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

Redear Sunfish Lepomis microlophus

Family
Centrarchidae (Sunfish)
Tolerance
Intermediate
Trophic Class
Insectivore
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 4 bioassessment sites, 0 rapid fish bioassessment sites, 2 fisheries assessment sites, and 0 fisheries presence-only assessment sites. In total, it was collected at 6 distinct sites, or 0.4% of the 1442 total sites monitored by the bioassessment program. It is the 114th most commonly collected species.

The Redear Sunfish was collected in 4 bioassessment sampling sessions and 2 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 7 individual Redear Sunfish specimens, ranking it the #126 most collected fish.

Species Characteristics

A deep, slab-sided sunfish with a small mouth similar in appearance to Bluegill and Pumpkinseed. The upper jaw does not reach past the front of the eye when the mouth is closed. The dorsal fin has 10 spines and is connected to the soft dorsal fin without the presence of a notch. The pectoral fins are pointed and long. The earflap is rounded and has a thin and flexible margin. The dorsal fin is without spots, and the sides of the head do not have bluish lines as in Pumpkinseed. The back and sides are golden or light olive-green, usually marked by several dark vertical bars. But these disappear in large fish. The ear flap has a whitish border and has a prominent red or orange spot in adults, hence the name redear. The fins are greenish without spots.

Species Distribution Maps

HUC12 watersheds where this species has been found