Pollock is an important species of COD family, which is a cold water fish, widely distributed in the northern Pacific Ocean. From the southern part of Japan to the north along the eastern coast of Russia, the Bering Sea and Aleutian Islands, the southern coast of Alaska, and the west coast of Canada to the central California and Faroe Islands of the United States. The Bering Sea and the Okhotsk Sea are two important fishing grounds. Pollock is a kind of economic fish with high catch. The highest annual yield is more than 6 million tons. In 1998, the catch was 4.094 million tons, of which Russia and the United States accounted for 86.1%.
The body length of Pollock can reach 900 mm, which is 6.6-10.2 times of body height, 4.1-4.6 times of head length and 3.9-4.8 times of eye diameter. The ocular side is superior. The interocular space is smaller than the eye diameter. Mouth large, anterior, oblique. The anterior part of mandible is longer than that of maxilla. The chin must be about 1 / 2 of the pupil. There were 7 pieces of branchial membrane. The head has small round scales. The lateral line is anteriorly superior to the second dorsal fin and is in intermittent state. Dorsal fin 12-14, 12-18, 20-21, gluteal fin 19-23, 21-23; the first gluteal fin begins slightly in front of the second dorsal fin; the pectoral fin is 18-20; the abdominal fin 6 starts slightly in front of the pectoral fin, and the second fin is protruding into a filiform shape; the caudal fin is concave and forked. There were 6 + 32-34 branchial rakes and 50-52 vertebrae. One frontal bone. The lower operculum and posterior clavicle are very thick. There are 2-3 longitudinal dark macula on both sides. The dorsal and pectoral fins are dark olive, while the anal and abdominal fins are gray.
Pollock has high economic value. It has high protein content and low fat content. It is especially suitable for large-scale industrial and standardized processing. The equipment provided by Germany Bader factory is an expert in processing Pollock, with high speed and good quality. It can be processed into fish bone pieces with or without fish bone. There are fishing boats specialized in processing surimi. The surimi made from Pollock is white and delicate, with high protein content, rich nutrition and good elasticity. With surimi as the raw material, we can produce "ocean" brand seafood such as fish intestines, fish rolls, fish cakes, fish balls, crab sticks, etc., which is absolutely blue food. It is one of the important economic fishes in the sea of Japan.
It is the golden season to catch Pollock from December to March. The small screen of the fish detector is often shown in red. At the bottom of the sea 400 meters below the ice layer, the Pollock that has been accumulated for wintering alone is 200 meters thick. At that time, the fish activity was slow and the school was highly concentrated.
It is distributed in the Chukchi Sea and the coast of Canada from the Hainan end of Japan to the north of Bering Strait. Along the cold current, a few can reach the west side of the Korean Peninsula.
Alaska Pollock: Alaska Pollock is a member of the Gadidae fish family. The same family also includes real COD and haddock. It is mainly produced in the northeast of the east coast of the United States and the entire North Atlantic waters. Alaskan Pollock is small in size, white and tender in meat and low in oil content.
