This North American species is the smaller cousin of the European perch. Their average size is at the 0.5lb range, but some waters produce fish sizes up to 1.5 feet in length. The dorsal section of yellow perch is green/olive to golden/brown. Their belly is generally white or milky. Broad dark stripes can be found across the body. The colour of the fins is either yellow or light orange. The head is generally small, with a large extended jaw.
Introduction of yellow perch into Western Canada has resulted in takeover of ecosystem, a problem that constantly haunts fisheries biologists. In British Columbia, yellow perch are found in lakes on Vancouver Island and Gulf Islands, as well as lakes and ponds in the Okanagan Region.