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...

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