Pink Salmon (Oncorhynchus gorbuscha) is native to the North Pacific. and adjacent parts of the Arctic Ocean, and spawning anadromously in tributary rivers from California to the McKenzie River, Alaska, and from Japan to the Lena River, Russia. Adults usually move less than 100 km from the sea,.but sometimes over 100 km . Many attempts have been made to introduce Pink Salmon, with varying success. Pink Salmon have been stocked from the Potomac River, to Maine, in . the Maritime provinces of Canada. Hudson Bay, and the Great Lakes (Scott and Crossman 1973). Stocked populations in Maine, ,introduced in 1906 to 1926 Oncorhynchus gorbuscha were planted in the Dennys and Pembroke Rivers in ME from 1906 to 1926, resulting in some returns of adult fish, and apparent establishment of a population, but the populations did not persist, .Populations were established in Newfoundland in 1958, but did not persist (Scott and Crossman 1973). However, these populations populations eventually failed (Harache 1992). Surplus fish from an unsuccessful stocking program in Hudson Bay were discarded in Lake Superior in 1956, and have spread throughout the Great Lakes.. Stockings on the Arctic coast of Siberia including the Kola Peninsula began in 1957, and gradually spread to Finland, Norway, with fish reaching Scotland, Iceland, Greenland, and Newfoundland, Spawning is documented in Norway and Scotland but is not documented in more remote locations. This westward invasion from Russian populations is paralleled by a an eastward dispersal of this Pacific species into the central Arctic Ocean.