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River-blocking fish-collecting device

A technology of fish collection and fish collection device, which is applied in fishing, application, animal husbandry, etc., can solve the problems of small size, difficult fixing of net gear, small size of fish collection device, etc., and achieve the effect of avoiding damage

Inactive Publication Date: 2015-06-10
CHINA THREE GORGES UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current method of collecting fish without damage is mostly found in nets, such as: ground cages, and there are also fish collectors for collecting fish, but the nets are not easy to fix or the size is too small, and the fish collectors are relatively small in size compared to the river However, the effect of collecting fish when used alone is low

Method used

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  • River-blocking fish-collecting device
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  • River-blocking fish-collecting device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] M-type river barrage and fish collection system:

[0019] It includes two V-shaped fish guide grids 2 and three fish collectors 1 . One end of the first V-shaped fish guide grid is connected to the left bank, the V-shaped end is connected to the first fish collector, the other end of the first V-shaped fish guide grid is connected to the second fish collector, and the second fish collector is connected to the second V-shaped fish guide One end of the grid, the other end of the second V-shaped fish guide grid is connected to the right bank, and the V-shaped end of the second V-shaped fish guide grid is connected to the third fish collector.

Embodiment 2

[0021] Double V-shaped river barrage and fish collection system:

[0022] It includes two V-shaped fish guide grids 2 and one fish collector 1. One end of the first V-shaped fish guide grid is connected to the left bank, the other end is connected to the right bank, and the end of the V-shaped fish guide grid is connected to one end of the first fish collecting device;

[0023] One end of the second V-shaped fish guide grid is connected with the left bank, the other end is connected with the right bank, and the end of the V-shaped fish guide grid is connected with the other end of the second fish collector.

Embodiment 3

[0025] Z-type river barrage and fish collection system:

[0026] It includes two V-shaped fish guide grids 2 and two fish collectors 1 . One end of the first V-shaped fish guide grid is connected to the left bank, the end of the V-shaped fish guide grid is connected to the first fish collector, and the other end is connected to the second fish collector;

[0027] One end of the second V-shaped fish guide grid is connected to the first fish collector, the end of the V-shaped fish guide grid is connected to the second fish collector, and the other end of the second V-shaped fish guide grid is connected to the right bank.

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Abstract

The invention provides a river-blocking fish-collecting device. The device comprises at least one fish-collecting unit and at least one V-shaped fish-guiding barrier, wherein the fish-collecting unit is provided with a fish-collecting box; the left and right sides close to the inlet of the fish-collecting unit are provided with the V-shaped fish-guiding barriers connected with the inlet of the fish-collecting unit and river banks. The river-blocking fish-collecting device provided by the invention realizes high-proportion collecting and capturing of upstream and downstream fishes in a whole river reach through fish guiding in the river, and the fishes are prevented from damage.

Description

technical field [0001] The invention relates to a device for blocking rivers and collecting fish. Background technique [0002] The migration of fish is a movement of changing habitats with a certain direction, a certain distance and a certain time. This movement is usually clustered, regular, periodic, and hereditary in nature. According to the purpose of migration, migration can be divided into feeding migration, winter migration and spawning migration. Damming the river will block or delay the migration of fish, cause loss or change of habitat, and lead to the reduction or even extinction of fish. Under certain circumstances, such as: dams have been built both upstream and downstream of the river, and it is necessary to catch and transfer the upstream or downstream fish in the river to specific waters. The current method of collecting fish without damage is mostly found in nets, such as: ground cages, and there are also fish collectors for collecting fish, but the nets...

Claims

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Application Information

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IPC IPC(8): A01K69/00
CPCA01K69/00A01K79/00
Inventor 石小涛刘德富陈求稳王从锋路波乔娟刘伟朱海峰
Owner CHINA THREE GORGES UNIV