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

Mud Darter Etheostoma asprigene

MUD
Family
Percidae (Perches)
Tolerance
Intermediate
Trophic Class
Benthic Invertivore
Is Exotic to Iowa?
False
Is Lithophilous Spawner?
False
Is Hybrid?
False
State Listing Status
Not Listed
Assessment Program Statistics

This species was found at 32 bioassessment sites, 0 rapid fish bioassessment sites, 0 fisheries assessment sites, and 0 fisheries presence-only assessment sites. In total, it was collected at 32 distinct sites, or 2.1% of the 1522 total sites monitored by the bioassessment program. It is the 76th most commonly collected species.

The Mud Darter was collected in 55 bioassessment sampling sessions and 0 fisheries assessment sessions. It was present in 0 rapid bioassessment sessions and 0 presence-only sessions.

The biological assessment program has collected a total of 321 individual Mud Darter specimens, ranking it the #82 most collected fish.

Species Distribution Maps

Taxonomic Distribution Through Time

Sampling Program
Bioassessment
FishNet
Rapid Bioassessment
Esri, USGS | Iowa DNR, Esri, TomTom, Garmin, FAO, NOAA, USGS, EPA, NPS, USFWS | IADNR BioNet
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1/1/1994
1/1/2026
1/1/1994
1994
1996
1998
2000
2002
2004
2006
2008
2010
2012
2014
2016
2018
2020
2022
2024
2026
1/1/2026

HUC12 watersheds where this species has been found

Esri, USGS | County of Story, Iowa DNR, Esri, TomTom, Garmin, FAO, NOAA, USGS, EPA, NPS, USFWS
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