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

Swisher Creek Swisher

Fish Session #1359

Sample Date
9/12/2011
Timeframe
11:15-11:30  
Reach Size
560 ft
Method
Standard Wadeable
Sample Quality
Good
Last Update
4/11/2012 1:51:11 PM

Fish Health

# DELTs
0
# Non-DELTs
0

Equipment

Backpack Shockers
1
Blocknets
0
Property Access Notice

This site is on public land, such as a county park, state park, or state-managed wildlife area.

FIBI Score
3
Warm Water
Poor
Session Comments

No comments recorded.

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
Green Sunfish
Latin: Lepomis cyanellus
Family: Centrarchidae
Tolerance: Tolerant
Trophic: Generalist
Is Exotic: False
Is LithoSpawner: False
Is Hybrid: False
7
Creek Chub
Latin: Semotilus atromaculatus
Family: Leuciscidae
Tolerance: Tolerant
Trophic: Generalist
Is Exotic: False
Is LithoSpawner: False
Is Hybrid: False
5
Largemouth Bass
Latin: Micropterus nigricans
Family: Centrarchidae
Tolerance: Intermediate
Trophic: Top Carnivore-LMB Exclusion
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
1

FIBI Calculation Factors

Factor Value
Drainage area (mi2) 3.4890
Log(DA) 0.5427
Total Fish 17
Fish per 500 ft 15
Total Species 4
# Excluded Taxa 0
# Exotic Species 0
# LMB-BG 1
Calculation Last Updated 2/7/2025 2:34:30 PM

Fish Index of Biotic Integrity

Metric Name Value Score
Native Species 3 3.32
Sucker Species 0 0
Sensitive Species 0 0
Benthic Invertivore Species 0 0
Top 3 Abundance Percentage 94.12 0
Benthic Invertivore Percentage 0 0
Omnivore Percentage 0 0
Top Carnivore Percentage 0 0
Lithophilous Spawner Percentage 0 0
Tolerance Index 8.82 0
Adjusted Catch per Unit Effort 0.71 0.07
DELT Percentage Adjustment 0 0

FIBI Score Explained

Sites that score between 0 - 25 are considered poor. Fish abundance is usually lower than normal or, if fish are abundant, the collection is dominated by a few tolerant species. The number of native fish species present is low. Sensitive species and habitat specialists are absent or extremely rare. The population is dominated by just a few ubiquitous species that are tolerant of wide-ranging water quality and habitat conditions. Pioneering, introduced and/or short-lived fish species are typically the most abundant types of fish. Fish collected at poor sites often have a higher than normal occurrence of external physical anomalies.

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 3
Total Reference Site Samples 111
Mean 49.09
Standard Deviation 14.79