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

Stonecat Noturus flavus

Ictaluridae (Catfishes)
Trophic Class
Benthic Invertivore
Is Exotic to Iowa?
Is Lithophilous Spawner?
Is Hybrid?
State Listing Status
Not Listed
Assessment Program Statistics

This species was found at 302 bioassessment sites, 10 rapid fish bioassessment sites, 52 fisheries assessment sites, and 3 fisheries presence-only assessment sites. In total, it was collected at 358 distinct sites, or 29.5% of the 1212 total sites monitored by the bioassessment program. It is the 16th most commonly collected species.

The Stonecat was collected in 587 bioassessment sampling sessions and 89 fisheries assessment sessions. It was present in 10 rapid bioassessment sessions and 3 presence-only sessions.

The biological assessment program has collected a total of 4,825 individual Stonecat specimens, ranking it the #39 most collected fish.

Species Distribution Map