<P> The term `` salmon '' comes from the Latin salmo , which in turn might have originated from salire , meaning `` to leap '' . The nine commercially important species of salmon occur in two genera . The genus Salmo contains the Atlantic salmon , found in the north Atlantic , as well as many species commonly named trout . The genus Oncorhynchus contains eight species which occur naturally only in the North Pacific . As a group , these are known as Pacific salmon . Chinook salmon have been introduced in New Zealand and Patagonia . Coho , freshwater sockeye , and Atlantic salmon have been established in Patagonia , as well . </P>
<P> The term `` salmon '' comes from the Latin salmo , which in turn might have originated from salire , meaning `` to leap '' . The nine commercially important species of salmon occur in two genera . The genus Salmo contains the Atlantic salmon , found in the north Atlantic , as well as many species commonly named trout . The genus Oncorhynchus contains eight species which occur naturally only in the North Pacific . As a group , these are known as Pacific salmon . Chinook salmon have been introduced in New Zealand and Patagonia . Coho , freshwater sockeye , and Atlantic salmon have been established in Patagonia , as well . </P>
how many types of salmon fish are there
how many types of salmon fish are there
eight species
eight species