The toxicity study of Alexandrium tamarense and Heterosigma akashiwo to two crustacean species Neomysis awatschensis and Artemia salina

YAN Tian; TAN Zhi-jun; LI Jun; YU Ren-cheng; WANG Yun-feng; ZHOU Ming-jiang

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Article Navigation > Haiyang Xuebao > 2004 > 26(1): 76-81

YAN Tian, TAN Zhi-jun, LI Jun, YU Ren-cheng, WANG Yun-feng, ZHOU Ming-jiang. The toxicity study of Alexandrium tamarense and Heterosigma akashiwo to two crustacean species Neomysis awatschensis and Artemia salina[J]. Haiyang Xuebao, 2004, 26(1): 76-81.

Citation:

YAN Tian, TAN Zhi-jun, LI Jun, YU Ren-cheng, WANG Yun-feng, ZHOU Ming-jiang. The toxicity study of Alexandrium tamarense and Heterosigma akashiwo to two crustacean species Neomysis awatschensis and Artemia salina[J]. Haiyang Xuebao, 2004, 26(1): 76-81.

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The toxicity study of Alexandrium tamarense and Heterosigma akashiwo to two crustacean species Neomysis awatschensis and Artemia salina

Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China

Received Date: 2001-02-13
Rev Recd Date: 2001-12-29

Abstract

Abstract

The toxicities of two typical HA Bspecies Alex andrium tamarense and Heterosigma akashiwo were studied by two standard experimental organisms:Neomysis awatschensis and Artemia salina as test organisms.The results show that both A.tamarense and H.akashiwo affected the survival of N.awatschensis during 96 h exposure.The 96 h LC₅₀ of A.tamarense and H.akashiwo on N.awatschensis are about 7 000 cells/cm³ and 450 000 cells/cm³,respectively.While A.tamarense and H.akashiwo do not show any impact on the survival of Artemia salina during 24 h exposure.However,H.akashiwo can inhibit the activity of the Artemia salina significantly.The 96 h EC₅₀ at 0,1,1.5,5 and 24 h are 15 000,7 500,4 500,3 000 cells/cm³,respectively. But at the low densities of 3 000 cells/cm³,the activity of the Artemia salina can recover to the normal degree after 48 h.The results indicate the two HAB species have different toxicities to the same or ganism and the two crustaceans can have different responses to the same species.
- toxicity,
- Alexandrium tamarense,
- Heterosigma akashiwo,
- Neomysis awatschensis,
- Artemia salina

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References(17)

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