According to Galton’s criteria for domestication the animal must pass a series of criteria in order to be considered domestically suitable. First they must have a natural fondness of humans. They must also be hardy and be able to breed freely while in captivity. They also must love the easy comforts of captivity and require minimal feeding or tending. Between the two fish the neither fish fits this criteria very well at all. Salmon are the most hardy between the two because it has to be able to live in freshwater streams and survive the open ocean. Other than that we can say the fish don’t really have the natural fondness of humans and these fish are known to sometimes stop reproducing while in captivity. Overall neither fish is the greatest candidate for domestication but if I had to choose one I would say the Salmon
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Fish and Fisheries in a Changing World