Cast Gill

Rock Bass

Ambloplites rupestris · Centrarchidae

About this fish

Spawning
April, May and June
Largest length
up to 43 cm (17 inches)
Lifespan
up to 8 years
Matures at
about 3 years old

Values come from a national database of the United States, not Wisconsin surveys: maximum length is the species' largest recorded anywhere, and spawning months are range-wide (Wisconsin timing, in a colder climate, can be later).

USGS FishTraits 14.3 (CC0). Credit: Frimpong and Angermeier, U.S. Geological Survey.

2,969 open records of this fish in Wisconsin were used here.

Lakes where it has been recorded

From open fish survey and museum records. A record shows the fish was found near the lake in that year, not that it is there now.

Showing 12 of 398 lakes