Spawning salmon: the offspring at the cost of life
In nature can be cases when some animals reproduce only once in life. Giving birth to a new offspring, they die. The climate of Kamchatka is characterized by relatively long cold period during the year. Winter is not yet over, and everything around is dormant. Only on the river can be seen, like everywhere scored the hot keys. This concern is due to the start of the salmon spawning period.
Meanwhile, on the shore one can observe the accumulation of white-tailed eagles. They anticipate prey because I know that salmon spawned, will surely die. This is the moment they wait. It’s been two weeks, sockeye salmon (a species of salmon), went to the last of his life’s journey up the river. She will give birth to a new offspring, and she then dies.
It’s been a few years since, as these places spawn another generation of salmon. Some time in this river lived the fry that are born from laid by the female eggs. It lasted for a year or even more time. Further they have a long way in a large pond, and from it they will fall into the Pacific ocean. On this trip the fish spend an average of 6 months. Their way the difficult and fraught with great dangers. Many individuals in the way died and those that survived become adults and live in the spacious waters of the ocean.
It takes quite a lot of time as long as the sockeye decides to go back to the place where she was born.
Adults already have sharp strong teeth, they have formed a hump that gives them, especially the males, are pretty terrible and hard. The way home was a long one. During this time fish thoroughly depleted. Finally, point the target path to be achieved. Sockeye salmon is dug in the bottom of a small pit, where it will lay its eggs.
Among males, tied the real battle. The winner will be granted the right to insemination calves Molokai. But females in this time are not idle. They rage strongly defending the pending eggs.
Males in fights do break, amassing power in order to start a new fight. At this time, they play the role of production, which will certainly take advantage of a variety of predators. When the female spawn and laid eggs, she dies from exhaustion and becoming a good prey for predators and scavengers. During this period, the pond will not remain adult. But the eggs laid by the female, it is safely sheltered in the sand of the bottom of the reservoir. Thus begins a new life.