A biological water quality monitoring system and monitoring method for fish behavior

Abstract

The invention relates to a biological water quality monitoring system by fish behaviors and a monitoring method thereof. The monitoring system provided by the invention comprises a data acquisition device, a data analysis device and a transparent water tank, and is characterized in that the water tank is successively divided into a pipelining buffer area, a fish shoal observation area and a filtration adjusting area by netted fish baffle plates; the sidewall of the pipelining buffer area is provided with a water inlet pipe; the outer portion of the fish shoal observation area is equipped witha light source; the sidewall of the filtration adjusting area is provided with a water outlet pipe; the filtration adjusting area is provided with a circulating pump; and the sidewall near the bottomof the water tank is equipped with a draining valve. The monitoring method provided by the invention comprises the following steps of: shooting the behaviors of the tested fish shoal by the use of a camera to obtain an image sequence, sending into a computer for real time image processing and data analysis, comparing obtained average moving speed, dispersion and the like and a preset threshold value, and determining whether the water quality is polluted or not. According to the invention, parametric records of fish behaviors in hydrostatic, pipelining and water-exchanging tests can be simultaneously realized, and the behaviors of individual and colonial organism can be simultaneously measured.

Description

technical field [0001] The invention relates to the technical field of environmental monitoring, in particular to a biological water quality monitoring system for fish behavior and a monitoring method thereof. Background technique [0002] Water is an indispensable and important factor for human survival and development, and the safety of water quality affects the living environment and life and health of human beings. In recent years, the quality of water resources in my country has been declining, the water environment has continued to deteriorate, and unexpected accidents such as chemical leakage and artificial poisoning have frequently occurred. Water quality monitoring is essential. So far, there are two main methods for monitoring water quality at home and abroad: physical and chemical analysis method and biological monitoring method. Biomonitoring method selects appropriate indicator organisms to characterize changes in water quality through changes in physiological ...

AI Technical Summary

Problems solved by technology

[0003] The existing biological water quality monitoring system of fish behavior usually includes a data acquisition device and a data analysis device, which are connected by a data transmission line. The data acquisition device is provided with a monitoring tank, and the test fish is placed in the monitoring tank. Observe its behavior in water, and transmit the collected result data to the data analysis device for analysis. It has the advantages of simple structure and convenient use. Recording of Fish Behavioral Parameters in Three Aquatic Environments

[0004] A Chinese patent based on a water quality monitoring method based on the movement characteristics of aquatic organisms in images (Patent No. 201010256880.0) discloses a method for judging water quality by recording the behavior of a single species of carp. This method only monitors the behavior of a single fish in real time , to calculate its swimming speed, rotation angle, and spatial position, but the behavior of a single fish has certain randomness, which will lead to certain errors, while fish is a group animal, and the group regularity is obvious, so it is necessary to carry out multi-fish Monitoring, real-time quantification of population parameters

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