Songhua River fish species are ao hua, bream hua, crucian carp hua, Zhe Luo, Faro, Yaluo, Huluo, tongluo and so on.
The "five Luo" refers to Zhe Luo, Faro, Ya Luo, Hu Luo, Tong Luo, the first two Luo is a large fish, the last three Luo is a small fish. The first of the five Luo Luo is Zhe Luo, also known as Zhe Luo salmon. Faro, also known as bream, is similar to bream in size but wider than bream. It is also considered a large fish, but it is quite a bit smaller than the roach, and can grow up to about ten pounds.
The rest of the three Luo, Ya Luo, Hu Luo, copper Luo, are small, small Luo is small, but the water is precious. These three Luo because of its small, thin belly, easy to rot, very few internal transportation, not to the river, it is rare to taste, is therefore, extraordinarily valuable.
Fish characteristics
1, living in the water
All fish live in the water, even if some can be a short time out of the water, but long-term dehydration is not. The mudskipper, for example, can come ashore at low tide to feed, but it will certainly return to the water before it is killed by the sun. The ones that stay out of water the longest have to be the African lungfish, which burrows into the mud during dry periods in rivers and hibernates on trace amounts of water until there is water again.
2. Breathing through gills
One of the reasons fish live in water is that they breathe mainly through gills. Unlike the lungs of terrestrial animals, gills need to be in a moist state to work properly, and when water flows through the gill filaments, the blood vessels that make up the inside can complete the exchange of oxygen. However, there are also fish that can breathe with the help of other organs, such as mudskippers that can breathe with their intestines, and fish in the family Siluridae that have gill epiglottis, which can obtain oxygen from the air.
3, swim with fins
Since living in the water, always need some means to help it swim, fins is the fish swimming helper, it is usually divided into five categories, respectively, pectoral, ventral, dorsal, anal and caudal fins, a few fish also have adipose fins. Different fins serve different purposes, but basically they all maintain balance, with the caudal fin also providing power and turning, which is especially important for the fish.