Mackerel:
Don't call it Spanish mackerel. Fish, marlin, bamboo shark, string black. It belongs to Perciformes, Scomberomorus, Scomberomorus and Scomberomorus. Distributed in the western North Pacific Ocean, it is found in the East China Sea, the Yellow Sea and the Bohai Sea in China.
Morphological characteristics:
The side is long and flat, spindle-shaped. Generally, it is 25 ~ 50 cm long and weighs 300 ~ 1000 g. The largest individual is 2.28 meters long and weighs more than 168 kg. The tail handle is thin, with three raised ridges on each side. The central ridge is the longest and tallest, the head is longer than the body height, the mouth is big, slightly inclined, the teeth are big, the body is sparsely arranged, the lateral line is irregular and wavy, and there are two black circular spots in the center of the body. The first dorsal fin is long with 19 ~ 20 fins, and the second dorsal fin is short.
Extended data
Living habits:
The warm pelagic fish in the offshore mainly inhabit the shallow continental shelf, sometimes appear on steep slopes or lagoons, and even in estuary waters. I like living in coastal areas and waters where coastal water meets external seawater. Fierce sex, strong swimming ability, like clustering. The phenomenon of vertical movement day and night is obvious. The weather is clear, the tide is slow, the morning light is weak or it is raining in Mao Mao, and fog often floats on the water and jumps out of the water. When the water temperature is low, it often sinks into the middle water. The wintering ground is located at the water depth of 80~ 100 m from the southeast of the Yellow Sea to Wudao, 80~ 150 m from the south-central part of the East China Sea to the north of Diaoyu Island, and from the south of the East China Sea to the north of the South China Sea.
At the end of winter and the beginning of spring, the fish gradually moved away from the wintering ground for breeding and migration. The main food is small fish such as dike fish and shrimp. Male 1 year-old, female 2 years old, all reached maturity. The breeding period is from May to July.
Baidu encyclopedia-mackerel
Baidu encyclopedia-Spanish mackerel