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

Silver Lamprey Ichthyomyzon unicuspis

Family
Petromyzontidae (Lampreys)
Tolerance
Sensitive
Trophic Class
Parasite
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 0 bioassessment sites, 0 rapid fish bioassessment sites, 3 fisheries assessment sites, and 0 fisheries presence-only assessment sites. In total, it was collected at 3 distinct sites, or 0.2% of the 1559 total sites monitored by the bioassessment program. It is the 121st most commonly collected species.

The Silver Lamprey was collected in 0 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 4 individual Silver Lamprey specimens, ranking it the #132 most collected fish.

Species Distribution Maps

HUC12 watersheds where this species has been found