Baldwin Mason Creek Mechanicsville (HW36)
Fish Session #1356
- Sample Date
- 6/23/2011
- Timeframe
- 0945-1030
- Reach Size
- 612 ft
- Method
- Standard Wadeable
- Sample Quality
- Good
- Last Update
- 4/9/2012 10:53:01 AM
This site is on public land, such as a county park, state park, or state-managed wildlife area.
Warm Water
Good
Flow slightly elevated above baseflow from rains earlier in the week
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 | |
|---|---|---|
|
Western Blacknose Dace
Latin: Rhinichthys obtusus
Family: Leuciscidae Tolerance: Intermediate Trophic: Insectivore Is Exotic: False Is LithoSpawner: False Is Hybrid: False |
40 | |
|
Green Sunfish
Latin: Lepomis cyanellus
Family: Centrarchidae Tolerance: Tolerant Trophic: Generalist Is Exotic: False Is LithoSpawner: False Is Hybrid: False |
34 | |
|
Creek Chub
Latin: Semotilus atromaculatus
Family: Leuciscidae Tolerance: Tolerant Trophic: Generalist Is Exotic: False Is LithoSpawner: False Is Hybrid: False |
15 | |
|
Mississippi Silvery Minnow
Latin: Hybognathus nuchalis
Family: Leuciscidae Tolerance: Sensitive Trophic: Omnivore Is Exotic: False Is LithoSpawner: False Is Hybrid: False |
13 | |
|
White Sucker
Latin: Catostomus commersonii
Family: Catostomidae Tolerance: Intermediate Trophic: Omnivore Is Exotic: False Is LithoSpawner: False Is Hybrid: False |
12 | |
|
Spotfin Shiner
Latin: Cyprinella spiloptera
Family: Leuciscidae Tolerance: Intermediate Trophic: Insectivore Is Exotic: False Is LithoSpawner: False Is Hybrid: False |
8 | |
|
Bluntnose Minnow
Latin: Pimephales notatus
Family: Leuciscidae Tolerance: Tolerant Trophic: Omnivore Is Exotic: False Is LithoSpawner: False Is Hybrid: False |
4 | |
|
Johnny Darter
Latin: Etheostoma nigrum
Family: Percidae Tolerance: Intermediate Trophic: Benthic Invertivore Is Exotic: False Is LithoSpawner: False Is Hybrid: False |
4 | |
|
Bigmouth Shiner
Latin: Ericymba dorsalis
Family: Leuciscidae Tolerance: Tolerant Trophic: Insectivore Is Exotic: False Is LithoSpawner: False Is Hybrid: False |
2 | |
|
Carmine Shiner
Latin: Notropis percobromus
Family: Leuciscidae Tolerance: Sensitive Trophic: Insectivore Is Exotic: False Is LithoSpawner: False Is Hybrid: False |
2 | |
|
Golden Redhorse
Latin: Moxostoma erythrurum
Family: Catostomidae Tolerance: Intermediate Trophic: Benthic Invertivore Is Exotic: False Is LithoSpawner: True Is Hybrid: False |
2 | |
|
Shorthead Redhorse
Latin: Moxostoma macrolepidotum
Family: Catostomidae Tolerance: Intermediate Trophic: Benthic Invertivore Is Exotic: False Is LithoSpawner: True Is Hybrid: False |
2 | |
|
Redhorse spp.
Latin: Moxostoma spp.
Family: Catostomidae Tolerance: N/A Trophic: Benthic Invertivore Is Exotic: False Is LithoSpawner: False Is Hybrid: False |
1 | [X] |
|
Mud Darter
Latin: Etheostoma asprigene
Family: Percidae Tolerance: Intermediate Trophic: Benthic Invertivore Is Exotic: False Is LithoSpawner: False Is Hybrid: False |
1 |
FIBI Calculation Factors
| Factor | Value |
|---|---|
| Drainage area (mi2) | 10.4000 |
| Log(DA) | 1.0170 |
| Total Fish | 140 |
| Fish per 500 ft | 114 |
| Total Species | 14 |
| # Excluded Taxa | 1 |
| # Exotic Species | 0 |
| # LMB-BG | 0 |
| Calculation Last Updated | 2/7/2025 2:34:29 PM |
Fish Index of Biotic Integrity
| Metric Name | Value | Score |
|---|---|---|
| Native Species | 13 | 7.67 |
| Sucker Species | 3 | 9.05 |
| Sensitive Species | 2 | 3.44 |
| Benthic Invertivore Species | 4 | 6.56 |
| Top 3 Abundance Percentage | 63.57 | 9.18 |
| Benthic Invertivore Percentage | 7.14 | 2.94 |
| Omnivore Percentage | 20.71 | 9.72 |
| Top Carnivore Percentage | 0 | 0 |
| Lithophilous Spawner Percentage | 2.86 | 2.34 |
| Tolerance Index | 6.44 | 5.65 |
| Adjusted Catch per Unit Effort | 13.73 | 1.37 |
| DELT Percentage Adjustment | 0.71 | 0 |
FIBI Score Explained
Sites that score between 51 - 70 are considered good. Fish (excluding tolerant species) are fairly abundant to very abundant. If high numbers are present, intermediately tolerant species or tolerant species are usually dominant. A moderately high number of fish species belonging to several families are present. The three most abundant fish species typically comprise two-thirds or less of the total number of fish. Several long-lived species and benthic invertivore species are present. One or more sensitive species are usually present. Top carnivore species are usually present in low numbers and often one or more life stages are missing. Species that require silt-free, rock substrate for spawning or feeding are present in low proportion to the total number of fish. Fish condition is good; typically less than 1% of the total number of fish exhibits external anomalies associated with disease or stress.
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:
| Max | 83 |
| 75th Percentile | 59 |
| Median | 48 |
| 25th Percentile | 38 |
| Min | 10 |
| This Session's Score | 53 |
| Total Reference Site Samples | 105 |
| Mean | 49.02 |
| Standard Deviation | 14.97 |