Articles | Volume 19, issue 22
https://doi.org/10.5194/bg-19-5237-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-19-5237-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
18 Nov 2022
Research article |
| 18 Nov 2022
| 18 Nov 2022
The response of diazotrophs to nutrient amendment in the South China Sea and western North Pacific
Zuozhu Wen
State Key Laboratory of Marine Environmental Science, Xiamen
University, Xiamen, Fujian, PR China
Marine Biogeochemistry Division, GEOMAR Helmholtz Centre for Ocean
Research Kiel, Kiel, Germany
Thomas J. Browning
Marine Biogeochemistry Division, GEOMAR Helmholtz Centre for Ocean
Research Kiel, Kiel, Germany
Rongbo Dai
State Key Laboratory of Marine Environmental Science, Xiamen
University, Xiamen, Fujian, PR China
Wenwei Wu
State Key Laboratory of Marine Environmental Science, Xiamen
University, Xiamen, Fujian, PR China
Weiying Li
State Key Laboratory of Marine Environmental Science, Xiamen
University, Xiamen, Fujian, PR China
present address: Key Laboratory of Marine Ecosystem Dynamics, Second
Institute of Oceanography, Ministry of Natural Resources, Hangzhou,
Zhejiang, PR China
Xiaohua Hu
State Key Laboratory of Marine Environmental Science, Xiamen
University, Xiamen, Fujian, PR China
Wenfang Lin
State Key Laboratory of Marine Environmental Science, Xiamen
University, Xiamen, Fujian, PR China
Lifang Wang
State Key Laboratory of Marine Environmental Science, Xiamen
University, Xiamen, Fujian, PR China
State Key Laboratory of Marine Environmental Science, Xiamen
University, Xiamen, Fujian, PR China
Zhimian Cao
State Key Laboratory of Marine Environmental Science, Xiamen
University, Xiamen, Fujian, PR China
Haizheng Hong
CORRESPONDING AUTHOR
State Key Laboratory of Marine Environmental Science, Xiamen
University, Xiamen, Fujian, PR China
Dalin Shi
CORRESPONDING AUTHOR
State Key Laboratory of Marine Environmental Science, Xiamen
University, Xiamen, Fujian, PR China
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Short summary
Fe and P are key factors controlling the biogeography and activity of marine N2-fixing microorganisms. We found lower abundance and activity of N2 fixers in the northern South China Sea than around the western boundary of the North Pacific, and N2 fixation rates switched from Fe–P co-limitation to P limitation. We hypothesize the Fe supply rates and Fe utilization strategies of each N2 fixer are important in regulating spatial variability in community structure across the study area.
Fe and P are key factors controlling the biogeography and activity of marine N2-fixing...
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