A bio-economic indicators suite for the appraisal of the demersal trawl fishery in the Southern Adriatic Sea (Central Mediterranean) |
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| Authors: | Luca Ceriola Paolo Accadia Piero Mannini Fabio Massa Nicoletta Milone Nicola Ungaro |
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| Institution: | 1. Dipartimento di Produzione Animale, Facoltá di Agraria, Universitá degli Studi di Bari, Via Orabona 4, 70125 Bari, Italy;2. IREPA (Istituto di Ricerche Economiche per la Pesca e l’Acquacoltura) Onlus, Via S. Leonardo, trav. Migliaro 73, 84131 Salerno, Italy;3. FAO Fisheries Management and Conservation Service (FIMF), Via delle Terme di Caracalla, 00153 Rome, Italy;4. FAO AdriaMed, Via delle Terme di Caracalla 00153 Rome, Italy;5. ARPA (Agenzia Regionale per la Prevenzione e Protezione dell’Ambiente) Puglia, Corso Trieste 27, 70100 Bari, Italy;1. Institute for Resources, Environment, and Sustainability, The University of British Columbia, Vancouver, BC, Canada;2. Nippon Foundation NEREUS Program, Institute for the Oceans and Fisheries, The University of British Columbia, 2202 Main Mall, Vancouver, BC, Canada V6T1Z4;3. Center of Applied Ecology and Sustainability and Centro de Conservacion Marina, Facultad de Ciencias Biologicas, Pontificia Universidad Católica de Chile, Santiago, Chile;1. Hellenic Centre for Marine Research, Institute for Marine Biological Resources and Inland Waters, and Hydrobiological Station of Rhodes, 85100 Rhodes, Greece;2. University of Gothenburg, Department of Biological and Environmental Sciences, Kristineberg 566, Sweden;3. Hellenic Centre for Marine Research, Institute for Marine Biological Resources and Inland Waters, 19013 Anavyssos, Greece;4. SINTEF Ocean, Fishing Gear Technology, Willemoesvej 2, 9850 Hirtshals, Denmark;5. Italian National Research Council (CNR), Institute of Marine Biological Resources and Biotechnologies (IRBIM), Ancona, Italy;1. IEO, Promontorio San Martín s/n. 39004, Santander, Spain;2. IEO, Avda. Príncipe de Asturias, 70 bis - 33212, Gijón, Spain;1. Dipartimento di Elettronica, Informazione e Bioingegneria, Politecnico di Milano, via Ponzio 34/5, 20133 Milano, Italy;2. Consorzio Interuniversitario per le Scienze del Mare, Piazzale Flaminio 9, 00196 Roma, Italy;3. COISPA Tecnologia & Ricerca, Stazione Sperimentale per lo Studio delle Risorse del Mare, Via dei Trulli 18/20, 70126 Bari, Italy;4. NISEA Società Cooperativa, via Irno 11, 84135 Salerno, Italy;1. Lebanese National Council for Scientific Research – National Center for Marine Sciences (CNRS-L/CNSM), Batroun, Lebanon;2. Université de Perpignan Via Domitia, Centre de Formation et de Recherche sur les Environnements Méditerranéens, UMR 5110, 52 Avenue Paul Alduy, 66860 Perpignan, France;3. CNRS, Centre de Formation et de Recherche sur les Environnements Méditerranéens, UMR 5110, 52 Avenue Paul Alduy, 66860 Perpignan, France;4. Centre de Recherche sur les Ecosystèmes Marins (CREM), impasse du solarium, 66420 Port-Barcarès, France;5. Lebanese University – Faculty of Sciences II, Lebanon |
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| Abstract: | The state of demersal fishery in the Southern Adriatic Sea (GFCM-GSA 18, Central Mediterranean), years 1996–2003, from a biological, social and economic point of view was analysed using 47 indicators: 22 biological indicators obtained from fishery-independent data through yearly experimental bottom trawl surveys (“Medits” Programme), and 25 socio-economic indicators estimated from fishery-dependent data, available from the monitoring system of the Italian Institute for Economic Research on Fisheries and Aquaculture (IREPA). Biological indicators were applied for “single-species” (Eledone cirrhosa, E. moschata, Illex coindetti, Merluccius merluccius, Mullus barbatus, Nephrops norvegicus, Parapenaeus longirostris, Raja clavata, Zeus faber) and for “multi-species” analysis. Economic indicators describing economic performance, productivity, costs and prices, and the overall economic sustainability of fishery were estimated. Social indicators and a general indicator summarising social sustainability were also considered. Indicators’ values were displayed using the Traffic Light system. Both fishery-independent and fishery-dependent indicators highlighted a progressive decline of the trawl fishery system in the GSA 18. This decline was mainly related to the ongoing depletion of the traditional fishery target species (mostly long-living, late-maturing species) partially replaced by the increase of traditional accessory species (generally short-living species), as well as to the reduction of productivity and increasing costs. The whole procedure was proposed as a contribution to the identification and applicability of bio-economic indicators for fishery management purposes. |
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| Keywords: | Demersal fisheries Fishery management Indicators Mediterranean Sea Stock assessment Traffic light |
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