Multifunctional net cage

Abstract

The invention provides a multifunctional net cage which comprises a net cage body, wherein a bottom plate is arranged at the bottom of the net cage body, a protection plate is arranged at the rear end of the net cage body, a protection shield is arranged at the front end of the net cage body, and the protection plate and the protection shield are fixed on the bottom plate; protection nets are arranged at two sides of the net cage body, two lateral sides of each protection net are fixedly on the protection plate and the protection shield, the bottom side of each protection net is fixedly on the bottom plate, and buoys are arranged at the outer side of the two lateral sides of each protection net. In the multifunctional net cage, the bottom plate, the protection plate, the protection shield and the protection nets are combined into a boat-shaped whole, therefore, the net cage can not only be used for cultivating, but also used for transporting, with the achievement of double benefits; meanwhile, the protections, such as wind resistance, thievery prevention, and the like can be effectively carried out on the net cage; and the multifunctional net cage is not only suitable for freshwater aquaculture, but also can carry out mariculture.

Description

technical field [0001] The invention relates to a net cage, in particular to a multifunctional net cage. Background technique [0002] Cage fish farming is a production method in which cages made of mesh are placed in certain waters for fish farming. It is mostly set in lakes, rivers, reservoirs and other waters with certain water flow, fresh water quality and high dissolved oxygen. Because high-density intensive cultivation can be implemented, the yield is high and the economic benefits are considerable, so it is widely used. However, the aquaculture model based on the pursuit of economic benefits has caused excessive use of rivers, lakes and reservoirs, resulting in eutrophication of the water body and a decline in the quality of the water environment. For example, the implementation of chemical fertilizer fish farming in pursuit of high yield directly increases the nitrogen and phosphorus content of the water body. Improving the survival rate of fish in cages and overfi...

AI Technical Summary

Problems solved by technology

However, the aquaculture model based on the pursuit of economic benefits has caused excessive use of rivers, lakes and reservoirs, resulting in eutrophication of the water body and a decline in the quality of the water environment. For example, the implementation of chemical fertilizer fish farming in pursuit of high yield directly increases the nitrogen and phosphorus content of the water body. Improving the survival rate of fish culture in cages and overfishing piscivorous fish lead to an imbalance in the ecosystem, etc.

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