What is green yellow croaker and why is the meat of herring yellow

The green croaker is the naked sturgeon. The scientific name of the blue croaker is the naked sturgeon, which is native to the Black Sea.

Caspian and Aral Sea basins, former Soviet Union.

In 1933-1934 it was introduced into Lake Balkhash, and now it has entered the Ili River system in our country.

Distribution of the origin of the nudibranched sturgeon:The naked belly sturgeon is also known as the sturgeon fish.

It is endemic to the Ili River. The Ili River is the only river in China where the naked sturgeon grows, and the naked sturgeon is naturally distributed only in the Black Sea, Caspian Sea and Aral Sea systems in Europe, and the number is very small.

The Ili River is the largest international river in Xinjiang, and its upper reaches have three major tributaries: the Turks River, the Gongnaisi River and the Kashgar River.

As a link between China and Kazakhstan, the Ili River makes Hanoi due to its special geographical location.

The composition of fish naturally communicates and spreads with each other, showing obvious characteristics of mixed species between Asia and Europe, which is completely different from the species of the Yangtze River system.

Yellow croaker is a naked-bellied sturgeon. Yellow croaker, known as the naked sturgeon, is native to the Black, Caspian and Aral Sea basins. From 1933 to 1934, it was introduced into Lake Balkhash by the former Soviet Union, and has now entered the Ili River system in China.

Origin distribution of the nudibranched sturgeon: The nudibranched sturgeon, also known as the sturgeon, is a species endemic to the Ili River. The Ili River is the only river in China where the naked sturgeon grows.

The naked belly sturgeon is naturally distributed only in the Black Sea, Caspian Sea and Aral Sea systems in Europe, and the number is small. The Ili River is the largest international river in Xinjiang, with three tributaries in its upper reaches: the Turks River, the Gongnaisi River and the Kashgar River. Most of these tributaries are pebble beds and are spawning grounds for some fish.

As a link between China and Kazakhstan, the Ili River naturally communicates and spreads fish composition with each other due to its special geographical location, showing obvious characteristics of mixed Asian and European species, which is completely different from the Yangtze River water system.

Summary. Hello, there are many reasons for the yellowing of the flesh of live fish, if it is a fish caught by yourself from the river, it may be due to the pollution of the river, which causes the flesh of the live fish to be yellow, and this situation is inedible; It is also divided into fish types, and the flesh of some fish is yellow, such as the Yellow River carp, which is edible in this case; It may also be related to the physical condition of the fish itself, and poor health may also cause the fish to turn yellow; In addition, it is possible that the fish gall bladder is broken, and the bile stains the flesh of the fish.

Hello, there are many reasons for the yellowing of live fish, if it is a fish caught by yourself from the river, it may be due to the pollution of the river, resulting in the yellow flesh of the live fish, which is inedible; It is also divided into fish types, and the flesh of some fish is yellow, such as the Yellow River carp, which is edible in this case; It may also be related to the physical condition of the fish itself, and the body may also cause the fish to turn yellow; In addition, it is possible that the fish gall bladder is broken, and the bile stains the fish meat.

Freshly caught herring meat.

Why is it yellow?

It may be due to pollution in the river, which causes the flesh of the live fish to be yellow, which is inedible.

Herring is also called mackerel, black green, black mullet.

Herring (scientific name: Mylopharyngodon piceus), also known as mackerel, black blue, black mullet, snail blue, green grass carp, black carp, green stick, copper blue, mild carnivorous fish of the genus Herring in the family Cyprinidae, is also the only species of the genus Herring.

The body shape resembles that of a grass carp, the head is slightly pointed, except for the grayish-white abdomen, the other parts are blue-black, especially the back and fins are deeper, from which the name of the herring fish is derived. Its body is long and cylindrical, the snout is sharp, and the hypopharyngeal teeth are 4 in 1 row, which are molar-shaped.

Herring mainly inhabits the lower layers of large rivers and lakes, and feeds mainly on molluscs, and is a large carp economic fish. Herring grows rapidly, and in three years the fish can weigh 3 4 thousand wide Hesenke, and at its peak it can reach 70 kg, with a body length of 145 456 mm.

