Scavengers are rampant in China, but why did they disappear in India?

Because India is surrounded by the sea on three sides, and India is rich in inland water resources-rivers, ponds, lakes, reservoirs and floodplain wetlands, India catches and raises fish in various ways through seawater and internal water, and basically obtains abundant fish resources every year, which not only sells itself, but also exports to many countries in the world, making India the second largest fishery producer in the world.

Scavenger, the scientific name of leopard catfish, originated in South America. The main way to invade China is human abandonment. After scavengers enter rivers in China, they have no natural enemies and often feed on the eggs of local fish, which is extremely destructive to local fishery resources. In addition, because the sweeper has a hard skull and is covered with a thick layer of armor, we are helpless about it. It is famous for its food culture. Therefore, fishermen are basically buried or exposed after fishing, but it is difficult to resist the increase of scavenger population.

At present, this is the case in China, and the situation in India next door is similar to ours. Indians will never feed on this kind of fish. Occasionally, this kind of picture appears, or the description after the trip to India is actually exaggerated. It is possible that Indians really roasted this kind of fish, but the high probability is that this kind of fish is very similar to scavengers in appearance. Its head is covered with hard bones and its shell has scales, but the lower surface of its head and abdomen is bare and soft, and there is still a beard in its mouth. Compared with street sweepers, it has a certain probability of early adopters.

Basically, it is said that the street sweeper was barbecued by Indians in India, and some people said that "sprinkle some curry and the children next door will cry." Or someone joked about the Ganges River in India, saying that street sweepers would not have a childhood in the Ganges River and would be smoked to death. In response to this question, I specially consulted the Indian students who came to our school that year and confirmed that the remarks about being eaten were just a joke. The truth is that India has also been invaded by street sweepers, along with its close relative "sucker armored catfish". To this end, Indian scholars have published research papers for a long time.