Large bottomless cultivation net box and construction method thereof

Abstract

The invention relates to a cultivation net box, in particular to a large bottomless cultivation net box, and belongs to the technical field of cultivation net boxes. The large bottomless cultivation net box is characterized in that the whole large bottomless cultivation net box is of a cuboid structure and includes a buoy combination floating on the surface of water, the buoy combination is rectangular, each long side of the buoy combination is composed of a row of buoys, each short side of the buoy combination is composed of at least two rows of buoys through connection, the buoys on the long and short sides are fixedly connected with an anchor which sinks at the bottom of the water through ropes, and the ropes stretch the long and short sides towards the two sides and fix the long and short sides; the lower portion of the buoy combination is fixedly connected with a purse seine, and the lower edge of the purse seine is fixedly connected with a rectangular iron chain which sinks at the bottom of the water. According to the large bottomless cultivation net box, the production cost is reduced, the weight of the net box is reduced, and the wind and wave resistance properties are improved; according to conditions of a sea area, the shape of the net box is flexibly combined, the layout is flexible, and the adaptability is high.

Description

technical field [0001] The invention relates to a breeding cage, in particular to a large-scale bottomless breeding cage and a construction method thereof, belonging to the technical field of breeding cages. Background technique [0002] Aquaculture is one of the fastest growing animal food production industries in the world. In 2006, it was already equal to the production of the world fishing industry. However, due to the deterioration of water quality caused by factory farming, the meat of farmed fish is soft, the taste is poor, the fat content is too high, and the quality is obviously reduced, resulting in a sharp drop in market price and a sharp drop in sales, which seriously affects the economic viability of the aquaculture industry. Continuous development. [0003] As a highly intensive farming model, cage culture has the characteristics of high yield and high benefit. In the 1980s, cage culture in lakes in my country gradually developed. By 2004, the area of ​​cage...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is that the existing culture net cages have small area and shallow depth, which limits the activity space of fish, and because the heavy objects suspended at the bottom of the culture net cages are washed away by the water flow for a long time, The bottom of the net is easily deformed or even damaged, resulting in damage to the aquaculture cage and affecting the economic benefits of aquaculture

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