Biogeosciences
Biogeosciences
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Articles | Volume 23, issue 15
Articles | Volume 23, issue 15
https://doi.org/10.5194/bg-23-5419-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-23-5419-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 23, issue 15
Research article
 | 
06 Aug 2026
Research article |  | 06 Aug 2026

Diatom community assemblages and microbial degradation resistance modulate local heterogeneity in diatom contribution to carbon export in the western North Pacific Subtropical Gyre

Feng Li, Hongzhen Jiang, Linwei Liu, Zhouyi Jiang, Lu Huang, Kehui Feng, Zuozhu Wen, Xin Liu, Changping Chen, Kuanbo Zhou, and Junrong Liang

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Short summary
In nutrient‑poor open ocean, scarce diatoms still remove CO₂. In the western North Pacific Subtropical Gyre (NPSG), we found different diatoms live at different depths. Where a warm current (Kuroshio) flows, large diatoms carry more carbon to deep water; elsewhere their contribution is lower. Microbes lack genes to digest protective polymers made by diatoms, which may help carbon sink efficiently. To predict ocean climate role, we must know not only which algae are present but also how well their organic matter resists decay.
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