Fish catching device for direct and rapid river health biological indication method

A fast and river technology, applied in the field of fishing gear, can solve the problems of fish damage, fish death, etc., and achieve the effect of increasing the probability

Active Publication Date: 2015-10-21
CHINESE RES ACAD OF ENVIRONMENTAL SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In this method, the quantity and type of fish in the river need to be studied, and the fishing device of the prior art will cause certain damage to the fish during work, causing the death of the fish, so it is not suitable for this method

Method used

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  • Fish catching device for direct and rapid river health biological indication method
  • Fish catching device for direct and rapid river health biological indication method
  • Fish catching device for direct and rapid river health biological indication method

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Embodiment Construction

[0025] The above and other technical features and advantages of the present invention will be described in more detail below in conjunction with the accompanying drawings.

[0026] see figure 1 , is a structural diagram of the fish catcher used in the intuitive and rapid river health biological indicator method of the present invention. Described fish catcher comprises fish frame 1, stay rope 2, fish frame cover 3, fish frame 5, elastic clip 6, pressure sensor 7, elastic hose 8, runner 9 and motor 4.

[0027] The fish frame 1 is a barrel-shaped structure for catching fish, and several small holes through which fish cannot pass are set on it, so as to reduce the resistance of the fish frame 1 when it moves in water.

[0028] Please combine figure 2 As shown, it is a partial schematic diagram of the fish catcher used in the visual and rapid river health biological indicator method of the present invention, which is figure 1 Schematic diagram of the partially enlarged structu...

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Abstract

The present invention provides a fish catching device for a direct and rapid river health biological indication method. The fish catching device comprises a fish frame, a pull rope, an elastic clip piece, a fish frame cover, a motor and a pressure sensor; the inner bottom of the fish frame is connected with one end of the pull rope; one end of the pull rope is connected with the fish frame and the other end of the pull rope is connected with the motor; the motor is used for controlling the hoisting of the fish frame through the pull rope; the elastic clip piece is arranged on the pull rope and is used for fixing the fish frame cover; a fish frame cover central hole is formed in the center of the fish frame cover, and the elastic clip piece penetrates through the fish frame cover central hole to fix the fish frame cover, so as to prevent fishes from escaping; and the pressure sensor is arranged on the pull rope and is used for controlling the running of the motor. The fish frame type design provided by the present invention is different from a fish hook in traditional fish catching; fishes are certainly injured when being caught by a fish net; and the fish catching device provided by the invention does not injure the fishes in a fish catching process.

Description

technical field [0001] The invention relates to a fishing device, in particular to a fishing device used in an intuitive and rapid river health biological indicator method. Background technique [0002] Comprehensive judgment of river health status is the basic work for ecological restoration of rivers and original ecological service functions of rivers. However, at present, the evaluation indicators of river health status adopted in my country are limited to physical and chemical indicators such as dissolved oxygen (DO) and chemical oxygen demand (COD), ignoring the health status of aquatic organisms, which is an important part of the health of river ecosystems. Comprehensive and scientific judgment of river health status and pressure will lead to unclear goals of river ecological restoration and protection, and cannot reflect the relationship between water quantitative and chemical indicators and the health of water ecosystems. At the same time, physical and chemical indic...

Claims

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Application Information

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IPC IPC(8): A01K69/00
CPCA01K69/00
Inventor 范俊韬张远高欣贾晓波刘思思马淑芹胡春明
Owner CHINESE RES ACAD OF ENVIRONMENTAL SCI
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