The chum salmon, Oncorhynchus keta, is a species of anadromous fish in the salmon family. It is a Pacific salmon, and may also be known as dog salmon or Keta salmon. Chum have an ocean coloration of silvery blue green. When adults are near spawning, they have purple blotchy streaks near the caudal fin. Chum live for an average of 6 to 7 years, and chum in Alaska mature at the age of 5 years. Chum are found around the north Pacific, in the waters of Korea, Japan, and the Okhotsk and Bering seas, British Columbia in Canada, and from Alaska to California in the United States. In Arctic Ocean they are found in limited numbers from the Laptev Sea to the Beaufort Sea. Adult chum usually weigh from 4.4 to 10.0 kg, (9.7 lbs to 22.0 lbs) with an average length of 60 cm (24 inches). The record for chum is 19 kg (42 lbs) and 112 cm (44 inches) and was caught at Edie Pass in British Columbia.