Golden Fishery

It’s hard not to brag, it’s a sad day when the manuscript is zero, there’s still a party tonight, and I got home at 11:30, and the code word is at this moment, 2:21! I say this not to complain about suffering or tiredness, but to explain why it is a bit late, work hard, keep working hard! ****

Tuna farming is the fishery technology that Japan is most proud of. In this regard, they are unique in the world, and only they have mastered the technology of tuna farming.

This technology is the same as 'Wagyu' farming, and it is top-secret in Japan. If Tezuka Kota hadn't wanted to please Qin Shiou, they would definitely not be able to visit the Seven Islands of Izu.

Of course, Qin Shiou didn't think about visiting at all, he just wanted to come and take away these bluefin tuna.

Bluefin tuna is the most precious fish in the tuna genus, but it is also divided into several subspecies, Atlantic bluefin tuna, Pacific bluefin tuna, etc., the most precious of which is Atlantic bluefin tuna.

The bluefin tuna in the Japanese waters belong to the Pacific genus. Qin Shiou observed it at the Tsukiji Market and could not see any difference between them and the bluefin tuna in his own fishing ground. Nishimura Ryo said that there is a difference in taste. He thinks it is nonsense and there is a fart difference.

The technology of breeding bluefin tuna in Japan can be traced back to the 1970s. The famous Kinki University began to study it. In the 1980s, it realized the cultivation of wild fish into adult fish. However, it was difficult to expand the scale because of the lack of fry of wild tuna.

Breeding technology made a breakthrough in the early 21st century, and Kinki University finally realized whole fish farming, which means that even the fry are artificially propagated.

Although the total shipments are not very large compared to wild tuna. However, the breeding technology has been relatively reliable, and the shipment volume is also increasing year by year. At this point, farming tuna became a real thing.

Farmed tuna is called -tuna in Japan. That is, near-large tuna. The appearance of this kind of fish is similar to that of wild fish, but the taste of the meat is poor. The activity of farmed tuna is not enough, the fat content of the meat is too low, and the taste is not good.

However, the unit price of near-large tuna is not much lower than that of general wild-grade bluefin tuna. The reason why this result can be caused is that the cost of cultivating near-large tuna is very high. More expensive than catching a wild fish.

When Qin Shiou arrived at Lidao by boat, he knew why tuna farming cost so much. This farm is not a small pond, but a circle of artificial super farms built around Lidao!

About seven or eight kilometers away from Li Island, there are prestressed concrete pipe piles connected one by one. These pipe piles are similar to the piles used by Qin Shiou when he built the high-piled wharf. But the length is much longer, after connecting it is a full 200 meters!

And such pipe piles,

There are at least 20 pipe piles around the island. These pipe piles are the skeleton, with fishing nets connected between them. In this way, the fishing net surrounds Li Island for a week and surrounds the entire sea area, forming a so-called tuna farm. In addition, countless thick and thin water pipes protrude from the island into the ocean, and the oxygen generator is booming on the island. Oxygen is continuously poured into the seawater...

Seeing this scene, Qin Shiou understood why Takata Tezuka wanted to cooperate with him in catching tuna so much. The Japanese love this thing so much. The price to be able to eat this thing is really high.

Qin Shiou asked Xi Cun Ling the price of these pipe piles, and Xi Cun Ling said: "One piece is about 140 million yuan, and it can last for 40 to 50 years."

"Is this too expensive, just to study tuna farming?" Qin Shiou asked in surprise, 140 million yen is almost 7 million yuan, and 20 tuna is 140 million yuan.

Ryo Nishimura said seriously: "The value of scientific research is infinite. If the tuna farming technology is fully mature, do you know how much money we can save in Japan?"

Qin Shiou said with a wry smile: "As long as you don't eat this kind of fish, then the money will be saved?"

When Xi Cunling heard this, he was anxious, and said: "How can you not eat it? If you can't eat this delicious food, then what's the point of living?"

Qin Shiou spat out a mouthful of old blood!

Winnie looked at the fishing nets around her and asked curiously, "Nishimura-san, are there any loopholes in these fishing nets? If there are loopholes, wouldn't the tuna escape?"

Nishimura Ling explained: "There must be loopholes, but our research has found that tuna need to swim all the time in order to survive. This way of life makes them form the habit of swimming blindly. They're not going to find a loophole and get away."

Qin Shiou understood this point. Bluefin tuna swims very fast, and can reach a speed of 70 kilometers per hour. If it hits something at this speed, it will basically die. So they formed an unconditioned reflex, and when they found a barrier, they immediately changed directions and swam, and they would not blindly bump into it to try.

It's a pity that the Japanese met Qin Shiou this time. Bluefin tunas are naturally afraid of obstacles, but he, Qin Daguan, can change the nature of these fish!

The Poseidon consciousness quickly turned around Lidao. Qin Shiou encountered some bluefin tuna, but most of them were juvenile fish, which weighed about ten kilograms. The big ones were forty to fifty kilograms, and the ones over one meter long were rare. , this little guy is worthless.

From this point, we can also see the character of the Japanese. At the Tsukiji Market auction last time, many bluefin tuna caught from various sea areas only weighed 20 to 30 kilograms, 40 to 50 kilograms.

But look at their own farms, tuna are not caught until they are mature, and they typically don't treat other people's children as minors.

To the south of Li Island is Nii Island. The farm on this island is owned by Kiyo Village Co., Ltd., and Nishimura can take Qin Shiou and his party to visit the inside of the farm.

When the boat docked at the pier, two men in security uniforms came up and wanted to search them. They were not allowed to bring cameras, mobile phones, or video recorders to the island. The reason was naturally to prevent people from taking pictures of the tuna farming techniques.

Qin Shiou didn't want these people to be searched, so he simply didn't go up, and just asked Xi Cunlong to show them around.

The boat was turning, and the consciousness of the sea god was also turning. When we arrived at the Forbidden Island, we had a surprise discovery.

The pipe piles and pillars of the Forbidden Island are longer, extending to the depth of 300 meters in the ocean. The tuna here are large and small, and the overall size is still small. But these fish swim faster and have a spirit of their own, unlike the lazy tuna in other farms.

Qin Shiou found the answer by knocking sideways to the edge of Xicun. As he guessed, the tuna in this farm were all wild seedlings. If wild bluefin tuna can be caught, it will be brought back before it dies and put into the farm on Forbidden Island.

The sea god's consciousness was spinning inside, Qin Shiou looked at it, and there were probably more than a hundred bluefin tuna inside, which was less than other farms, where there were at least two hundred.

This is also related to the nature of bluefin tuna, because they often maintain high-speed parade. If there are too many of them and they are not in the same population, collisions are prone to occur. Wild fish swim faster than farmed fish, so the density of farming is smaller.

The waters controlled by Poseidon's consciousness start to collect in circles from the outside, and when they encounter tuna, immediately control them and give them a target, swim to the North Atlantic Ocean, and go straight to the Daqin Fishing Ground. (to be continued)