Articles | Volume 22, issue 22
https://doi.org/10.5194/bg-22-7441-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-22-7441-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
28 Nov 2025
Research article |
| 28 Nov 2025
| 28 Nov 2025
Sediment heterogeneity shapes spatial variability of resuspension-induced CO2 production
Institute of Marine Science, The University of Auckland, Auckland 1142, New Zealand
Simon Thrush
Institute of Marine Science, The University of Auckland, Auckland 1142, New Zealand
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Zhang, W., Porz, L., Yilmaz, R., Wallmann, K., Spiegel, T., Neumann, A., Holtappels, M., Kasten, S., Kuhlmann, J., Ziebarth, N., Taylor, B., Ho-Hagemann, H. T. M., Bockelmann, F. D., Daewel, U., Bernhardt, L., and Schrum, C.: Long-term carbon storage in shelf sea sediments reduced by intensive bottom trawling, Nat. Geosci., 17, 1268–1276, https://doi.org/10.1038/S41561-024-01581-4, 2024.
Short summary
We studied how sediment disturbance through bottom trawling or dredging can lead to CO2 release and impair the carbon storage function. By testing a wide range of sediment types across the Hauraki Gulf, we found that the spatial variability of resuspension-induced CO2 release is shaped by local environmental conditions. Our results support the inclusion of seafloor carbon protection in regional fisheries management to sustain the climate stabilizing function of the seafloor.
We studied how sediment disturbance through bottom trawling or dredging can lead to CO2 release...
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