Salmons migration is closely related to the breeding of this species. Salmons migrate to breed. Salmons migrate from the sea to the river where
they were born in the first for the breed. How did they find the river where
the fish was born without any errors? First let's answer the question how is
this?
Salmons migration process begins with an eggs. The female salmons will lay
their eggs in the river, where they were born before. After laying the eggs,
the female salmons will lost their nergy and die. Salmon babies get food from the specials in the egg sac. A few weeks later they
were able to find their own food in the river. After the age of about 1 year
they migrate from the river to the Pacific Ocean with the help of water
currents. After reaching the Pacific Ocean on the genetic mechanisms of salmons will turn this causes salmon can live
in freshwater and saltwater. 1 to 4 next month they will sail the ocean after
leaving the coast of America they then pass alaska then went on with a giant
bow-shaped grooves in the direction of Japan and finally back again, at the end
of the journey they have grown up and ready to make his last wanderings. They
will return to exactly where they were born. Now they began to swim against the
current. They were able to jump high to get through the waterfall.
They are able to cover a distance of 3200 miles without eating anything
and just use the energy they collect in the oceans. But how many lives this
salmon - years in the ocean can be returned to the river where they were born
without getting lost in? Research has shown that salmon use the Earth's
magnetic field as they navigate to find the place where they were born. Earth's
magnetic field varies in every ocean around the world and has a magnetic field
each - respectively. There seem to be two possible ways this magnetic field
affects the fish.
First their brains function as a biological compass is set at the time of
entry into the ocean. The second feeling magnetic field just by moving through
the water. Research has shown that in addition to having salmon navigating the
Earth's magnetic field has the keenest sense of smell that ever existed in this
world. Perhaps it never occurred that every river has its own smell. But it is
a fact every river on Earth has its own chemical composition. Often the
difference between the varying composition of chemicals in the water can not be
detected except by salmon.
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