Freshwater mysis fishing device

A mysis and freshwater technology, applied in the field of aquaculture, can solve the problems of time-consuming and high mortality, achieve continuous fishing, avoid long time-consuming, and reduce mortality

Inactive Publication Date: 2018-08-31
FRESHWATER FISHERIES RES INSITUTE OF JIANGSUPROVINCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the invention is to design a freshwater mysis fishing device for the time-consuming and high mortality problems of existing mysis fishing

Method used

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Embodiment Construction

[0020] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0021] Such as Figure 1-2 shown.

[0022] A freshwater mysis fishing device, which includes a height-adjustable water inlet pipe 1, a shrimp guide plate 2 and a fishing net 3. The height-adjustable water inlet pipe 1 is installed in a pool 4 that seems to carry out mysis fishing. Its upper end can drop along with the drop of the water surface so that the water flow containing mysis can enter the height-adjustable water inlet pipe 1. During specific implementation, the height-adjustable water inlet pipe 1 can adopt stepless telescopic pipe or sleeve type telescopic pipe , the elastic pressure beads 8 can be used to realize the positioning between the expansion tubes of each section. When the external force overcomes the elastic force of the elastic pressure beads 8, the expansion tubes can shrink or elongate. The height-adjustable water inlet pipe 1 c...

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Abstract

A catching device for freshwater opossum shrimps is characterized by comprising a height-adjustable water inlet pipe (1), shrimp guiding plates (2) and a catching net (3); the height-adjustable water inlet pipe is installed in a pond (4) where opossum shrimp catching is about to be carried out, a drain pipe (5) is connected to the lower end of the height-adjustable water inlet pipe, a water outlet of the drain pipe is located in a lower pond (6) adjacent to the pond, and the catching net used for collecting opossum shrimps is installed in the lower pond; one side of each shrimp guiding plate is attached to the height-adjustable water inlet pipe, and the other side of each shrimp guiding plate is attached to the wall of the lower pond so that opossum shrimps swimming along the wall of the pond at night can enter the height-adjustable water inlet pipe under the guidance of the shrimp guiding plate and the action of suction force of water flow and enter the catching net finally. By means of the catching device, the survival rate of opossum shrimps can be greatly increased, the death rate caused by catching can be reduced, and stress response death can be avoided as opossum shrimps enter the catching net in a completely free swimming state.

Description

technical field [0001] The invention relates to an aquaculture technology, in particular to a mysis fishing technology, in particular to a freshwater mysis fishing device utilizing the living characteristics of mysis. Background technique [0002] The vast majority of mysis live in the ocean, and there are very few freshwater species. The mysis in the ocean is widely distributed in the surface, middle and bottom water of the nearshore and ocean, and has planktonic and benthic life. The species of benthic life have the habit of moving vertically at night and become an important component of zooplankton. . Mysids are widely distributed in the ocean, and their habitats are also diverse. Some live on the shore, some species live in the bay of the inner harbor; some live in the surface, middle or deep layers of the ocean; some live on the bottom of the sea, even in the depths of caves, with degenerated eyes; some lurk at the bottom of the water In the sand, or clinging to the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K79/00
CPCA01K79/00
Inventor 史杨白王崇华赵福海刘国兴郝忱丁淑燕郑萧宇
Owner FRESHWATER FISHERIES RES INSITUTE OF JIANGSUPROVINCE
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