The main reason for the phenomenon of lower catches and smaller individual fish during offshore fishing in China is ().

Nowadays, fish, shrimp and crab are the best food on the table, and many people like to eat seafood. But because of the seriousness of marine pollution, as well as people's overfishing, so a lot of marine life are greatly reduced, resulting in 90 percent of China's coastal waters have no fish can be caught, fishermen are also very worried, because they make a living, no fish can be caught means that shrimp and crabs and other slowly to be no more.

In the market, many fish have been in short supply, and gradually can only rely on artificial breeding to support people's dietary needs, and some fish resources have been in the overfishing, on the verge of extinction, and slowly disappeared in people's vision. In the 1980s, the yellow croaker was still very common in the Yellow Sea, but at present, the wild population has basically disappeared. Therefore, the wild yellowtail from once the most common home cooking, a leap into the price of luxury goods comparable to gold.

Some people went to Fujian province, China's largest yellowtail farm, and they did a photo shoot. According to local research, it was found that when high-quality big fish could not be caught in the sea, fishermen went back from the sea to the coast to do farming, to raise grouper, rhubarb and sea bass that could fetch high prices. But these fish are carnivorous, so the fishermen go to the sea to catch small fish and shrimp that have not yet grown to be feed.

Chen Dagang, a professor at Ocean University of China, has said that more than 90 percent of China's offshore waters have basically turned into an oceanic wasteland with no fish to catch. A major reason for the depletion of fishery resources is reckless fishing. Chinese fishermen also operate in a venomous manner, chasing after fish to salvage them, and with no fish in the offshore, fishermen can only venture farther out.

The phrase "no fish offshore" may be too absolute, but it's getting harder and harder to find fish in China's four major offshore waters -- Bohai, Huang, Dongfang and Nanhai. Of course, this can also be blamed on unscientific fishing methods. Although China's coastline is very long, but the per capita area of the sea is very small, in the world's marine countries ranked only 122, per capita fishery resources are only 30% of the global average.