Semolitus atromaculatus(Mitchill, 1818)
member of the Minnow Family (Cyprinidae)
Vermillion River, Dakota County, Minnesota 3 October 1998
photos by Konrad Schmidt
In a Name?
(she-mott´-ill-us) made up from Greek words meaning, "banner" and "spotted"
refers to the dorsal fin with its black spot
Do They Live?
Creek chubs occur in all the major drainages of Minnesota. They prefer small to moderate size streams and rivers, as opposed to large rivers and lakes. They are tolerant of turbid (cloudy) water but favor clear to faintly cloudy waters over hard bottoms (gravel, sand, or rubble) rather than soft (silt and mud). They do especially well behind beaver dams. Creek chub commonly live with white suckers, central stonerollers, bluntnose minnows, and bigmouth shiners to name a few species.
Big Do They Get?
Do They Eat?
Almost all Minnesota fish begin eating small copepods and waterfleas from the water column as larvae. So do creek chubs, but they soon begin foraging in vegetation for larval insects. As they grow, they add a greater variety of aquatic insect larvae, terrestrial (land) insect, and eventually small fish. Because they eat so many different items from different places in their habitat, they are said to be opportunistic feeders.
Do They Reproduce?
Permission is granted for the non-commercial educational or scientific use of the text and images on this Web document. Please credit the author or authors listed below.
Photographs by Konrad P. Schmidt
Text by Nicole Paulson & Jay T. Hatch in cooperation with
the Minnesota Department of Natural Resources' MinnAqua Aquatic Program
This page developed with funds from the
MinnAqua Program (Minnesota Department of Natural Resources, Division of Fisheries)
Sport Fish Restoration Program (Fish and Wildlife Service, US Department of the Interior)
Maintained by Jay T. Hatch
General College and James Ford Bell Museum of Natural History
University of Minnesota, Minneapolis/St. Paul
Last updated 23 October 2002