Ocean Science
Ocean Science
OS
Articles | Volume 21, issue 4
Articles | Volume 21, issue 4
https://doi.org/10.5194/os-21-1627-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/os-21-1627-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 21, issue 4
Research article
 | 
31 Jul 2025
Research article |  | 31 Jul 2025

Biogeochemical layering and transformation of particulate organic carbon in the Tropical Northwestern Pacific Ocean inferred from δ13C

Detong Tian, Xuegang Li, Jinming Song, Jun Ma, Huamao Yuan, and Liqin Duan

Related authors

A global monthly 3D field of seawater pH over 3 decades: a machine learning approach
Guorong Zhong, Xuegang Li, Jinming Song, Baoxiao Qu, Fan Wang, Yanjun Wang, Bin Zhang, Lijing Cheng, Jun Ma, Huamao Yuan, Liqin Duan, Ning Li, Qidong Wang, Jianwei Xing, and Jiajia Dai
Earth Syst. Sci. Data, 17, 719–740, https://doi.org/10.5194/essd-17-719-2025,https://doi.org/10.5194/essd-17-719-2025, 2025
Short summary
Influence of oceanic ventilation and terrestrial transport on the atmospheric volatile chlorinated hydrocarbons over the Western Pacific
Shan-Shan Liu, Jie Ni, Jin-Ming Song, Xu-Xu Gao, Zhen He, and Gui-Peng Yang
EGUsphere, https://doi.org/10.5194/egusphere-2025-251,https://doi.org/10.5194/egusphere-2025-251, 2025
Short summary
A global database of dissolved organic matter (DOM) concentration measurements in coastal waters (CoastDOM v1)
Christian Lønborg, Cátia Carreira, Gwenaël Abril, Susana Agustí, Valentina Amaral, Agneta Andersson, Javier Arístegui, Punyasloke Bhadury, Mariana B. Bif, Alberto V. Borges, Steven Bouillon, Maria Ll. Calleja, Luiz C. Cotovicz Jr., Stefano Cozzi, Maryló Doval, Carlos M. Duarte, Bradley Eyre, Cédric G. Fichot, E. Elena García-Martín, Alexandra Garzon-Garcia, Michele Giani, Rafael Gonçalves-Araujo, Renee Gruber, Dennis A. Hansell, Fuminori Hashihama, Ding He, Johnna M. Holding, William R. Hunter, J. Severino P. Ibánhez, Valeria Ibello, Shan Jiang, Guebuem Kim, Katja Klun, Piotr Kowalczuk, Atsushi Kubo, Choon-Weng Lee, Cláudia B. Lopes, Federica Maggioni, Paolo Magni, Celia Marrase, Patrick Martin, S. Leigh McCallister, Roisin McCallum, Patricia M. Medeiros, Xosé Anxelu G. Morán, Frank E. Muller-Karger, Allison Myers-Pigg, Marit Norli, Joanne M. Oakes, Helena Osterholz, Hyekyung Park, Maria Lund Paulsen, Judith A. Rosentreter, Jeff D. Ross, Digna Rueda-Roa, Chiara Santinelli, Yuan Shen, Eva Teira, Tinkara Tinta, Guenther Uher, Masahide Wakita, Nicholas Ward, Kenta Watanabe, Yu Xin, Youhei Yamashita, Liyang Yang, Jacob Yeo, Huamao Yuan, Qiang Zheng, and Xosé Antón Álvarez-Salgado
Earth Syst. Sci. Data, 16, 1107–1119, https://doi.org/10.5194/essd-16-1107-2024,https://doi.org/10.5194/essd-16-1107-2024, 2024
Short summary
Reconstruction of global surface ocean pCO2 using region-specific predictors based on a stepwise FFNN regression algorithm
Guorong Zhong, Xuegang Li, Jinming Song, Baoxiao Qu, Fan Wang, Yanjun Wang, Bin Zhang, Xiaoxia Sun, Wuchang Zhang, Zhenyan Wang, Jun Ma, Huamao Yuan, and Liqin Duan
Biogeosciences, 19, 845–859, https://doi.org/10.5194/bg-19-845-2022,https://doi.org/10.5194/bg-19-845-2022, 2022
Short summary

