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中肋骨条藻是一种在中国东部沿海广泛存在的广温广盐性的浮游硅藻,根据对近年来我国长江口和其他海域所发生赤潮的观测,有相当一部分是以中肋骨条藻为主(王金辉,2002;刘玉等,2002),其严重的破坏了海洋生态环境并造成了重大的国民经济损失,因此,对诱发中骨条藻爆发赤潮各种因子的研究便具有了重要的现实意义。本文应用营养盐加富的实验方法,在室内进行了中肋骨条藻的培养试验,研究了不同磷酸盐浓度条件下中肋骨条藻的生长情况,并对藻细胞内氮磷比的变化情况进行了探讨,以求对揭示中肋骨条藻赤潮的产生机制有所裨益。
Skeletonema costatum is a kind of broad-spectrum, broad-salt and broad-salt phytoplankton diatom that spreads extensively along the eastern coast of China. According to the observation of red tides occurring in the Yangtze Estuary and other areas in recent years, (Wang Jinhui, 2002; Liu et al., 2002), which seriously damaged the marine ecological environment and caused significant national economic losses. Therefore, it is of great importance to study the various factors that trigger the outbreak of red tide in Skeletophyte Realistic meaning. In this paper, the experimental method of nutrient enrichment was used to test the growth of Skeletonema costatum in laboratory, the growth of Skeletonema costatum under different phosphate concentrations was studied, and the change of N / P ratio in algal cells In order to reveal the mechanism of the production of Riboflavinum red tide beneficial.