What are the cold water fish, and what are the small cold water fish

Common cold-water fish are:

Salmonids, also known as rainbow trout, brown trout, and so on. Now it is a common breeding species in Northeast China.

Pikeidae, salmoniformes, white pike in Xinjiang region of China, cold-water fish, fierce and abnormal, no worse than the carp in the Yangtze River basin.

Sturgeon fish, Russian sturgeon, etc., typical Siberian cold-water fish.

Some species of loach family, northern loach, flower loach and so on, are mostly produced in the northeast.

Cod, burbot, and fish have many dorsal fins.

In addition, there are also some species of perch, cyprinidae, and sculptoididae that live in cold water baths, which can be regarded as cold-water fish.

If the rotundow class is also counted, then the lamp eel also has cold water.

The so-called cold-water fish is only a division of ecological types, and does not involve taxonomic status and anatomy, and can be said to be a strong definition of personal factors. Therefore, different scholars have different opinions on the classification criteria, some people think that the suitable temperature below 15 degrees Celsius is a cold-water fish, and some people think that those below 22 degrees Celsius are counted. According to a broad definition, there are 56 species of cold-water fish in inland waters in China, belonging to 12 families and 30 genera, among which salmonidae and cyprinidae are the main species.

There are many cold-water fish, scientifically speaking, the fish whose water temperature does not exceed 20 degrees and can survive normally and healthily are cold-water fish, so according to this calculation, the fish in the water in East China, North China, West China, Northeast China and other places all belong to cold-water fish, and the fish in the waters of the world except near the equator also belong to cold-water fish.

If it is a cold-water ornamental fish, then the public cold-water ornamental fish include various varieties of goldfish, koi, native fish of the three lakes and so on. Edible fish include blackfish, crucian carp, carp, bream, etc., and the vast majority of marine fish are also cold-water fish.

Colorful Angelfish, Blue Lightning Fairy, Blue Tang Kingfish, Golden Pineapple Fish, Pepper Red Dragon, Blue Line, Sunrise Dragon, Strawberry, Purple Back Strawberry, Flash Dragon, American Strawberry, Blue Cordon Bleu Quasi-Parselfish, Ashima Damselfish, Australian Damselfish, Double-banded Damselfish, Camel Horse Bream, Redtail Paraffin, Red Long-Bodyed Damselfish, Humphead Fish, Piaopiao, Pink Finch, Golden Piaopiao, Flash Dragon, Red Parrot Leopard Dragon, Colorful Parrot, Yellowfin Parrot, Purple-headed Parrot, Black Pearl Dragon, Velvet Fox, Eight-line Fox, Cockatoo Cockatoi, East African Flame Dragon, Blue-line parrot, red velvet parrot, albacore, peacock parrot, connell's parrot, cockatoo, speckled parrot, yellow-rumped parrot, golden-backed fox, Itsu fox, ring-banded parrot, silkfin snapper, blue-star pearl dragon, Dandao dragon, four-line fox, five-line fox, Rallith, Red Sea four-line dragon, red-tailed pearl dragon, flame parrot, red-edged silkfin bream, McT's paralip, line-lipped fish, red-headed parrot, arrowhead, Australian leopard dragon, orange-backed parrot, short-nosed pearl dragon, New Guinea dragon, broken purple-breasted fish, broken purple-breasted fish, black-banded dragon, pink line fox, Red-tailed Flashing Dragon, Yellowfin Flashing Dragon, Taiwanese Dragon, Blue and White Dragon, Sharp-billed Dragon, Green Dragon, Yellow Dragon, Double Seal Dragon, Rainbow Dragon, Liujian Dragon, Tsing Yi Dragon, Purple-faced Dragon, Lightning Dragon, Saddleback Dragon, Blue Fox, Orange Dragon, Yellow Purple Dragon, Yellow-breasted Parrot Bream, Blue Spot Spain, Tricolor Dragon, Red Spanish Fish, etc.

There are many kinds of small cold-water fish, the common ones are white cloud gold silk, trout, goldfish, etc., among which the color of white cloud gold silk is bright, the ornamental value is high, and the vitality is also very tenacious. With a size of only 30 to 100 mm, trout is well suited for group rearing. Goldfish is one of the most common cold-water fish, with a variety of species, rich colors, and a gentle personality, which is suitable for polyculture.

To raise small cold-water fish, you can choose Baiyun Golden Silk, which is very small in size and bright in color, has strong ornamental value, tenacious vitality, and can live normally in a water temperature of 5 degrees.

Trout is also a small cold-water fish, and the size of the trout is only 30 100 mm, the largest is not more than 150 mm, it is widely distributed in our country, it is also very easy to raise as an ornamental fish, and usually feeds on algae and food residues.

Goldfish is also a very common cold-water fish, and there are many species, different forms, the ornamental effect of goldfish is very good, the requirements for the living environment are not high, and the color is rich, the temperament is mild, it is very suitable for polyculture with many ornamental fish.

Common species of cold-water fish include schizophrenia, schizophrenia, sturgeon, sturgeon, sturgeon, nudibranch, etc.

Introduction to cold-water fish

Cold-water fish is a species of fish, because the water temperature is higher than 20 degrees Celsius, it cannot survive, so it is called cold-water fish. Cold-water fish have a history of more than 100 million years and are called living fossils in water. China is one of the countries with the largest number of cold-water fish species, the widest distribution and the most abundant resources, but due to the influence of three major factors: river damming, environmental pollution and overfishing, sturgeon resources have been shrinking, and most of the existing species have been critically endangered.

There is an urgent need for artificial breeding to change this unfavorable situation. Artificial breeding methods mainly include factory circulating water aquaculture, pond aquaculture, cage aquaculture, etc.