Performance of a northwestern Mediterranean bottom trawl fleet: How the integration of landings and VMS data can contribute to the implementation of ecosystem-based fisheries management |
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| Institution: | 1. Institut de Ciències del Mar (ICM-CSIC), Passeig Marítim 37-49, 08003 Barcelona, Spain;2. National Institute of Water and Atmospheric Research, Gate 10 Silverdale Rd, PO BOX 11115, Hamilton, New Zealand;1. Department of Nephrology and Organ Transplantation, CHU Rangueil, Toulouse, France;2. Laboratory of Virology, CHU Purpan, Toulouse, France;3. Inserm UMR1043, Centre de Physiopathologie de Toulouse Purpan, Toulouse, France;4. Université Paul Sabatier, Toulouse, France;1. Marine Conservation Society, Ross-on-Wye, Herefordshire, UK;2. Laurence Mee Centre for Society and the Sea, Scottish Association for Marine Science (SAMS), University of the Highlands and Islands, Oban, Scotland, UK;3. Centre for Mountain Studies, Perth College, University of the Highlands and Islands, Scotland, UK;4. Community Voice Consulting, Warrenton, NC, USA;5. Sussex Inshore Fisheries and Conservation Authority, Shoreham, West Sussex, UK;1. MARE - Marine and Environmental Sciences Centre, ISPA – Instituto Universitário, Rua Jardim do Tabaco 34, Lisboa, 1149-041 Portugal;2. Centre of Marine Sciences, CCMAR, University of Algarve, Campus de Gambelas, Faro, 8005-139 Portugal;3. National Center for Scientific Research (CNRS), CRIOBE, USR 3278 CNRS-EPHE-UPVD, Perpignan, 66860 France;4. Laboratoire d′Excellence CORAIL, France |
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| Abstract: | The European Union has established a framework to achieve or maintain good environmental status in the marine environment by 2020. The Marine Strategy Framework Directive requires the application of the ecosystem approach to the management of human activities, covering all sectors having an impact on the marine environment. However, fisheries in the Mediterranean are far from a systematic implementation of an ecosystem-based fisheries management (EBFM). Aiming to address this issue, this study explores the potential of the relationship between daily yield by vessel (landings and income by species) and vessel position (known via vessel monitoring system) as a tool for fleet management. This approach is possible due to the current dynamics of Mediterranean fleets, with vessels returning daily to the harbour where landings are registered as weight and income by vessel. Moreover, vessels of >15 m total length have been compulsory monitored by VMS since 2005. A bottom trawl fleet that operates in the northwestern Mediterranean was chosen to develop this approach. Different groups of trawlers were identified, which could be linked to the strategies displayed by the fishermen that were mainly driven by the target species dynamics. Accurate knowledge of the fishing targets driving the fleet dynamics and of the fishing strategies at the vessel level (i.e. fishing ground habitat where the fishing pressure is exerted and corresponding landings) are shown to be a feasible tool for fleet management. |
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| Keywords: | Fishing fleet management Mediterranean fisheries Ecosystem approach Fishing strategies Target species dynamics Bottom trawl |
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