| 影响北欧海和楚科奇海夏季细菌丰度和生产力的因素 |
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| 引用本文： | 高源,何剑锋,陈敏,林凌,张芳.影响北欧海和楚科奇海夏季细菌丰度和生产力的因素[J].海洋学报(英文版),2017,36(8):153-162. |
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| 作者姓名： | 高源 何剑锋 陈敏 林凌 张芳 |
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| 作者单位： | 海洋与地球学院, 厦门大学, 厦门 361005, 中国;国家海洋局极地科学重点实验室, 中国极地研究中心, 上海 200136, 中国,国家海洋局极地科学重点实验室, 中国极地研究中心, 上海 200136, 中国,海洋与地球学院, 厦门大学, 厦门 361005, 中国;近海海洋环境科学国家重点实验室, 厦门大学, 厦门 361005, 中国,国家海洋局极地科学重点实验室, 中国极地研究中心, 上海 200136, 中国,国家海洋局极地科学重点实验室, 中国极地研究中心, 上海 200136, 中国 |
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| 基金项目： | The National Natural Science Foundation of China under contract Nos 41476168 and 41206189; the Chinese Polar Environment Comprehensive Investigation and Assessment Programs under contract No. CHINARE-2011-2015; the Public Science and Technology Research Funds Projects of Ocean under contract No. 20110522. |
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| 摘 要： | Abundance and production of bacterioplankton were measured in the Nordic seas and Chukchi Sea during the5 th Chinese Arctic Research Expedition in summer 2012.The results showed that average bacterial abundances ranged from 3.31×10~(11) cells/m~3 to 2.25× 10~(11)cells/m~3,and average bacterial productions(calculated by carbon)were 0.46 mg/(m~3·d) and 0.54 mg/(m~3·d) in the Nordic seas and Chukchi Sea,respectively.T-test result showed that bacterial abundances were significantly different between the Nordic seas and Chukchi Sea,however,no significant difference was observed regarding bacterial productions.Based on the slope of lg bacterial biomass versus lg bacterial production,bacterial communities in the Nordic seas and Chukchi Sea were moderately dominated by bottom-up control.Both Pearson correlation analysis and multivariable linear regression indicated that temperature had significant positive correlation with bacterial abundance in the Chukchi Sea,while no correlations with productions in both areas.Meanwhile,Chl a had positive correlations with both bacterial abundance and production in these two regions.As the temperature and Chl a keep changing in the future,we suggest that both bacterial abundance and production been hanced in the Chukchi Sea but weaken in the Nordic seas,though the enhancement will not be dramatic as a result of higher pressure of predation and viral lysis.
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| 关 键 词： | 浮游细菌 丰度 生产力 北冰洋 环境因子 |
| 收稿时间： | 2016/10/19 0:00:00 |
Factors dominating bacterioplankton abundance and production in the Nordic seas and the Chukchi Sea in summer 2012 |
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| GAO Yuan,HE Jianfeng,CHEN Min,LIN Ling and ZHANG Fang.Factors dominating bacterioplankton abundance and production in the Nordic seas and the Chukchi Sea in summer 2012[J].Acta Oceanologica Sinica,2017,36(8):153-162. |
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| Authors: | GAO Yuan HE Jianfeng CHEN Min LIN Ling and ZHANG Fang |
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| Institution: | 1.College of Ocean and Earth Sciences, Xiamen University, Xiamen 361005, China;State Oceanic Administration Key Laboratory for Polar Science, Polar Research Institute of China, Shanghai 200136, China2.State Oceanic Administration Key Laboratory for Polar Science, Polar Research Institute of China, Shanghai 200136, China3.College of Ocean and Earth Sciences, Xiamen University, Xiamen 361005, China;State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen 361005, China |
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| Abstract: | Abundance and production of bacterioplankton were measured in the Nordic seas and Chukchi Sea during the 5th Chinese Arctic Research Expedition in summer 2012. The results showed that average bacterial abundances ranged from 3.31×1011 cells/m3 to 2.25×1011 cells/m3, and average bacterial productions (calculated by carbon) were 0.46 mg/(m3·d) and 0.54 mg/(m3·d) in the Nordic seas and Chukchi Sea, respectively. T-test result showed that bacterial abundances were significantly different between the Nordic seas and Chukchi Sea, however, no significant difference was observed regarding bacterial productions. Based on the slope of lg bacterial biomass versus lg bacterial production, bacterial communities in the Nordic seas and Chukchi Sea were moderately dominated by bottom-up control. Both Pearson correlation analysis and multivariable linear regression indicated that temperature had significant positive correlation with bacterial abundance in the Chukchi Sea, while no correlations with productions in both areas. Meanwhile, Chl a had positive correlations with both bacterial abundance and production in these two regions. As the temperature and Chl a keep changing in the future, we suggest that both bacterial abundance and production been hanced in the Chukchi Sea but weaken in the Nordic seas, though the enhancement will not be dramatic as a result of higher pressure of predation and viral lysis. |
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| Keywords: | bacterioplankton abundance production Arctic Ocean environmental factors |
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