Environment-friendly seawater pond culture method for portunus trituberculatus and stichopus japonicus

Abstract

The invention relates to an environment-friendly seawater pond culture method for portunus trituberculatus and stichopus japonicus and belongs to the technical field of marine culture. The method includes: in early March, preparing a pond, and laying a stichopus japonicus adhering base; in early April, adding 240 jin of 15 / jin stichopus japonicus seeds to each mu of the pond according to pond area, and normally feeding; in early May, adding 200-400 Huangxuan No. 1 stage-VI female portunus trituberculatus to each mu of the pond according to the number of the enemies of the stichopus japonicus in the pond, wherein the portunus trituberculatus is not fed during culture; in the first ten days of November, harvesting the portunus trituberculatus and the stichopus japonicus for selling. Experiments of the method prove that the portunus trituberculatus can be added in the whole culture process of the stichopus japonicus to perform mixed culture, the portunus trituberculatus adding is not limited to an estivation period, and the portunus trituberculatus does not prey on or damage the stichopus japonicus even if the portunus trituberculatus is not fed. The method has the advantages that theidea that technicians in the field takes the portunus trituberculatus as the culture enemy of the stichopus japonicus for a long time is changed, culture water is utilized sufficiently, and culture economic benefits are increased.

Description

technical field [0001] The invention belongs to the technical field of swimming crabs and sea cucumbers, and in particular relates to an environment-friendly cultivation method for swimming crabs and sea cucumbers in seawater ponds. Background technique [0002] Portunus trituberculatus is an important marine economic animal. Because of its fast growth, large body and delicious meat, it is deeply loved by the masses and has high economic value. Therefore, it is gradually developed as a breeding object. In 2006, the aquaculture area in my country reached 634,500 mu (2007 China Fishery Statistical Yearbook). In 2016, the aquaculture area in my country was only 393,300 mu (2017 China Fishery Statistical Yearbook), the aquaculture area decreased by nearly 40%, and the aquaculture output also declined sharply, and the shrinking trend continued. In addition, pond culture of Portunus trituberculatus lacks artificial compound feed, and mainly feeds low-value shellfish and fresh misc...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems of shrinking area of ​​portunus trituberculatus breeding ponds, lack of artificial compound feed, many harmful organisms in sea cucumber cultivation, high temperature and production reduction in the prior art, and it is generally believed that portunus trituberculatus will prey on or harm sea cucumbers, the technical problem to be solved by the present invention To provide a method for environment-friendly breeding of portunus trituberculatus japonicus. First, through the polyculture experiment of swimming crabs and sea cucumbers, it is confirmed that swimming crabs will not prey on or harm sea cucumbers, and eliminate people's deep-rooted misunderstandings; using the method described in the present invention, in In sea cucumber breeding ponds, young swimming crabs are put in. The swimming crabs feed on sea cucumbers such as snails and cone snails, which effectively improves the breeding environment and increases the production of sea cucumbers by 20%. The bait (low-value shellfish, fresh and live miscellaneous fish) achieves zero feeding, which protects fishery resources and increases the income of farmers by 25%; reduces the risk of breeding sea cucumbers such as high-temperature and dead production, reduces the use of fishing medicines, and realizes green and healthy farming and Improve quality and efficiency; have significant economic, social and ecological benefits

Images