关键词: 福建定海, 东海原甲藻, 夜光藻, 双相赤潮, Dinghai Fujian, Prorocentrum donghaiense, Noetiluea scintillans, bilateral red tid

Abstract: This paper analyzed and discussed the process of a bilateral red tide of Prorocentrum donghaiense and Noetiluea scintillans, which occurred in Dinghai Sea Zone of Fujian Province during June 7 and June 13 in 2010, based on tracking and monitoring of it. The ranges of the surface water temperature and salinity during the bloom were 22.8~23.2℃ and 28.24～28.36, respectively. The monitoring result shows that Noctiluca scintillans abounding in the surface water poses no pressure on rapid increase of Prorocentrum donghaiense population in the respect of feeding, and the content of PO43-P and NH4+-N in the surface water where Noctiluca scintillans abounds was significantly higher than normal sea areas. In addition, the population of Prorocentrum donghaiense in near shore waters could still grow rapidly after the red tide outbreak.