【摘 要】
：
于2000-2001年采集了中国沿海10个采样点的表层沉积物样品,研究了有毒亚历山大藻(Alexandrium spp.)和链状裸甲藻(Gymnodinium catenatum)孢囊的分布.结果表明,这两类孢囊几
【机 构】
：
暨南大学生命科学技术学院水生生物研究所,长崎大学水产学部沿岸环境研究室
论文部分内容阅读
于2000-2001年采集了中国沿海10个采样点的表层沉积物样品,研究了有毒亚历山大藻(Alexandrium spp.)和链状裸甲藻(Gymnodinium catenatum)孢囊的分布.结果表明,这两类孢囊几乎在所有采样点都检测到.链状裸甲藻孢囊虽分布广泛,但含量较低,在样品中的浓度和百分比含量分别为0-71.1cysts/g DW和0%-14.3%.亚历山大藻孢囊在大部分海域含量较低,而在PSP毒素中毒事件高发区和贝类PSP毒素高含量区的大亚湾大鹏澳海域却高密度、高频率地出现,最高密度为366cysts/g DW.研究结果显示,大亚湾大鹏澳海域表层沉积物中高密度的亚历山大藻孢囊也许是该海域贝类体内冬季PSP毒素积累及高含量的重要原因之一.
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