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- Title
栅藻对3 种水华有害藻的抑制作用研究.
- Authors
祝倩倩; 徐靖昂; 谢兵; 张晓林; 严小军
- Abstract
The existence of harmful algal and the resulting blooms are urgent problems to be solved in aquaculture. Microalgae is commonly used in biological control of blooms for water quality treatment in aquaculture waters. This paper studied the inhibitory effects of Scenedesmus sp. and its extracellular metabolites on three typical cyanobacteria Microcystis aeruginosa, Microcystis flos-aquae and Anabaena flos-aquae. The effects of extracellular metabolites on chlorophyll-a content and cell surface microstructure were also investigated. The results showed that the extracellular metabolites of Scenedesmus sp. have obvious inhibitory effects to the three harmful algae, and the inhibition rate to M. aeruginosa and M. aqua reached 53.8% and 44.9%, respectively. The content of chlorophyll-a in M. aeruginosa decreased significantly when the extracellular metabolites were treated for 144 h, and the cell membranes of the three harmful algae were damaged. The inhibition to algal blooms and its effects on photosynthesis and cell structure laid a theoretical foundation for its widespread application in the prevention and control of aquaculture blooms.
- Subjects
WATER quality management; MICROCYSTIS aeruginosa; WATER purification; SCENEDESMUS; ANABAENA; MICROCYSTIS; ALGAL blooms
- Publication
Environmental Science & Technology (10036504), 2023, Vol 46, Issue 5, p23
- ISSN
1003-6504
- Publication type
Article
- DOI
10.19672/j.cnki.1003-6504.2002.22.338