Salmon is the common name for several species of the family Salmonidae. Several other
fish in the family are called trout; the difference is often said to be that salmon
migrate and trout are resident, a distinction that holds true for the Salmo genus.
Salmon live along the coasts of both the North Atlantic (one migratory species Salmo
salar) and Pacific Oceans (approximately a dozen species of the genus Oncorhynchus),
as well as having been introduced into the Great Lakes of North America.