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FishWise
Longnose Sucker

Carp & Sucker

Longnose Sucker

Catostomus catostomus

FreshwaterCatostomidaeLeast Concern

About

The Longnose Sucker is a bottom-dwelling fish characterized by its cylindrical body and a fleshy, papillose lower lip that it uses to suck up food. They are often found in clear, cold streams, rivers, and lakes, preferring habitats with gravel or rocky substrates.

Average size
12-25 inches, 1-6 lbs
Colors
Olive-brown to dark brown or black dorsally, with lighter sides and a white or silvery belly. During spawning season, males may develop a reddish or orange lateral stripe.
Diet
Primarily benthic invertebrates, algae, and detritus. They use their specialized mouth to suck up food from the bottom of the water body.
Region
Widespread across North America, including Alaska, Canada, and the northern United States, extending south into the Great Lakes region and some western states.