Dynamic regulation of ecological water quality in fishery waters based on factorial analysis

Abstract

Aiming at the problems of poor water quality regulation and eutrophication caused by traditional methods of water quality regulation in fishery waters, a dynamic regulation method of ecological water quality in fishery waters based on factor analysis was proposed in this paper. This paper evaluates the current situation of the ecological water quality of fishery waters by analyzing the concept of water ecology, water safety, water health, water landscape and water economy. Taking the loach breeding base of H Company in Zhongshan city, Guangdong Province as the object of study, according to the different plants put into the pond, the cultivation pond was divided into reed-snail treatment group, cattle-snail treatment group and snail control group. The purification effect of nitrogen and phosphorus in aquatic pond water was studied by using the purification system composed of aquatic plants and aquatic animals. The experimental results showed that the purification effect of the reed snail treatment group on TN, TP and NH4+-N in the pond water was better than that of the cattail-Snail treatment group, and the purification effect of COD was weaker than that of the cattail-snail treatment group. The purification effect of the two groups on NO2–N was basically the same. The eutrophication degree of water body decreased by 42% after the application of this method, indicating that this method can regulate the ecological water quality of fishery waters. • A dynamic regulation method of ecological water quality of fishery waters based on the analysis of factors is proposed. • Factor analysis method is used to evaluate the current situation of ecological water quality in fishery waters, which can comprehensively regulate and control the ecological water quality in fishery waters. • This paper analyzes the five in one principle, regulation mechanism and regulation mode of fishery water ecosystem, which can purify the water quality of aquaculture pond. • The dynamic regulation mechanism of ecological water quality in fishery waters is of great significance to maintain the healthy, sustainable and stable development of fishery water resources and environment.