Mchich R. auteur aut IRD Brochier Timothée auteur aut IRD Auger Pierre auteur aut IRD Brehmer Patrice auteur aut IRD text journalArticle eng text/pdf born digital access This work presents a mathematical model describing the interactions between the cross-shore structure of small pelagic fish population an their exploitation by coastal and offshore fisheries. The complete model is a system of seven ODE's governing three stocks of small pelagic fish population moving and growing between three zones. Two types of fishing fleets are inter-acting with the fish population, industrial boats, constrained to offshore area, and artisanal boats, operating from the shore. Two time scales were considered and we use aggregation methods that allow us to reduce the dimension of the model and to obtain an aggregated model, which is a four dimension one. The analysis of the aggregated model is performed. We discuss the possible equilibriums and their meaning in terms of fishery management. An interesting equilibrium state can be obtained for which we can expect coexistence and a stable equilibrium state between fish stocks and fishing efforts. Some identification parameters are also given in the discussion part of the model. specialized Fishery model Industrial and artisanal fisheries Aggregation of variables Parameters identification measures National policy management 040 020 64 4 479-493 2016 0001-5342 https://www.documentation.ird.fr/hor/fdi:010068753 10.1007/s10441-016-9299-7 0001-5342 [F B010068753] https://www.documentation.ird.fr/hor/fdi:010068753 https://www.documentation.ird.fr/intranet/publi/2017/01/010068753.pdf Accès réservé (Intranet de l'IRD) IRD - Base Horizon / Pleins textes 2017-02-06 2024-01-05 fdi:010068753 fre