Abstract
In order to effectively control the outbreak of Drupa and Drupella and protect the coral reef ecosystem, the biological characteristics, outbreak period, damage degree and causes of Drupa and Drupella were summarized. At the same time, based on the investigation and analysis of the South China Sea, the control measures are put forward. The results show that the main food of Drupa and Drupella is Acropora. Drupa and Drupella has the characteristics of small individual, long breeding cycle and clustering, and its outbreak seriously damages the coral reef ecosystem. There are signs of Drupa and Drupella outbreak in South China Sea and Hong Kong. The main reasons include hurricane transit, global warming and the reduction of natural enemies. Measures such as natural enemies, artificial cleaning, tracking monitoring and early warning can be used to control Drupa and Drupella.
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