In the 1980s and 1990s, Fushou snails, tilapia and Egyptian catfish, are definitely the three major invasive aquatic products, I just talked about tilapia last time, there are many brothers who oppose tilapia, you don't understand its flesh is very delicious, delicious, how can you say that it is a harmful fish? Some people even say that he is much more delicious than the four big fish. I have never denied the benefits of tilapia, and I also think that tilapia tastes good, but from a practical point of view, the price of tilapia is indeed much cheaper than the grass carp and bighead carp of the four major fish, such as tilapia is seven or eight dollars a pound, but grass carp is basically more than twelve yuan a pound. You want to know that we as farmers obviously raise grass carp, I raise big head fish, and as a result, you bring me a pool of tilapia, that is very devastating, so tilapia as an invasive fish, but also the nightmare of our children as a child, this view I still have not changed.
Today I would like to talk about another protagonist, Fushou snail, which seems to me to enter our lives at the same time as tilapia. It's just that one is edible, and the other is really annoying. I remember when I was seven or eight years old, I suddenly found that the whole field stream was full of Fushou snails, and then the eggs of these Fushou snails were all over the field.
We are very depressed, because this Fushou snail eats vegetable leaves and crops, so it still belongs to the harmful snail class. But it is undeniable that the breeding speed of Fushou snails is really too fast, as if overnight, all of them are Fushou snails. Especially after the rice is cut every year, the whole field is full of Fushou snails. At that time, we would still go to pick up Fushou snails to sell, and at that time, a pound of Fushou snails could sell for a dollar. You can think about it, a pound of Fushou snails sold for a dollar, the money at that time was not the money of now, oh, at that time the rice was only eight cents, and now the rice has been three or four pieces, so many people on weekends and even some adults are usually going to pick up Fushou snails, and more people can pick up hundreds of yuan a day.
In addition, later we heard another news, that is, on the other side of our national highway, a processing factory for Fushou snail was suddenly opened, which was to process the canned fushou snail, which we could never accept, after all, how can Fushou snail be eaten? It is also processed into canned food, so we can look for it, as long as it is a brand of canned food, we dare not buy it! In this way, after more than ten years of scenery, FushouLuo disappeared like a mysterious guest. Later, when I went back to my hometown, I couldn't see fushou snail anymore, I said what was the situation? I said that the wonderful scene before, how did it suddenly disappear? Anyway, there are various theories, I summarize it, there are probably several legends:
The first is to say that the Fushou snail is a very fragile thing, I have seen the Fushou snail, the reproductive ability is very strong, but I have not seen its fragile side. In the period when Fushou snail began to invade, the use rate of pesticides was not very high at that time, and in the following years, the pesticide use rate increased steadily, and as a result, the water quality in the field was full of pesticide breath, and the pesticides in the back were the whole life of Fushou snails. This is a saying, because the same situation is that we can't see leeches in the field, and some people say that leeches are also like fushou snails, which are killed by pesticides.
The second theory is that the Fushou snail was picked up by someone, although the breeding ability of the Fushou snail is very strong, but it also has a high economic value, for example, I just told you that a pound of Fushou snail can be sold for about a dollar, at that time we farmers went to work, the daily wage was only thirty or forty, you can pick up seventy or eighty a day fushou snail, then how many Fushou snails do you say to pick up? Slowly, I finished picking up the Fushou snail, which is also another way of saying it.
The third theory is that there are natural enemies, saying that there are no natural enemies when the Fushou snail comes in, and then there are natural enemies slowly, for example, there are all kinds of birds, all kinds of fish to eat, especially when the Fushou snail is small, the fish to eat them, it is still very easy, but I can't imagine that the Fushou snail is more than the field snail, but the field snail is not extinct, the Fushou snail to its own demise, compared to the fushou snail can be prevented from the function is much larger.
Fourth, my own guess is that the Fushou snail is still too high-profile, for example, when he is crazy, the whole field is full of Fushou snails. Are you low-key, is it not good to sink in the water? It runs around, and the eggs of the Fushou snail are laid on the weeds on the surface of the water, this is easy to be found, but also easy to cause birds to eat, its eggs are still red, pink, pink that one, you say such a high-profile thing, do not destroy it, I think I am sorry for nature! This is a funny guess on my part!
Fushou snail and tilapia entered our childhood vision together, but tilapia is still alive and happy, but Fushou snail has long been close to extinction, it is really different from the fate of the same person. Of course, for exotic species, it is certainly a good thing to be able to go extinct! We want to go back to when we were young, the world where there were no tilapia and no fushou snails.