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

Wapsipinicon River Central City (REMAP #207)

Fish Session #923

Sample Date
9/27/2006
Timeframe
10:50  
Reach Size
3281 ft
Method
Non-wadeable
Sample Quality
Good
Last Update
4/20/2007 12:00:00 AM

Fish Health

# DELTs
6
# Non-DELTs
2

Equipment

Backpack Shockers
1
Blocknets
0
Boat Shocker
True
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
65
Warm Water
Good
Session Comments

upper: 629282 4668704 lower: 629909 4668168 shocking times: UL-18:18 UR-14:58 LL-17:04 LR-26:54 Supplemental backpack shocking was 17:26. Could have shocked longer, but monotonous habitat.

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
Spotfin Shiner
Latin: Cyprinella spiloptera
Family: Leuciscidae
Tolerance: Intermediate
Trophic: Insectivore
Is Exotic: False
Is LithoSpawner: False
Is Hybrid: False
462
Shorthead Redhorse
Latin: Moxostoma macrolepidotum
Family: Catostomidae
Tolerance: Intermediate
Trophic: Benthic Invertivore
Is Exotic: False
Is LithoSpawner: True
Is Hybrid: False
229
Sand Shiner
Latin: Miniellus stramineus
Family: Leuciscidae
Tolerance: Intermediate
Trophic: Insectivore
Is Exotic: False
Is LithoSpawner: False
Is Hybrid: False
163
Golden Redhorse
Latin: Moxostoma erythrurum
Family: Catostomidae
Tolerance: Intermediate
Trophic: Benthic Invertivore
Is Exotic: False
Is LithoSpawner: True
Is Hybrid: False
71
Northern Hog Sucker
Latin: Hypentelium nigricans
Family: Catostomidae
Tolerance: Sensitive
Trophic: Benthic Invertivore
Is Exotic: False
Is LithoSpawner: True
Is Hybrid: False
44
Smallmouth Bass
Latin: Micropterus dolomieu
Family: Centrarchidae
Tolerance: Sensitive
Trophic: Top Carnivore
Is Exotic: False
Is LithoSpawner: False
Is Hybrid: False
43
Quillback Carpsucker
Latin: Carpiodes cyprinus
Family: Catostomidae
Tolerance: Intermediate
Trophic: Omnivore
Is Exotic: False
Is LithoSpawner: False
Is Hybrid: False
40
Bluntnose Minnow
Latin: Pimephales notatus
Family: Leuciscidae
Tolerance: Tolerant
Trophic: Omnivore
Is Exotic: False
Is LithoSpawner: False
Is Hybrid: False
27
Green Sunfish
Latin: Lepomis cyanellus
Family: Centrarchidae
Tolerance: Tolerant
Trophic: Generalist
Is Exotic: False
Is LithoSpawner: False
Is Hybrid: False
18
Channel Catfish
Latin: Ictalurus punctatus
Family: Ictaluridae
Tolerance: Intermediate
Trophic: Top Carnivore
Is Exotic: False
Is LithoSpawner: False
Is Hybrid: False
17
Silver Redhorse
Latin: Moxostoma anisurum
Family: Catostomidae
Tolerance: Intermediate
Trophic: Benthic Invertivore
Is Exotic: False
Is LithoSpawner: True
Is Hybrid: False
14
Johnny Darter
Latin: Etheostoma nigrum
Family: Percidae
Tolerance: Intermediate
Trophic: Benthic Invertivore
Is Exotic: False
Is LithoSpawner: False
Is Hybrid: False
12
Banded Darter
Latin: Etheostoma zonale
Family: Percidae
Tolerance: Sensitive
Trophic: Benthic Invertivore
Is Exotic: False
Is LithoSpawner: False
Is Hybrid: False
12
Bullhead Minnow
Latin: Pimephales vigilax
Family: Leuciscidae
Tolerance: Intermediate
Trophic: Omnivore
Is Exotic: False
Is LithoSpawner: False
Is Hybrid: False
10
Walleye
Latin: Sander vitreus
Family: Percidae
Tolerance: Intermediate
Trophic: Top Carnivore
Is Exotic: False
Is LithoSpawner: False
Is Hybrid: False
10
Highfin Carpsucker
Latin: Carpiodes velifer
Family: Catostomidae
Tolerance: Intermediate
Trophic: Omnivore
Is Exotic: False
Is LithoSpawner: False
Is Hybrid: False
9
Suckermouth Minnow
Latin: Phenacobius mirabilis
Family: Leuciscidae
Tolerance: Intermediate
Trophic: Benthic Invertivore
Is Exotic: False
Is LithoSpawner: True
Is Hybrid: False
6
Redhorse spp.
Latin: Moxostoma spp.
Family: Catostomidae
Tolerance: N/A
Trophic: Benthic Invertivore
Is Exotic: False
Is LithoSpawner: False
Is Hybrid: False
5 [X]
Bigmouth Shiner
Latin: Ericymba dorsalis
Family: Leuciscidae
Tolerance: Tolerant
Trophic: Insectivore
Is Exotic: False
Is LithoSpawner: False
Is Hybrid: False
4
River Carpsucker
Latin: Carpiodes carpio
Family: Catostomidae
Tolerance: Intermediate
Trophic: Omnivore
Is Exotic: False
Is LithoSpawner: False
Is Hybrid: False
3
Brassy Minnow
Latin: Hybognathus hankinsoni
Family: Leuciscidae
Tolerance: Intermediate
Trophic: Herbivore
Is Exotic: False
Is LithoSpawner: False
Is Hybrid: False
2
Largemouth Bass
Latin: Micropterus nigricans
Family: Centrarchidae
Tolerance: Intermediate
Trophic: Top Carnivore-LMB Exclusion
Is Exotic: False
Is LithoSpawner: False
Is Hybrid: False
2
Carpsucker spp.
Latin: Carpiodes spp.
Family: Catostomidae
Tolerance: Intermediate
Trophic: Omnivore
Is Exotic: False
Is LithoSpawner: False
Is Hybrid: False
2 [X]
Emerald Shiner
Latin: Notropis atherinoides
Family: Leuciscidae
Tolerance: Intermediate
Trophic: Insectivore
Is Exotic: False
Is LithoSpawner: False
Is Hybrid: False
1
Blackside Darter
Latin: Percina maculata
Family: Percidae
Tolerance: Sensitive
Trophic: Benthic Invertivore
Is Exotic: False
Is LithoSpawner: False
Is Hybrid: False
1
Collection Notes
[X] = Excluded from species count metrics

