Fin's Fish Guide
The Torrent sucker (Thoburnia rhothoeca) is a freshwater fish of the family Catostomidae that grows up to 18 cm.
Eastern North America, in rocky riffles and channels of moderately to fast-flowing streams and small rivers.
Description
The torrent sucker is a sucker (family Catostomidae) of eastern North America. The species reaches about 18 cm and has an elongate body with an inferior, fleshy sucking mouth. It inhabits rocky riffles and runs of moderate to swift creeks and small rivers; young fish stay in rocky runs and pools. With its sucking mouth it scrapes algae and small invertebrates from stones. The species is harmless to humans and, because of its small size, of no fishery value. It is an indicator of clear, fast-flowing water.
Frequently asked questions
How do you recognise the Torrent sucker?
The Torrent sucker has an elongate, eel-like body, is mainly brown and shows a plain pattern. Sucker of fast-flowing, rocky waters; scrapes algae off stones.
Where does the Torrent sucker live?
The Torrent sucker lives in fresh water and is mostly found around sand or mud bottom. Eastern North America, in rocky riffles and channels of moderately to fast-flowing streams and small rivers.
How big does the Torrent sucker get?
The Torrent sucker grows to a maximum of about 18 cm. On average the species is around 12 cm.
Is the Torrent sucker dangerous to humans?
No, the Torrent sucker is harmless to humans. None required: this species is harmless to humans.
Is the Torrent sucker edible?
The Torrent sucker is not usually eaten.
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All data
Identification
Appearance
Habitat & distribution
Behaviour & biology
For anglers
Safety
Status & sources
Same genus Thoburnia
More from the family Catostomidae
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Point your camera at the fish and Fin names the species in seconds. Free, and the Torrent sucker is one of 12,519 species in the app.