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

Banded Killifish Fundulus diaphanus

Family
Fundulidae (Topminnows)
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 2 bioassessment sites, 1 rapid fish bioassessment site, 1 fisheries assessment site, and 0 fisheries presence-only assessment sites. In total, it was collected at 4 distinct sites, or 0.3% of the 1513 total sites monitored by the bioassessment program. It is the 116th most commonly collected species.

The Banded Killifish was collected in 2 bioassessment sampling sessions and 1 fisheries assessment session. It was present in 1 rapid bioassessment session and 0 presence-only sessions.

The biological assessment program has collected a total of 30 individual Banded Killifish specimens, ranking it the #110 most collected fish.

Species Characteristics

A slender-bodied and laterally compressed topminnow. The snout is bluntly pointed, and the mouth is small, slanted and opens dorsally. It has a projecting lower jaw with very small teeth in bands on both jaws. The dorsal fin is far posterior on the back, originating in front of the anal fin, and has 10 to 13 rays. The anal fin has 9 to ll rays, pelvic fin 6 rays, and the caudal fin is rounded. A lateral line is absent, and there are 39 to 43 cycloid scales in the lateral series. The body is light olive on the back and sides and yellow-white below. There are usually 12 to 20 narrow vertical bars on the body. Adults average 2 or more inches long.

Species Distribution Maps

HUC12 watersheds where this species has been found