2. The giant salamander, also known as the giant salamander, belongs to the family Amphididae, with the scientific name Andriasdavidianus. It belongs to amphibians.
Giant salamander is a carnivorous animal with a wide range of food habits. It thrives in mountain streams for generations, feeds on freshwater aquatic animals, and can also eat marine fish and shrimp after domestication. In some coastal areas, freshwater fish are scarce, and marine fish are abundant and cheap. After artificially changing the feeding habits of giant salamanders, giant salamanders can also eat marine fish. Although the giant salamander has a wide range of food habits, it is still selective about food. It likes to swallow fresh bait and does not eat rotten fish and shrimp.
Under natural conditions, the occurrence rate of crab in the stomach contents of giant salamander is the highest, reaching 48.3%~66.7%; Secondly, fish is 12.5% and shrimp is 10.4%. In the experiment, the Chinese mitten crab and marine crab were fed, and the giant salamander ate less. It may be because there are fewer fish in the stream and it is difficult to catch, while there are more crabs, which are slow and easy to catch.
Giant salamander is an endemic species in China, and it is commonly called "giant salamander" because its cry is like a baby crying. The heart structure of giant salamander is special, and some reptilian characteristics have appeared, which has important research value. Because the meat is delicious, it is regarded as a treasure, and it has been killed. The resources have been seriously damaged and need to be protected.
Giant salamander is mainly produced in North China, Central China, South China and Southwest China, and is often mistaken for general fish.