Fin's Fish Guide
The Rock bass (Ambloplites rupestris) is a freshwater fish of the family Centrarchidae that grows up to 43 cm.
Fresh water of eastern and central North America, in clear lakes and flowing rivers with stony or vegetated bottoms.
Description
The rock bass is a stocky sunfish of the family Centrarchidae reaching about 43 cm but usually smaller. The brownish-yellow body bears rows of dark spots and a large mouth; the red eyes are striking. The fish can change colour and pattern quickly to match its surroundings. The species is native to the fresh water of eastern and central North America and lives in clear lakes and flowing rivers with stony or vegetated bottoms. It hunts insects, crustaceans, crayfish and small fish. In late spring the male makes a nest pit on gravel and guards the eggs and young. For anglers it is a willing, sporting panfish.
Frequently asked questions
How do you recognise the Rock bass?
The Rock bass has a flattened, disc-shaped body, is mainly brown and shows a spots pattern. Stocky sunfish with a big mouth, red eyes and rows of small dark spots; can change colour quickly.
Where does the Rock bass live?
The Rock bass lives in fresh water and is mostly found around stony or rocky ground. Fresh water of eastern and central North America, in clear lakes and flowing rivers with stony or vegetated bottoms.
How big does the Rock bass get?
The Rock bass grows to a maximum of about 43 cm. On average the species is around 15 cm.
Is the Rock bass dangerous to humans?
No, the Rock bass is harmless to humans. None required: this species is harmless to humans.
Is the Rock bass edible?
Yes, the Rock bass is commonly eaten.
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All data
Identification
Appearance
Habitat & distribution
Behaviour & biology
For anglers
Safety
Status & sources
Same genus Ambloplites
More from the family Centrarchidae
Want the complete picture on the Rock bass?
Point your camera at the fish and Fin names the species in seconds. Free, and the Rock bass is one of 12,519 species in the app.