Abstract
With the introduction of relevant national policies, large numbers of environmental projects were carried out for remediation and quality improved, but in the main indicators of long-term quality control and operational cost are still a big issue. In this study, the effects of water quality control by aeration and algae-eating fish species, Mugil cephalus and Salmoniformes, were applied to the test in a landscape pond. The results showed that both ways had similar effect on the pollutants, CODCR, total nitrogen and total phosphorus decreased by about 56%, 59% and 35% respectively, and the water transparency also improved significantly. However, before the application of ecological management in real project, detail environmental conditions and pollution load analysis should be carried out for ensuring safety and efficiency.
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