Expand:
1, herring is a kind of blue fish, which is mainly distributed in the plain area south of the Yangtze River in China and rarely seen in the north of the Yangtze River; It is an important fishery resource in the middle and lower reaches of the Yangtze River and lakes along the Yangtze River, and is the main breeding object of lakes and ponds. It is one of the "four big fish" in freshwater culture in China. In addition, in Anhui, it is commonly known as "black mixed", "black mixed" or "snail mixed", which is named because of its dark body and its preference for snails. The common "herring" in Northeast China is not herring, but should be written as "mackerel", which is a deep-sea fish. In China, the largest herring specimen weighing 2 18kg was caught in Jinniu Lake, Liuhe District, Nanjing in 2005. It is 1.86m long and weighs 2 18kg, and it is about forty years old by scale identification.
2. Spanish mackerel is also known as Spanish mackerel (scientific name), teleost, Perciformes and Sparidae. There are many kinds of mackerel, such as mackerel, spotted mackerel and Kangshi mackerel. The common names of mackerel are swallow fish, mackerel, bamboo pod fish, pointed horse, green arrow and so on. Sharp teeth, agile swimming, fierce temperament, generally 0.26-0.52m long, the longest up to 1m, weighing 20kg. It is distributed in the western part of the North Pacific Ocean and in the Bohai Sea, the Yellow Sea and the East China Sea. It belongs to warm pelagic fish. It feeds on small pelagic fish, migrates in groups in summer and autumn, and some of them enter the Bohai Sea to lay eggs. In autumn, they often forage in groups near coastal islands and reefs.