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

Grass Carp Ctenopharyngodon idella

Family
Cyprinidae (Minnows)
Tolerance
Intermediate
Trophic Class
Herbivore
Is Exotic to Iowa?
True
Is Lithophilous Spawner?
False
Is Hybrid?
False
State Listing Status
Not Listed
Assessment Program Statistics

This species was found at 11 bioassessment sites, 0 rapid fish bioassessment sites, 3 fisheries assessment sites, and 0 fisheries presence-only assessment sites. In total, it was collected at 14 distinct sites, or 1.2% of the 1177 total sites monitored by the bioassessment program. It is the 88th most commonly collected species.

The Grass Carp was collected in 12 bioassessment sampling sessions and 3 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 23 individual Grass Carp specimens, ranking it the #109 most collected fish.

Species Distribution Map