Fin's Fish Guide
The Bluehead sucker (Catostomus discobolus) is a freshwater fish of the family Catostomidae that grows up to 41 cm.
Description
The bluehead sucker is a sucker (Catostomidae) from clear, flowing rivers of western North America, including the Colorado drainage. The species grows to about 41 cm and has an elongate, dark body; breeding males develop a bluish-coloured head. The inferior, fleshy sucking mouth has a horny edge with which it scrapes algae and growth from stones. As a bottom-oriented grazer it eats aufwuchs, algae and detritus. The fish is harmless to humans.
Frequently asked questions
How do you recognise the Bluehead sucker?
The Bluehead sucker has an elongate, eel-like body and is mainly brown.
Where does the Bluehead sucker live?
The Bluehead sucker lives in fresh water and is mostly found around sand or mud bottom. North America: USA
How big does the Bluehead sucker get?
The Bluehead sucker grows to a maximum of about 41 cm.
Is the Bluehead sucker dangerous to humans?
No, the Bluehead sucker is harmless to humans. This species is harmless to humans. No specific first aid is needed. Still handle the fish with care: mind the fin rays and the sharp edges of the gill cover, and rinse any scratch with clean water and cover it. For a dirty or deep wound check tetanus status.
More photos
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All data
Identification
Appearance
Habitat & distribution
Behaviour & biology
For anglers
Safety
Status & sources
Same genus Catostomus
More from the family Catostomidae
Want the complete picture on the Bluehead sucker?
Point your camera at the fish and Fin names the species in seconds. Free, and the Bluehead sucker is one of 12,519 species in the app.