Salmon is the common name for several species of
fish of the family
Salmonidae. Several other fish in the family are called
trout. Salmon live in both the
Atlantic and
Pacific Oceans, as well as the
Great Lakes and other land locked lakes.Typically, salmon are
anadromous: they are born in
fresh water, migrate to the ocean, then return to fresh water to
reproduce.
Folklore has it that the fish return to the exact spot where they were born to spawn; research indicates that at least 90% of the fish that
spawn in a particular stream were born there. In
Alaska, the crossing-over to other streams allows salmon to populate new streams, such as those that emerge as a
glacier retreats. The precise method salmon use to navigate has not been entirely established, though their keen sense of smell is involved. In all species of Pacific salmon, the mature individuals die within a few days or weeks of spawning, a trait known as semelparity. However, even in those species of salmon that may survive to spawn more than once (
iteroparity), post-spawning mortality is quite high (perhaps as high as 40 to 50%.) Those species average about two or, perhaps, three spawning events per individual.
See more at Wikipedia.org...
1. Snout (Tobacco) 2. Stout (Beer)
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