Skip to content
FishWise
White Sucker

Carp & Sucker

White Sucker

Catostomus commersonii

FreshwaterCatostomidaeLeast Concern

About

The White Sucker is a common freshwater fish characterized by its cylindrical body, flattened head, and downturned mouth adapted for bottom feeding. They are generally found in a variety of habitats including streams, rivers, and lakes, often congregating in large schools during spawning season.

Average size
12-20 inches, 1-3 lbs
Colors
Olive-brown to black dorsally, lighter sides, and a white or cream-colored belly. During spawning, males may develop a dark stripe along their sides and breeding tubercles on their anal fin and tail.
Diet
Primarily benthic invertebrates, algae, and detritus. They use their fleshy lips to suck up food from the bottom.
Region
Widespread throughout North America, from eastern Canada and the Great Lakes region to the Rocky Mountains and parts of the southern United States.