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

English River N of Wellman (EN001)

Fish Session #177

Sample Date
8/9/2002
Timeframe
95.0
Reach Size
2582 ft
Method
Fisheries Non-wadeable
Sample Quality
Good
Last Update
1/25/2016 3:22:42 PM

Fish Health

# DELTs
0
# Non-DELTs
0

Equipment

Backpack Shockers
1
Blocknets
0
Boat Shocker
True
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
34
Warm Water
Fair
Session Comments

Secchi 9", Conductivity 370. Supplemental probe shocked for 26 minutes (time not included in total). Sampled: 2 channel catfish, 2 flathead catfish, 2 slenderhead darters, 1 gizzard shad, 1 green sunfish, 1 shorthead redhorse, 2 suckermouth minnows, 3 bullhead minnows, 11 bluntnose minnows, 4 sand shiners, 4 bigmouth shiners and 68 spotfin shiners. These fish are included in the data.

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
Spotfin Shiner
Latin: Cyprinella spiloptera
Family: Leuciscidae
Tolerance: Intermediate
Trophic: Insectivore
Is Exotic: False
Is LithoSpawner: False
Is Hybrid: False
86
Common Carp
Latin: Cyprinus carpio
Family: Cyprinidae
Tolerance: Tolerant
Trophic: Omnivore
Is Exotic: True
Is LithoSpawner: False
Is Hybrid: False
60
Gizzard Shad
Latin: Dorosoma cepedianum
Family: Dorosomatidae
Tolerance: Tolerant
Trophic: Omnivore
Is Exotic: False
Is LithoSpawner: False
Is Hybrid: False
56
River Carpsucker
Latin: Carpiodes carpio
Family: Catostomidae
Tolerance: Intermediate
Trophic: Omnivore
Is Exotic: False
Is LithoSpawner: False
Is Hybrid: False
15
Bluntnose Minnow
Latin: Pimephales notatus
Family: Leuciscidae
Tolerance: Tolerant
Trophic: Omnivore
Is Exotic: False
Is LithoSpawner: False
Is Hybrid: False
12
Smallmouth Buffalo
Latin: Ictiobus bubalus
Family: Catostomidae
Tolerance: Intermediate
Trophic: Omnivore
Is Exotic: False
Is LithoSpawner: False
Is Hybrid: False
8
Channel Catfish
Latin: Ictalurus punctatus
Family: Ictaluridae
Tolerance: Intermediate
Trophic: Top Carnivore
Is Exotic: False
Is LithoSpawner: False
Is Hybrid: False
7
Bigmouth Buffalo
Latin: Ictiobus cyprinellus
Family: Catostomidae
Tolerance: Intermediate
Trophic: Insectivore
Is Exotic: False
Is LithoSpawner: False
Is Hybrid: False
5
Bigmouth Shiner
Latin: Ericymba dorsalis
Family: Leuciscidae
Tolerance: Tolerant
Trophic: Insectivore
Is Exotic: False
Is LithoSpawner: False
Is Hybrid: False
4
Bluegill
Latin: Lepomis macrochirus
Family: Centrarchidae
Tolerance: Intermediate
Trophic: Insectivore
Is Exotic: False
Is LithoSpawner: False
Is Hybrid: False
4
Flathead Catfish
Latin: Pylodictis olivaris
Family: Ictaluridae
Tolerance: Intermediate
Trophic: Top Carnivore
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
4
Slenderhead Darter
Latin: Percina phoxocephala
Family: Percidae
Tolerance: Sensitive
Trophic: Benthic Invertivore
Is Exotic: False
Is LithoSpawner: False
Is Hybrid: False
4
Bullhead Minnow
Latin: Pimephales vigilax
Family: Leuciscidae
Tolerance: Intermediate
Trophic: Omnivore
Is Exotic: False
Is LithoSpawner: False
Is Hybrid: False
3
Black Buffalo
Latin: Ictiobus niger
Family: Catostomidae
Tolerance: Intermediate
Trophic: Insectivore
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
2
Black Crappie
Latin: Pomoxis nigromaculatus
Family: Centrarchidae
Tolerance: Intermediate
Trophic: Top Carnivore
Is Exotic: False
Is LithoSpawner: False
Is Hybrid: False
1
Emerald Bowfin
Latin: Amia ocellicauda
Family: Amiidae
Tolerance: Intermediate
Trophic: Top Carnivore
Is Exotic: False
Is LithoSpawner: False
Is Hybrid: False
1
Freshwater Drum
Latin: Aplodinotus grunniens
Family: Sciaenidae
Tolerance: Intermediate
Trophic: Benthic Invertivore
Is Exotic: False
Is LithoSpawner: False
Is Hybrid: False
1
Grass Carp
Latin: Ctenopharyngodon idella
Family: Xenocyprididae
Tolerance: Intermediate
Trophic: Herbivore
Is Exotic: True
Is LithoSpawner: False
Is Hybrid: False
1
Green Sunfish
Latin: Lepomis cyanellus
Family: Centrarchidae
Tolerance: Tolerant
Trophic: Generalist
Is Exotic: False
Is LithoSpawner: False
Is Hybrid: False
1
Highfin Carpsucker
Latin: Carpiodes velifer
Family: Catostomidae
Tolerance: Intermediate
Trophic: Omnivore
Is Exotic: False
Is LithoSpawner: False
Is Hybrid: False
1
Shorthead Redhorse
Latin: Moxostoma macrolepidotum
Family: Catostomidae
Tolerance: Intermediate
Trophic: Benthic Invertivore
Is Exotic: False
Is LithoSpawner: True
Is Hybrid: False
1
Silver Chub
Latin: Macrhybopsis storeriana
Family: Leuciscidae
Tolerance: Intermediate
Trophic: Insectivore
Is Exotic: False
Is LithoSpawner: False
Is Hybrid: False
1
Smallmouth Bass
Latin: Micropterus dolomieu
Family: Centrarchidae
Tolerance: Sensitive
Trophic: Top Carnivore
Is Exotic: False
Is LithoSpawner: False
Is Hybrid: False
1
Walleye
Latin: Sander vitreus
Family: Percidae
Tolerance: Intermediate
Trophic: Top Carnivore
Is Exotic: False
Is LithoSpawner: False
Is Hybrid: False
1
White Crappie
Latin: Pomoxis annularis
Family: Centrarchidae
Tolerance: Intermediate
Trophic: Top Carnivore
Is Exotic: False
Is LithoSpawner: False
Is Hybrid: False
1

