How much do zooplankton and fine-scale processes matter for the ocean biological pump?
動物プランクトンと微細スケール過程は海洋生物ポンプにどの程度寄与するか？ (AI 翻訳)
M. Poupon, L. Resplandy, Jessica Y. Luo
🤖 gxceed AI 要約
日本語
本論文は、海洋生物炭素ポンプにおける微細スケールの物理過程と動物プランクトンの日周鉛直移動の重要性を、高解像度の北大西洋モデルを用いて定量化した。従来見落とされがちな非粒子状炭素フラックス（溶存有機炭素輸送、動物プランクトン呼吸）が炭素貯蔵の15-20%を占めることを示した。
English
This paper uses a high-resolution North Atlantic model to quantify the contribution of fine-scale physical processes and zooplankton daily vertical migration to the ocean biological carbon pump. It finds that these processes and their associated non-particulate fluxes contribute 15-20% of carbon storage, which is often overlooked in traditional assessments.
Unofficial AI-generated summary based on the public title and abstract. Not an official translation.
📝 gxceed 編集解説 — Why this matters
日本のGX文脈において
日本は海洋研究と水産国として海洋炭素循環への関心が高い。本論文は、微細スケール過程を含めた次世代観測・モデリングの重要性を示しており、日本の海洋GX研究にも示唆を与える。
In the global GX context
This paper highlights the need for next-generation observations and models to capture fine-scale and migrant-driven carbon fluxes. For global GX, it underscores that natural carbon sinks are more complex than often assumed, affecting carbon budget assessments and climate model accuracy.
👥 読者別の含意
🔬研究者:Climate modelers should consider fine-scale processes and non-particulate fluxes to improve carbon cycle representations.
🏛政策担当者:Policymakers should note that ocean carbon storage estimates may be underestimated if fine-scale and biological migration effects are omitted, affecting benchmarks for net-zero pathways.
📄 Abstract（原文）
The ocean biological carbon pump stores carbon away from the atmosphere through multiple pathways, including gravitational settling, physical transport, and organism vertical migration. Robust assessments of its magnitude remain challenging. Traditional approaches often quantify pathways separately, risking double-counting, missing high-frequency processes such as fine-scale physics and daily vertical migration over large scales, and emphasizing particulate carbon while overlooking non-particulate fluxes. Here, we apply a unified framework that quantifies all pathways simultaneously in a high-resolution (3 km) idealized North Atlantic model resolving seasonal biophysical dynamics, including zooplankton migration, from kilometer-scale fronts to regional biomes. We show that fine-scale physical and migrant pumps together contribute 15-20% of carbon storage. Their storage is dominated by non-particulate carbon fluxes (dissolved organic carbon transport, zooplankton respiration). Fine-scale dynamics modulate export depth and storage timescales both directly, through physical transport, and indirectly, by shaping fast-sinking carbon-rich filaments and controlling zooplankton migration depth. Adequately measuring and representing these pathways in next-generation observations and models is key to quantify carbon storage and its response to variability. A high-resolution North Atlantic model shows that fine-scale ocean processes and zooplankton daily migration account for 15-20% of ocean biological carbon storage, mostly through overlooked non-particulate fluxes often missed in existing assessments.
🔗 Provenance — このレコードを発見したソース
- semanticscholar https://doi.org/10.1038/s41467-026-72144-xfirst seen 2026-07-03 05:58:18
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