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应用生态学报 ›› 1996, Vol. 7 ›› Issue (s1): 88-92.

• 研究论文 • 上一篇    下一篇

海水中Cu、Zn离子对牟氏角毛藻生长的生态效应

曲克明, 袁有宪   

  1. 中国水产科学研究院黄海水产研究所, 青岛266071
  • 收稿日期:1995-03-20 修回日期:1995-06-23 出版日期:1996-12-25 发布日期:1996-12-25
  • 基金资助:

    山东省自然科学基金资助项目

Ecologic effect of Cu and Zn in seawater on Chaetoceros mulleri growth

Qu Keming, Yuan Youxian   

  1. Yellow Sea Fisheries Research institute, Chinese Academy of Fisheries Sciences, Qingdao 266071
  • Received:1995-03-20 Revised:1995-06-23 Online:1996-12-25 Published:1996-12-25

摘要: 研究了Cu、Zn离子对车氏角毛藻生长的生态效应.结果表明,Cu离子活度低于10-7.80mol·L-1时,角毛藻生长繁殖良好,其中以10-13.57~10-10.53mol·L-1为最好;Cu离子活度≥10-7.80mol·L-1时产生毒性.低的Zn离子活度未表现出对牟氏角毛藻的必需性,Zn离子活度>10-7.00mol·L-1时产生毒性.低Zn离子活度未表现出对车氏角毛藻的必需性,Zn离子活度>10-7.00mol·L-1时不利于生长繁殖.与Zn离子相比,牟氏角毛藻对Cu离子的毒性更为敏感.

关键词: 单胞藻, Cu, Zn, 离子活度, 坡面侵蚀, 水动力特征, 河岸带, 径流冲刷, 交互作用

Abstract: Studies on the ecologic effect of Cu and Zn on the growth of Chaetoceros mulleri show that when the ionic activities of Cu and Zn are less than 0~10-7.80 and 0~10-7.00 mol·L-1respectively,the growth of C.mulleri is normal. Its optium requirement to the ionic activity of Cu is 10-13.57~10-10.53mol·L-1, but for Zn,it is not essential at lower ionic activity. When the ionic activities if Cu and Zn are higher than 10-7.80 and 10-7.00 mol·L-1 respectively,they will have a harmful effect to C.mulleri. Cu has a higher toxicity than Zn.

Key words: Chaetoceros mulleri, Copper, Zinc, Ionic activity, runoff scouring, riparian zone, slope erosion, hydrodynamic characteristics, interaction