Biogeosciences
Biogeosciences
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Articles | Volume 22, issue 20
Articles | Volume 22, issue 20
https://doi.org/10.5194/bg-22-5921-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-22-5921-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 22, issue 20
Research article
 | 
22 Oct 2025
Research article |  | 22 Oct 2025

Distribution and sources of organic matter in submarine canyons incising the Gulf of Palermo, Sicily: A multi-parameter investigation

Sarah Paradis, Hannah Gies, Davide Moccia, Julie Lattaud, Lisa Bröder, Negar Haghipour, Antonio Pusceddu, Albert Palanques, Pere Puig, Claudio Lo Iacono, and Timothy I. Eglinton

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Short summary
The Gulf of Palermo features several submarine canyons, where 50–70 % of the organic carbon deposited in them is terrigenous (OC-terr). The contribution of OC-terr generally decreases offshore and across canyons. Rivers deliver OC-terr, which is redistributed by regional currents and intercepted by the farthest down-current canyon, while the other submarine canyons receive terrigenous organic carbon from more distal sources. Bottom trawling also contributes to the transfer of OC-terr down-canyon.
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