Yesterday, netizens saw that even the hairy crabs on the microblog can be seen in the transparent shoulder pole. Experts said that the scientific name of this transparent fish is big silver fish, also known as noodle fish, which is a carnivorous fish; and the fish it eats is Lake anchovy, commonly known as saury.
Net drying 'transparent fish'
You can see the little fish in your stomach
Yesterday, the hairy crab of "shoulder pole sister" tweeted: "today, I saw a fish (13 cm long) in the lake area. This fish ate a small fish with a transparent stomach. I can see the fish in the stomach at a glance. '
'transparent fish 'microblog soon aroused heated discussion among netizens. Some netizens thought it was' fake' and 'two fish were frozen together'; some netizens suspected that 'the fish eaten was not small, how did it eat it'; some netizens thought 'transparent fish ate another fish under the skin'; some netizens thought 'it was propped to death'; some netizens even thought 'it was pregnant with a fish and was about to produce'.
Gaoyou Lake District has set up a protection area for it
Sun Wenxiang, director of the fishery administration department of gaobao Shaobo lake fishery management office, after seeing the photo of 'transparent fish', said that this fish is a big silver carp, which is also known as a rolling pin fish (with a slightly round body) by the fishermen in the lake area; while the fish eaten is Lake anchovy, which is commonly known as hairy saury by the fishermen in the lake area.
Sun Wenxiang said that the big silver carp has no scales, its body is transparent, and its meat is very delicate. It is one of the characteristic aquatic products in the lake area. "Because the body is transparent, you can see not only the food you eat, but also the viscera. '
Silver carp is an annual fish. At present, it is the breeding and spawning period of the big silverfish. The female of the big silverfish has a large amount of eggs. They like to go to the frozen waters, and even use the ice blade to scratch their belly to lay eggs. "Fishermen call this behavior" ice rubbing ". After laying eggs, the big silverfish will soon die.
Sun Wenxiang said that the big silverfish is a fierce fish in the lake area, and its prey is mostly small fish and shrimp. "The big silverfish can grow to the length of chopsticks, and can eat many small fish in the lake area, such as diner fish, white striped fish, small crucian carp, hairy swordfish and so on. '
'the mouth of the big silverfish is relatively large, and the lower jaw is slightly longer than the upper jaw, which helps it to eat the bigger fish. According to sun Wenxiang, the silverfish can eat 33% - 68% of its total length of food fish, which is far higher than the other carnivorous fish, Erythroculter erythropterus, in the lake area. Erythroculter erythropterus can only eat 20% of its total length of food fish.
According to sun Wenxiang, in recent years, the population of silverfish in the lake area has shown a downward trend. Therefore, Gaoyou Lake has set up a national aquatic germplasm resources protection zone for Coilia nasus, with a total area of 4457 hectares, including 996 hectares of core area and 3461 hectares of experimental area. The special protection period of the core area is the whole year.