Mackerel is widely distributed in China, from Songhua River and Nenjiang River in the northeast to the middle and lower reaches of Yellow River and Pearl River. There are also rays in heather, Guizhou, Guangxi and other provinces. There are also rays in the lakes of Suzhou and Hangzhou.
Living habits of pike: pike mostly lives in the middle and upper layers of water, and likes to gather and travel in groups in rivers, lakes, reservoirs and mountain streams. In the clear air, people can see groups of rays swimming in the upper water for food. On stormy days, rays also sink into the water. Papilio is a carnivorous fish, which feeds on small insects, small fish and shrimp in the water. If there are artificial fry in the water, the pike will swallow them, so the pike is considered as a harmful fish.
Where do pike usually grow?
The horse mouth fish is a kind of stream fish. It likes to live in the upper and middle waters with clear water, low water temperature, fast water and aquatic plants. It usually moves in groups and often swims and lives with mackerel. Require high water quality, clear water and high dissolved oxygen. The horse mouth fish is agile, leaping, fierce and gluttonous. It is a carnivorous omnivorous fish, mainly feeding on small fish and aquatic insects in the water. Although the pike mainly eats meat, it can also eat grass seeds, tree seeds, algae and commercial fish feed when the bait is insufficient. Therefore, the artificial compound feed can be used for training and breeding in pike culture.
The growth rate of horse mouth fish is relatively fast, especially in the first year. The fry propagated in that year can reach 7- 1 1 cm after about 100 days. 1 year-old mackerel has reproductive ability, and the reproductive period is mostly concentrated in June-August, and it lays eggs in shallow water with sandy bottom. Red deer is a kind of fish that lays eggs many times a year. Its fecundity was reported by Jin Bai and Jin Kewei in 1982. The absolute fecundity is 8207, and the relative fecundity is 44/g body weight.
Taguchi is widely distributed in the river basins from Heilongjiang to Hainan Island in central and eastern China, and mostly lives in streams and rivers in central and eastern China. It is common in streams, rivers and reservoirs in the mountainous areas of central and eastern Jilin Province, especially some valley reservoirs.
Edible value of maw fish.
Although the rays are small, they are nutritious, rich in protein and fat, and low in fat. Like other fish, it can supplement the calcium needed by the human body and is rich in dha, which is very beneficial to the brain development of the fetus.
Copyright no.5 network.