Equipment and method capable of safely acquiring aquatic organism samples

Abstract

The invention relates to equipment and a method capable of safely acquiring aquatic organism samples and an acquisition method, wherein a central processing unit (CPU) is connected with a fractional-frequency comparison module IC3, a 16-digit high-precision data acquisition card DAQ, a digital display module IC4 and a voltage level comparison module IC6, respectively; the fractional-frequency comparison module IC3 is connected with light-emitting diodes LED4 and LED5 and a loudspeaker Y; the fractional-frequency comparison module IC3 is connected with a photocoupling circuit module IC5; the photocoupling circuit module IC5 is connected with a magnetic field conversion unit module MT, an inductor L1 and a monitoring switch K8; the monitoring switch K8 is connected to an underwater output load resistor Z1. During acquisition, a carrying manner of the equipment, the types and the number of the aquatic organism samples to be acquired are determined, and a net gear is prepared; in addition, the range of the output electric field intensity is determined; an output electrode is put in water; the equipment is turned on to generate a pulse electromagnetic field in the water area surrounding the electrode; when the aquatic organism samples move to the position of the prepared net gear, the aquatic organism samples are gained. The equipment provided by the invention is light in weight and convenient to carry; the aquatic organism samples are complete and safe to use; the acquisition rate is high and effective group data can be obtained.

Description

technical field [0001] The invention relates to a device and a collection method capable of safely collecting aquatic biological samples. Background technique [0002] At present, the water ecology of all river basins in my country is facing a variety of threatening factors, such as: hydropower development, lake control projects such as river gates, embankment construction and other engineering factors; overfishing, water pollution and lake eutrophication, waterway transportation, river mining, etc. sand and other stress factors. [0003] In view of the various problems faced by the water ecology of domestic river basins, it is necessary to carry out monitoring and evaluation of water ecology from multiple aspects such as the status of aquatic organisms and fishery resources, the ecological health of rivers and lakes, the mechanism of action of stress factors and the degree of their impact. This requires the collection of a large number of aquatic biological samples in the t...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to solve the difficulty and high cost of aquatic biological sample sampling in the current field of water ecological environment protection, and to provide a method that can quickly obtain healthy aquatic biological samples under different water quality conditions such as fresh water and sea water; Equipment that can safely collect aquatic biological samples with wide adaptability, high efficiency, reliable performance, and safe collection

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