Lead
Shandong caught a Yellow River saury at the mouth of the Yellow River, which is believed to have been found again after nearly 30 years of disappearing in Shandong.
For a while, people speculated whether this was because the saury population had recovered to the point where it could be eaten.
However, local experts said that the saury was not a wild saury, but was lost in the process of artificial breeding.
So what has the saury been like over the years?
Why is it that the saury, which was once called the "head of the three freshies of the Yangtze River", may not even be wild?
And what is the difference between farmed saury and wild saury?
1. Migratory spawning fish.
It is not unusual to catch the Yellow River saury and anchovy in Xiapu and the Yellow River estuary, after all, these places are rich in aquatic resources, and there should be many fish species in the waters.
But to people's surprise, the Yellow River saury caught in the Yellow River estuary has disappeared here for nearly 30 years, which is surprising.
So what's going on here?
To trace the origin of saury, it is necessary to trace it back to the Yangtze River and the waters of the Yangtze River basin.
There are many fish species in the Yangtze River, and the saury is one of them, and it is a migratory spawning fish.
There are many species of saury in the Yangtze River, both wild and farmed.
A long time ago, people were the only farmed fish in an environment where they "cultivated" saury according to their own requirements.
But at that time, the cultivation of saury was extremely difficult, because the breeding of saury was not the same as that of other fish that had been domesticated by humans, and the saury was a migratory spawning fish, and even different schools of fish were spawned separately in different seasons and places.
This makes it impossible to keep the fish in captivity in the Yangtze River and catch the saury for their own use, because not only does the saury not lay its own eggs, but it can also make the spawning environment full of competitors, thus affecting the hatching of small fish.
Some people even thought of loading fish roe and then raising them, but because there was no modern technology in those days, there was not even a fine amount of fish that could hatch from a fish's eggs.
It didn't take long for people to start thinking that the plan to raise fish eggs was not so reliable.
Therefore, migratory fish on the Yangtze River were first treated as an important resource, and simply waiting for natural fish production is the best policy, and it is not worth reducing the number of fish.
However, this will greatly reduce the number of fish in the Yangtze River in the future, so there is another way, which is to lay eggs from underground fish in the mouth of the Yellow River and other places where the Yangtze River flows into the sea.
But these two rivers into the sea there are a large number of sturgeon spawning, which there are many precious sturgeon species and blood, in situ breeding saury must be mixed with sturgeon eggs, this is like blindfolded eggs, which will cause very large economic losses, so people began to pair the multi-hatching period of the fish roe Niang together at the right time, so that the fish eggs are the fish eggs that people want.
This method of fish farming has become much easier, but it does not mean that it is possible to start farming saury in large quantities.
Second, the number of saury.
Soon, with the improvement of people's lives, consumer demand is slowly increasing with people, and it is time to raise eggs and fish.
But I don't know who started it first, but soon, there was a headache between production and sales, and every year a large number of saury and anchovy fry from the Yellow River estuary and the Yangtze River basin were put into it, and then the valuable fish were just born and sold.
Even without any protection, this process has been going on for a long time, and then the number of saury has been declining due to water pollution and poor supervision by the local government.
This phenomenon did not immediately attract people's attention, until the price of saury rose all the way to an outrageous point, and people were shocked to realize that they could not afford to buy saury, so someone went to ask the vendor who had been selling saury all the time, why he didn't sell it now.
This attracted people's attention to whether the number of saury fish was normal, and after a series of investigations, it was discovered that the number of saury fish had decreased sharply.
But at this time, wild saury has long become rare, and there is no way to fill the gap in the market "skylight", and artificially farmed saury has changed greatly from wild in terms of body size and fat thickness because of the process and living environment.
The size of the fish has become smaller, and the thickness of the fat has also decreased a lot, so it is said that the farmed saury does not have a strong taste as the wild one.
As a result, the price of saury has soared, exceeding the affordability of ordinary families, so few people cook saury dishes at home.
Relatively speaking, the pressure brought by the living environment to the saury and other fish in recent years has also decreased, in a sense, the saury has gradually faded from everyone's memory, at this time, suddenly someone caught the saury in the Yellow River estuary in Shandong, which makes people naturally interested in the saury, but experts think this is a misunderstanding, what is going on?
As a freshwater fish, the saury does not belong to the waters of the Yellow River estuary, and along the flow of the river, the saury in Shandong cannot reach the Yellow River estuary area at all.
At the same time, in order to ensure the reproduction of saury, the Yellow River estuary and other places where the Yangtze River enters the sea have been closed and closed to fishing, in order to protect and restore the ecological balance of the waters, so there can be no wild saury in the Yellow River estuary.
After studying this saury, experts found that this saury is different from wild saury, and there are many fish eggs and some foreign bodies that are difficult to produce in the natural environment in the stomach, so it is judged that this saury was washed away during the breeding process of seed propagation.
3. Artificially bred saury.
Nowadays, there is a good reason why saury is called "the first of the three freshs of the Yangtze River", what is the taste of saury that can make people call it the first of the three fresh?
In fact, the nutrient richness of the saury is incredible, and from a nutritional point of view, it is simply a representative of a delicacy.
Saury is rich in protein, fat, minerals, vitamins and other nutrients, making it an ideal fish for consumption.
Because of its migratory spawning, the saury is very rich in protein, and at the same time, it is also very tender, not easy to age, and has a delicious taste, so it is called the three major characteristics of the saury.
However, saury is a very calorie-rich fish, and its fat content has reached more than 10%, which for many people, they will feel that this ratio is already very high, so it is matched with the high lipid characteristics of saury.
The calories will be higher, but high calories do not mean unhealthy, more fat is not necessarily a bad thing, many times fat is more helpful to the health of the human body, as we often say, we must eat less brain, in fact, the main component of the brain is fat.
Of course, it is not that the saury is only good, the difficulty of the saury to reproduce is quite large, and for various reasons, the number of saury has plummeted to the extreme over the years, and even the seeds of seed propagation are difficult to recover.
Can only hope that Jackie Chan took out some seed fish, and then handed over to the fish farm and seed breeding center to raise fish, but many people do not know that the farm is not only raising fish, but also to carry out a timely "closing" operation on it to prevent someone from putting fish in it when there is water, and even directly in the farm to exchange the juvenile fish for large fish to sell, these behaviors will directly lead to the number of saury fish in natural resources, is gradually destroyed.
As some people say, if all the ponds where the fish can be raised are closed, then some freshwater fish that live in a similar environment to the fish will not even have a living space.
Relatively speaking, the size of the saury raised in the breeding center is very uniform, and the fat content is ridiculously high, so the artificially bred saury and the wild saury are completely two different things.
epilogue
Therefore, if the breeding of the saury is not successful, you can only start from scratch, after all, there are too many differences between artificial breeding and wild breeding, even if there are only so many saury to breed, it is too cruel, so a small part of the saury can still be released to breed, of course, these breeding are still very different from the wild artificially bred fish.
In the future, if there is no new way, it may never go back, and only some people can be very lucky to taste the saury eaten by their predecessors, so in the future, explore on this road, not only this road, maybe there are many more, maybe you can find a positive way, even beyond the way of the ancestors.