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

Buck Creek 3.5 miles west of Hopkinton (BK001)

Fish Session #663

Sample Date
7/30/2020
Timeframe
59 min
Reach Size
1640 ft
Method
Standard Wadeable
Sample Quality
Good
Last Update
1/5/2021 12:51:20 PM

Fish Health

# DELTs
0
# Non-DELTs
0

Equipment

Backpack Shockers
0
Blocknets
0
Barge Shocker
True
Boat Shocker
False
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 alert 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
58
Warm Water
Good
Session Comments

Water temperature 66 F, Secchi >36", Conductivity 500 µS/cm.

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
Western Blacknose Dace
Latin: Rhinichthys obtusus
Family: Cyprinidae
Tolerance: Intermediate
Trophic: Insectivore
Is Exotic: False
Is LithoSpawner: False
Is Hybrid: False
897
Central Stoneroller
Latin: Campostoma anomalum
Family: Cyprinidae
Tolerance: Intermediate
Trophic: Herbivore
Is Exotic: False
Is LithoSpawner: False
Is Hybrid: False
738
Bigmouth Shiner
Latin: Notropis dorsalis
Family: Cyprinidae
Tolerance: Tolerant
Trophic: Insectivore
Is Exotic: False
Is LithoSpawner: False
Is Hybrid: False
601
Common Shiner
Latin: Luxilus cornutus
Family: Cyprinidae
Tolerance: Intermediate
Trophic: Insectivore
Is Exotic: False
Is LithoSpawner: False
Is Hybrid: False
472
White Sucker
Latin: Catostomus commersonii
Family: Catostomidae
Tolerance: Intermediate
Trophic: Omnivore
Is Exotic: False
Is LithoSpawner: False
Is Hybrid: False
343
Fantail Darter
Latin: Etheostoma flabellare
Family: Percidae
Tolerance: Intermediate
Trophic: Benthic Invertivore
Is Exotic: False
Is LithoSpawner: False
Is Hybrid: False
282
Bluntnose Minnow
Latin: Pimephales notatus
Family: Cyprinidae
Tolerance: Tolerant
Trophic: Omnivore
Is Exotic: False
Is LithoSpawner: False
Is Hybrid: False
233
Creek Chub
Latin: Semotilus atromaculatus
Family: Cyprinidae
Tolerance: Tolerant
Trophic: Generalist
Is Exotic: False
Is LithoSpawner: False
Is Hybrid: False
172
Sand Shiner
Latin: Notropis stramineus
Family: Cyprinidae
Tolerance: Intermediate
Trophic: Insectivore
Is Exotic: False
Is LithoSpawner: False
Is Hybrid: False
77
Johnny Darter
Latin: Etheostoma nigrum
Family: Percidae
Tolerance: Intermediate
Trophic: Benthic Invertivore
Is Exotic: False
Is LithoSpawner: False
Is Hybrid: False
75
Fathead Minnow
Latin: Pimephales promelas
Family: Cyprinidae
Tolerance: Tolerant
Trophic: Omnivore
Is Exotic: False
Is LithoSpawner: False
Is Hybrid: False
70
Northern Hog Sucker
Latin: Hypentelium nigricans
Family: Catostomidae
Tolerance: Sensitive
Trophic: Benthic Invertivore
Is Exotic: False
Is LithoSpawner: True
Is Hybrid: False
58
Southern Redbelly Dace
Latin: Chrosomus erythrogaster
Family: Cyprinidae
Tolerance: Sensitive
Trophic: Herbivore
Is Exotic: False
Is LithoSpawner: False
Is Hybrid: False
38
Golden Redhorse
Latin: Moxostoma erythrurum
Family: Catostomidae
Tolerance: Intermediate
Trophic: Benthic Invertivore
Is Exotic: False
Is LithoSpawner: True
Is Hybrid: False
23
Hornyhead Chub
Latin: Nocomis biguttatus
Family: Cyprinidae
Tolerance: Sensitive
Trophic: Insectivore
Is Exotic: False
Is LithoSpawner: False
Is Hybrid: False
14
Stonecat
Latin: Noturus flavus
Family: Ictaluridae
Tolerance: Intermediate
Trophic: Benthic Invertivore
Is Exotic: False
Is LithoSpawner: False
Is Hybrid: False
10
Banded Darter
Latin: Etheostoma zonale
Family: Percidae
Tolerance: Sensitive
Trophic: Benthic Invertivore
Is Exotic: False
Is LithoSpawner: False
Is Hybrid: False
8
Rock Bass
Latin: Ambloplites rupestris
Family: Centrarchidae
Tolerance: Sensitive
Trophic: Top Carnivore
Is Exotic: False
Is LithoSpawner: False
Is Hybrid: False
7
Shorthead Redhorse
Latin: Moxostoma macrolepidotum
Family: Catostomidae
Tolerance: Intermediate
Trophic: Benthic Invertivore
Is Exotic: False
Is LithoSpawner: True
Is Hybrid: False
7
Green Sunfish
Latin: Lepomis cyanellus
Family: Centrarchidae
Tolerance: Tolerant
Trophic: Generalist
Is Exotic: False
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
1

FIBI Calculation Factors

Factor Value
Drainage area (mi2) 45.0000
Log(DA) 1.6532
Total Fish 4129
Fish per 500 ft 1259
Total Species 21
# Excluded Species 0
# Exotic Species 0
# LMB-BG 1
Calculation Last Updated 1/8/2021 3:02:31 PM

Fish Index of Biotic Integrity

Metric Name Value Score
Native Species 20 7.26
Sucker Species 4 7.42
Sensitive Species 5 5.3
Benthic Invertivore Species 7 7.06
Top 3 Abundance Percentage 54.15 7.13
Benthic Invertivore Percentage 11.21 2.84
Omnivore Percentage 15.65 8.5
Top Carnivore Percentage 0.17 1.37
Lithophilous Spawner Percentage 2.13 1.07
Tolerance Index 6.16 6.1
Adjusted Catch per Unit Effort 185.98 10
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 59
Min 27
This Session's Score 58
Total Reference Site Samples 137
Mean 67.77
Standard Deviation 13.85