subject: Importance About Salmon [print this page] Salmon is the most common name given to many species of fish of the family Salmonidae. Many other fishes of the family are known as trout .
People will see the difference in the migratory life of the salmon in comparison to the residential behaviour of trout . Mostly salmon lives in the Atlantic and Pacific Oceans and the Great Lakes of the ocean. One should know that salmon are anadromous as they are born in fresh water, migrate to the ocean, then returned to the fresh water for reproducing. The are many species which can survive in fresh water habitats only. So consumers of salmon should collect information about salmon before having it any aspect of their life.
In Alaska when crossing-over to other streams is done then it permits the salmon to populate the new streams just like those which emerges as a glacier retreats. It is believed that salmon had the usage of their precise methods for navigating which is still not established by researchers, but in this their sense of smell is present. In many species of Pacific salmon, most of the mature individuals die within a few days or one can say less than a week of spawning, which is a trait called as semelparity. Also in those species of salmon which left to survive for spawn more than once, in that case post-spawning mortality is quite high near about as high as 40 to 50%.
the female salmon has the usage of her tail for laying roe for creating pressure zone, lifting the gravel to swept downstream, and also excavating a shallow depression known as redd. Users of salmon should know that the redd contains most probably near about 5,000 eggs covering almost 30 sq.feet. Salmon eggs people will find in varied ranges such as from orange to red in color. Many males will come to the female which having her redd, then laying his sperm or milt over the roe. After this the female covering the eggs by disturbing the gravel at the edge of the depression before going to make another redd. One should know that the female has seven redds until her supply of eggs dont get exhausted . After its completition the salmon will die after few days of spawning.
