Pond cultivation technology of East China Sea lefteye flounder

Abstract

The present invention relates to seawater aquiculture technology, and is especially pond cultivation technology of East China sea lefteye mandarin. The pond cultivation technology includes adopting wild East China sea lefteye mandarin as parent fishes; promoting mature and induced spawning of parent fishes through controlling lighting, water temperature and reinforced nutrients; and sea water aquiculture, during which underground sea water is utilized in the high temperature period. The present invention has high survival rate of fry and young East China sea lefteye mandarin as one new aquiculture variety.

Description

field of invention [0001] The invention relates to a pond culture technique for flounder along the coast of the East my country Sea in the seawater culture industry, and belongs to the technical field of agricultural seawater culture. Background technique [0002] The research on artificial breeding of flounder in my country began in the 1950s. Since the 1990s, due to the decline of marine resources and the increase of market demand, the aquaculture industry of flounder has developed rapidly. One of the main species of fish. Due to the continuous improvement of breeding technology, in recent years, the aquaculture industry of flounder in southern my country has gradually risen. , but the conditions for its growth and reproduction are different. At present, the breeding of northern flounder has encountered the following problems: First, the broodstock breeding population of flounder seedlings, due to the increase in the demand for seed , long-term inbreedin...

AI Technical Summary

Problems solved by technology

Due to the continuous improvement of breeding technology, in recent years, the aquaculture industry of flounder in southern my country has gradually risen. , but the conditions for its growth and reproduction are different. At present, the breeding of northern flounder has encountered the following problems: First, the broodstock breeding population of flounder seedlings, due to the increase in the demand for seed , long-term inbreeding, and the germplasm of the cultured flounder has been seriously degraded; second, when the breeding population is used as a broodstock, the northern region often uses chemicals to artificially promote ripening and induce labor. The advantage of using this method is that it can artificially make the flounder The breeding period of flounder is advanced, but the disadvantage is that drug treatment will reduce the quality of the eggs laid and affect the embryonic development; third, the current breeding method of flounder in northern China is mainly indoor factory farming, and when the climate is too low or too high , it is necessary to use temperature control equipment to artificially increase or decrease the water temperature for breeding, so the investment is large and the cost is high