An ecophysiological experiment was conducted to examine the biochemical effects of acidified seawater containing elevated concentration of CO2 (CCO2 0.08, 0.20, 0.50 and 1.00%) on the copepod Centropages tenuiremis. AchE, ATPase, SOD, GPx, GST, GSH level and GSH/GSSG ratio of the copepod were analyzed. The results showed that elevated CCO2 and the duration of culture time significantly influenced several biochemical indices in C. tenuiremis (ATPase, GPx, GST, GSH and SOD). Furthermore, the principal component analysis results indicated that 72.32% of the overall variance was explained by the first three principal components (GPx, SOD and GSH). Changes in GPx and GSH levels may play a significant role in the antioxidant defense of copepods against seawater acidification. The long-term response of copepods to seawater acidification and the synergistic effects of acidification with other environmental factors, such as temperature, salinity and trace metal need further investigation.
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Research Article|
January 01 2012
Biochemical responses of the copepod Centropages tenuiremis to CO2-driven acidified seawater Available to Purchase
Dajuan Zhang;
Dajuan Zhang
1College of Oceanography and Environmental Science, Xiamen University, Xiamen 361005, China
2Department of Fisheries, Tianjin Agricultural University, Tianjin 300384, China
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Shaojing Li;
1College of Oceanography and Environmental Science, Xiamen University, Xiamen 361005, China
3State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen 361005, China
E-mail: [email protected]
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Guizhong Wang;
Guizhong Wang
1College of Oceanography and Environmental Science, Xiamen University, Xiamen 361005, China
3State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen 361005, China
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Donghui Guo;
Donghui Guo
1College of Oceanography and Environmental Science, Xiamen University, Xiamen 361005, China
3State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen 361005, China
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Kezhi Xing;
Kezhi Xing
1College of Oceanography and Environmental Science, Xiamen University, Xiamen 361005, China
2Department of Fisheries, Tianjin Agricultural University, Tianjin 300384, China
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Shulin Zhang
Shulin Zhang
1College of Oceanography and Environmental Science, Xiamen University, Xiamen 361005, China
2Department of Fisheries, Tianjin Agricultural University, Tianjin 300384, China
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Water Sci Technol (2012) 65 (1): 30–37.
Article history
Received:
March 30 2011
Accepted:
August 15 2011
Citation
Dajuan Zhang, Shaojing Li, Guizhong Wang, Donghui Guo, Kezhi Xing, Shulin Zhang; Biochemical responses of the copepod Centropages tenuiremis to CO2-driven acidified seawater. Water Sci Technol 1 January 2012; 65 (1): 30–37. doi: https://doi.org/10.2166/wst.2011.821
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