Pelagic cage culture complex

Abstract

The invention discloses a pelagic net cage culture complex. The complex is characterized by comprising pelagic culture net cages with a modular space truss structure, a floating service ocean platformand a working ship; the pelagic culture net cages are arranged around the floating service ocean platform, and the working ship performs transportation between the shore and the floating service ocean platform back and forth; a lower buoyancy structure of the floating service ocean platform is formed by modularly stacking buoyancy modules with array buoyancy adjustable points, and an upper platform structure provides storage spaces for various functional modules, such as feeding fodder, materials, cold chains and living facilities; and the pelagic culture net cages are of a modular space truss structure, and solve the problems of stormy wave resistance and benefit generation. The working ship moves back and forth between the shore base and the floating service ocean platform at intervalsto transport feed, energy, equipment and supply for the platform and human resources or travelers.

Description

technical field [0001] The invention belongs to the field of marine engineering devices, in particular to the field of deep-sea aquaculture equipment, and in particular relates to a high-sea cage culture complex. Background technique [0002] Compared with international aquaculture technology, my country's near-shore marine aquaculture technology is relatively mature, mainly based on family-style and small-scale production methods, and has not formed a scale effect. It is difficult to support the large-scale production method of deep-sea aquaculture, and it is really involved in deep-sea aquaculture. Almost no experience. In addition to lagging behind other advanced countries in terms of fishing boats and breeding equipment, aquaculture in deep and open seas also faces more complex natural sea conditions. [0003] The natural geographical environment has become a major objective factor affecting deep-sea aquaculture. my country's coastal sea conditions are more complex than...

AI Technical Summary

Problems solved by technology

[0016] The deformation of deep-water cages due to ocean currents cannot be ignored. In the case of ordinary gravity cages with a water flow of 1 m / s, the volume loss rate of the cages can be as high as 80%, which greatly compresses the aquaculture water body and is not conducive to fish growth.

[0017] Net cleaning and replacement mainly rely on manual operation, the underwater operation is difficult, and the anti-fouling technical requirements are high

[0018] The stress response of fish in aquaculture is also prominent. The environment of deep-sea aquaculture is more complex, with many and uncertain factors such as wind, air pressure, water flow, temperature, light, and salinity. It is a natural action to overcome the stress response, and lacks the technical means and ability to adapt and adjust to the environment. Therefore, the stress response of fish is more serious and uncontrollable, resulting in slow growth and development of fish, decreased reproductive ability, and low immune function. increased morbidity and even sudden death

[0019] Another example is the net cage of CN109874716A, although there are suspension cables and snorkeling functions, they all carry out vertical snorkeling with the net cage as a whole. Usually it is necessary to catch fish by collecting the net, but it has to rely on external ship machinery, and the cage and the net body need to be separated first, which is prone to entanglement and incomplete separation, and the machine will tear the net and cause a large loss of fish. , the mechanical net needs to be cautious, which is very time-consuming and inefficient (this is also the case when the net is cleaned and replaced)

This problem becomes more prominent when the unpredictable wind and waves and other harsh external environments come. It is a big problem for ships to sail. The strength is not enough, and the ability to avoid risks is also insufficient. Therefore, accidents often occur in the suspension net cages after the storm, causing huge economic losses.

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