Approche globale de l'evaluation des ressources de la crevrette (Parapenaeus longirostris) de la region septentrionale de la Tunisie

Abstract

Production and fishing effort data have been collected at services of the Tunisian Fisheries and Aquaculture General Direction DGPA. These data concern eleven years (1987-1997). The selected effort unit is the fishing days and gauge tonnage (FD*GT), which combine fishing days and stored capacity of boat. The application of production models (Fox and Shaefer) to these data shows that stocks of deep-water pink-shrimps P. longirostris currently exploited are close to their optimum exploitation. Thus, a light increase of effort should be envisaged but the development of the fishing stocks of this species must be passing by the exploration of new fishing zones.