Interpretation: Cod has a slightly flat body, a big head and a small tail, a beard on the lower jaw, a grayish brown back, many small black spots, three dorsal fins and a grayish white abdomen. The liver can make cod liver oil. Also known as sole fish.
2. Type
(1) Cod usually refers to the Codeorder, which is a big family in the marine world. There are about 500 known species, which are the main targets of marine fisheries. 1996 The global cod catch reached 107 1 10,000 tons, accounting for 12% of the total marine fishery output. The main fishing species belong to Pinnaceae, Haddock and Pinnaceae. There are more than 50 species of cod in the world, most of which are distributed on the continental shelf of the North Atlantic. Important species are Pacific cod, Atlantic cod, haddock, blue cod, green cod, marlin, Norwegian long-arm cod and cod.
(2) pollock is an important species in the family Codidae, which is a cold-water pelagic fish widely distributed in the North Pacific Ocean, starting from Hainan, Japan along the east coast of Russia, passing through the Bering Sea and Aleutian Islands, the south coast of Alaska and the west coast of Canada to central California, USA. Bering Sea and Okhotsk Sea are two important fishing grounds. Cod is an economic fish, with a high catch and a maximum annual output of more than 6 million tons. 198 caught 4.094 million tons, of which Russia and the United States accounted for 86. 1%.