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Sorting fishing gear for fishery resource investigation and using method of sorting fishing gear

A fishery resource and sorting technology, applied in the field of fishing gear for fishery resource investigation, can solve the problems of increased investigation difficulty, mutual predation, and low operating efficiency, so as to reduce the possibility of mutual predation, reduce the degree of putrefaction and deterioration, and shorten the operation the effect of time

Active Publication Date: 2021-12-21
FRESHWATER FISHERIES RES INSITUTE OF JIANGSUPROVINCE +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003]In order to obtain the resource data of fishery organisms, the survey of fishery resources needs to use fishing gear for fishing, and then measure and count after identification and distinction by professionals. The basic workload is large and the operation efficiency Low, especially in summer, catches are prone to death and rancidity, which increases the difficulty of investigation
The catches entering the fishing gear are mixed and prey on each other, which affects the accuracy of the survey results

Method used

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  • Sorting fishing gear for fishery resource investigation and using method of sorting fishing gear
  • Sorting fishing gear for fishery resource investigation and using method of sorting fishing gear
  • Sorting fishing gear for fishery resource investigation and using method of sorting fishing gear

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Embodiment 1

[0029] as attached figure 1 As shown, the present embodiment provides a kind of fishing tackle for the investigation of fishery resources. The fishing tackle includes a net bag unit 1 and a sorting unit 2. The net bag unit 1 uses a net to cover the steel skeleton to make it, and the caught fish can be Carry out classification and assist fishery resources investigation. The mesh bag unit 1 is provided with an inflatable unit 14 to adjust the mesh or buoyancy of the net, such as by setting an inflatable belt as the inflatable unit 14 in the middle of the net clothing and the steel skeleton in the middle and upper part of the mesh bag unit 1, by adjusting the air in the air bag. The amount of inflation can adjust the buoyancy of the fishing gear, and further provide upward pulling force and horizontal expansion force for the net on the basis of the steel skeleton, so as to increase the opening degree of the mesh and achieve the purpose of adjusting the mesh size. Preferably, the...

Embodiment 2

[0039] As shown in 1, the difference between this embodiment and the above embodiments is that the first hollow fishing line 143 and the second hollow fishing line 144 have a supporting bridge 141 inside. The support bridge 141 is a cylindrical elastic member obtained by connecting meshes with several grids radially end to end. Before weaving the net clothes, the support bridge 141 is pre-embedded in the appropriate position in the hollow fishing line. On the one hand, the hollow structure is maintained, especially to ensure that the hollow fishing line at the intersection still has a hollow structure after weaving. On the other hand, it can buffer water. Press the hollow fishing line to maintain the hollow structure of the hollow fishing line after the fishing gear is put into the water. In order to save material, the support bridge 141 is arranged in the hollow fishing line at the intersection.

Embodiment 3

[0041] As shown in 1, the difference between this embodiment and the above-mentioned embodiment is that the fishing gear used for fishery resource investigation also has an inflation unit 14, which adjusts the air pressure in the fishing gear by inflation and deflation. Specifically, the inflation unit 14 includes an inflation pump 145, a pipeline 146 and a valve 147, and these structures do not enter the water body. The air pump 145 is connected to the pipeline 146, and the valve 147 is arranged on the pipeline 146. The pipeline 146 communicates with the first hollow fishing line 143 and the second hollow fishing line 144 respectively, so as to realize air pressure regulation and change the first hollow fishing line 143 and the second hollow fishing line. The inner and outer diameters of the wire 144, thereby changing the mesh size. Air pump 145 is connected with external power source, guarantees the power of charging and deflation.

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Abstract

The invention discloses a sorting fishing gear for fishery resource investigation and a using method of the sorting fishing gear. The fishing gear comprises a net bag unit provided with an inflation unit, wherein the net bag unit is divided into an entering net bag, a screening net bag and a collecting net bag which sequentially communicate with one another, and the exterior of the collecting net bag is connected with a sorting unit; the sorting unit comprises a rotating shaft and a supporting piece, one end of the supporting piece is arranged on the rotating shaft, a petal type net bag wall is arranged outside the collecting net bag, the end of the petal type net bag wall is movably connected with the supporting piece through a second connecting part, and when the petal type net bag wall is separated from the supporting piece, the end of the petal type net bag wall can be closed. By arranging the inflation unit, the size of the outlet of the fishing gear is adjusted, and then catches are classified, so that the operation time of fishery resource investigation is shortened, and good popularization prospects are achieved.

Description

technical field [0001] The invention belongs to the technical field of fishing gear, and in particular relates to a fishing gear used for fishery resource investigation and a using method. Background technique [0002] Fishery resource investigation refers to the investigation of the reproduction, growth, death, migration, distribution, quantity, habitat environment, prospect and means of development and utilization of economic organisms or groups in water areas, and is the basis for aquatic fishing and fishery resource management. sex work. The survey of fishery resources can be divided into management survey and development survey. The former is carried out on developed fisheries, aiming at rational use of resources to achieve maximum sustainable yield. [0003] In order to obtain the resource data of fishery organisms, the survey of fishery resources needs to use fishing gear for fishing, and then measure and count after identification by professionals. The basic worklo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/90A01K74/00
CPCA01K61/90A01K74/00Y02A40/81
Inventor 殷稼雯张彤晴付言言刘小维刘燕山谷先坤李大命唐晟凯赵沐子张增桂泽禹朱莉
Owner FRESHWATER FISHERIES RES INSITUTE OF JIANGSUPROVINCE
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