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Trawl net mouth self-powered light trapping fish device

A self-powered, trawling technology, applied in the field of trawling, can solve problems such as difficulty in trapping fish, and achieve the effect of improving operational productivity

Active Publication Date: 2022-07-22
EAST CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Light lure fishing requires energy to generate light. At present, the main method is to use energy on board and install fish lamps to irradiate the sea surface to lure fish. Trawling operations are difficult due to the long drag nets, ranging in length from tens of meters to thousands of meters. A method of attracting fish using light generated by on-board energy sources

Method used

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  • Trawl net mouth self-powered light trapping fish device
  • Trawl net mouth self-powered light trapping fish device
  • Trawl net mouth self-powered light trapping fish device

Examples

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Embodiment Construction

[0022] The present invention will be further described below in conjunction with specific embodiments. It should be understood that these examples are only used to illustrate the present invention and not to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of the present application.

[0023] like figure 1 The shown device for trapping fish with self-powered lamps at the trawl net port includes a net plate 3 , a trawl net 8 , a hydroelectric generator 2 , a current collector 19 , an output cable 4 and an underwater fish collecting lamp 7 .

[0024] like figure 1 As shown, on the whole, both sides of the net port of the trawl net 8 are connected to the net plate 3 through the rear drag line 6 respectively. T...

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Abstract

The invention relates to a trawl net port self-powered lamp for trapping fish, which comprises a net plate and a trawl net. The fish-collecting lamp, the hydroelectric generator and the current collector are installed on the mesh plate. The upstream side of the hydroelectric generator faces the front end of the mesh plate. The fish-collecting lights are arranged on the rear trolley at intervals, and the collector is connected with the underwater fish-collecting lights through an output cable to supply power. The invention can realize the light trapping of fish during the fishing operation, which is beneficial to improve the operation yield of trawling.

Description

technical field [0001] The invention belongs to the technical field of trawling, and in particular relates to a device for trapping fish with a self-powered lamp at the mouth of a trawling net. Background technique [0002] Trawling is a commonly used fishing gear in fishing. According to the different habits of the fish, the operating water layer can be adjusted to catch various fish from the bottom of the ocean to the surface. The towing speed of the fishing boat can also be adjusted appropriately according to the swimming speed of the fish. , but due to drag resistance and the limitation of fishing boat power, the speed of the trawl is generally 1-2m / s. In addition, it is also difficult to adjust the operating water layer of the trawl during the towing process. Usually, the trawl is designed and fished for fish in a specific water layer. [0003] Studies on fish behavior have shown that many fish have phototaxis, and the light-baiting method is also a commonly used fishi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K79/02A01K73/02H02J7/32F03B13/22
CPCA01K79/02A01K73/02H02J7/32F03B13/22Y02P60/60
Inventor 王磊王鲁民张勋冯春雷朱文斌宋春德冯卫东吕昊元
Owner EAST CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI