After the ban on fishing, the Yangtze River saury increased by 2 5 times, and the number of 100 ca

After a 10-year fishing ban, has the number of fish in the Yangtze River increased? All kinds of productive fishing are banned, and even recreational fishing is regulated. This has created very convenient conditions for the recuperation of fish in the Yangtze River.

Survey <>

According to a survey conducted by the Freshwater Fisheries Research Center of the Chinese Academy of Fishery Sciences, the average weight of fish in the Yangtze River this year has increased by more than half compared with last summer and autumn, and the number of saury fish in the Jiangsu section of the Yangtze River has doubled.

Saury <>

In the 70s of the last century, the production of saury in the Yangtze River reached 3,750 tons, and fishermen could catch a few in one net.

10. Hundreds of pounds. But at the beginning of the century, in just a few decades, the saury has changed from a common economic fish to an endangered fish species that is "hard to find".

Is saury precious?

Whenever it comes to the saury of the Yangtze River, I am afraid that many people have only heard of its delicious name, and they are afraid of its thousands of yuan a catty. And for some people, they are more surprised by this, how did the original rotten street saury rise to thousands of yuan a pound after decades? Whenever before Qingming,It is a good season to eat saury, so it is also an opportunity for saury to break new highs again and again.

With a series of reasons such as water pollution and overfishing in the Yangtze River, the number of saury in the Yangtze River is decreasing. In the 80s of the last century, the output of the Yangtze River saury appeared cliff-like, plummeting to more than 300 tons, and this number is decreasing year by year. Now, a few fishing boats are busy all day, and they may only be able to catch a single swordfish.

As for the delicacy of the Yangtze River saury, I have never had a chance to taste it, but it must be not bad to be able to say it on a par with anchovy and pufferfish, but whether it has reached the level that some people describe as "this thing should only exist in the sky", I think it depends on how you understand it. After all, for some people, if you buy a small fish for a few thousand dollars, the fish must be delicious to the extent that it is "ancient and modern"!

In fact, the saury is only expensive before and after the Qingming Festival, and the saury at other times will not be too expensive。More than 8880 pounds is very, very high. The saury should also be divided into Yangtze River saury and sea saury, they are different.

Saury has become a luxury, which has naturally attracted the attention of some people. Just like Moutai's serious premium, a bottle of wine costs more than 2,000 yuan, naturally because it highlights the good identity of wine tasters. If there is a saury fish on the dinner table, then the grade will naturally rise.

Introduction: Because of the overfishing of fish in the Yangtze River basin in the past, there are fewer and fewer fish species in the Yangtze River basin. From the past where you can catch dozens or hundreds of catties with a casual net, to the Yangtze River where there is no fish now.

Since January 2020, the Yangtze River has been closed to fishing, and fishing boats are not allowed to fish, fish and nets.

1. The Yangtze River is closed to fishingIn the 70s of the last century, the total output of saury in the Yangtze River reached 3,750 tons, but with the overfishing of the Yangtze River by humans, the saury with such a large output has almost become extinct. In just a few decades, the saury has gone from being ubiquitous to being a hard-to-find fish, and it is also a rising tide. But since the ban on fishing in the Yangtze River, the fishing boats on the Yangtze River have disappeared, and all kinds of fishing nets placed on the shore have been swept away, and even anglers are now not allowed to fish.

2. The number of saury fish doubled after the fishing ban began in January 2020 to now, and the number of saury caught in a single net in the Yangtze River section of the research department has doubled compared with last year. This shows that it is still necessary to ban fishing on the Yangtze RiverAdequate conservation measures allow these fish to recover quickly on their own。Not only the knife and other fish in the Yangtze River, but also the weight of the individual has increased a lot in the more than a year of cultivation, and the fish condition has also increased, and even the finless porpoise has become easier to observe.

Moreover, this time the Yangtze River fishing ban is ten years, and after ten years, many fish in the Yangtze River basin will easily break 100 catties. <>

3. Ecological ProtectionAlthough our country used to overfish the Yangtze River, which led to the endangerment of many fish in the Yangtze River basin, we have now woken up and begun to pay attention to ecological protection. The 10-year ban on fishing in the Yangtze River will allow the ecology of the Yangtze River to reach a state of balance, and it is hoped that there will be no overfishing again after 10 years.

Yes, saury is particularly prized, and it is now banned due to the fact that there are fewer and fewer saury fish due to previous overfishing.

The saury is indeed very precious, and it has a very rich nutritional value, so the cost performance is also very high, and it is particularly expensive to sell in the market.

Particularly precious. The number of saury fish is now very rare in our country, so it has become a protected animal.

Yes, this fish is more precious, because of its unique appearance and taste, so it is hunted by humans, and now there are very few of them.

The saury is regarded as the first of the three fresh fish in the Yangtze River and is a well-known rare fish in China. In the past, the price of Yangtze River saury was 8,000 yuan a catty, and it could be sold for tens of thousands of yuan a catty before and after the Qingming Festival. At an auction in Jiangsu in 2012, a 325-gram king saury sold for 59,000 yuan, making it one of the most valuable fish species in China.

The Yangtze River saury has a silvery-white body, a long and thin body, and a knife-like shape, and is also a migratory fish. Every year in the beginning of spring, from the mouth of the Yangtze River upstream to the nearby rivers and lakes to spawn, small fish grow out to sea, forming a cycle pattern. In the alternation of the Haijiang River, the Yangtze River saury has a fresh and tender meat with a slight fragrance.

In addition, the Yangtze River saury has a very high nutritional value, rich in protein, phosphorus, calcium, zinc and other nutrients. The ingredients have shrugged shoulders since ancient times, and the blush is newly out of the water, so the ginger and cinnamon pepper flavor number praise the verses of the swordfish. In the early years, saury was the most commonly used fish by Shanghai residents.

Since 2019, the state has stopped issuing special fishing licenses for Yangtze River saury, and in 2021, the Yangtze River has implemented a ten-year fishing ban, and the Yangtze River saury seems to have become a legend. Restaurants that were once famous for their Yangtze River saury began to remove the Yangtze River saury brand, and the Yangtze River saury has become a delicacy that has been passed down by word of mouth but can no longer be tasted. While everyone was maintaining regrets, things took a turn for the better, and a large number of Yangtze River saury emerged in the market, and many people were convinced.

Where do these Yangtze River saury come from? When encountering the Yangtze River saury, you should pay more attention, these saury may be obtained by merchants opportunistically, or even by breaking the law, and some of the saury are sea saury, that is, the saury that grows in the sea. There is almost no difference in the appearance of these saury fish, but those who know the goods can tell the difference in the middle as soon as they eat it, and the meat quality is quite different.

And there is another situation, that is, the Yangtze River saury that appears in the sky. In a pond in Jingjiang, Jiangsu, the precious Yangtze River saury appeared out of thin air, and the existence of the Yangtze River saury was accidentally discovered in 2018, and after five years, the number is increasing, and eight to nine can be fished out in one net, and the heaviest one is 166 grams. The reason why the Yangtze River saury can appear here is that the Jingjiang River section of Jiangsu Province happens to be the spawning ground of the Yangtze River saury, and by various coincidences, the eggs of the Yangtze River saury are injected into the fish pond and naturally hatched into a population here.

This coincidence made the big guy focus on the Jingjiang River, and found that there is a natural environment for the Yangtze River saury, which just meets its growth needs, and because of the large number of crucian carp populations in the Yangtze River region, including the Yangtze River saury, I believe that after the fishing ban period, we can taste the deliciousness of the saury again.

This kind of Yangtze River saury is different from the previous Yangtze River saury, and the Yangtze River saury sold on the market now is a very ordinary knifefish, which is a way for merchants to speculate.

It's because the value of this thing is very high and it can give them a certain amount of income, so they can still see him.

The nutritional value of the Yangtze River saury is very rich, but after the fishing ban, the saury still exists, and the fishing ban is also for the better sustainable development of fish resources.

The so-called "river knife" and "sea knife" are actually the same kind of fish. The saury usually lives in the sea, from February to March every year from the sea into the river, and traces the river up for reproductive migration, until the small fish is a little longer, and then along the Yangtze River out to sea, and the cycle repeats. When the saury fish goes upriver along the Yangtze River, it is the "river knife"; Those that do not migrate or have not yet migrated in the sea are called "sea knives"; The saury that settles in the lakes of the Yangtze River basin and no longer goes to the sea is called "lake knife".

