Rock Bass
(also known as the Rock Perch, Goggle-Eye, or Red Eye)

In the sunfish family, they are similar in appearance to smallmouth bass but are usually quite a bit smaller. The average rock bass is between 6-10 inches, and they are rarely over a pound.   While fairly good eating cooked fresh, Rock Bass are generally not regarded by most anglers as a food fish of the quality of   bluegill or   perch. They are often caught with lures while fishing for   bass, and readily bait and small lures when fished in cover near the lake bottom.

Rock bass have reached a maximum recorded length of 43 cm (17 in), and a maximum recorded weight of 1.4 kg (3.0 lb). Most Manitoba rock bass are under 4 inches but one in Lac Du Bonnet was caught at almost 11 inches. They can live as long as 13 years. These fish have the ability to rapidly change their color to match their surroundings. It is this chameleon-like trait that allows them to thrive throughout their wide range.

Rock bass spawn in the June.   The male excavates a shallow nest depression, which he defends against other males. A female is driven into the nest and deposits eggs.   The male guards the nest and fans the eggs during development, until the hatchlings disperse from the nest. The rock bass prefers clear, rocky, and vegetated stream pools and lake margins. It is carnivorous, and its diet consists of smaller fish, insects, and crayfish.

Rock bass can be surprisingly unflustered by the presence of human activity, living under lakeside docks and near swimming areas.