塔玛亚历山大藻和东海原甲藻对褶皱臂尾轮虫种群数量的影响

应用生态学报 ›› 2003, Vol. ›› Issue (7): 1151-1155.

塔玛亚历山大藻和东海原甲藻对褶皱臂尾轮虫种群数量的影响

王丽平^1,2, 颜天¹, 谭志军¹, 周名江¹

1. 中国科学院海洋研究所生态与环境重点实验室, 青岛 266071;
2. 中国科学院研究生院, 北京 100039

收稿日期:2002-12-18 修回日期:2003-04-21 出版日期:2003-07-15
通讯作者: 王丽平,女,1974年生,在读博士,主要从事海洋生态毒理方面的研究.E-mail:wangliping@ms.qdio.ac.cn.
基金资助:
国家重点基础研究发展规划项目(2001CB409709);国家自然科学基金项目(20177023,49906007,39950001,40076030);中国科学院知识创新工程项目(KZCX2-206);院长基金;山东省科技攻关资助项目(012110115).

Effects of Alexandrium tamarense and Prorocentrum donghaiense on rotifer Brachionus plicatilis population

WANG Liping^1,2, YAN Tian¹, TAN Zhijun¹, ZHOU Mingjiang¹

1. Key Laboratory of Ecology and Environment, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China;
2. Graduate School, Chinese Academy of Sciences, Beijing 100039, China

Received:2002-12-18 Revised:2003-04-21 Online:2003-07-15

摘要/Abstract

摘要： 通过对2002年5月东海赤潮原因种-东海原甲藻和亚历山大藻的单一藻种和两种藻混合情况下对褶皱臂尾轮虫种群数量影响的实验研究,发现塔玛亚历山大藻(ATHK)对轮虫有致死作用,其48hLC₅₀为1300cell·ml^-1.藻的各组分毒性比较研究表明,只有藻液和藻细胞具有这种毒害作用,藻在早期生长阶段的毒害作用较强,毒性大小与藻细胞活性相关.东海原甲藻在高密度(4×10⁴、5×10⁴、10×10⁴cell·ml^-1)时对轮虫种群数量在第5d时开始有影响;东海原甲藻在低密度(1×10⁴、2×10⁴、3×10⁴cell·ml^-1)时,轮虫能够以其为食并进行生长繁殖.两种藻混合情况下,东海原甲藻能够减轻塔玛亚历山大藻对轮虫的毒害作用.实验结果表明,此次赤潮对东海的微型浮游动物种群能够产生一定的影响.

Abstract: The effects of Prorocentrum donghaiense and Alexandrium sp., causative species of harmful algal bloom of East China Sea in May 2002, on rotifer Brachionus plicatilis population were studied in the laboratory. The results showed that Alexandrium tamarense(ATHK) had a lethal effect on B.plicatilis and the 48hLC₅₀ was about 1300 cell穖l^-1. The toxin comparison of different fractions showed that the algal culture and re-suspended algal cells had the adverse effects, and the alga at earlier growth phases showed a stronger impact, indicating that the inhibitory effect was related with the activity of the living algal cells. P.donghaiense at high densities(4?10⁴,5?10⁴ and 10?10⁴ cell穖l^-1) had an adverse effect on B.plicatilis population, while at low densities(1?10⁴,2?10⁴ and 3?10⁴ cell穖l^-1), the alga could be used as food for rotifer population. When the two algae were mixed, the lethal effect of A.tamarense could be decreased by P.donghaiense.The results indicated that the above HAB event could affect the micro-zooplankton population in the occurrence area of East China Sea.

中图分类号:

Q948.8

王丽平, 颜天, 谭志军, 周名江. 塔玛亚历山大藻和东海原甲藻对褶皱臂尾轮虫种群数量的影响[J]. 应用生态学报, 2003, (7): 1151-1155.

WANG Liping, YAN Tian, TAN Zhijun, ZHOU Mingjiang. Effects of Alexandrium tamarense and Prorocentrum donghaiense on rotifer Brachionus plicatilis population[J]. Chinese Journal of Applied Ecology, 2003, (7): 1151-1155.

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