• 中文核心期刊
  • 中国科技核心期刊
  • CSCD
  • ISSN 1007-6336
  • CN 21-1168/X
LIU Yu, WANG Hai-xia, LI Xiao-lin, LI Ying. Variation of carbon and nitrogen stable isotope composition of Alexandrium tamareme in the process of red tide[J]. Chinese Journal of MARINE ENVIRONMENTAL SCIENCE, 2015, 34(5): 783-787. DOI: 10.13634/j.cnki.mes.2015.05.024
Citation: LIU Yu, WANG Hai-xia, LI Xiao-lin, LI Ying. Variation of carbon and nitrogen stable isotope composition of Alexandrium tamareme in the process of red tide[J]. Chinese Journal of MARINE ENVIRONMENTAL SCIENCE, 2015, 34(5): 783-787. DOI: 10.13634/j.cnki.mes.2015.05.024

Variation of carbon and nitrogen stable isotope composition of Alexandrium tamareme in the process of red tide

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  • Received Date: September 27, 2014
  • Revised Date: January 10, 2015
  • In order to explore a new method for the red tide monitoring, this study selected one of the typical red tide algae, Alexandrium tamareme, as experimental material.We simulated a complete algal bloom process and examined the important monitoring index (biomass, nutrient concentration), find out the rule of the correlation with stable isotope characteristic value.The results show that algae growth process can be obviously divided into four stages:the adaptation period, the logarithmic growth phase, stable growth phase and decline phase;N, P nutrient concentration decreased with the incubation time, there is a good correlation with the change of biomass in the growth process, but almost no absorption of silicate.In a complete algal bloom process, the stable carbon isotope composition (13C) shows decrease tendency, while the stable nitrogen isotope composition (15N) reveals increase tendency.Therefore, the stable isotope composition can provide new indexes and possible new methods for the red tide monitoring.
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