Method for alternately cultivating pseudosciaena crocea and stichopus japonicus

Abstract

The invention discloses a method for alternately cultivating pseudosciaena crocea and stichopus japonicus. Fingerling of the pseudosciaena crocea is released into net cages in sea area of Zhejiang province in April, the fingerling of the pseudosciaena crocea is cultivated until November of that year, and then the mature pseudosciaena crocea is fished. Stocking cages are hanged in the net cages in which the pseudosciaena crocea is cultivated after the pseudosciaena crocea is fished, and young stichopus japonicus is released into the stocking cages. The young stichopus japonicus is cultivated until the following April, and then the mature stichopus japonicus is caught. The fingerling of the pseudosciaena crocea is released into the net cages in which the stichopus japonicus is cultivated again after the stichopus japonicus is caught, so that the pseudosciaena crocea and the stichopus japonicus are cultivated alternately in the net cages in the sea area of Zhejiang province to form a cultivation circulation. According to the invention, the pseudosciaena crocea and the stichopus japonicus are cultivated alternately in the sea area of Zhejiang province by utilizing geographic advantages of the sea area of Zhejiang province and cultivation time difference of the two living beings, so that the pseudosciaena crocea and the stichopus japonicus can be cultivated into mature living beings in a short time, quick return is achieved, and perennial supply of the pseudosciaena crocea and the stichopus japonicus can be ensured. Additionally, utilization ratios of sea area used for cultivation and the net cages are improved. Meanwhile, seasonal fresh bait produced in the sea area of Zhejiang province can be used to cultivate the stichopus japonicus, so that pollution caused by the cultivation of the pseudosciaena crocea is reduced.

Description

technical field

[0001] The invention relates to the technical field of seawater culture, in particular to a rotation cultivation method of large yellow croaker and sea cucumber. Background technique

[0002] Large yellow croaker is a warm-temperature group migratory fish. Its adaptability to water temperature ranges from 8 to 32°C, and its optimum growth water temperature is 18 to 25°C. It usually inhabits the middle and lower layers of the offshore waters with a water depth of less than 60 meters, and is mainly distributed in the middle of the Yellow Sea. It is one of the four traditional marine products in my country. It is golden in color, thick in swim bladder, tender and delicious in meat, and high in nutritional and economic value. However, due to the decline in resources and the cool Influenced by factors such as overfishing and changes in the water environment, the natural resources of wild large yellow croakers have been severely damaged, and the large yellow croakers...

Examples

Embodiment 1

[0035] Cages are arranged in the sea area of ​​Zhejiang. The area of ​​the cage culture area is equal to 10% of the aquaculture area of ​​the sea area, 150 m away from the shore. The cage specifications are: length 10 m×width 10 m×height 10 m, mesh size 50 mm, and the cages are formed into net rafts with a culture water body of 40,000 m3. There is a 55-m channel between the net rafts. In early April, large yellow croaker fingerlings were placed in the net cages in the sea area of ​​​​Zhejiang. Immerse in 10ppm potassium permanganate solution for 30 minutes, and the stocking density of fingerlings is 70 fish / m 3 , it is forbidden to feed the bait on the 1st to 3rd day after the fish species are put in. On the 4th to 10th day, feed the bait once a day, and the bait feeding amount is 1% of the fish body weight. The morning feeding time is 8:00~9:00, the bait feeding amount is 2% of the fish body weight, the afternoon feeding time is 16:00~17:00, the bait feeding amount is 3.5% of...

Embodiment 2

[0039] The net cages are arranged in the sea area of ​​Zhejiang. The area of ​​the net cage culture area is equal to 9% of the aquaculture area, 270m away from the shore. 45 mm, and the net cages are formed into net rafts with a culture water body of 30,000 m3. There are 50 m passages between the net rafts. Immerse in 20ppm potassium permanganate solution for 10 minutes, and the stocking density of fingerlings is 50 fish / m 3 , it is forbidden to feed the bait on the 1st to 3rd day after the fish species are put in. On the 4th to 10th day, the bait is fed once a day, and the bait feeding amount is 1.5% of the fish body weight. The morning feeding time is 8:00~9:00, the bait feeding amount is 2.5% of the fish body weight, the afternoon feeding time is 16:00~17:00, the bait feeding amount is 3% of the fish body weight, continuous After feeding for 5 days, stop feeding for 2 days, and then cycle feeding according to this cycle. During the large yellow croaker breeding period, do ...

