Seasonal variation of domoic acid in a bivalve Spondylus versicolor in association with that in plankton samples in Nha Phu Bay, Khanh Hoa, Vietnam
Seasonal variation of domoic acid in a bivalve Spondylus versicolor in association with that in plankton samples in Nha Phu Bay, Khanh Hoa, Vietnam
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DOI：
10.1007/s12562-009-0057-5
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发表时间：
2009-04-01
影响因子：
1.9
通讯作者：
Kodama, Masaaki
中科院分区：
文献类型：
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作者：
Dao, Ha Viet;Takata, Yoshinobu;Kodama, Masaaki
以前，我们报告了一个显着的软骨藻酸，一种致病毒素健忘性贝类中毒，被检测到在双壳类属于属脊椎动物从亚洲热带国家。这些结果表明，软骨藻酸的病原浮游生物种类广泛分布在这些地区。在本研究中，我们监测了2004年12月至2005年10月在越南庆和的芽府湾的浮游生物样品中的海绵状软骨藻酸水平的季节性变化。对S.变色龙表现出明显的季节性变化。在S.结果表明，在浮游生物样品中，软骨藻酸的含量显著增加，表明这两个参数之间存在相关性。这些结果表明，该湾存在软骨藻酸的病原浮游生物;在有毒浮游生物通过食物网转移大量繁殖期间，变色龙积累软骨藻酸。
Previously we reported that a significant level of domoic acid, a causative toxin for amnesic shellfish poisoning, was detected in bivalves belonging to a genus Spondylus from various tropical Asian countries. These findings indicate that causative plankton species for domoic acid widely distribute in these areas. In the present study, we monitored seasonal change of domoic acid level of Spondylus versicolor in association with that of plankton samples in Nha Phu Bay, Khanh Hoa, Vietnam from December 2004 to October 2005. The toxicity of S. versicolor showed distinct seasonal variation. During the period when domoic acid level of S. versicolor was increasing, a significant level of domoic acid was detected in the plankton samples, showing the correlation between these two parameters. These findings show that plankton causative for domoic acid occurred in the bay, and S. versicolor accumulate domoic acid during a bloom of the toxic plankton by food web transfer.