Nelson Ditch Mondamin
Fish Session #2479
- Sample Date
- 7/30/2024
- Timeframe
- 1050-1105
- Reach Size
- 250 ft
- Method
- Standard Wadeable
- Sample Quality
- Fair
- Last Update
- 2/21/2025 12:50:37 PM
This site is on privately-owned land. The DNR obtains permission from the landowner(s) prior to conducting any sampling surveys.
- UAA Fish Sampling
Warm Water
Poor
Abundant vegetation made electrofishing difficult and made the stream impassible both upstream and downstream of our reach.
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 | |
|---|---|---|
|
Common Carp
Latin: Cyprinus carpio
Family: Cyprinidae Tolerance: Tolerant Trophic: Omnivore Is Exotic: True Is LithoSpawner: False Is Hybrid: False |
6 | |
|
Sand Shiner
Latin: Miniellus stramineus
Family: Leuciscidae Tolerance: Intermediate Trophic: Insectivore Is Exotic: False Is LithoSpawner: False Is Hybrid: False |
6 |
FIBI Calculation Factors
| Factor | Value |
|---|---|
| Drainage area (mi2) | 9.3000 |
| Log(DA) | 0.9685 |
| Total Fish | 12 |
| Fish per 500 ft | 24 |
| Total Species | 2 |
| # Excluded Taxa | 0 |
| # Exotic Species | 1 |
| # LMB-BG | 0 |
| Calculation Last Updated | 10/28/2025 9:39:53 AM |
Fish Index of Biotic Integrity
| Metric Name | Value | Score |
|---|---|---|
| Native Species | 1 | 0.88 |
| Sucker Species | 0 | 0 |
| Sensitive Species | 0 | 0 |
| Benthic Invertivore Species | 0 | 0 |
| Top 3 Abundance Percentage | 100 | 0 |
| Benthic Invertivore Percentage | 0 | 0 |
| Omnivore Percentage | 50 | 0 |
| Top Carnivore Percentage | 0 | 0 |
| Lithophilous Spawner Percentage | 0 | 0 |
| Tolerance Index | 7.5 | 0 |
| Adjusted Catch per Unit Effort | 2.4 | 0.24 |
| DELT Percentage Adjustment | 0 | 0 |
FIBI Score Explained
Sites that score between 0 - 25 are considered poor. Fish abundance is usually lower than normal or, if fish are abundant, the collection is dominated by a few tolerant species. The number of native fish species present is low. Sensitive species and habitat specialists are absent or extremely rare. The population is dominated by just a few ubiquitous species that are tolerant of wide-ranging water quality and habitat conditions. Pioneering, introduced and/or short-lived fish species are typically the most abundant types of fish. Fish collected at poor sites often have a higher than normal occurrence of external physical anomalies.
This location has been classified as a survey site. Survey sites are compared to reference sites within the same ecoregion. A reference site represents natural stream qualities that are least disturbed by human activities within the watershed. Reference sites are grouped by ecoregion to establish a benchmark against which these survey streams are compared.
EcoRegion Comparison
Scores for a sampling session are compared against reference sites within the same ecoregion:
There are not enough sampling sessions collected at reference sites in this ecoregion to generate a meaningful comparison.