Recently, there has been a heated discussion about whether rainbow trout belongs to salmon or not. Many people think that rainbow trout belongs to freshwater fish, not salmon in the fundamental sense. What's the difference between rainbow trout and salmon?
Are rainbow trout salmon
Experts say rainbow trout is also a salmon. According to experts, the English word for salmon (Oncorhynchus) means' Salmon '. Salmon can be divided into Salmon of Salmonidae and trout of Salmonidae, so salmon is exactly salmon trout. There are two species of trout in Salmonidae: sea trout and rainbow trout.
The reason why many consumers dispute that rainbow trout belongs to salmon is actually a cognitive concept issue. Salmon is a trade name, not a species name. Consumers generally think that salmon must be imported Atlantic salmon. However, all rainbow trout, Atlantic salmon - about 220 varieties of salmon, can be commonly known as salmon.
At the beginning of the 20th century, Norwegians brought Atlantic salmon to Hong Kong. They called it "salmon", which was transliterated as "salmon" in Cantonese. There are different kinds of salmon in different countries. Norwegian salmon is mainly Atlantic salmon. Finnish salmon includes salmon produced in Northeast China and humpback salmon.
The CFA has also issued a statement that in China's market, in fact, salmon is generally referred to as the commercial name of salmon and trout, not a scientific name for a fish. Just like the tuna that Chinese people eat at the table at present, including yellowfin tuna, bluefin tuna, bigeye tuna and bonito are all called tuna. Salmon also includes Atlantic salmon, Pacific salmon and rainbow trout.
Salmon can also live in fresh water
Many people think that rainbow trout living in fresh water is not suitable for eating raw, and there will be problems of parasites. Experts in the industry admit that whether salmon has parasites does not depend on whether it grows in the sea or in fresh water, but on whether its growth process is safe and controllable. It is easier to ensure the quality of industrial cultured salmon with strict management standards, strict monitoring, clean water body and good feed, and it is safer to eat.
China Fisheries Association pointed out that the vast majority of Salmonidae fish are migratory fish. Whether wild or cultured, spawning, hatching and juveniles are completed in fresh water. They migrate in the growth period or put into the sea manually, and then return to the fresh water for spawning after sexual maturity. Some species can also complete their whole life cycle in fresh water, such as rainbow trout, mountain trout and high white salmon, but different species have different ecological types, for example, rainbow trout can also be cultured in sea water after being domesticated, salmon brown trout, there are fresh water type and sea water type.
Differences between Sea Salmon and freshwater salmon
1. Different shapes: the Sea Salmon is larger than the freshwater salmon. The former weighs seven or eight Jin, while the latter weighs a lot less. The largest one weighs only five or six Jin.
2. Different patterns: the flesh of Sea Salmon is orange yellow, with more, thicker and whiter white patterns on the surface. But the flesh color of the fresh water rainbow trout is a little reddish, and the white pattern on the surface is less and thinner.
3. The meat quality is different: the body of Sea Salmon is thicker, while that of freshwater salmon rainbow trout is thinner.
4. Different colors: the surface of Sea Salmon is brighter than that of freshwater rainbow trout.
5. Taste different: Salmon in sea water has higher fat content, so it tastes better, while rainbow trout in fresh water has a bit of dregs.