Chapter 239: The Problem of Breeding
Tang Hai is not rich and capricious, but after the identity of a person changes, many thoughts will also change.
For the average fisherman, an oversized bluefin tuna represents the second prize of the US Powerball, but for Tang Hai, it is a giant panda in the ocean......
This must have been attracted by the environment of the Dahlia Fishing Ground, and Tang Hai didn't want to be an accomplice to the genocide!
That's right, it's really close to extinction!
The bluefin tuna in the Atlantic, which involves the interests of too many nearby countries, was predicted to be endangered by scientists in 2015, saying that if it continues to do so, it will be extinct within three to five years!
There are many scientists in the world who speak with money, but there are also many scientists with a conscience, but the 2015 report is agreed by both groups!
Leatherback turtles' extinction predictions are mainly plastic bags, not only leatherback turtles, but also other turtles, the latest related is the report of Treasure Island, claiming that 99% of the sea turtles in the sea near Treasure Island have white garbage in their stomachs. In fact, the situation in various places is not half a catty.
Bluefin tuna is endangered because it is too tasty, elephants die because of teeth, people are guilty, bluefin tuna meat is delicious is absolutely incomparable to other fish, a plate of sushi is only two, a plate sells for 175 US dollars, not the best!
The protectors of the leatherback turtles are working hard to do useless work, knowing that they can't do it.
Bluefin tuna conservationists submitted a limit to the United Nations, which was typed out because they proposed an annual catch twice as much as scientists and biologists had calculated......
Tang Hai continued to eat, the fishing rods were broken, and he had no interest in using the boat hook to fish, so he ate and read the newspaper to relieve his boredom, thinking that he would have to go down at night to find it, and take out the hook in the tuna's mouth, hoping that it would not be scared away too far.
After all, it is a tuna not a wild boar, a wild boar can eat snakes, even if it is a poisonous snake, the stinger will form a pimple in the stomach and wrap it, slowly decompose the toxin, the pimple is a more valuable medicinal material than the natural bezoar.
"I didn't expect you to take the initiative to let it go, I actually wanted to ask you just now, but it's too precious, so I don't know how to speak." Jennifer sat down beside Tang Hai with a small pony.
"It's a species that is going to be extinct, and although Monaco's application for endangered protection was not approved because of its deliciousness, in my eyes, at least the 600-pound tail is an endangered species."
"It's not just endangered...... It is equivalent to the tiger in the ocean, if the tiger is gone, what will happen in the mountains and forests? Jennifer looked at Tang Hai very seriously, "Then wolves and baboons can reproduce endlessly, and without natural predators, they will make no other species exist in the mountains and forests, and in the end they will perish themselves!" ”
"You can't fool me, Jennifer, the tigers of the ocean aren't just bluefin tuna, they're leopards at best."
Jennifer is so frustrated, I miss the time when she asked for anything and gave it......
"Do you raise bluefin tuna?"
Tang Hai's words made Jennifer stunned, and she immediately narrowed her eyes, it turned out that Tang Hai meant this!
"If I don't say anything, I'll ask Hadley, and he'll be glad that the amount of some kind of food for humans has increased."
"Hey, even if you ask him this time, he's right, it's one of the biggest problems in the marine fishing industry! If he can solve this problem, he will become the richest man in the world in 20 years! Absolute! When she heard that Tang Hai was going to throw things to Hadley again, Jennifer was not happy, as if she was not as good as Hadley.
"Then if I solve this problem, doesn't it mean that I can become the richest man in the world within 20 years?" No matter how calm Tang Hai is, he can't be calm at this time!
"It's impossible...... Not to mention whether there will be technical leaks after you solve the problem, let's just say a simple, national dispute, Monaco's application for protection will not be passed, because dozens of countries are not happy, and would rather fish the bluefin tuna in the Atlantic Ocean to extinction than protect it! Don't look at the Pacific Ocean is more peaceful than the fishing industry in the Atlantic, Magellan saw that the wind and waves were calm when he entered the Pacific Ocean, so he renamed the ocean the name of 'Pacific', but the new head of your country also sighed that 'I really hope that the Pacific Ocean is peaceful'......"
"Well, a dispute over national interests."
"The second is the geographical environment, bluefin tuna is an oceanic migratory fish, and the natural spawning environment is not as high as that of sailfish, but it is also 19 to 28 degrees Celsius, and the environment for hatching and juvenile growth is even more demanding, and the water temperature in Washington State is not up to the requirements."
"This ...... There is no successful captive breeding in the world? ”
"A lot, the first is the Mexican feeding method, catching about 50 kilograms of fish, captivity for a period of time to 70 kilograms and then slaughtering, which is actually equivalent to intercepting a large number of good fish that have not been bred yet, the more you do, the faster the extinction of the species will be accelerated, I will not tell you the detailed steps."
"The second is the 'herding and fishing' method that is also used in the Mediterranean, Japan, Australia, and even some parts of the United States, using purse seine nets to drive herring into the bay, and there will be a large number of bluefin tuna to eat by themselves, and then fish for half a year. I won't teach you this method until the United Nations has not specified the amount and size of fish! ”
Tang Hai's heart moved, the way he raised fish now was like this!
"Is there a third or fourth?" Tang Hai suddenly laughed.
Jennifer didn't know why Tang Hai seemed to be happy for a moment, and frowned: "The third is the captive breeding method that is more popular in Japan now. It is to catch very small juveniles, usually 0.5 pounds, to be raised in a 30-meter diameter ring net until they reach about 120 pounds. Tuna are so fast that only ring-shaped rearing facilities can prevent them from hitting and killing themselves. I know the secret of this way of feeding, that is, I can't feed sardines, I can only feed high-quality fish of the mackerel family, and mackerel is preferred, otherwise the meat quality of tuna will be very poor. Because bluefin tuna is a hot-blooded fish, the calorie consumption is large, it eats ten catties of fish to grow a catty of meat, the conversion rate is very low, mackerel is also expensive, plus bluefin tuna juveniles will devour each other...... If you want to raise it like this, I will definitely help you, but you have to sell it to Japan to sell it at a high price, and if you count the oil money, you will lose money, and I know that many Japanese fishermen have finally given up and turned to raising halibut and grouper......"
"Fack! Isn't there a farming method that can make money and restore the ecology? ”
"Yes. In 2009, the Spaniards loaded 35 fertile fish in fish boxes and laid more than 100 million eggs, which is a normal hatching rate, but the longest to live is 73 days, which the fishing community believes is because the water quality and environment are not suitable for bluefin tuna to grow. Japan's top fishery experts have been studying since 2002 and have been studying since 2009, but the news has been blocked. They experimented once a year, and in 2014 they were able to get the bluefin tuna to spawn and hatch and grow in a limited fishing area...... I judge that they will be able to meet 30% of the needs of captivity farms this year, and maybe they will be able to perfect the technology in ten years! ”
"Do you think I can steal this technology on a trip to Japan?"
"I admit that you have a lot of skills, but a lot of technology is memorized, and you may not even be able to find out who has mastered the most core technology...... No one can steal their halibut farming technology now, and if you want to steal the latest tuna technology, the difficulty is probably to kill their prime minister two or three times in a row......"
Tang Hai had to sigh leisurely: "I'll take you to a place tomorrow." ”
"Where are you going?"
"Eat tuna! Maybe after eating it, you will be more motivated and help me think about how to breed. ”
Jennifer squinted at Tang Hai, she wanted to protect, not to raise and eat, Tang Hai thought beautifully.
…… (To be continued.) )