A multi-species multi-fleet bioeconomic simulation model for the English Channel artisanal fisheries

Considering the large number of technical interactions between various fishing activities, the English Channel (ICES divisions VIId and VIIe) fisheries may be regarded as one large and diverse multi-country, multi-gear and multi-species artisanal fishery, although rarely studied as such. Awhole-scale bioeconomic model has been constructed. It does not take into account biological interactions, but focuses on competition among fleets. A large amount of biological and economic data have been preliminarily gathered, leading to a substantial increase of the quantitative knowledge available. The main purpose of the model is to study the long-term consequences of various management alternatives on the economic situation of the English and French fleets fishing in the area and on exploited resources. The model describes this feature through the links between three entities on the one hand (stocks, fleets and ‘‘me«tiers’’, i.e. gear targetspecies fishing area), and three modules on the other hand (activity, biological production and economics). The model is described and some simulation results are presented. An example simulating a decrease of one fleet segment effort illustrates these technical interactions among fleets and underlines the interest of a large-scale approach for these fisheries. # 2002 Elsevier Science B.V. All rights reserved.

[1]  On Prices of Fresh and Frozen Cod Fish in European and U.S. Markets , 1996, Marine Resource Economics.

[2]  M. Pawson.  NUMBER 99 Biogeographical identification of English Channel fish and shellfish stocks , 2000 .

[3]  B. Gobert,et al.  Typologie de la flottille de pêche côtière dans le golfe de Gabès (Tunisie). , 2001 .

[4]  John Shepherd,et al.  A hybrid age- and length-structured model for assessing regulatory measures in multiple-species, multiple-fleet fisheries , 1990 .

[5]  William W. Fox,et al.  An Exponential Surplus-Yield Model for Optimizing Exploited Fish Populations , 1970 .

[6]  J. Horwood,et al.  Long-term targets for the Celtic Sea mixed-species multi-métiers fisheries , 1996 .

[7]  A. Mcintyre,et al.  Effects of Fishing on Non-target Species and Habitats , 2003 .

[8]  Alain Biseau,et al.  Definition of a directed fishing effort in a mixed-species trawl fishery, and its impact on stock assessments , 1998 .

[9]  W. Reed,et al.  A Bioeconomic Analysis of Sequential Fisheries: Competition, Coexistence, and Optimal Harvest Allocation Between Inshore and Offshore Fleets , 1985 .

[10]  Bioeconomic Multispecies Models of the Barents Sea Fisheries , 1998 .

[11]  Wade L. Griffin,et al.  A general bioeconomic simulation model for annual-crop marine fisheries , 1981 .

[12]  W. Overholtz,et al.  Effort control in the New England groundfish fishery : a bioeconomic perspective , 1995 .

[13]  A. D. Rijnsdorp,et al.  Competitive interactions among beam trawlers exploiting local patches of flatfish in the North Sea , 2000 .

[14]  John M. Blatt,et al.  Description of the Model , 1988 .

[15]  Sean Pascoe,et al.  Bioeconomic model, fisheries management, multi-objective modelling, goal programming, Common Fisheries Policy , 2001 .

[16]  Francis Laloë,et al.  A simulation model of artisanal fisheries of Senegal , 1991 .

[17]  D. Gascuel,et al.  Assessment of a multispecies fishery in Senegal, using production models and diversity indices , 1997 .

[18]  Sean Pascoe,et al.  Bycatch management and the economics of discarding , 1997 .

[19]  J. Beddington,et al.  Modelling interactions between inshore and offshore fisheries: the case of the East China Sea hairtail (Trichiurus haumela) fishery , 1996 .

[20]  Pierre Chavance,et al.  Les espaces de l'halieutique , 2000 .

[21]  Gianfranco Rizzo,et al.  A Bio-Economic Model for the Optimization of a Multi-Species, Multi-Gear Fishery: The Italian Case , 1992, Marine Resource Economics.

[22]  Sean Pascoe,et al.  Long run price flexibilities for the high valued species in the UK: a cointegration systems approach , 1997 .

[23]  Milner B. Schaefer.  Some aspects of the dynamics of populations important to the management of the commercial marine fisheries , 1991 .

[24]  Sean Pascoe,et al.  On the (ir)relevance of rates of return measures of economic performance to small boats , 2000 .