Can the common belt fish on the table be farmed or not?
Belt fish belong to deep-water fish, such as the East China Sea white belt fish (accounting for more than 80% of the world's belt fish production). They live in the middle layer of about 60 meters of sea water during the day and swim to the bottom of about 100 meters at night. The belt fish will hide deeper when the temperature is cold in winter, and some species of belt fish will live in a trench at a depth of 1000 meters all the year round.
After being caught, the hairtail will "explode" because of the loss of water pressure, and the visceral ruptured belt fish will die immediately. This is a major technical problem hindering the cultivation of belt fish. It is impossible to cultivate belt fish in shallow water, but it is more difficult to cultivate them in the deep sea. So at present, there is no large-scale belt fish farm.
Even if the technical problems of belt fish culture are overcome, large-scale culture is also not realistic, the number of belt fish is large and the fishing cost is very low, and the market price is also very cheap. Taking into account the costs of cages, feed and labor, the cost of belt fish culture is naturally much higher than that of wild belt fish fish. in addition, the taste and meat quality of cultured belt fish is definitely not as good as that of wild belt fish, so there is not much market prospect.
Of course, there is not no precedent for belt fish culture. in July last year, the Fisheries Research Institute of Zhoushan City, Zhejiang Province announced that it had overcome the worldwide problem. The artificial breeding of belt fish was successful. More than 300 belt fish from the deep sea were artificially fed for two months, breaking the claws of dead belt fish out of water (deep water) in one fell swoop. At the same time, it also filled the gap in domestic belt fish research. However, this is only a small step forward in belt fish culture, and it is not suitable for large-scale culture. Belt fish culture still has a long way to go.
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