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Fish

 

Perch and Darters

Yellow perch, Perca flavescens.
Yellow perch,
Perca flavescens.

Class: Bony fish
Order: Perch, darters, sunfishes and bass
Family: Perch and darters

Species found in the Rideau River:
Tessellated darter, yellow perch, logperch, walleye

Characteristics of the family:
The dorsal fins of perch are clearly divided into two parts, the first part spiny, the second part soft-rayed. The species does not have an adipose fin and the anal fins have two or fewer anal fin spines.


Representative species: Yellow perch
Description These fish have a green back with yellow sides with about 7 vertical, dark green stripes along the body. The tail fin is slightly forked.
Size 15 cm to 25 cm
Distribution Range throughout Canada and the U.S.A., but they are rare in the western states. They are found along the Rideau River.
Habitat Yellow perch like vegetated areas in warmer water, with slow to moderately fast current.
Food Invertebrates, small fish.
Life cycle Spawns in spring in lake shallows or in tributary streams over submerged beds of aquatic plants or brush, or over sand, gravel, or rubble. The parents do not care for the eggs or young.
Interesting facts Yellow perch eggs are unique in that they are laid in long gelatinous strings that would reach 2 m long if stretched out in a line. They weigh up to 0.9 kg! These egg masses are semi-buoyant and float along with the water currents until they get caught on vegetation or the bottom, where the eggs will hatch.

 

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Yellow perch, Perca flavescens.
Yellow perch,
Perca flavescens.


A Project of the Canadian Museum of Nature
 Images: Canadian Museum of Nature, Hemera