Due to the special habits of the saury, it is very difficult to breed artificially, the saury on the market is fished, and because the river knife tastes the most delicious, it is usually more than ten times that of the sea knife and the lake knife, and the river knife reaches its peak before the Qingming Festival every year, and the highest is around 10,000 yuan per catty.

On April 2, 2012, at the Yangtze River "Saury King" public auction held in Yonglian Village, Zhangjiagang City, Jiangsu Province, a Yangtze River "Saury King" with a length of 325 centimeters and a weight of 325 grams was auctioned at a sky-high price of 59,000 yuan, equivalent to 182 yuan per gram, which is comparable to the first price more than three years ago. The picture shows that this saury was certified as the "largest Yangtze River saury in 2012".

In addition to the deliciousness, the delicate "reputation" of the Yangtze River saury is outside, and the saury will "die of breath" after four or five minutes out of the water.

It dies at the touch and cannot be artificially reproduced.

Wild numbers are scarce and endangered.

In addition to the deliciousness, the delicate "reputation" of the Yangtze River saury is "famous", and the saury will "die of death" after four or five minutes out of the water, which really brings great challenges to the artificial domestication of the Yangtze River saury.

He Wei, a professor at Shanghai Ocean University, said that the artificial breeding of saury has really given experts, including him, a "dismount". "For example, the reason why the four big carp can be artificially cultivated in a large area is because their ecological laws are relatively easy to grasp, and they are artificially injected at the beginning of domestication to make them reach the state of spawning. But all flat-bodied aquatic organisms are very difficult to reproduce artificially, like the saury, no one has ever tried it, and it doesn't know how to inject it at all; Another of the biggest headaches, the saury is so expensive that it almost dies at the slightest touch.

He Wei analyzed that the Yangtze River saury is extremely sensitive to water currents and even sound waves, "It is not easy to raise it, so there is no successful way to breed it." ”

Zhangjiagang. Six taels more.

There is less fish, it is delicious, and rich people are willing to spend money, which is naturally expensive.

As early as 2012, the first full artificial breeding of the Yangtze River saury in the Yangtze River Rare Fish Breeding Base Research Center under the Zhongyang Group has been successful, just because the saury breeding technology has been successful, but it needs to be marketed for a long time, and the current artificially cultured saury has not been sold in a large area.

1. Difficulties in the artificial breeding of saury:

2. The world's problems of artificial cultivation of saury have been overcome

Because the saury is known as the first fresh in the Yangtze River, it is not cheap, resulting in some people for economic interests for the saury overfishing, in order to protect this species, the agricultural department has issued a ban on wild saury fishing, with the protection of wild saury, so that many people see the business opportunities of artificial breeding saury, it is in this situation,in the country back in 2004Zhongyang Group, which is engaged in the research of rare fish resources in the Yangtze River, began to study the artificial breeding of sauryAfter eight years of hard work and exploration, they finally overcame this worldwide problem in 2012 and successfully achieved the first artificial breeding.

Later, with the increasing protection of wild saury by the agricultural sector, the knife fish has risen wildly and is out of stock in most places, and the artificially cultivated saury has finally ushered in spring in the past two yearsDriven by huge business opportunities and interests, many interested aquaculture enterprises have increased their investment in artificial cultivation of saury and the training of scientific researchers, followed by Shanghai, Hai'an, Jiangyin, Yixing, and other cities have announced the successful realization of artificial cultivation of sauryWith the continuous progress of technology, the taste of artificially farmed saury is getting closer and closer to that of wild saury, and it is believed that more and more artificially farmed saury will be sold on the market in the near future.

The Yangtze River saury has relatively high requirements for the growth environment, and artificial breeding cannot meet the conditions it needs.

Because it is an endemic species of the Yangtze River, the living environment is also very harsh, and artificial breeding cannot be satisfied.

Because the requirements for the living environment are very strict, many people cannot breed.

Because it is very difficult to cultivate saury in captivity, there has been no artificial farming.