No matter in which country, there are invasive alien species, China is no exception, but China's invasive alien species, not all active invasion, some are artificially introduced, such as Fushou snail, Brazilian turtle, water hyacinth, large grass, African snail, etc., some are introduced as food, some are introduced as fodder for livestock, some are introduced as ornamental plants, and some are introduced as pets.
No matter what it was, later for various reasons, it was forbidden to raise and fast in china, and was blacklisted, especially like Fushou snail, Brazilian turtle, etc., just more than ten years ago, it was included in the blacklist of china's forbidden food.
Of course, not every alien species is the case, some exotic species have been carefully cultivated by people, but also become a hot commodity on the market, the most typical is the crayfish, now in Hubei and surrounding areas, crayfish has become a "signboard", by farmers a large number of farming. In the two Guangzhou areas of China, there is also such an alien species, it can only survive by eating manure, once flooded in the river and no one ate, and now farmers breed in large quantities.
(Pond mackerel in a stinky ditch)
This alien species is "pond catfish", its scientific name is called Egyptian bearded catfish, alias leather beard catfish, Egyptian pond catfish, in our country folk called "pond mackerel", from the name can be seen, it is a fish native to Egypt in Africa.
Pond mackerel introduced to China is not long, short is not short, almost close to 40 years of time, the earliest introduced from Africa to China's Guangdong region for trial breeding in 1982, in 1982 trial breeding success, and began to promote aquaculture in South China, Central China, to now, has also become one of the two Guangdong regions of China freshwater aquaculture high-yield species, by farmers and friends a large number of breeding.
However, although it is now very successful, there have been many unexpected situations during the period, resulting in the flood of pond mackerel and no one to eat.
(Flooded pond mackerel)
Friends who have farmed catfish should know that catfish is a fish with very high adaptability and fertility, and pond catfish are even more so. Pond catfish also belong to the catfish genus, and China's catfish look very similar, but friends familiar with them can distinguish at a glance, China's catfish have a total of 4 whiskers, and pond catfish have a total of 8 whiskers.
Pond catfish is more than catfish, because of its wide feeding, fast growth, large individual, low oxygen tolerance, easy reproduction, strong adaptability and other characteristics, can survive in almost any water, even in stinky ditches, cesspools, sewage tanks and other places, pond catfish can survive very well, someone has done experiments, the pond catfish thrown into the septic tank, found that the pond catfish only by eating feces, garbage and other "dirty things", can live for several months, and can also breed offspring.
(Artificially farmed pond mackerel fry)
Because of these characteristics of pond mackerel, someone once inadvertently released pond mackerel, causing it to flood some areas in the south of China, and these flooded wild pond mackerel because of the poor living environment, so during that time, pond mackerel was regarded as a garbage fish with no edible value and the dirtiest, so that no one dared to eat it.
However, these characteristics of the pond mackerel have also become its advantages, for many farmers, the pond mackerel is a very good fish species, as long as the cleanliness and feeding of the fish pond are guaranteed, almost do not have to care about it. And the pond mackerel because of the rapid growth, but also make it out of the pen rate is particularly high, generally a pond of anchovy fry, if you do not care much about it, a year can grow to more than 4 pounds of weight, and careful breeding, it will be larger, so that it can be farmed for almost half a year can be out of the pen.
(Pond anchovy hot pot)
As for its fertility, it is even stronger, artificial breeding, can induce birth 4 or 5 times a year, and can lay about 10,000 eggs at a time, so in the case of sufficient normal feed supply, the yield per mu can be as high as about 5,000 catties.
However, the good breeding of pond mackerel also brings disadvantages, that is, its market price is very low, in Guangdong and Guangxi, the pond price of pond mackerel is generally about 3 yuan a catty, which is a very civilian fish, so it is also very popular in the two Guangzhou areas.
Although pond mackerel once had a "black history", but now the artificial breeding of pond mackerel is still very delicious, the fish meat is tender, the fish bones are also less, and the hot pot is very good. But remember, if you fall into the pond in the wild river, do not eat, the earthy smell is too heavy, not to mention, there are all kinds of bacteria.
Friends, have you ever eaten pond mackerel? What do you think he tastes like? Feel free to leave a message and say your opinion!