driftless Area)
This site is in the Paleozoic Plateau (Driftless Area) ecoregion.
| Max | 91 |
| 75th Percentile | 63 |
| Median | 54 |
| 25th Percentile | 47 |
| Min | 9 |
| This Session's Score | 33 |
| Total Reference Site Samples | 114 |
| Mean | 55.61 |
| Standard Deviation | 16.18 |