Yellow Perch
Perca flavescens

The Yellow Perch (Perca flavescens) is a member of the perch family of fish.

Report a discovery in an unlisted area

If you think you’ve seen or caught a Yellow Perch:

  • Do not release it into the water.
  • Catch it and keep it frozen. If you can’t do that, destroy it.
  • Note the location (with GPS coordinates if possible) as well as the observation date.
  • Contact Fisheries and Oceans Canada.

Identifying features

Where it has been found

The Yellow Perch is a freshwater fish with an almost circumpolar distribution in the northern hemisphere. In Canada it can be found from Nova Scotia and Quebec, west to Great Slave Lake in the Northwest Territories. This small, prolific fish is especially abundant in Manitoba lakes and in the Great Lakes drainage system. In B.C., the Yellow Perch has been introduced to the Pend Oreille, Kootenay and Okanagan watersheds.

Habitat

The Yellow Perch is a cool-water species and is most abundant in the open water of lakes with moderate vegetation, clear water and bottoms of muck, sand or gravel.

Ecological and economic impacts

The Yellow Perch directly competes with trout and salmonid species for planktonic food and preys on the juveniles of other fish species. It out-competes salmonids, though the impact may be lessened in large lakes. The presence of predatory fish that consume Yellow Perch may lessen their impact on the native species.

Origins and mode of arrival

Native from North America

Mode of dissemination

Once established, populations of non-native fish can disperse through connected waters into adjacent habitats.

There are many pathways for their introduction that are linked to human activities, including: recreational and commercial boating, construction of new canals and water diversions, releases from live food fish markets, releases from the aquarium and water garden trade, use of live bait, illegal introductions to create new fisheries. The most likely of these unofficial pathways are illegal introductions, dispersal through connected waterways and live bait.

In eastern Canada and the U.S. a major vector for Yellow Peach introduction is their use as live bait for large sport fish such as Walleye, Pike and Bass.

Government action

Scientific research

Fisheries and Oceans Canada is studying the Yellow Perch population to improve its understanding of how it reacts and adapts to Canadian conditions.

For further information

References

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