Data/hora: 06/06/2024 17:25:01

Provedor de dados: | 5
País: | France
Título: | An end-to-end coupled model ROMS-N(2)P(2)Z(2)D(2)-OSMOSE of the southern Benguela foodweb: parameterisation, calibration and pattern-oriented validation
Autores: | Travers-trolet, Morgane; Shin, Yunne-jai; Field, J. G.
Data: | 2014
Ano: | 2014
Palavras-chave: | Individual-based model; Model validation; Pattern-oriented modelling; Trophic interactions; Two-way coupling.
Resumo: | In order to better understand ecosystem functioning under simultaneous pressures (e.g. both climate change and fishing pressures), integrated modelling approaches are advocated. We developed an end-to-end model of the southern Benguela ecosystem by coupling the high trophic level model OSMOSE with a biophysical model (ROMS-N(2)P(2)Z(2)D(2)). OSMOSE is a spatial, multispecies, individual-based model simulating the whole life cycle of fish with fish schools interacting through opportunistic and size-based predation. It is linked to the biogeochemical model through the predation process; plankton groups are food for fish and fish apply a predation mortality on plankton. Here we describe the two-way coupling between the models and follow a pattern-oriented modelling approach to validate the simulations. At the individual level, model outputs are consistent with observed diets for several species from small pelagic fish to top predatory fish, although biases emerge from underestimation of macrozooplankton and lack of vertical structure. At the population level, the seasonality of the size structure is similar between the model and data. At the community level, the modelled trophic structure is consistent with the knowledge available for this ecosystem. The structure of the foodweb is an emergent property of the model, showing trophic links between species, their strength and the strong connectivity observed. We also highlight the capacity of this model for tracking indicators at various hierarchical levels.
Tipo: | Text
Idioma: | Inglês

Identificador:

https://archimer.ifremer.fr/doc/00193/30457/83335.pdf

DOI:10.2989/1814232X.2014.883326

https://archimer.ifremer.fr/doc/00193/30457/

Editor: | Natl Inquiry Services Centre Pty Ltd
Relação: | info:eu-repo/grantAgreement/EC/FP7/212085/EU//MEECE
Formato: | application/pdf
Fonte: | African Journal Of Marine Science (1814-232X) (Natl Inquiry Services Centre Pty Ltd), 2014 , Vol. 36 , N. 1 , P. 11-29

Fonte:

NISC (Pty) Ltd

info:eu-repo/semantics/openAccess

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