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Freshwater shark becomes a rising new species in the aquaculture family

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The freshwater shark is a new freshwater aquaculture species introduced from abroad in 1999 by the Chaoyang Aquaculture Science and Technology Park. It is native to Malaysia, Thailand, and other places, and comes in two colors, black and white. The black one is commonly known as the freshwater blue shark, and the white one is commonly known as the freshwater white shark. The freshwater shark has excellent traits in many respects. First, it has a beautiful appearance, with a pronounced hump on its back, a round belly, a conical head, and smooth, scale-free skin. Southeast Asian countries not only use it as an important game fish, but also export its fry as tropical ornamental fish. Second, the freshwater shark lives and inhabits

The freshwater shark is a new freshwater aquaculture species introduced from abroad in 1999 by the Chaoyang Aquaculture Science and Technology Park. It is native to Malaysia, Thailand, and other places, and comes in two colors, black and white. The black one is commonly known as the freshwater blue shark, and the white one is commonly known as the freshwater white shark.

The freshwater shark has excellent traits in many respects. First, it has a beautiful appearance, with a pronounced hump on its back, a round belly, a conical head, and smooth, scale-free skin. Southeast Asian countries not only use it as an important game fish, but also export its fry as tropical ornamental fish. Second, the freshwater shark lives and inhabits the middle and lower layers of water bodies, has a very strong tolerance to low oxygen, and its adaptability and disease resistance are both stronger than those of other fish. In addition, the freshwater shark has a very omnivorous diet. Under natural conditions, it feeds on various decaying animal carcasses and plant debris in the water; under artificial breeding conditions, it can simply be fed artificial feed made from soybean cake, rice bran, corn, fishmeal, and the like. It grows rapidly, and fry of 2-3 cm can grow to 1-1.5 kg in the same year. The meat of the freshwater shark is delicious and tasty, with no intermuscular bones, and it is regarded as a valuable food fish in Southeast Asia and China's Hong Kong region. Therefore, the freshwater shark has very high economic value.

The freshwater shark is a tropical fish, and its ability to resist low temperatures is poor. The suitable temperature for its culture is 20 to 30 degrees Celsius, and the lower limit for water temperature is 12 degrees Celsius. Therefore, its fry cannot overwinter naturally in northern regions, and farmers can only introduce fingerlings for culture. At present, the relevant researchers at the science and technology park are stepping up efforts to tackle the problem of fry breeding, in order to reduce breeding costs, and large-scale promotion of its culture is expected in 1-2 years.

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