Articles | Volume 23, issue 5
https://doi.org/10.5194/bg-23-2003-2026
© Author(s) 2026. 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-23-2003-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
17 Mar 2026
Research article |
| 17 Mar 2026
| 17 Mar 2026
Alternative dynamic regimes of marine biogeochemical models in perturbed environments
National Institute of Oceanography and Applied Geophysics - OGS, via Beirut 2, Trieste, 34014, Italy
NBFC, National Biodiversity Future Center, Palermo, 90133, Italy
MARBEC, Univ Montpellier, CNRS, Ifremer, IRD, Sète, France
Davide Valenti
Dipartimento di Fisica e Chimica “Emilio Segrè”, Università degli Studi di Palermo, Viale delle Scienze, Ed. 18, Palermo, 90128, Italy
Paolo Lazzari
National Institute of Oceanography and Applied Geophysics - OGS, via Beirut 2, Trieste, 34014, Italy
NBFC, National Biodiversity Future Center, Palermo, 90133, Italy
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Short summary
Due to climate change shifts in ecosystem structure and function have been increasingly documented in marine ecosystems around the globe. We tested whether a marine biogeochemical model can predict shifts to alternative regimes in plankton and biogeochemical processes under environmental perturbations. Simulations show that perturbations can drive the system into new regimes, with responses that are either reversible or hysteretic, depending on the type and intensity of the disturbance.
Due to climate change shifts in ecosystem structure and function have been increasingly...
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