Articles | Volume 21, issue 7
https://doi.org/10.5194/bg-21-1729-2024
https://doi.org/10.5194/bg-21-1729-2024
Research article
 | 
09 Apr 2024
Research article |  | 09 Apr 2024

Contrasting carbon cycling in the benthic food webs between a river-fed, high-energy canyon and an upper continental slope

Chueh-Chen Tung, Yu-Shih Lin, Jian-Xiang Liao, Tzu-Hsuan Tu, James T. Liu, Li-Hung Lin, Pei-Ling Wang, and Chih-Lin Wei

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This study contrasts seabed food webs between a river-fed, high-energy canyon and the nearby slope. We show higher organic carbon (OC) flows through the canyon than the slope. Bacteria dominated the canyon, while seabed fauna contributed more to the slope food web. Due to frequent perturbation, the canyon had a lower faunal stock and OC recycling. Only 4 % of the seabed OC flux enters the canyon food web, suggesting a significant role of the river-fed canyon in transporting OC to the deep sea.
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