What are the four major fishing grounds in the world?

Hokkaido Fishing Ground in Japan, Beihai Fishing Ground in Britain, Newfoundland Fishing Ground in Canada, Peru Fishing Ground in Peru. 1. Hokkaido fishing ground is located in the waters near Hokkaido in the Kuril Islands cold current and Japan warm current. It is rich in plankton, so there are dense schools of fish. This is the largest fishing ground in the world. The intersection of cold current and warm current will disturb the sea water, and the submerged sea water will bring nutrients to the sea surface, thus making plankton flourish, and then providing rich bait and rich fishery resources for fish. The main fish species in Hokkaido fishing ground are salmon, pollock, Pacific herring, sardines in the Far East and saury. 2. Newfoundland Fishing Ground, located on the coast of Newfoundland, was once one of the four largest fishing grounds in the world. It is formed by the confluence of Labrador cold current and Gulf of Mexico warm current in the waters near Newfoundland. 1534, John Capote, a western European navigator, accidentally discovered the Northwest Passage while looking for it. Unusually rich fishery output, it has the reputation of "stepping on the back of cod". However, after centuries of wanton fishing, especially after large mechanized trawlers began to operate in fishing grounds in 1950s and 1960s, Newfoundland fishing grounds gradually disappeared, and disappeared after 1990s. However, it is still marked as one of the world-famous fishing grounds in the geography textbooks of high schools in China. 3. Beihai fishing ground is a fishing ground formed by the intersection of the North Atlantic warm current from the Arctic and the East Greenland cold current. Cold current and warm current meet here. There are many kinds of fish here. Mainly produces herring, mackerel, cod and other fish. It is one of the four major fishing grounds in the world. 4. Peru fishing ground is a world-famous fishing ground, rich in aquatic resources, rich in more than 800 kinds of fish and shellfish. There is a strong Peruvian cold current along the coast of Peru. Under the action of westerly winds and southeast winds prevailing all the year round, the surface seawater deviates from the coast and the lower cold water overflows. It provides extremely favorable conditions for the reproduction and growth of cold-water fish, especially _ fish (like cold water below 20℃). Therefore, the coastal area of Peru has become a large fishing ground with a fishing area of about 370 kilometers wide.