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

Walleye Sander vitreus

Percidae (Perches)
Trophic Class
Top Carnivore
Is Exotic to Iowa?
Is Lithophilous Spawner?
Is Hybrid?
State Listing Status
Not Listed
Assessment Program Statistics

This species was found at 83 bioassessment sites, 0 rapid fish bioassessment sites, 67 fisheries assessment sites, and 0 fisheries presence-only assessment sites. In total, it was collected at 150 distinct sites, or 12.1% of the 1236 total sites monitored by the bioassessment program. It is the 37th most commonly collected species.

The Walleye was collected in 105 bioassessment sampling sessions and 221 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 4,108 individual Walleye specimens, ranking it the #43 most collected fish.

Species Distribution Map