Brown Bullhead Catfish

North America

General description

Scale-less dark brown to olive-green fish, eight whiskery barbels around mouth. Can grow up to 25-50 cm long.

What you need to know

To help protect our environment:

Lakes, slow-moving water bodies, streams, drainage channels.

Eats fish and invertebrates. Contributes to poor water quality, exacerbates algal blooms, suspends sediment, uproots plants. Can cause lake to flip to an alternative state devoid of vegetation, with turbid water dominated phytoplankton.


Check equipment and vessels for freshwater pests, clean everything that has been in contact with the water and dry everything thoroughly.

Find out more:

For more information about brown bullhead catfish and how to manage them, please contact Auckland Council at

Search tags

RPMP status

Aotea (Exclusion)
Whole region (Sustained Control)
Lakes Tomarata and Rototoa
Hauraki Gulf Controlled Area Notice pest
Brown bullhead catfish - Main species image