多环芳烃-蒽对米氏凯伦藻和青岛大扁藻种间关系的影响

• 作 者: 张焕新 王照华 张政 王仁君 唐学玺
• 机 构: 中国海洋大学海洋生命学院,中国海洋大学海洋环境学院,曲阜师范大学生命科学学院,
• 出 处: 海洋环境科学
• 发表日期: 2014年06期
• 关键词: marine microalgae PAHs population relationship

以青岛大扁藻(Platymonas helgolandica)和米氏凯伦藻(Karenia mikimotoi Hansen)为试验材料,在实验室生态条件下研究了多环芳烃蒽对不同初始数量比的两种海洋微藻种间关系的影响,以期为探讨海洋微藻间的相互作用对赤潮生消的影响研究提供实验依据。结果如下:(1)两株藻种群生长和繁殖受种群初始接种密度的影响。(2)共培养体系中米氏凯伦藻对青岛大扁藻表现为抑制作用,青岛大扁藻对米氏凯伦藻表现为促进作用。(3)蒽对两株藻皆表现为胁迫作用,米氏凯伦藻更为敏感,青岛大扁藻耐受力更强。蒽的胁迫改变了两株藻的种间竞争关系。

Platymonas helgolandica and Karenia mikimotoi Hansen were used as experimental materials to study the relationship between PAHs and different marine microalgae at different initial ratios under laboratory conditions. In order to provide an experimental basis for the study of the interaction between marine microalgae on the impact of red tide disinfection. The results are as follows: (1) The growth and reproduction of two strains of algae were affected by initial inoculation density. (2) In the co-culture system, Killer algae showed inhibitory effects on P. pallidum, and P. macrocopa was promoted by P. macrocopa. (3) Anthracene showed a stress effect on the two strains of algae, Kylinum milleiflora was more sensitive, and P. maculata was more tolerant. Anthracene stress changed the interspecific competition between two strains of algae.