the principle of net fishing: it mainly uses the gregarious nature of fish.

after the net is spread, wrap the fish. Because fish are gregarious animals and have gregarious characteristics, when the net is closed, no fish will escape from the bottom of the net alone, but they are all waiting for everyone to run away in panic. Will eventually be captured.

The edge of the fishing net is covered with pendants made of lead. After the net is spread, it quickly sinks to the bottom of the water. When it is pulled up, it slows down, and the pendants will gradually close against the bottom of the water. Then lift it slowly. The fish caught in the net won't fall because of the pendant.

In natural rivers, fishing with nets is not illegal as long as it doesn't violate the local regulations on the fishing season. If someone contracts the corresponding waters in the big river, they can't fish in it, which involves infringing on other people's property. It is illegal to use fried fish, poisonous fish, electric fish and other methods to destroy fishery resources for fishing.