Living habits of common freshwater fish?

Fish that live in waters with salinity below 0.05%. Generally, it can be divided into primary and secondary categories. There are more than 8,400 species of freshwater fish in more than 30 orders in the world, including 1 1 order and more than 4,050 species of native freshwater fish.

There are more than 850 species of freshwater fish in China with orders of 13. There are many kinds of freshwater fish in the world, including CYPRINIDAE (more than 2420 species), Siluriformes (more than 22 10 species) and CYPRINIDAE (more than 1330 species). There are many Cypriniformes (about 600 species) and Siluriformes (more than 80 species) in China. ?

Extended data;

Freshwater fish culture varieties:

1, grass carp

One of the four major fishes in China, a typical herbivorous fish. With rapid growth and wide sources of feed, it is the main object of freshwater fish culture in China. Because of its special habits, grass carp has been transplanted all over the world as a pioneer.

2. Carp

It is one of the freshwater fish with the largest species, the widest distribution and the longest aquaculture history. Cold resistance, alkali resistance, hypoxia resistance and strong adaptability. It is an omnivorous fish.

3. Carassius auratus

Crucian carp is a common freshwater fish, which mainly feeds on aquatic plants and plankton. Because its fish is rich in trace elements and minerals, it is delicious on the table and has strong adaptability.

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