The sunfish is not a native species in China. Since it was discovered in the wild, the wild population of the sunfish has been expanding and has a tendency to flood. But people who have eaten it know that the meat of sunfish is still very delicious, and its spines are relatively small, so it is easy to eat, and it is loved by many people. So the question is, why are sunfish flooding in China? If you let go of eating, can it solve their flooding problem?

Sunfish from afar

Sunfish is a kind of freshwater fish from North America. It is relatively common in the southern United States and Mexico. They are medium in size. The adult fish can generally grow to about 25-40 cm. The more common one in China is 50 cm. -100g or so, occasionally larger ones are caught. The biggest feature of sunfish is that they are very beautiful. They always have brilliant colors on their bodies and look like rainbows. In addition to being beautiful, sunfish also tastes very good. In the 1960s, Japan first introduced sunfish and gradually expanded its farming. As originally thought, they were just trying to add a treat to the table, but apparently the Japanese underestimated sunfish, which multiply unchecked in freshwater all over Japan and quickly flooded to become the only advantage in some lakes fingerlings, which push native fish to the brink and disrupt the ecological balance.

Where do Chinese sunfish come from?

China began to introduce sunfish in the 1990s, initially mainly for ornamental fish, but because of people's private release and other issues, sunfish soon fell into the wild. China's freshwater environment is very suitable for sunfish to survive, plus they have few natural enemies, and they also began to reproduce rapidly. Shengzhong Lake in Sichuan Province is one of the hardest hit areas for sunfish flooding. One fisherman caught 20 or 30 sunfish in only half an hour. These fish seemed to be hungry, one after another. One hook. The bites are so fierce, you can imagine how domineering they are in the water. Not only Shengzhong Lake, Yelang Lake in Guizhou, Qiandao Lake in Hangzhou, etc., there are countless lakes "occupied" by sunfish. Many fishermen say that no matter where they go fishing, there will definitely be a few sunfish.

The number of sunfish has increased. Are they like scavengers, a kind of useless fish that everyone shouts for? In fact, the opposite is true. Sunfish are edible and delicious. It is a perch and tastes similar to the perch we often eat. Since it can be eaten, it is enough to let people eat it openly, just like crayfish, maybe in the end, sunfish will be artificially cultivated. This idea is actually very naive. Whether it's crayfish or sunfish, no invasive species has ever been "killed" by humans.

Crayfish also flooded

In the eyes of the Chinese people, crayfish are almost eaten as an endangered species, but did you know that crayfish is a properly banned species in Japan, not only prohibited from trading, but even released. what about this? Because the reproductive capacity of crayfish in the wild is too strong, people can't handle it at all. After the introduction of crayfish in Japan, it didn't take long for them to flood the fresh water, even more serious than the sunfish, and local governments had to spend a lot of money to manage the crayfish.

In China, people eat crayfish that are farmed and meet hygienic standards. Crayfish in the wild are so dirty that they are not edible at all, so they cannot be eaten by humans. In the Yunnan-Guizhou region of China, crayfish once flooded. They have strong survival ability and few natural enemies. They can not only eat crops, but also destroy dams, causing great damage to the local area.

Looking at sunfish, although sunfish can be eaten, wild sunfish cannot guarantee that they are all clean. In addition, sunfish have strong reproductive ability, grow fast, and mature in a short time. Female fish can lay 60,000 eggs at a time. If left alone, it will not take long for a lake to become sunfish, even if it is eaten May finish. Not only sunfish, there are actually many fish around us. They can be eaten, but they are still flooded. Tilapia is also a good example. They were first introduced to China and hybridized, just as edible fish. raised.