What types of freshwater fish are there? Common species explained all at once
When it comes to freshwater fish, everyone can actually name several species off the top of their head, but in a broad sense, fish that can live in freshwater with a salinity of 3 parts per thousand can be called freshwater fish. There are about 26,000 known fish species in the world, and about 8,600 species of freshwater fish. China currently has nearly 3,000 fish species, of which more than 1,000 are freshwater fish. Below are several common types of freshwater fish.
1. Snakehead
The snakehead is a freshwater fish, mainly distributed in the rivers, lakes and ponds of Africa and Asia. Snakehead meat is delicious and nutritious, deeply loved by consumers, and is a fish with relatively high economic value.
2. Grass carp
Grass carp is a typical herbivorous fish, inhabiting rivers and lakes in plain areas, generally preferring the middle and lower layers of the water and nearshore areas with abundant aquatic plants. It is lively in nature, swims quickly, and often forages in groups. During the juvenile stage, grass carp feed on larvae, algae, etc. Grass carp also eat some meat foods, such as earthworms, dragonflies, etc.
3. Common carp
Common carp, with Chinese aliases li guaizi, li zi, mao zi, and red fish. It lives alone or in small groups in calm ponds, lakes and rivers with muddy bottoms and dense aquatic plants. It has a migratory habit in places with small water areas.
4. Guppy
Commonly known as the guppy, also called fengwei fish, rainbow killifish, rainbow guppy, guppy fish, etc. It is a tropical fish of the genus Poecilia in the family Poeciliidae. Male and female fish differ greatly in body size and color. Adult male fish are slender, with a body length of 3-4 cm, brilliant and colorful body colors, and an elegant body shape.
5. Black carp
Black carp usually inhabits the middle and lower layers of the water and is inactive by nature. Its main food sources are river snails, mussels, corbicula clams, clams, etc., and it occasionally preys on shrimp and insect larvae.
6. Silver carp
Silver carp inhabits the upper layers of the main streams of rivers and affiliated water bodies. It is lively by nature and good at jumping. Newly hatched larvae drift with the water; juvenile fish can actively swim into river bays or lakes to feed.
7. Bighead carp
It lives in the middle and upper layers of river main streams, gentle river bays, lakes and reservoirs. From fry to adult stage, it mainly feeds on zooplankton and also eats phytoplankton. It is a typical plankton-feeding fish. It is native to China.
8. Crucian carp
Crucian carp is mainly an omnivorous fish that feeds on plants. It likes to move in groups and live according to food availability. Its meat is tender and highly nutritious. Every 100 grams of meat contains 13 grams of protein and 11 grams of fat, and also contains a large amount of minerals such as calcium, phosphorus and iron.
In summary, the above are common types of freshwater fish in daily life. There are actually many, many more, and everyone can add them one by one in the comments.
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