Atlantic salmon can be found on both sides of the Atlantic ocean, but its numbers have dropped drastically. By the end of the twentieth and beginning of the twenty-first centuries, wild Atlantic salmon became the object of scientific research and sport fishing. Currently, more than 99% of Atlantic salmon live in fish ponds. Leaders in the production of hatchery salmon are Norway (520–550 thousand tonnes of Atlantic salmon and trout) and Chile (approximately 450 thousand tonnes of Atlantic salmon and trout) ( World review…, 2012). At the same time, 50% of Pacific salmon reproduce on natural spawning grounds, while a quarter of the live-stock population spawns in Kamchatka. However, even if Pacific salmon are reproduced in fish ponds, after their release, they feed in the open sea and ocean waters — in other words, they lead a pascual lifestyle.