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Method for trapping octopusvariabilis and trappers used by same

A technology for traps and octopuses is applied in the field of traps and octopuses, which can solve the problems of not being able to catch octopuses well, and achieve the effect of simple and easy method, saving manpower, material resources and financial resources.

Active Publication Date: 2012-11-14
OCEAN UNIV OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for trapping long octopus and the trap used, which can solve many problems that can not catch long octopus well under existing conditions

Method used

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  • Method for trapping octopusvariabilis and trappers used by same
  • Method for trapping octopusvariabilis and trappers used by same

Examples

Experimental program
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Effect test

Embodiment 1

[0017] Embodiment 1: The long octopus is in the mature stage in spring and summer, and the individual is relatively large, which is suitable for catching. Utilize the trap of larger specification, its whole pipe wall thickness should be even, the inner diameter of water inlet pipe 2 tube chambers is 4cm, the inner diameter of water inlet pipe mouth 1 is larger than water inlet pipe 2 inner diameters 2cm, the clip of water inlet pipe 2 and body 5 The angle is 150°, the inner diameter of the water outlet pipe mouth 3 is 2cm, the included angle between the central axis of the water outlet pipe 4 and the central axis of the pipe body 5 is 110°, and the distance from the connection between the pipe body 5 and the water outlet pipe 4 to the water outlet pipe mouth 3 is gradually From thick to thin, the inner diameter of the tube body 5 is 4cm, and 4cm near the outlet pipe 4 has a section of capsule 6 with an arc of 2π / 3 on the longitudinal section and a lower arc of 5π / 6. like fig...

Embodiment 2

[0018] Embodiment two: the long octopus is in growth period in autumn and winter, and the individual is smaller, and the trap of lesser specification can be utilized, and its whole pipe wall thickness is uniform, and the inner diameter of water inlet pipe mouth 1 is larger than 1.5cm of water inlet pipe 2 inner diameters, and water inlet pipe 2 The inner diameter of the lumen is 3.5cm, and the included angle between the water inlet pipe 2 and the pipe body 5 is 160°. The inner diameter of the water outlet pipe mouth 3 is 1.5cm, and the included angle between the central axis of the water outlet pipe 4 and the central axis of the pipe body 5 is 120°. The inner diameter of the tube body 5 is 3.5 cm, and 3 cm away from the water outlet pipe 4 there is a tube capsule 5 with a radian of π / 2 on the longitudinal section and a lower radian of 2π / 3. like figure 2 As shown, on a polyethylene rope with a diameter of 12mm, a trap is tied every 25cm, and 1000 traps are continuously tied ...

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Abstract

The invention discloses a method for trapping octopusvariabilis and trappers used by the same. The method comprises the following steps of: (1) preparing the trappers; (2) binding bending positions at two ends of a plurality of trappers by using polyethylene ropes and serially connecting the bending positions in sequence in a left-right inverted manner; (3) placing the serially-connected trappersand the polyethylene ropes on the argillaceous sea bed where octopusvariabilis often goes and exposing water inlet pipe ports and water outlet pipe ports of the trappers out of the substrate; (4) leading the octopusvariabilis to run out of the water outlet pipe ports to directly enter baskets by only placing the baskets for collection at the water inlet pipe ports of the trappers and slightly stimulating the water outlet pipe ports without extracting the polyethylene ropes during trapping the octopusvariabilis; and (5) trapping once every week or two weeks according to the season. The trappers consist of the water inlet pipe ports, water inlet pipes, water outlet pipe ports, water outlet pipes, pipe bodies and pipe bags. The method is simple and feasible, the device is convenient, economic and practical, and large amount of labor force, physical resources and financial resources in the implementation process can be saved.

Description

technical field [0001] The invention belongs to the technical field of seafood fishing, and in particular relates to a method for trapping long octopuses and a trap used therein. Background technique [0002] Octopus minor belongs to Cephalopoda, Octopus order, Octopus family, Octopus genus, commonly known as horse octopus, giant octopus or octopus, widely distributed in the Bohai Sea, Yellow Sea, East China Sea, South China Sea and Japanese archipelago waters. The life history of long octopus is about one year, and its breeding peak in the north is from April to July. The octopus is delicious. As an important export seafood in northern my country, its fresh, dried and processed products have a broad market at home and abroad. It is the main cephalopod exported to South Korea and Japan. [0003] At present, the main method of obtaining long octopus is to trawl. The disadvantages are that it is expensive, inconvenient to operate, and it is very easy to cause the body of long...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K80/00
Inventor 郑小东钱耀森王培亮李琪
Owner OCEAN UNIV OF CHINA