Preprints
https://doi.org/10.5194/egusphere-2023-1368
https://doi.org/10.5194/egusphere-2023-1368
22 Sep 2023
 | 22 Sep 2023

Parameterization and tuning of the Bay of Biscay Atlantis model v1

Ane Lopez de Gamiz-Zearra, Cecilie Hansen, Xavier Corrales, Iñaki Quincoces, Izaskun Preciado, and Eider Andonegi

Abstract. This paper describes the parameterization and calibration of an end-to-end Atlantis model for the Bay of Biscay, characterising spatially the structure and functioning of the ecosystem. The Bay of Biscay is considered rich in terms of ecological diversity and different oceanographic events such as coastal upwelling, coastal run-off and river plumes, and seasonal currents, take place in the area. These features, in addition to the different pressures caused by human activities and management criteria, demand for concurrent modelling of all the characteristics of the Bay of Biscay ecosystem in order to improve our understanding of the system and its functioning. The modelled area is 145 970 km2 and was divided into 36 spatial polygons, each with multiple vertical layers. The model was composed by 54 functional groups, ranging from primary producers to top predators. Our results highlighted the importance of lower trophic levels to the pelagic system and how the trophic interactions among phytoplankton and zooplankton groups impact the structure of the ecosystem. The results also demonstrate the importance of having accurate and precise data for biological processes and showed the need of further study in the age-specific data such as biomass and weight distribution per age and diet interactions between juvenile and adult fish stages. Overall, the Bay of Biscay Atlantis model has been shown to be a tool that has the potential to improve our understanding of the spatial functioning of the Bay of Biscay ecosystem that will help establishing management measures of human activities.

Publisher's note: Copernicus Publications remains neutral with regard to jurisdictional claims made in the text, published maps, institutional affiliations, or any other geographical representation in this preprint. The responsibility to include appropriate place names lies with the authors.
Ane Lopez de Gamiz-Zearra, Cecilie Hansen, Xavier Corrales, Iñaki Quincoces, Izaskun Preciado, and Eider Andonegi

Status: final response (author comments only)

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • CEC1: 'Comment on egusphere-2023-1368', Juan Antonio Añel, 11 Oct 2023
    • AC1: 'Reply on CEC1', Ane Lopez de Gamiz Zearra, 01 Nov 2023
      • CEC2: 'Reply on AC1', Juan Antonio Añel, 01 Nov 2023
        • AC2: 'Reply on CEC2', Ane Lopez de Gamiz Zearra, 03 Nov 2023
      • CEC3: 'Reply on AC1', Juan Antonio Añel, 01 Nov 2023
  • RC1: 'Reply on CEC1', Vidette McGregor, 12 Dec 2023
  • RC2: 'Comment on egusphere-2023-1368', Anonymous Referee #2, 16 Jan 2024
  • EC1: 'Comment on egusphere-2023-1368', Heather Hyewon Kim, 24 Feb 2024
Ane Lopez de Gamiz-Zearra, Cecilie Hansen, Xavier Corrales, Iñaki Quincoces, Izaskun Preciado, and Eider Andonegi
Ane Lopez de Gamiz-Zearra, Cecilie Hansen, Xavier Corrales, Iñaki Quincoces, Izaskun Preciado, and Eider Andonegi

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Short summary
This paper describes the development of the first calibrated end-to-end Atlantis model for the Bay of Biscay that will help us improve the comprehension of the spatial functioning of the Bay of Biscay ecosystem and help establishing management measures of human activities. Our results highlighted the importance of lower trophic levels to the pelagic system and demonstrate the importance of having accurate and precise data for biological processes.