Shallow sea cage apostichopus japonicus recirculating aquacultural facility and aquacultural method

Abstract

The invention provides a shallow sea cage apostichopus japonicus recirculating aquacultural facility and an aquacultural method. The shallow sea cage apostichopus japonicus recirculating aquacultural facility comprises a plurality of cages. The shallow sea cage apostichopus japonicus recirculating aquacultural facility is characterized in that the plurality of cages comprise small, medium and large aquacultural cages which are respectively used for aquaculture of small, medium and large juvenile apostichopus japonicus, the small, medium and large aquacultural cages are connected in proportional allocation that quantity of the small aquacultural cages is lower than quantity of the medium aquacultural cages and the quantity of the medium aquacultural cages is lower than quantity of the large aquacultural cages to form aquacultural units, and the aquacultural units are connected and then are fixed under the sea through piling. In March, April and May every year, the small, medium and large juvenile apostichopus japonicus are put into the cages to be cultivated according to specific density, and cultivation in each stage can provide enough juvenile apostichopus japonicus for the next stage; and then the small juvenile apostichopus japonicus are continuously supplemented and put into the cages, and the process is repeated, so that ecological efficient continuous product is realized. Aqucultural facility utilization rate is greatly improved, production cost is greatly reduced, growth rate of the juvenile apostichopus japonicus is improved, survival rate of the juvenile apostichopus japonicus is greatly improved, operation management is convenient, and comprehensive benefits are obviously improved.

Description

technical field [0001] The invention relates to seawater culture technology, in particular to a shallow sea net cage imitation japonicus circulation culture facility and culture method. Background technique [0002] In recent years, with the continuous acceleration of urbanization and the comprehensive development and utilization of coastal zones, the area of ​​land-based mariculture in my country has been shrinking day by day, and the development of shallow sea aquaculture space has become a new trend in the development of the mariculture industry in the future. At present, the cultivation methods of japonicus in my country are mostly based on land-based ponds and industrialized cultivation in the north, while in Fujian and Jiangsu in the south of my country, it is mainly cultivated in floating rafts and hanging cages near the coast, and there are facilities and production facilities to varying degrees. Disadvantages such as high cost input, non-standard breeding, complicate...

AI Technical Summary

Problems solved by technology

At present, most of the net cages for shallow sea cage culture are made of metal, plastic, bamboo and wood as the frame, and the synthetic fiber mesh is assembled as the net body. Extensive cultivation of seedlings from the head, harvesting and supplementing in turns, this method has high cost, inconvenient operation and management, slow growth of ginseng seedlings, and poor breeding effect, so it has not been widely promoted and applied

Images