台湾海峡悬浮颗粒中的甲藻指示物──甾醇(4α,23,24-trimethyl-5α-cholest-22-en-3β-ol)

• 作 者: 彭兴跃 徐立 张祖麟 洪华生
• 机 构: 厦门大学国家教委海洋生态环境开放实验室
• 出 处: 厦门大学学报(自然科学版)
• 发表日期: 1998年04期
• 关键词: 甲藻 悬浮颗粒 trimethyl-5 ol 昼夜垂直移动 生物标志物 表层海水 组分含量 季节变化 指示物

检出台湾海峡两个季节的表层水悬浮颗粒样品中的甾醇４α，２３，２４－ｔｒｉｍｅｔｈｙｌ－５α－ｃｈｏｌｅｓｔ－２２－ｅｎ－３α－ｏｌ，该组分被认为可用来指示甲藻．分析结果表明：表层海水悬浮颗粒中该组分含量出现两次最大值，其规律与甲藻的昼夜垂直移动规律相一致；该组分在台湾海峡夏季含量比冬季要高，但仍明显低于同期的厦门附近海域的含量，这种季节变化及海域差别与所报道的甲藻的情况基本一致．

The sterol 4α, 23,24-trimethyl-5α-cholest-22-en-3α-ol in the surface water suspended particle samples of the two seasons in the Taiwan Strait was detected and is considered to be indicative of dinoflagellate. The results show that the content of the component in the surface seawater suspended particles appears twice the maximum value, and its regularity is consistent with the diurnal vertical movement of dinoflagellate. The content of the component in summer in the Taiwan Strait is higher than in winter, In the same period, the content of the sea area near Xiamen, the seasonal variation and the difference between the sea areas are basically consistent with the reported dinoflagellates.