Bluefin tuna is so rare, why not cultivate it artificially? What do you think?
Tuna can be grown, especially bluefin tuna. In many countries around the world, it can be grown in mesh containers, but it is currently the only one in the world that can ensure the sustainable development of the entire artificial fishery. Japan. Here is an example of bluefin tuna. Here we are talking about raising children. Bluefin tuna is divided into different species, including northern bluefin tuna, which is the largest and fastest in the world. Its length can reach 2.5 meters, weighing up to 350 kilograms, and swimming speeds of 70-80 kilometers per hour.
The growth in demand for tuna and the number of tuna stocks are worrying, especially for large fish species such as bluefin tuna, northern bluefin tuna (EN) and southern bluefin tuna (CR), which are listed as endangered species by IUCN. ) after becoming locally extinct, while Pacific bluefin tuna and bigeye tuna are classified as vulnerable (VU). Therefore, it is hoped that captive breeding can reduce the burden on wild tuna populations. In Japan, the United States and Europe, consumers prefer it, but most sales on the market come from wild tuna caught from the sea. Due to its size, sensitivity, fear of light and the need to constantly move and breathe, it is difficult to produce large-scale, low-cost tuna. Breeding. However, there are also some short-term reserves of tuna - 20-60 kilograms of tuna, which will be caught and grow rapidly after short-term accumulation.
This farming method involves short-term feeding of 20-100 kilograms of wild and small tuna in order to reach 150 kilograms or more in 6-7 months. The meat quality is slightly different from that of pure wild animals caught at sea. Small tuna and therefore cannot serve the environment as wild tuna! As mentioned above, tuna's main source of nutrition is wild, so artificial feeding has little effect. We usually raise fish in nets, then choose high-quality nets and water more suitable for tuna growth, and then dump them into the sea of ??our choice.