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Natural breeding and hatching protection device for specific valuable and rare fishes in upstream of Yangtze River and use method

A natural reproduction and protection device technology, applied in the direction of measuring devices, applications, fish farming, etc., can solve problems such as difficult to realize real-time monitoring and effective protection of fish eggs and juvenile fish, achieve shortened reproduction cycle, convenient maintenance and operation The effect of simple process

Inactive Publication Date: 2022-07-05
CHINA THREE GORGES CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the defects that the existing technology of protecting the fish reproduction environment only targets a certain stage of fish reproduction, and it is difficult to realize real-time monitoring and effective protection of fish eggs and young fish, thereby providing a Protective device for natural breeding and hatching of unique rare fish in the upper reaches of the Yangtze River and its application method

Method used

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  • Natural breeding and hatching protection device for specific valuable and rare fishes in upstream of Yangtze River and use method
  • Natural breeding and hatching protection device for specific valuable and rare fishes in upstream of Yangtze River and use method
  • Natural breeding and hatching protection device for specific valuable and rare fishes in upstream of Yangtze River and use method

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Experimental program
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Effect test

specific Embodiment approach

[0049] like figure 1 A specific embodiment of the protection device for natural breeding and hatching of unique and rare fish in the upper reaches of the Yangtze River shown, including:

[0050] support platform 1;

[0051] The water separation box 2 is fixed on the support platform 1;

[0052] The spawning ground identification unit, which includes an underwater feature imager 3, a visual fish finder 4, a turntable 5 and a comprehensive discriminating body, the turntable 5 is rotatably installed on the water separation box body 2 and the rotation axis is perpendicular to the support platform 1, The underwater feature imager 3 and the visual fish finder 4 are fixed on the turntable 5. The underwater feature imager 3 is suitable for identifying the river bottom, topographic conditions and plant coverage, and the visual fish finder 4 is suitable for capturing the density of fish. And the density of female broodstock with abdominal bulge, the comprehensive discriminating body ...

Embodiment 2

[0076] refer to figure 2 , the use method of the protection device for natural breeding and hatching of unique rare fishes in the upper reaches of the Yangtze River provided by this embodiment includes the following steps in turn:

[0077] S1. Place the natural breeding and hatching protection device for unique and rare fish in the upper reaches of the Yangtze River underwater, start the spawning ground identification unit, and make the entire device sweep along the river in the region under the action of external force;

[0078] S2. After the comprehensive discriminator determines that the suitability of the spawning field is higher than the set threshold, the entire device is lowered to contact the bottom of the water;

[0079] S3. After the device is stabilized, start the frequency-controlled sound wave unit, and the underwater energy storage power supply supplies power to the variable-frequency sound-wave starter, and the variable-frequency sound wave starter intermittent...

specific example

[0088] Investigate the habitat, life cycle, living habits and spawning period of endemic fish in the Yangtze River, determine the necessary environmental conditions for spawning grounds based on historical fish spawning information and hydrological information, and establish the necessary environment for the spawning grounds of endemic fish in the Yangtze River. Condition element database, in which the necessary environmental conditions for spawning grounds include river bottom distribution, topographic and geomorphological features, hydrological and hydrodynamic conditions and plant community composition; river bottom sediment distribution includes bottom bank structure, bottom material and sedimentary dynamics; topographic and geomorphological features include Topographic relief, channel roughness, channel width-depth ratio and channel narrowness; hydrological and hydrodynamic conditions include water level, water temperature, flow velocity, turbidity and dissolved oxygen conten...

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Abstract

The invention relates to the technical field of water conservancy project ecological protection, in particular to a natural breeding and hatching protection device for specific valuable and rare fishes in the upstream of Yangtze River and a using method. The device comprises a supporting platform; a water insulation tank body; the spawning site identification unit comprises an underwater ground object imager, a visual fish finder, a turntable and a comprehensive discriminator, the underwater ground object imager and the visual fish finder are fixed on the turntable, and the comprehensive discriminator is located in the water separation tank body; the comprehensive discriminator is electrically connected with the underwater ground feature imager and the visual fish finder and is suitable for judging the suitability of the spawning site according to the detection values of the underwater ground feature imager and the visual fish finder; the frequency control sound wave unit comprises a variable-frequency sound wave starter and an underwater energy storage power supply, the variable-frequency sound wave starter is fixed in the water separation tank body, and the underwater energy storage power supply is suitable for supplying power to the variable-frequency sound wave starter. The device can monitor a plurality of continuous breeding processes such as spawning site identification, fish luring, spawning and hatching, so that real-time monitoring and effective protection of roes and juvenile fishes are realized.

Description

technical field [0001] The invention relates to the technical field of ecological protection of water conservancy projects, in particular to a protection device for natural breeding and hatching of rare and unique fish in the upper reaches of the Yangtze River and a method for using the same. Background technique [0002] my country has completed the Three Gorges, Xiangjiaba, Xiluodu and other water conservancy and hydropower projects with international leading level. The construction of a large number of projects, on the one hand, has exerted important benefits such as flood control, power generation, shipping, and water supply, and on the other hand, it has also brought risks to the water ecological environment, especially the river habitat and aquatic biodiversity in the upper and middle reaches of the Yangtze River have a significant impact. According to the 2015 evaluation results of the "China Biodiversity Red List", 79 of the 286 species of fish in the upper reaches o...

Claims

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Application Information

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IPC IPC(8): A01K61/17A01M29/18G01D21/00
CPCA01K61/17A01M29/18G01D21/00Y02A40/81
Inventor 戴会超毛劲乔王康戴杰胡鹏蒋云钟赵汗青龚轶青杨吉
Owner CHINA THREE GORGES CORPORATION
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