FIBI Calculation Factors

Factor Value
Drainage area (mi2) 1306.1650
Log(DA) 3.1160
Total Fish 1207
Fish per 500 ft 184
Total Species 25
# Excluded Taxa 2
# Exotic Species 0
# LMB-BG 1
Calculation Last Updated 2/7/2025 2:33:10 PM

Fish Index of Biotic Integrity

Metric Name Value Score
Native Species 22 6.29
Sucker Species 7 8.75
Sensitive Species 4 3.33
Benthic Invertivore Species 8 6.67
Top 3 Abundance Percentage 70.75 4.55
Benthic Invertivore Percentage 32.64 5.37
Omnivore Percentage 7.54 9.57
Top Carnivore Percentage 5.8 4.82
Lithophilous Spawner Percentage 30.16 10
Tolerance Index 4.79 8.27
Adjusted Catch per Unit Effort 35.14 3.51
DELT Percentage Adjustment 0.5 0
Large River IBI

The Fish Index of Biotic Integrity for Large River sampling sessions is currently calculated using the standard wadeable stream FIBI metrics. The IBI scores for Large River sessions are typically lower than those calculated for wadeable streams, but are included for comparison purposes.

Large Rivers score lower due to the difficulty of sampling deep rivers. Boat shockers are also selective towards larger fish species, as it is more difficult to collect smaller fish species, such as minnows, in the deeper water.

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 65
Total Reference Site Samples 139
Mean 67.86
Standard Deviation 13.98