Charouki N. auteur aut IRD Raissi N. auteur aut IRD Auger Pierre auteur aut IRD McHich R. auteur aut IRD Atmani L. auteur aut IRD text journalArticle eng text/pdf born digital access This work is proposing a dynamic model governing the evolution with respect to time of the sardine (Sardina pilchardus) stock in the Atlantic coast between Cantin Cape and Blanc Cape in the North West Africa, which is harvested by two different fishing fleets. We assume that the sardine stock is distributed on two closed zones and targeted by a composite fleet: The Moroccan purse seiners which can move between the fishing regions and a fleet of deepsea trawlers composed mainly of foreign vessels and operating in the southern zone. The model is a set of 5 Ordinary Differential Equations (ODE) with two components: a stock component which describes the sardine evolutions in its 2 zones of distribution, and a component governing the dynamics of the fishing efforts. By using some aggregation methods, we reduce the system to a set of 4 ODE, and then we study analytically the existence and the asymptotic stability of the equilibrium points. The parameters of the stock dynamics and harvest are then estimated using models fitting techniques based on a set of available data. The conditions leading to sustainable fisheries are then simulated. Interpretations of our results can be used by the authority responsible of fishery management, as general recommendations for a better management of Moroccan fisheries. specialized Fishery model Sardina pilchardus Atlantic coast Aggregation of variables Equilibrium points Stability Parameters estimation Fisheries management 040 020 222 6 1253-1261 2011 0304-3800 https://www.documentation.ird.fr/hor/fdi:010053427 10.1016/j.ecolmodel.2010.12.022 0304-3800 [F B010053427] https://www.documentation.ird.fr/hor/fdi:010053427 https://www.documentation.ird.fr/intranet/publi/2011/04/010053427.pdf Accès réservé (Intranet de l'IRD) IRD - Base Horizon / Pleins textes 2011-05-02 2017-08-23 fdi:010053427 fre