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Artificial fish spawning bed

A technology for spawning beds and fish, applied in the field of aquaculture, can solve the problems of difficult to ensure water flow conditions, inconvenient construction, small application scope, etc., and achieve the effects of improving hatching rate, simple structure, and low manufacturing difficulty.

Inactive Publication Date: 2017-02-22
CHINA POWER CONSRTUCTION GRP GUIYANG SURVEY & DESIGN INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide an artificial fish spawning bed to solve the problems of small application range, inconvenient construction, high cost and difficulty in guaranteeing the required water flow conditions in the existing fish spawning places

Method used

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Embodiment

[0024] Such as figure 1 As shown, the device selects high-quality wood on the spot, saws it into planks with a thickness of 8-12 cm, and nails the planks with rivets to make a square frame 1 with a height of 60-150 cm. The square frame 1 of different areas can be made according to the size of the spawning ground and the expected scale. Several water spray pipes 2 are laid on the bottom of the square frame 1, and the water spray pipes 2 are made of rubber tubes, and holes are drilled on each rubber tube to form water spray holes 3. The water inlet pipe 4 passes through the side wall of the box 1 and is connected with the water pump 5 . Laying coarse gravel layer 6 and pebble layer 7 successively above water spray pipe 2, the laying height of gravel layer 6 and pebble layer 7 is slightly lower than square frame 1 height. Start the water pump 5 so that the water flow is ejected from the bottom of the box 1 along the gap between the gravel layer 6 and the pebble layer 7, forming...

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Abstract

The invention discloses an artificial fish spawning bed. The artificial fish spawning bed comprises a square frame with the top open, multiple water inlet pipes arranged in parallel are installed at the bottom of the square frame, one end of each water inlet pipe stretches out of the square frame and then is connected with an external water pump, multiple spray pipes arranged at intervals are installed on each water inlet pipe, spray holes arranged at intervals are formed in the top end of each spray pipe, a coarse gravel layer is laid on the bottom in the square frame, and a pebble layer is laid on the coarse gravel layer. Water flow sprayed out of the bottom of the square frame continuously flows out along gaps between the coarse gravel layer and the pebble layer to form subterranean flow. On one hand, water flowing fish can be stimulated to spawn for reproduction, on the other hand, sufficient oxygen can be provided for fertilized ova sinking in swallets, and the hatching rate of the fertilized ova is increased; in addition, the artificial fish spawning bed is simple in structure, low in manufacturing difficulty and low in cost.

Description

technical field [0001] The invention relates to the technical field of aquaculture, in particular to an artificial fish spawning bed. Background technique [0002] The construction of water conservancy and hydropower projects and the cascade development of rivers have changed the hydro-hydraulic conditions of the river, resulting in the reduction of the spawning grounds of the indigenous fishes that are prone to flow or being submerged by the reservoir and disappearing, which in turn has led to a decrease in the population of indigenous fishes that are prone to flow decline or even extinction. Currently, setting artificial fish nests in limited river sections is considered to be an effective way to increase fish breeding sites. However, most of these artificial fish nests are floating nests, which are more suitable for fish that like to lay their eggs in aquatic plants, but not very suitable for fish that like to lay their eggs in crevices and gravels. In view of the breed...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/17
CPCY02A40/81
Inventor 罗思王猛马卫忠陈凡魏浪赵谊纵霄金诗语
Owner CHINA POWER CONSRTUCTION GRP GUIYANG SURVEY & DESIGN INST CO LTD