Salmon, also known as Salmon or Salmon, is one of the more commonly used fish ingredients in Western cuisine. The consumer market salmon in different countries covers different species, Norwegian salmon is mainly Atlantic salmon, Finnish salmon is mainly farmed large-size red meat rainbow trout, and salmon in the United States is mainly Alaskan salmon. Salmon generally refers to the salmoniform order Salmonidae Pacific salmon genus of fish, there are many kinds of, China's Northeast production of salmon and humpback salmon and so on.
Chinese name: salmon
Latin scientific name: Oncorhynchus
Alias: northern trout, chum salmon, rooster fish, mahi-mahi, mahi-mahi
Diomorphism: Oncorhynchusketa
Boundary: Animalia
Phylum: Chordata
Subphylum. : Subphylum Vertebrata
Organism: Radiolarians
Subclass: Neofiniformes
Organism: Salmoniformes
Family: Salmonidae
Region of Distribution: Atlantic Ocean, Pacific Ocean, Great Lakes of the Americas, Heilongjiang
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Outline Characteristics
Salmon
Salmon are laterally flattened. Dorsal bulge, sharp teeth, fine scales, silvery gray, with orange stripes during spawning. Salmon meat is dense and tasty, with a pinkish color and elasticity.
Salmon is one of the world's most valuable fish. Small scales and few thorns, orange-red flesh, tender and fresh meat, smooth taste, can be directly eaten raw, but also can be cooked dishes, is a favorite fish. At the same time, it is made of cod liver oil is a good nutritional product.
Habitat
Salmon is an anadromous fish, BC's main species are chinook, sockeye, pink, chum and in the river
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Streams live for 1 to 5 years, and then into the sea to live for 2 to 4 years. The spawning period is from August to January of the following year. During the anadromous spawning migration, they jump over small waterfalls and dikes, and travel long distances and with great difficulty to reach the spawning grounds, and they do not feed.
Thousands of salmon travel to the Adams River section of Canada's Upper Fraser River each year, probably between July and October, to spawn.
They all come upriver from the Pacific Ocean. The journey is against the current, and at each stage of the journey there is a cascade of "elevation". Getting to a "rung" is like going up a flight of steps, you have to step up. The fish can only reach the next rung of the ladder by jumping up and down. (Like a carp jumping over the Dragon Gate.) However, because of the special environment and the special spawning habits of salmon, they have to reach the upper reaches of this long, high-altitude ladder before they can spawn. So it's not just one or two steps they're jumping, it's a long way back upstream.
At the top of these steps are many bears that are about to hibernate and need to replenish their diet. These bears would grab fish that had jumped up to the surface of the water, and so many fish would die in the bears' fattening bellies.
Only after they have passed through the layers can the salmon reach a calm surface in the uppermost reaches of the lake to spawn. After spawning, the salmon dies, ending its life.
There are also birds that eat the eggs that the salmon have worked so hard to lay, to provide for their own survival. And when salmon die,
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their carcasses are eaten by many animals. There are also wolf-like land animals that will carry salmon in their mouths and forage for food within the forest. And after consuming them, the land animals leave the remaining remains there. As time passes, the remains slowly rot in the ground and become nutrients for the trees, helping the forest grow even more lush.
Hatched fry will rejoin the ocean, and as they grow, they will migrate in schools again, following the paths taken by their elders, strangely always finding exactly where their mothers spawned and repeating the same sadness.
Growth and reproduction
Salmon
The salmon is a brand new species of salmon that was bred by researchers at AquaBounty Technologies in the United States by genetically cross-breeding three types of fish: the Atlantic salmon, the Pacific Chinook salmon, and the ocean cod. This was done by implanting the fertilized eggs of Atlantic salmon with a growth hormone gene sequence derived from Chinook salmon and an antifreeze protein gene sequence derived from ocean cod.
Why were these three salmon species chosen for crossbreeding? Chinook salmon are the largest of the salmon family, and the antifreeze proteins in the blood of ocean cod allow them to survive in cold waters.
The common wild Atlantic salmon, which normally develops only in the warm currents of spring and summer, takes three years to grow. But the AquAdvantage salmon, which has "absorbed" the good genes of Chinook salmon and ocean cod, is different. Under the effect of the synthetic gene, it can still secrete growth hormone in cold climates, so its growth cycle is shorter, shortening the time on the market from three years to one and a half years, and its body size is much larger than that of ordinary wild salmon. salmon is much larger.
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It looks like genetically modified salmon will be a boon to the fishing industry and the environment. As Dr. Ronald Stotish, president of AquaBounty, says: "The GM salmon's ability to grow quickly reduces the cost of farming, and its environmental resilience means that the salmon can be farmed close to land or even in residential areas, making it easier to supply as well as reducing carbon dioxide emissions on transport. "
The American public, however, sees it differently, and is more concerned about whether the salmon, which neither adds any nutrients nor becomes more flavorful, is safe to eat, a concern that Stotish feels is completely unwarranted, "Our genetically engineered salmon is identical to traditional Atlantic salmon on every measure " In the test data AquaBounty handed to the FDA, the GMO salmon was compared to Atlantic salmon in terms of taste, color, vitamins, minerals, fatty acids, protein, and many other areas, and the results showed no difference.
For its part, AquaBounty also