Ocean Science
Ocean Science
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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

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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.
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