Related subject area

Approach: In situ Observations | Properties and processes: Biogeochemistry and nutrient cycles
Ventilation of the Bay of Bengal oxygen minimum zone by the Southwest Monsoon Current
Peter M. F. Sheehan, Benjamin G. M. Webber, Alejandra Sanchez-Franks, and Bastien Y. Queste
Ocean Sci., 21, 1575–1588, https://doi.org/10.5194/os-21-1575-2025,https://doi.org/10.5194/os-21-1575-2025, 2025
Short summary
The Southern Ocean Time Series: a climatological view of hydrography, biogeochemistry, phytoplankton community composition, and carbon export in the Subantarctic Zone
Elizabeth H. Shadwick, Cathryn A. Wynn-Edwards, Ruth S. Eriksen, Peter Jansen, Xiang Yang, Gemma Woodward, and Diana Davies
Ocean Sci., 21, 1549–1573, https://doi.org/10.5194/os-21-1549-2025,https://doi.org/10.5194/os-21-1549-2025, 2025
Short summary
Drivers of the spatiotemporal distribution of dissolved nitrous oxide and air–sea exchange in a coastal Mediterranean area
Susana Flecha, Mercedes de la Paz, Fiz Fernández Pérez, Núria Marbà, Carlos Morell, Eva Alou-Font, Joaquín Tintoré, and Iris E. Hendriks
Ocean Sci., 21, 1515–1532, https://doi.org/10.5194/os-21-1515-2025,https://doi.org/10.5194/os-21-1515-2025, 2025
Short summary
Critical uncoupling between biogeochemical stocks and rates in Ross Sea springtime production–export dynamics
Meredith G. Meyer, Esther Portela, Walker O. Smith Jr., and Karen J. Heywood
Ocean Sci., 21, 1223–1236, https://doi.org/10.5194/os-21-1223-2025,https://doi.org/10.5194/os-21-1223-2025, 2025
Short summary
Control of spatio-temporal variability of ocean nutrients in the East Australian Current
Megan Jeffers, Christopher C. Chapman, Bernadette M. Sloyan, and Helen Bostock
Ocean Sci., 21, 537–554, https://doi.org/10.5194/os-21-537-2025,https://doi.org/10.5194/os-21-537-2025, 2025
Short summary
More articles (2)

Cited articles

Brandt, P., Hahn, J., Schmidtko, S., Tuchen, F. P., Kopte, R., Kiko, R., Bourlès, B., Czeschel, R., and Dengler, M.: Atlantic Equatorial Undercurrent intensification counteracts warming-induced deoxygenation, Nat. Geosci., 14, 278–282, https://doi.org/10.1038/s41561-021-00716-1, 2021. 
Bryan, J. R., Rlley, J. P., and Williams, P. J. L.: A winkler procedure for making precise measurements of oxygen concentration for productivity and related studies, J. Exp. Mar. Biol. Ecol., 21, 191–197, https://doi.org/10.1016/0022-0981(76)90114-3, 1976. 
Buesseler, K. O., Boyd, P. W., Black, E. E., and Siegel, D. A.: Metrics that matter for assessing the ocean biological carbon pump, P. Natl. Acad. Sci. USA, 117, 9679–9687, https://doi.org/10.1073/pnas.1918114117, 2020. 
Calbet, A. and Landry, M. R.: Phytoplankton growth, microzooplankton grazing, and carbon cycling in marine systems, Limnol. Oceanogr., 49, 51–57, https://doi.org/10.4319/lo.2004.49.1.0051, 2004. 
Close, H. G. and Henderson, L. C.: Open-Ocean Minima in δ13C Values of Particulate Organic Carbon in the Lower Euphotic Zone, Front. Mar. Sci., 7, 540165, https://doi.org/10.3389/fmars.2020.540165, 2020. 
More articles (56)
Download
Short summary
Particulate organic carbon plays a vital role in the ocean's carbon cycle, yet its transformation involves complex processes that are not fully understood. This study examines the vertical distribution of stable carbon isotopes in the Tropical Northwestern Pacific, identifying three distinct biogeochemical layers of POC transformation, and contributes to a deeper understanding of the ocean's carbon cycle.
Read more
Share