CATDOLL : CATDOLL: What kind of fish is called soft gold?

The fish known as soft gold is eel fry.

Eel fry is the young eel. Eel refers to the general term for species under the order Anguilla, also known as white eel, river eel, and eel. It usually lays eggs and reproduces in the deep sea and grows in freshwater environment. It is rich in nutrients, tastes delicious, has few bones and is meaty. It has the effect of cooling down, relieving heat, nourishing and strengthening the body. It has very high breeding value.

Eels are mainly distributed in the Yangtze River, Minjiang River, Pearl River Basin, Hainan Island and rivers and lakes in China. Eels around the world mainly grow in tropical and temperate waters. Except for the European eel (Anguilla anguilla) and the American eel (Anguilla rostrata) distributed in the Atlantic Ocean, the rest are distributed in the Indian Ocean and the Pacific Ocean.

Additional information:

Eel fry breeding technology

1. Water quality environment: Choose a sea area near an estuary with open water, good water quality, low wind speed and a water depth of more than 4 meters at low tide to set up cages. The water temperature should be between 8 and 30°C, the current speed should be less than 1 meter/second, and the water area with a current speed of 0.5 meters/second is the best.

2. Cage specifications: 3×3×3 meters or 6×3×3 meters seamless mesh cages are used, and the mesh specifications for raising black eels and juvenile eels are 0.5 cm, and adult eels are 0.8 cm. The cages are built with 1×0.5×1 meter multi-layer grids as resting platforms, and the cages are open with 15 cm escape prevention eaves.

3. Release of seedlings: Young eels are the best for stocking, and the stocking density is 150 per square meter. If young eels are not available and black eels are released, the density is 500 per square meter. Before releasing the eel seedlings, they should be disinfected with a medicated bath to prevent disease.

Reference source: Baidu Encyclopedia - Eel Fry

Eel fry.

Eel fry is the young eel. Eel refers to the general term for species under the order Anguilla, also known as white eel, river eel, and eel. It usually lays eggs and reproduces in the deep sea and grows in freshwater environment. It is rich in nutrients, tastes delicious, has few bones and is meaty. It has the effect of cooling down, relieving heat, nourishing and strengthening the body. It has very high breeding value.

Additional information:

Eel fry breeding conditions:

1. Water source: In plain areas, water from rivers and lakes is the main source, while in mountainous areas, water from streams and springs is the main source. It is best to have groundwater in order to extract deep well water for backup. Suitable water quality is pH 7-8, transparency above 20 cm, and no industrial wastewater hazards.

2. Power supply: The breeding farm needs sufficient power supply. Generally, each acre of eel pond needs to be equipped with a 1-kilowatt aerator. An eel farm that produces 100 tons of edible eels per year requires at least one 150-kilovolt-ampere transformer, and power supply must be guaranteed all year round.

3. Others: Loam is the best soil for building a farm. The terrain must be flat and the climate must be warm. If warm drainage from thermal power plants or hot spring water can be used, the benefits will be more obvious. In addition, convenient water and land transportation is required to transport feed and commercial eels.

Reference: Baidu Encyclopedia - Eel Fry

The fish known as soft gold is eel fry.

There has been no breakthrough in the artificial breeding technology of eels, so the source of seedlings for farmed eels can only rely on wild catching. This is mainly because eels have a very special life history that is difficult to simulate in an artificial environment. Production mainly relies on obtaining fry through natural fishing.

At the same time, the sex of eels is determined by the environment. When the population is small, the proportion of female fish will increase, and when the population is large, it will decrease. In the early days when the resources were abundant, the price was not high. In the later period, the catch increased dramatically and the resources decreased dramatically, so the price was high.

Additional information:

Farming technology

1. Water quality environment: Choose a sea area near an estuary with open water, good water quality, low wind speed and a water depth of more than 4 meters at low tide to set up cages. The water temperature should be between 8 and 30°C, the current speed should be less than 1 meter/second, and the water area with a current speed of 0.5 meters/second is the best.

2. Cage specifications: 3×3×3 meters or 6×3×3 meters seamless mesh cages are used, and the mesh specifications for raising black eels and juvenile eels are 0.5 cm, and adult eels are 0.8 cm. The cages are built with 1×0.5×1 meter multi-layer grids as resting platforms, and the cages are open with 15 cm escape prevention eaves.

3. Release of seedlings: Young eels are the best for stocking, and the stocking density is 150 per square meter. If young eels are not available and black eels are released, the density is 500 per square meter. Before releasing the eel seedlings, they should be disinfected with a medicated bath to prevent disease.

It's eel.

Eel refers to the general term for species under the order Anguilla, also known as white eel, river eel, and eel. It usually lays eggs and reproduces in the deep sea and grows in freshwater environment. It is rich in nutrients, tastes delicious, has few bones and is meaty. It has the effect of cooling down, relieving heat, nourishing and strengthening the body. It has very high breeding value.

The sex of eels is determined by the environment. When the population is small, the proportion of female fish increases, and when the population is large, it decreases. In the early days when the resources were abundant, the price was not high. In the later period, the catch increased dramatically and the resources decreased dramatically, so the price was high.

Additional information:

Eels grow in rivers on land, and migrate to the ocean to spawn when they mature. They only lay eggs once in their lifetime and die after spawning. This lifestyle is the opposite of salmon's upstream migration, and is called downstream migration. Its life history is divided into six different developmental stages. In order to adapt to different environments, the body shape and color of the eels change greatly at different stages.

Under natural conditions, the largest eel that can be caught is 45 cm long and weighs 1,600 grams. Eels spawn in the deep sea and grow in freshwater environments. They are ferocious, greedy, active, and nocturnal. They are phototropic and like running water and warmth.

Eel fry.

There has been no breakthrough in the artificial breeding technology of eels, so the source of seedlings for farmed eels can only rely on wild catching. This is mainly because eels have a very special life history that is difficult to simulate in an artificial environment. Production mainly relies on obtaining fry through natural fishing.

At the same time, the sex of eels is determined by the environment. When the population is small, the proportion of female fish will increase, and when the population is large, the proportion of female fish will decrease. In the early days when the resources were abundant, the price was not high. In the later period, the catch increased dramatically and the resources decreased dramatically, so the price was high.

Additional information

Eel fry culture conditions

1. Water source: In plain areas, water from rivers and lakes is the main source, while in mountainous areas, water from streams and springs is the main source. It is best to have groundwater in order to extract deep well water for backup. Suitable water quality is pH 7-8, transparency above 20 cm, and no industrial wastewater hazards.

2. Power supply: The breeding farm needs sufficient power supply. Generally, each acre of eel pond needs to be equipped with a 1-kilowatt oxygenator. An eel farm that produces 100 tons of edible eels per year requires at least one 150-kilovolt-ampere transformer, and it must be guaranteed that there will be no power outages all year round.

3. Others: Loam is the best soil for building a farm. The terrain must be flat and the climate must be warm. If warm drainage from thermal power plants or hot spring water can be used, the benefits will be more obvious. In addition, convenient water and land transportation is required to transport feed and commercial eels.