Embodiment 3

[0043] Cages are arranged in the sea area of ​​Zhejiang. The area of ​​the cage culture area is equal to 8% of the aquaculture area, 300m away from the shore. The cage specifications are: length 10 m×width 10 m×height 10 m, mesh size 30 mm, and the net cages are formed into net rafts with a culture water body of 35000m3. There are 60m channels between the net rafts. Soak in 20ppm formalin for 20 minutes, and the stocking density of fingerlings is 40 fish / m 3 , it is forbidden to feed the bait on the 1st to 3rd day after the fish species are put in. On the 4th to 10th day, feed the bait once a day, and the bait feeding amount is 2% of the fish body weight. The morning feeding time is 8:00~9:00, the bait feeding amount is 3% of the fish body weight, the afternoon feeding time is 16:00~17:00, the bait feeding amount is 4% of the fish body weight, continuous Feed for 7 days and then stop feeding for 2 days, and feed them in a cycle. During the large yellow croaker breeding period...

technical field

[0001] The invention relates to the technical field of seawater culture, in particular to a rotation cultivation method of large yellow croaker and sea cucumber. Background technique

[0002] Large yellow croaker is a warm-temperature group migratory fish. Its adaptability to water temperature ranges from 8 to 32°C, and its optimum growth water temperature is 18 to 25°C. It usually inhabits the middle and lower layers of the offshore waters with a water depth of less than 60 meters, and is mainly distributed in the middle of the Yellow Sea. It is one of the four traditional marine products in my country. It is golden in color, thick in swim bladder, tender and delicious in meat, and high in nutritional and economic value. However, due to the decline in resources and the cool Influenced by factors such as overfishing and changes in the water environment, the natural resources of wild large yellow croakers have been severely damaged, and the large yellow croakers...

Examples

Embodiment 1

[0035] Cages are arranged in the sea area of ​​Zhejiang. The area of ​​the cage culture area is equal to 10% of the aquaculture area of ​​the sea area, 150 m away from the shore. The cage specifications are: length 10 m×width 10 m×height 10 m, mesh size 50 mm, and the cages are formed into net rafts with a culture water body of 40,000 m3. There is a 55-m channel between the net rafts. In early April, large yellow croaker fingerlings were placed in the net cages in the sea area of ​​​​Zhejiang. Immerse in 10ppm potassium permanganate solution for 30 minutes, and the stocking density of fingerlings is 70 fish / m 3 , it is forbidden to feed the bait on the 1st to 3rd day after the fish species are put in. On the 4th to 10th day, feed the bait once a day, and the bait feeding amount is 1% of the fish body weight. The morning feeding time is 8:00~9:00, the bait feeding amount is 2% of the fish body weight, the afternoon feeding time is 16:00~17:00, the bait feeding amount is 3.5% of...

Embodiment 2

[0039] The net cages are arranged in the sea area of ​​Zhejiang. The area of ​​the net cage culture area is equal to 9% of the aquaculture area, 270m away from the shore. 45 mm, and the net cages are formed into net rafts with a culture water body of 30,000 m3. There are 50 m passages between the net rafts. Immerse in 20ppm potassium permanganate solution for 10 minutes, and the stocking density of fingerlings is 50 fish / m 3 , it is forbidden to feed the bait on the 1st to 3rd day after the fish species are put in. On the 4th to 10th day, the bait is fed once a day, and the bait feeding amount is 1.5% of the fish body weight. The morning feeding time is 8:00~9:00, the bait feeding amount is 2.5% of the fish body weight, the afternoon feeding time is 16:00~17:00, the bait feeding amount is 3% of the fish body weight, continuous After feeding for 5 days, stop feeding for 2 days, and then cycle feeding according to this cycle. During the large yellow croaker breeding period, do ...

Embodiment 3

[0043] Cages are arranged in the sea area of ​​Zhejiang. The area of ​​the cage culture area is equal to 8% of the aquaculture area, 300m away from the shore. The cage specifications are: length 10 m×width 10 m×height 10 m, mesh size 30 mm, and the net cages are formed into net rafts with a culture water body of 35000m3. There are 60m channels between the net rafts. Soak in 20ppm formalin for 20 minutes, and the stocking density of fingerlings is 40 fish / m 3 , it is forbidden to feed the bait on the 1st to 3rd day after the fish species are put in. On the 4th to 10th day, feed the bait once a day, and the bait feeding amount is 2% of the fish body weight. The morning feeding time is 8:00~9:00, the bait feeding amount is 3% of the fish body weight, the afternoon feeding time is 16:00~17:00, the bait feeding amount is 4% of the fish body weight, continuous Feed for 7 days and then stop feeding for 2 days, and feed them in a cycle. During the large yellow croaker breeding period...

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