It matures in 4 5 years, breeds in 5 July, and lays drifting eggs in rivers with a membrane diameter of 5 6 mm. During the reproductive season, males have white granular beads on their heads and dense bands on their pectoral fins.

Due to overfishing and ecological damage, the wild population of herring has declined sharply, and on December 12, 2007, herring was included in the list of economic aquatic animal and plant resources under national key protection in China (the first batch). On May 20, 2015, herring was included in the Red List of Biodiversity of China - Vertebrate Volume - Least Concern (LC).

Herring is mainly distributed in the plains south of the Yangtze River in China, and less in the north of the Yangtze River. Due to its fast growth and fecundity, herring has now been migrated to many countries in North America, Europe, sub-Saharan Africa and the Middle East. It is an important fishery resource in the middle and lower reaches of the Yangtze River and lakes along the Yangtze River and the main breeding object in various lakes and ponds, so it is known as one of the "four major fish" of China's freshwater aquaculture.

Yellow croaker is a marine fish, belonging to the totoaba family, mainly growing in the East China Sea, because its head contains two stones, also known as totoaba fish, every spring in March is the spawning period of yellow croaker, the foraging period is from June to December every year, and yellow croaker can be cultivated in cages.

1. Marine fish

Yellow croaker belongs to the sea fish, is a fish living in the ocean, its body is small, rectangular, the back color is gray-yellow, the belly color is golden yellow, the fin is yellow, mostly grows in the middle and lower layers of the water, and the head of the yellow croaker has two hard stones, so it is also called totoaba fish.

2. Growth habits

Yellow croaker has a migratory habit, it will enter the deep sea for wintering in the winter of each year, and swim back to the coastal area in spring, and the spawning period of yellow croaker is from March to June every spring, after June, the yellow croaker will begin to feed, and enter the deep sea after December.

3. Breeding methods

Breeding yellow croaker can take the method of cages, set up breeding areas in coastal areas, and put the cages into it, and then put the fish fry that grow robust, disease-free and injury-free into the cages, and in the process of breeding, the waste on the cages should be cleaned regularly, so as not to affect the growth of yellow croaker.

4. Disease prevention and control

Yellow croaker in the process of growth, prone to viral, bacterial, parasitic diseases, so when breeding, to regularly check the cage and fish fry, if there is a disease, should be taken out of the cage in time, and the breeding area is disinfected, so as not to pollute the water quality, affect the health of other yellow croaker.

1. Yellow croaker, Larimichthys (D.). s.Jordan et Starks, 1905), also known as yellow croaker, is a general term for a genus of yellow croaker in the family Totoabaceae.

Born in the East China Sea, there are two hard stones in the head of the fish, called otoliths, so it is also called totoaba fish. The white swim bladder in the belly of the fish can be used as fish gelatin, which has the effect of stopping bleeding and can prevent hemorrhagic purpura.

2. Yellow croaker is divided into large yellow croaker (larimichthys crocea) and small yellow croaker (larimichthys polyactis), which are one of the four major marine species in China. Big yellow croaker is also called Daxian, Golden Dragon, cucumber fish, red melon, **Dragon, osmanthus yellow croaker, king fish, big yellow fish; Small yellow croaker is also called plum, plum fish, small kingfish, small first, small spring fish, small cucumber fish, thick scales, and flower fish. All belong to the class of bony fishes, perciformes, totoaba family, and yellow croaker.

3. Yellow croaker used to be one of China's important economic fish, a unique endemic species in China, widely distributed in the south of the Yellow Sea in the north, through the East China Sea and the Taiwan Strait, and south to the east of the Leizhou Peninsula in the South China Sea. It is a warm-temperate cluster migratory fish that often inhabits the lower and middle layers of the offshore sea at a depth of less than 60 meters. There are two seasons of large yellow croaker in spring and autumn, and during the reproductive period, the fish migrate from the wintering area of the open sea to the offshore sea in batches.

As a precious economic fish, large yellow croaker has been favored by consumers for a long time. However, due to overfishing, the resource has been severely damaged.