With the development of progress in the twentieth century, representatives of the animal and plant world began to massively migrate from one territory to another. And if some of them crossed the ocean and settled in a completely different country of the world without the direct intentions of people, then some species moved into the same reservoirs on purpose. It was with the best of intentions that new residents were settled in the Barents Sea.
1. Pink salmon
This representative of the salmon family lives in the North Pacific Ocean near the coast. Cold arctic water is its natural habitat. Pink salmon lives in the Sea of Japan and the Bering Sea, off the east coast of America and Canada.
In the thirties of the last century, scientists from the Soviet Union decided to settle this fish also in the Barents Sea. Moreover, the conditions for life here are quite suitable for her. Pink salmon were released into the sea for two decades, and the result was positive. Its acclimatization in the Barents Sea, as well as in the White Sea, was successful. To spawn, it enters the rivers of Norway and the Kola Peninsula.
Why are they satisfied in Russia, but not in Norway?
Pink salmon are caught and then sent for sale, and the Russians are quite happy with this state of affairs. Norwegians do not have such a good attitude towards her. The fact is that pink salmon displaces the local salmon, Atlantic, and also home-grown fish there are many here, but there is no one to sell it to anyone, since there are too many newcomers. Therefore, pink salmon is caught and then sent for disposal, but this does not help much.
2. Kamchatka crab
It was also decided to settle this Pacific inhabitant in the Barents Sea. And here it was not without the bright minds of Soviet scientists. For the first time, an operation to resettle the king crab was carried out in the thirties of the last century, but it suffered a fiasco. We transported crabs by train. They simply could not stand such a long trip. The second attempt fell on the fifties of the last century, but it also failed. However, the scientists did not give up and as a result achieved what they wanted.
After another two decades (the seventies of the twentieth century), they decided to organize a trip to the crabs by air. They were sent to their final destination by plane. And now they are in the Barents Sea, which they immediately liked, as evidenced by their massive and rapid reproduction. By the beginning of the two thousandth their number was 100 million units. When settling the Kamchatka crab, the snow crab, Opilio, was accidentally populated, which also took root in a new place. The latter weighs up to 1.5 kg, while the Kamchatka one - up to ten kilograms.
>>>>Ideas for life | NOVATE.RU<<<<
And what about Norway
The Norwegians reacted unfriendly to the immigrant. Here they called the crab "the red threat" and predicted an eco-catastrophe. The consequences can be really unfavorable, since the crab feeds on fish eggs, molluscs and sea urchins.
At the very beginning in Norway, it was massively caught, and then sold in almost all countries of the world. Whatever attitude was towards him, the Norwegians received impressive income from the sale of the crab. Over time, the catch became limited here, as they were afraid that the crab would disappear, and with it the source of income. At the amateur level, crab fishing has never been prohibited.
As for amateur fishing in Russia, here it was allowed under a license in the Murmansk region from 2021. It is allowed to catch one crab per person per day. For industrial purposes, it is caught from late summer to early winter (December), but exclusively by males. Fishing in the coastal twelve-mile zone is prohibited. Of course, the crab had its influence on the ecosystem. But serious research in this area has not been carried out.
Continuing the topic read, how patients are fed in foreign hospitals.
A source: https://novate.ru/blogs/300821/60347/
IT IS INTERESTING:
1. 7 home furnishings to put in a garbage bag and take to a landfill
2. Makarov pistol: why modern models have a black handle, if in the USSR it was brown
3. Why did revolutionary sailors wrap themselves in cartridge belts