Walnut Creek Neal Smith NWR - Combined WNT2 & WNTBM2
Fish Session #613
- Sample Date
- 9/21/2004
- Timeframe
- Unspecified
- Reach Size
- 500 ft
- Method
- Standard Wadeable
- Sample Quality
- Good
- Last Update
- 11/30/2004 12:00:00 AM
This site is on public land, such as a county park, state park, or state-managed wildlife area.
Warm Water
Poor
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 | |
|---|---|---|
|
Creek Chub
Latin: Semotilus atromaculatus
Family: Leuciscidae Tolerance: Tolerant Trophic: Generalist Is Exotic: False Is LithoSpawner: False Is Hybrid: False |
44 | |
|
Bigmouth Shiner
Latin: Ericymba dorsalis
Family: Leuciscidae Tolerance: Tolerant Trophic: Insectivore Is Exotic: False Is LithoSpawner: False Is Hybrid: False |
29 | |
|
Bluntnose Minnow
Latin: Pimephales notatus
Family: Leuciscidae Tolerance: Tolerant Trophic: Omnivore Is Exotic: False Is LithoSpawner: False Is Hybrid: False |
22 | |
|
Green Sunfish
Latin: Lepomis cyanellus
Family: Centrarchidae Tolerance: Tolerant Trophic: Generalist Is Exotic: False Is LithoSpawner: False Is Hybrid: False |
14 | |
|
White Sucker
Latin: Catostomus commersonii
Family: Catostomidae Tolerance: Intermediate Trophic: Omnivore Is Exotic: False Is LithoSpawner: False Is Hybrid: False |
6 | |
|
Fathead Minnow
Latin: Pimephales promelas
Family: Leuciscidae Tolerance: Tolerant Trophic: Omnivore Is Exotic: False Is LithoSpawner: False Is Hybrid: False |
4 | |
|
Sand Shiner
Latin: Miniellus stramineus
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 | |
|
Suckermouth Minnow
Latin: Phenacobius mirabilis
Family: Leuciscidae Tolerance: Intermediate Trophic: Benthic Invertivore Is Exotic: False Is LithoSpawner: True Is Hybrid: False |
1 | |
|
Yellow Bullhead
Latin: Ameiurus natalis
Family: Ictaluridae Tolerance: Intermediate Trophic: Benthic Invertivore Is Exotic: False Is LithoSpawner: False Is Hybrid: False |
1 |
FIBI Calculation Factors
| Factor | Value |
|---|---|
| Drainage area (mi2) | 20.2180 |
| Log(DA) | 1.3057 |
| Total Fish | 126 |
| Fish per 500 ft | 126 |
| Total Species | 10 |
| # Excluded Taxa | 0 |
| # Exotic Species | 0 |
| # LMB-BG | 0 |
| Calculation Last Updated | 2/7/2025 2:31:59 PM |
Fish Index of Biotic Integrity
| Metric Name | Value | Score |
|---|---|---|
| Native Species | 10 | 4.59 |
| Sucker Species | 1 | 2.35 |
| Sensitive Species | 0 | 0 |
| Benthic Invertivore Species | 2 | 2.55 |
| Top 3 Abundance Percentage | 75.4 | 4.83 |
| Benthic Invertivore Percentage | 1.59 | 0.51 |
| Omnivore Percentage | 25.4 | 7.82 |
| Top Carnivore Percentage | 0 | 0 |
| Lithophilous Spawner Percentage | 0.79 | 0.5 |
| Tolerance Index | 9.48 | 0.83 |
| Adjusted Catch per Unit Effort | 2.6 | 0.26 |
| DELT Percentage Adjustment | 1.59 | 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:
| Max | 83 |
| 75th Percentile | 59 |
| Median | 48 |
| 25th Percentile | 38 |
| Min | 10 |
| This Session's Score | 22 |
| Total Reference Site Samples | 105 |
| Mean | 49.02 |
| Standard Deviation | 14.97 |