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Method for trawling live young fishes

A technology of trawling and juvenile fish, applied in fishing, fishing nets, applications, etc., can solve the problems of difficult fishing and collection of live juvenile fish, high fishing mortality, etc., to prevent strong stress and short-term hypoxic damage, and improve survival rate , Reduce the effect of net friction

Inactive Publication Date: 2012-07-25
EAST CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI
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  • Claims
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Problems solved by technology

However, in the process of fishing with traditional nets such as trawls, gillnets, and stretch nets, the fishing mortality rate is high, especially when trawl fishing methods are used, for some pelagic fish with strong stress and fast swimming speed, It is difficult to catch and collect live juvenile fish

Method used

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  • Method for trawling live young fishes
  • Method for trawling live young fishes

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Embodiment Construction

[0015] Below in conjunction with specific embodiment, further illustrate the present invention. It should be understood that these examples are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the teachings of 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.

[0016] Embodiments of the present invention relate to a live trawling method for juvenile fish, comprising the following steps:

[0017] (1) Make a hole on the side of the drum, and the hole is located close to the mouth of the drum. The location of the hole can continue from the edge of the mouth of the barrel to the middle of the barrel.

[0018] (2) Install the drum at the rear of the bag net at the tail of the trawl net. ...

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Abstract

The invention relates to a method for trawling live young fishes, which includes: reserving holes close to an opening of a barrel on the barrel; mounting the barrel at a rear sack of a trawl net; performing trawling in natural waters by single boats; and hauling the trawl net to collect young fishes captured in the barrel. By the method, high stress and injury by transient anoxia after the fishes leave water can be prevented, and the survival rate of the young fishes caught by trawling can be increased evidently.

Description

technical field [0001] The invention relates to a fish fishing method, in particular to a live trawling method for juvenile fish. Background technique [0002] In the process of fish breeding, breeding, and breeding research, it is an indispensable and important way to catch live fish juveniles from natural waters and domesticate them temporarily to obtain natural populations. However, in the process of fishing with traditional nets such as trawls, gillnets, and stretch nets, the fishing mortality rate is high, especially when trawl fishing methods are used, for some pelagic fish with strong stress and fast swimming speed, It is difficult to catch and collect live juvenile fish. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a live trawling method for juvenile fish, which can improve the survival rate of juvenile fish caught by trawling. [0004] The technical scheme adopted by the present invention to solve i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K73/02
Inventor 张涛侯俊利刘鉴毅赵峰庄平章龙珍冯广朋黄晓荣王妤宋超张琴星杨阳常有民黄桂云
Owner EAST CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI
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