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

Silver Redhorse Moxostoma anisurum

Catostomidae (Suckers)
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 50 bioassessment sites, 0 rapid fish bioassessment sites, 45 fisheries assessment sites, and 1 fisheries presence-only assessment site. In total, it was collected at 94 distinct sites, or 6.5% of the 1442 total sites monitored by the bioassessment program. It is the 52nd most commonly collected species.

The Silver Redhorse was collected in 79 bioassessment sampling sessions and 79 fisheries assessment sessions. It was present in 0 rapid bioassessment sessions and 1 presence-only session.

The biological assessment program has collected a total of 2,097 individual Silver Redhorse specimens, ranking it the #52 most collected fish.

Species Distribution Maps

HUC12 watersheds where this species has been found