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Longnose Sucker
Common

Longnose Sucker

Catostomus catostomus

A freshwater sucker fish with an elongated snout and downward-facing mouth adapted for bottom feeding. They have a streamlined body with small scales and are typically olive to brown in coloration.

The record

Longnose Sucker at a glance

Scientific name
Catostomus catostomus
Typical size
12-18 inches, 1-3 lbs
Water
Freshwater
Habitat
Freshwater
Rarity in the Fishdex™
Common
Where it lives

Habitat

Found in cold, clear lakes and streams throughout northern North America. They prefer rocky or gravel bottoms where they feed on algae, invertebrates, and organic matter. Rarely targeted by anglers but occasionally caught incidentally while fishing for other species.

Catch one and it is yours

Log a longnose sucker through the Cobia Camera and this entry fills in with your photo, your personal best, and the exact conditions on the day. The app also carries the slot and season rules for wherever you are standing.

How the Fishdex™ works
Questions

Longnose Sucker questions people ask

Longnose Sucker is Catostomus catostomus.

A typical longnose sucker runs 12-18 inches, 1-3 lbs. Cobia records the length and weight of every longnose sucker you log and keeps your personal best on its Fishdex entry.

Found in cold, clear lakes and streams throughout northern North America. They prefer rocky or gravel bottoms where they feed on algae, invertebrates, and organic matter. Rarely targeted by anglers but occasionally caught incidentally while fishing for other species. It is a fresh water species, filed under freshwater in the Fishdex.

Yes. Log one through the Cobia Camera and this entry fills in with your own photo, your personal best, and the conditions on the day you caught it. The app also carries the slot limits and season dates for wherever you are standing. It is free.

Free on iPhone

Tomorrow morning starts tonight

Set your home water, pick a drive radius, and wake up to a plan.

Download Cobia on the App Store Android coming soon

iPhone, iOS 17 or later. Setup takes about a minute.