A device and method for raising oysters in open sea area with double-layer rafts and double seasons

An open, raft technology, applied in fish farming, application, climate change adaptation, etc., can solve the problems of oyster seedlings detached from the attachment base, weak resistance to strong wind and waves, etc., to solve the problem of overcrowded breeding space and the ability to resist wind and waves Strong, the effect of improving production output and economic benefits

Active Publication Date: 2017-08-29
莆田市渔业行业协会
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a device and method for double-layered raft racks in open sea areas to raise oysters in double seasons, so as to overcome the existing raft rack design in the prior art with weak resistance to strong winds and waves, which may easily cause oyster seedlings to detach from the attachment base. The problem

Method used

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  • A device and method for raising oysters in open sea area with double-layer rafts and double seasons
  • A device and method for raising oysters in open sea area with double-layer rafts and double seasons

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Embodiment 1

[0023] refer to figure 1 A double-layer raft rack double-season hoisting device for raising oysters in an open sea area, the device includes an upper raft rack 10, a lower raft rack 11 and a plurality of first ropes 12. The upper raft 10 includes a plurality of first floating balls 101 and a plurality of first floating ropes 102 . The first buoyant ball 101 may be a sphere made of materials such as foam and has relatively high buoyancy. The plurality of first floating ropes 102 are connected to form a frame structure. The plurality of first floating balls 101 are connected to the first floating rope 102 . The lower raft frame 11 includes a plurality of second floating ropes 13, and the plurality of second floating ropes 13 are connected to form a frame structure. The upper raft frame 10 and the lower layer raft frame 11 are connected by a plurality of first ropes 12 .

[0024] refer to figure 1 , the length of the first rope 12 is 2-6 meters. The destructive power of wav...

Embodiment 2

[0038] refer to figure 1 A double-layer raft rack double-season hoisting device for raising oysters in an open sea area, the device includes an upper raft rack 10, a lower raft rack 11 and a plurality of first ropes 12. The upper raft 10 includes a plurality of first floating balls 101 and a plurality of first floating ropes 102 . The first buoyant ball 101 may be a sphere made of materials such as foam and has relatively high buoyancy. The plurality of first floating ropes 102 are connected to form a frame structure. The plurality of first floating balls 101 are connected to the first floating rope 102 . The lower raft frame 11 includes a plurality of second floating ropes 13, and the plurality of second floating ropes 13 are connected to form a frame structure. The upper raft frame 10 and the lower layer raft frame 11 are connected by a plurality of first ropes 12 .

[0039] refer to figure 1 , the length of the first rope 12 is 2-6 meters. The destructive power of wav...

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Abstract

The invention relates to a device and a method for double-harvest hanging cultivation of oysters by double-layer raft frames in an open sea area. The device comprises an upper raft frame, a lower raft frame and a plurality of first ropes. The upper raft frame comprises a plurality of first float balls and a plurality of first float lines, the first float lines are connected to form a frame structure, and the first float balls are connected to the first float lines. The lower raft frame comprises a plurality of second float lines connected to form a frame structure and is connected with the upper raft frame through the first ropes. The device provided with the upper raft frame and the lower raft frame is adopted in typhoon seasons from June to November, and the lower raft frame sinking into the sea has high capability of resisting stormy waves, so that probability that baby oysters are separated from adherance is decreased and loss of cultivators is reduced.

Description

technical field [0001] The invention relates to a device and a method, in particular to a device and a method for raising oysters in two seasons by double-layer rafts in an open sea area. Background technique [0002] In most coastal waters of our country, the shallow sea surface resources with strong winds and waves and often hit by typhoons are very vast, and a small number of relatively calm inner bays have been saturated with aquaculture. Opening up aquaculture production in shallow seas with high winds and waves is the fundamental future problem that must be solved for fishery development . Oyster culture usually adopts single-layer rafts for hanging culture. The existing single-layer raft frame is convenient for hoisting and maintenance. However, the aquaculture water depth is generally at a relatively shallow position close to the coast. When encountering extremely bad weather, the raft frame on the water surface will be shaken violently by the wind and waves, and t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K61/54
CPCA01K61/54A01K61/60Y02A40/81
Inventor 严志洪郑金练吴文恩
Owner 莆田市渔业行业协会
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