Giant arc stretches from the northern Pacific coast of Hokkaido through the Kamchatka Peninsula, many small northern islands, Alaska and almost to the sunny California.It is in these majestic and mostly inhabit the harsh waters of sockeye salmon - fish of valuable commercial breed salmon family.Its originality lies in the fact that it annually at the approach of the spawning period, in obedience to its powerful instinct, extreme swims thousands of miles.Many individuals or dies on its difficult path, or falls on the "dining table" of various forest predators who literally organize a banquet, meeting with huge shoals of red fish.
Sockeye salmon - fish passage type.She, like all other types of Pacific salmon, make long, dangerous and exhausting migration transitions.From their permanent freshwater habitats in salted and cold waters of the North Pacific for feeding before returning to spawn there, where it began its life cycle.Due to its high calorific value and exceptional taste, it is a valuable component of the human diet.And being very active sockeye fishery.This is another danger lies in wait for her at the time of the great migrations.
In Asia, this fish spawns mainly in the rivers of Kamchatka, Chukotka, as well, albeit in somewhat smaller quantities, the Commander and Aleutian Islands.In addition, sockeye salmon - the fish with the "Russian citizenship" as a myriad of valuable representatives of the water it lives in the world of domestic rivers and territorial waters of the Pacific Ocean.Here its main breeding ground - Kuril lake, which is located in the southern part of Kamchatka.This reservoir was formed by powerful tectonic shaking for about eight thousand years ago.Every year come here to spawn more than six million nerok.First they find a body of water at the temperature characteristics, the chemical composition of water, its odor and even movement of the solar disk.Sockeye salmon - fish with perfectly developed abilities to location and orientation.
her American relatives, driven by the same inexorable instinct rise in the waterways of British Columbia and the north-eastern coast of the United States, along the way overcoming the dangerous rapids and extreme waterfalls.Such a movement against the current is not easy given sockeye.Mostly, they just have to crawl through muddy bottom, barely making his way through the ranks of his close relatives, scraping sides, tearing scaly plates and fins of various obstacles, but with a fierce stubbornness moving to a place where they will close the circle of life evolution.Such a complex journey up the major waterways and small streams, overcoming a large number of dangerous rapids and waterfalls is the most important in the life of these creatures.The longest is a dangerous journey lasts just on the way to the lake Kurile where fish sockeye spawn in the period from the last decade of July until the beginning of February.
also very curious significant metamorphosis experienced by fish body during your adventure travel.She had stopped eating, thus slowing down the function of the stomach, intestines and liver.Active work continues only with the rest of the pituitary glands of internal secretion.Accumulated fat deposits and various nutrients is fully concentrated in the reproductive system.Also, changes and color of her body.Silver, dark blue areas on the back (in a normal period), during the spawning season, he becomes blood-red color.Fish sockeye (photo demonstrates this amazing disturbances) because of this extraordinary transformation had another name - red.
