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Banaru D., Diaz F., Verley Philippe, Campbell R., Navarro J., Yohia C., Oliveros-Ramos R., Mellon-Duval C., Shin Yunne-Jai. (2019). Implementation of an end-to-end model of the Gulf of Lions ecosystem (NW Mediterranean Sea) : I. Parameterization, calibration and evaluation. Ecological Modelling, 401, 1-19. ISSN 0304-3800

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Lien direct chez l'éditeur doi:10.1016/j.ecolmodel.2019.03.005

Titre
Implementation of an end-to-end model of the Gulf of Lions ecosystem (NW Mediterranean Sea) : I. Parameterization, calibration and evaluation
Année de publication2019
Type de documentArticle référencé dans le Web of Science WOS:000467667200001
AuteursBanaru D., Diaz F., Verley Philippe, Campbell R., Navarro J., Yohia C., Oliveros-Ramos R., Mellon-Duval C., Shin Yunne-Jai.
SourceEcological Modelling, 2019, 401, p. 1-19. ISSN 0304-3800
RésuméAn end-to-end model named OSMOSE-GoL has been built for the Gulf of Lions, the main French Mediterranean fishing area. This spatialized dynamic model links the coupled hydrodynamic and biogeochemical model Eco3-MS/SYMPHONIE (LTL - low trophic level model) to OSMOSE (HTL - high trophic level model). It includes 15 compartments of living organisms, five from the LTL model (ie. nanophytoplankton, microphytoplankton, nanozooplankton, microzooplankton and mesozooplankton) and ten from the HTL model (northern krill, southern shortfin squid, European pilchard, European anchovy, European sprat, Atlantic horse mackerel, Atlantic mackerel, blue whiting, European hake and Atlantic bluefin tuna). With the exception of northern krill and European sprat, all HTL species are commercially exploited and undergo fisheries mortality pressure. The modeled species represent more than 70% of annual catches in this area. This paper presents the parameterization, calibration and evaluation of this model with satellite data for phytoplankton and with biomass, landings, diet and trophic level data for HTL groups. For most species, the diets in output of OSMOSE-GoL are similar to field and literature data in terms of dominant prey groups and species. However, some differences were observed. Various reasons may explain the mismatch between the modeled diet and field data. Benthic prey sometimes observed in the stomach content of the HTL predators were not modeled in OSMOSE-GoL. Field studies were carried out at specific periods and locations, while our data concern the period 2001-2004 and the entire modeled domain. Inter- and intra-annual variations in spatial distribution and density of prey may also explain these differences. The model estimates trophic level values similar to those cited in the literature for all the HTL compartments. These values are also close to the trophic levels estimated by a previous Ecopath model for the same area and period. Even though some improvements are still possible, this model may already be of use to explore fishery or Marine Protected Areas scenarios for socio-ecosystem management issues.
Plan de classementEcologie, systèmes aquatiques [036] ; Ressources halieutiques [040] ; Sciences fondamentales / Techniques d'analyse et de recherche [020]
Descr. géo.MEDITERRANEE ; GOLFE DU LION
LocalisationFonds IRD [F B010075703]
Identifiant IRDfdi:010075703
Lien permanenthttp://www.documentation.ird.fr/hor/fdi:010075703

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