Articles | Volume 21, issue 8
https://doi.org/10.5194/bg-21-2029-2024
© Author(s) 2024. 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-21-2029-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
25 Apr 2024
Research article |
| 25 Apr 2024
| 25 Apr 2024
Picoplanktonic methane production in eutrophic surface waters
Sandy E. Tenorio
Departamento de Oceanografía, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Concepción, 4070043, Chile
Centro de Ciencia del Clima y la Resiliencia (CR2), Santiago, Chile
Programa de Graduados en Oceanografía, Departamento de Oceanografía, Universidad de Concepción, Concepción, 4070043, Chile
Laura Farías
CORRESPONDING AUTHOR
Departamento de Oceanografía, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Concepción, 4070043, Chile
Centro de Ciencia del Clima y la Resiliencia (CR2), Santiago, Chile
Instituto Milenio en Socio-ecología Costera (SECOS), Santiago, Chile
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Reynier Bada-Diaz, Martín Jacques-Coper, Laura Farías, Diego Narváez, and Italo Masotti
EGUsphere, https://doi.org/10.5194/egusphere-2023-2272, https://doi.org/10.5194/egusphere-2023-2272, 2023
Preprint archived
Short summary
Short summary
In this research we perform an analysis of the phenomena that induce favourable conditions for the occurrence of algal bloom events in a fjord in Chilean Patagonia. We propose an atmospheric-oceanographic mechanism: the passage of a low-pressure system modifies conditions in the water column and establishes optimal conditions for the occurrence of an extreme bloom event. Establishing such an atmosphere-ocean mechanism is important, given the predictive capabilities of these atmospheric systems.
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Short summary
Time series studies show that CH4 is highly dynamic on the coastal ocean surface and planktonic communities are linked to CH4 accumulation, as found in coastal upwelling off Chile. We have identified the crucial role of picoplankton (> 3 µm) in CH4 recycling, especially with the addition of methylated substrates (trimethylamine and methylphosphonic acid) during upwelling and non-upwelling periods. These insights improve understanding of surface ocean CH4 recycling, aiding CH4 emission estimates.
Time series studies show that CH4 is highly dynamic on the coastal ocean surface and planktonic...
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