Fishing management scenarios to rebuild exploited resources and ecosystems of the Northern-Central Adriatic (Mediterranean Sea)

• Published in: Journal of marine systems 2012-10, Vol.102-104, p.39-51
• Main Authors: Fouzai, Nadia, Coll, Marta, Palomera, Isabel, Santojanni, Alberto, Arneri, Enrico, Christensen, Villy
• Format: Article
• Language: English
• Subjects: ADMINISTRACION PESQUERA; Ecopath with Ecosim; ECOSISTEMA; Ecospace; ECOSYSTEME; ECOSYSTEMS; ENVIRONMENTAL PROTECTION; Fisheries management; FISHERY MANAGEMENT; GESTION DES PECHES; Marine protected areas (MPA); MARINE RESOURCES; Northern-Central Adriatic Sea; PROTECCION AMBIENTAL; PROTECTION DE L'ENVIRONNEMENT; RECURSOS MARINOS; RESSOURCE MARINE; Trophic models
• ISSN: 0924-7963; 1879-1573
• DOI: 10.1016/j.jmarsys.2012.05.003

We examined various fishing management options to recover exploited marine resources and ecosystems of the Northern-Central Adriatic Sea. Dynamic simulations were based on a spatial ecological model previously calibrated with time series of data. Scenarios regarding spatial management were evaluated with the establishment of two marine protected areas, respectively, in the Pomo pit and the northern region. In addition, three temporal simulations of temporary closures and overall reduction of fishing effort of demersal and pelagic fleets (bottom, mid-water trawls and purse seines) were also considered. Simulations were run for 45years (1975–2020), including the calibration period (1975–2002), and changes in biomass and catch of marine resources were analyzed. Our results confirm that current fishing management in the Adriatic Sea does not have clear beneficial impacts for the recovery of exploited resources, which will remain depleted in 2020 if “business as usual” continues. Simulations of alternative management suggest that both protected areas could be beneficial for fish population recovery predicting an increase in the biomass of commercial fish and predatory organisms. Simulations of temporary closures and overall reduction of fishing effort also show significant benefits for several commercial resources. We argue that both management measures may be effective tools to recover exploited ecosystems of the Northern-Central Adriatic Sea and halt the decline of marine resources. ► We aimed at exploring rebuilding of exploited marine resources and ecosystems of the NC Adriatic Sea. ► We used a spatiotemporal simulation model to examine suitable fishing management options. ► Results show that current fishing management does not have clear beneficial impacts for rebuilding. ► Additionally, resources may remain depleted in 2015 if “business as usual” continues. ► Simulations show that MPA establishment and temporary closures may be effective to foster rebuilding.