Iowa DNR
BioNet
River & Stream Biological Monitoring
Fish and Benthic Macroinvertebrate Surveys
Physical Habitat Assessments

Unnamed tributary to Ten Mile Creek E of Ridgeway (UI_TMC_09)

Fish Session #885

Sample Date
9/13/2023
Timeframe
20 min.
Reach Size
984 ft
Method
Standard Wadeable
Sample Quality
Good
Last Update
1/23/2024 2:56:37 PM

Fish Health

# DELTs
0
# Non-DELTs
0

Equipment

Backpack Shockers
1
Blocknets
0
This sampling session was collected as part of the FishNet program.
Notice: This sampling session has not been through a Quality Assurance check and may contain errors. This notice will be removed once the QA has been completed.
Property Access Notice

This site is on privately-owned land. The DNR obtains permission from the landowner(s) prior to conducting any sampling surveys.

FIBI Score
66
Warm Water
Good
Session Comments

Part of the Cold Water project. Water temperature 61 F, Conductivity 460 µS/cm. Secchi >36". The fish survey was completed in 3 runs, these runs correspond to the same locations of the runs for the habitat survey. In run 1 we sampled 27 White Suckers, 87 Creek Chubs, 17 Stoneroller Spp., 36 Western Blacknose Dace, 7 Green Sunfish, 58 Fathead Minnows, 6 Bluntnose Minnows, 1 Common Shiner, 2 Southern Redbelly Dace, 6 Bigmouth Shiners, 3 Fantail Darters, 5 Johnny Darters, run 2 included 12 White Suckers, 67 Creek Chubs, 1 Stoneroller Spp., 18 Western Blacknose Dace, 16 Fathead Minnows, 1 Bluntnose Minnows, 2 Bigmouth Shiners, 1 Fantail Darter, and 15 Johnny Darters, run 3 contained 14 White Suckers, 64 Creek Chubs, 15 Western Blacknose Dace, 10 Fathead Minnows, and 10 Johnny Darters . This survey represents the total from all of the runs combined. All white suckers sampled were less than 6".

Collected Fish

Identity verification status for this species
Morphometrics: Length/Weight measurements of individual specimens
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
218
Fathead Minnow
Latin: Pimephales promelas
Family: Leuciscidae
Tolerance: Tolerant
Trophic: Omnivore
Is Exotic: False
Is LithoSpawner: False
Is Hybrid: False
84
Western Blacknose Dace
Latin: Rhinichthys obtusus
Family: Leuciscidae
Tolerance: Intermediate
Trophic: Insectivore
Is Exotic: False
Is LithoSpawner: False
Is Hybrid: False
69
White Sucker
Latin: Catostomus commersonii
Family: Catostomidae
Tolerance: Intermediate
Trophic: Omnivore
Is Exotic: False
Is LithoSpawner: False
Is Hybrid: False
53
Johnny Darter
Latin: Etheostoma nigrum
Family: Percidae
Tolerance: Intermediate
Trophic: Benthic Invertivore
Is Exotic: False
Is LithoSpawner: False
Is Hybrid: False
30
Stoneroller spp.
Latin: Campostoma spp.
Family: Leuciscidae
Tolerance: N/A
Trophic: Herbivore
Is Exotic: False
Is LithoSpawner: False
Is Hybrid: False
18
Bigmouth Shiner
Latin: Ericymba dorsalis
Family: Leuciscidae
Tolerance: Tolerant
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
Bluntnose Minnow
Latin: Pimephales notatus
Family: Leuciscidae
Tolerance: Tolerant
Trophic: Omnivore
Is Exotic: False
Is LithoSpawner: False
Is Hybrid: False
7
Fantail Darter
Latin: Etheostoma flabellare
Family: Percidae
Tolerance: Intermediate
Trophic: Benthic Invertivore
Is Exotic: False
Is LithoSpawner: False
Is Hybrid: False
4
Southern Redbelly Dace
Latin: Chrosomus erythrogaster
Family: Leuciscidae
Tolerance: Sensitive
Trophic: Herbivore
Is Exotic: False
Is LithoSpawner: False
Is Hybrid: False
2
Common Shiner
Latin: Luxilus cornutus
Family: Leuciscidae
Tolerance: Intermediate
Trophic: Insectivore
Is Exotic: False
Is LithoSpawner: False
Is Hybrid: False
1

FIBI Calculation Factors

Factor Value
Drainage area (mi2) 1.5900
Log(DA) 0.2014
Total Fish 501
Fish per 500 ft 255
Total Species 12
# Excluded Species 0
# Exotic Species 0
# LMB-BG 0
Calculation Last Updated 6/20/2024 11:30:21 AM

Fish Index of Biotic Integrity

Metric Name Value Score
Native Species 12 10
Sucker Species 1 10
Sensitive Species 1 8.7
Benthic Invertivore Species 2 10
Top 3 Abundance Percentage 74.05 10
Benthic Invertivore Percentage 6.79 10
Omnivore Percentage 28.74 10
Top Carnivore Percentage 0 0
Lithophilous Spawner Percentage 0 0
Tolerance Index 8.33 2.65
Adjusted Catch per Unit Effort 16.16 1.62
DELT Percentage Adjustment 0 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 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:

Iowan Surface

This site is in the Iowan Surface ecoregion.

Ecoregion Map
Max 92
75th Percentile 77
Median 70
25th Percentile 60
Min 27
This Session's Score 66
Total Reference Site Samples 142
Mean 67.8
Standard Deviation 13.91