FIBI Calculation Factors

Factor Value
Drainage area (mi2) 460.0000
Log(DA) 2.6628
Total Fish 287
Fish per 500 ft 56
Total Species 27
# Excluded Species 0
# Exotic Species 2
# LMB-BG 1
Calculation Last Updated 6/20/2024 10:22:51 AM

Fish Index of Biotic Integrity

Metric Name Value Score
Native Species 24 6.86
Sucker Species 6 7.5
Sensitive Species 2 1.67
Benthic Invertivore Species 4 3.33
Top 3 Abundance Percentage 70.38 4.6
Benthic Invertivore Percentage 2.79 0.46
Omnivore Percentage 54.01 3.43
Top Carnivore Percentage 5.57 4.72
Lithophilous Spawner Percentage 1.05 0.35
Tolerance Index 7.23 4.4
Adjusted Catch per Unit Effort 5.93 0.59
DELT Percentage Adjustment 0 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 26 - 50 are considered fair. Fish abundance ranges from lower than average to very abundant. If fish are abundant, tolerant species are usually dominant. Native fish species usually equal ten or more species. The three most abundant species typically comprise two-thirds or more of the total number of fish. One or more sensitive species, long-lived fish species or benthic habitat specialists such as suckers (Catostomidae) are present. Top carnivore species are often, but not always present in low abundance. Species that are able to utilize a wide range of food items including plant, animal and detritus are usually more common than specialized feeders, such as benthic invertivore fish. Species that require silt-free, rock substrate for spawning or feeding are typically rare or absent. Fish condition is usually good; however, elevated levels of fish exhibiting external anomalies associated with disease or stress are not unusual.

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:

Rolling Loess Prairies

This site is in the Rolling Loess Prairies ecoregion.

Ecoregion Map
Max 83
75th Percentile 58
Median 48
25th Percentile 40
Min 10
This Session's Score 34
Total Reference Site Samples 111
Mean 49.09
Standard Deviation 14.79