Sediment heterogeneity shapes spatial variability of resuspension-induced CO<sub>2</sub> production

Bartl, Ines; Thrush, Simon

doi:10.5194/bg-22-7441-2025

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.

https://doi.org/10.5194/bg-22-7441-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 22, issue 22

Research article

|

28 Nov 2025

Research article |

| 28 Nov 2025

Sediment heterogeneity shapes spatial variability of resuspension-induced CO₂ production

Ines Bartl and Simon Thrush

Supplement

https://doi.org/10.5194/bg-22-7441-2025-supplement

Data sets

Resuspension-induced CO2 production rates and sediment characteristics from the Hauraki Gulf, New Zealand Ines Bartl and Simon Thrush https://doi.org/10.17608/k6.auckland.27948264.v1

Model code and software

Sediment heterogeneity shapes spatial variability of resuspension-induced CO2 production - Boosted Regression Tree Model Ines Bartl and Simon Thrush https://doi.org/10.17608/k6.auckland.29442407.v1

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Short summary

We studied how sediment disturbance through bottom trawling or dredging can lead to CO₂release 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 CO₂release 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.