The living habits of salmon (the young boy leaves home and the boss returns)

The living habits of salmon are very interesting, as Heilongjiang fishermen say: "It lives in the sea and dies in the river." Salmon is a migratory fish in the sea and rivers. It lives in the North Pacific to fatten and grow. When it reaches sexual maturity, in order to reproduce, it must go through all kinds of hardships, enter the river, and go up to the spawning ground to reproduce. The salmon that spawn in our country's rivers cross the Sea of Okhotsk in groups every autumn (September-October), bypass Sakhalin Island, and go up the Heilongjiang River, traveling day and night, working tirelessly to It travels long distances and keeps moving forward, traveling 30-35 kilometers day and night. No matter it encounters shallow canyons or rapid waterfalls, it never retreats. It rushes through numerous obstacles and obstacles until it reaches its destination and finds a suitable product. Egg site. When salmon is moving forward, in order to cross a waterfall or obstacle, it uses its tail to hit the water with all its strength, and swims at high speed to jump forward and upward diagonally out of the water, and jump up to 2-2.5 meters into the air. Because it is good at jumping, the ancient Latin name was Salire, which means jumping, and it was transformed into English Salmon.

Salmon travel long distances and do not eat during migration. They rely on nutrients stored in the body to maintain life. Therefore, long-distance travel, starvation and physical exertion during reproduction make most broodstock thin and prone to injuries, especially males. The fish is even more physically exhausted. Therefore, soon after reproduction, the male parent fish will die one after another, completing its lifelong mission of reproducing offspring. Most of the female fish still return to the ocean, get abundant food, and return to normal. The fertilized eggs hatch after 2 months of development, and the larvae lurk in the darkness among the gravels. When the river opens in April of the following year, the young fish have grown to about 500 mm and begin to descend into the river and into the sea. They stay on the coast for a period of time and then Migrate to the open sea. After reaching sexual maturity, they return to their birthplace to complete the task of reproducing offspring.

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