Floyd River Sheldon Well Field
Fish Session #60
- Sample Date
- 9/7/1995
- Timeframe
- 0900-1100
- Reach Size
- 1110 ft
- Method
- Standard Wadeable
- Sample Quality
- Fair
- Last Update
- 2/26/2025 7:30:38 AM
This site is on privately-owned land. The DNR obtains permission from the landowner(s) prior to conducting any sampling surveys.
Warm Water
Fair
COOL AND CLOUDY, TEMP. ABOUT 50 F. FLOW MUCH ABOVE NORMAL, FOLLOWING RECENT RAINS. MODERATELY HIGH TURBIDITY OF WATER. MAX. DEPTH IN SAMPLING REACH WAS >4.5'. A FEW AREAS AT CHANNEL BENDS WERE TOO DEEP TO WADE INTO. SAMPLING EFFECTIVENESS WAS GENERALLY FAIR DUE TO SWIFT CURRENT AND LACK OF VISIBILITY. SHOCKER UNIT PERFORMED WELL ON LOW DC SETTING. SPEC. KEPT.
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 | |
|---|---|---|
|
Central Stoneroller
Latin: Campostoma anomalum
Family: Leuciscidae Tolerance: Intermediate Trophic: Herbivore Is Exotic: False Is LithoSpawner: False Is Hybrid: False |
418 | |
|
Creek Chub
Latin: Semotilus atromaculatus
Family: Leuciscidae Tolerance: Tolerant Trophic: Generalist Is Exotic: False Is LithoSpawner: False Is Hybrid: False |
394 | |
|
White Sucker
Latin: Catostomus commersonii
Family: Catostomidae Tolerance: Intermediate Trophic: Omnivore Is Exotic: False Is LithoSpawner: False Is Hybrid: False |
163 | |
|
Western Blacknose Dace
Latin: Rhinichthys obtusus
Family: Leuciscidae Tolerance: Intermediate Trophic: Insectivore Is Exotic: False Is LithoSpawner: False Is Hybrid: False |
114 | |
|
Common Shiner
Latin: Luxilus cornutus
Family: Leuciscidae Tolerance: Intermediate Trophic: Insectivore Is Exotic: False Is LithoSpawner: False Is Hybrid: False |
100 | |
|
Bigmouth Shiner
Latin: Ericymba dorsalis
Family: Leuciscidae Tolerance: Tolerant Trophic: Insectivore Is Exotic: False Is LithoSpawner: False Is Hybrid: False |
92 | |
|
Sand Shiner
Latin: Miniellus stramineus
Family: Leuciscidae Tolerance: Intermediate Trophic: Insectivore Is Exotic: False Is LithoSpawner: False Is Hybrid: False |
64 | |
|
Fathead Minnow
Latin: Pimephales promelas
Family: Leuciscidae Tolerance: Tolerant Trophic: Omnivore Is Exotic: False Is LithoSpawner: False Is Hybrid: False |
57 | |
|
Johnny Darter
Latin: Etheostoma nigrum
Family: Percidae Tolerance: Intermediate Trophic: Benthic Invertivore Is Exotic: False Is LithoSpawner: False Is Hybrid: False |
28 | |
|
Orangespotted Sunfish
Latin: Lepomis humilis
Family: Centrarchidae Tolerance: Intermediate Trophic: Insectivore Is Exotic: False Is LithoSpawner: False Is Hybrid: False |
8 | |
|
Green Sunfish
Latin: Lepomis cyanellus
Family: Centrarchidae Tolerance: Tolerant Trophic: Generalist Is Exotic: False Is LithoSpawner: False Is Hybrid: False |
7 | |
|
Stonecat
Latin: Noturus flavus
Family: Ictaluridae Tolerance: Intermediate Trophic: Benthic Invertivore Is Exotic: False Is LithoSpawner: False Is Hybrid: False |
5 | |
|
Brassy Minnow
Latin: Hybognathus hankinsoni
Family: Leuciscidae Tolerance: Intermediate Trophic: Herbivore Is Exotic: False Is LithoSpawner: False Is Hybrid: False |
4 | |
|
Common Carp
Latin: Cyprinus carpio
Family: Cyprinidae Tolerance: Tolerant Trophic: Omnivore Is Exotic: True Is LithoSpawner: False Is Hybrid: False |
3 | |
|
Bluegill
Latin: Lepomis macrochirus
Family: Centrarchidae Tolerance: Intermediate Trophic: Insectivore Is Exotic: False Is LithoSpawner: False Is Hybrid: False |
3 |
FIBI Calculation Factors
| Factor | Value |
|---|---|
| Drainage area (mi2) | 65.2420 |
| Log(DA) | 1.8145 |
| Total Fish | 1460 |
| Fish per 500 ft | 658 |
| Total Species | 15 |
| # Excluded Taxa | 0 |
| # Exotic Species | 1 |
| # LMB-BG | 1 |
| Calculation Last Updated | 2/26/2025 7:30:39 AM |
Fish Index of Biotic Integrity
| Metric Name | Value | Score |
|---|---|---|
| Native Species | 13 | 6.08 |
| Sucker Species | 1 | 2.76 |
| Sensitive Species | 0 | 0 |
| Benthic Invertivore Species | 2 | 3.54 |
| Top 3 Abundance Percentage | 66.78 | 5.16 |
| Benthic Invertivore Percentage | 2.26 | 0.52 |
| Omnivore Percentage | 15.27 | 8.55 |
| Top Carnivore Percentage | 0 | 0 |
| Lithophilous Spawner Percentage | 0 | 0 |
| Tolerance Index | 6.89 | 4.94 |
| Adjusted Catch per Unit Effort | 81.71 | 8.17 |
| DELT Percentage Adjustment | 0.14 | 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 Rejected Candidate Reference Site. This site was considered for Reference Site status, but subsequent biological assessments have determined that this site does not meet the qualifications of a Reference Site.
EcoRegion Comparison
Scores for a sampling session are compared against reference sites within the same ecoregion:
| Max | 63 |
| 75th Percentile | 49 |
| Median | 44 |
| 25th Percentile | 40 |
| Min | 35 |
| This Session's Score | 36 |
| Total Reference Site Samples | 25 |
| Mean | 45.36 |
| Standard Deviation | 7.15 |