Improving the performance of a Mediterranean demersal fishery toward economic objectives beyond MSY. Merino, G., Quetglas, A., Maynou, F., Garau, A., Arrizabalaga, H., Murua, H., Santiago, J., Barange, M., Prellezo, R., Garcia, D., Lleonart, J., Tserpes, G., Maravelias, C., Carvalho, N., Austen, M., Fernandes, J. A., Oliver, P., & Maria Grau, A. FISHERIES RESEARCH, 161:131-144, ELSEVIER SCIENCE BV, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS, JAN, 2015.
doi  abstract   bibtex   
Mediterranean demersal fisheries are highly multispecific and many of their target stocks are overexploited. In addition, rocketing fuel costs and low market prices of traditionally high-value species are challenging the viability of fisheries. Here, based on the numeric results of a simulation model, we conclude that this situation can be remedied by reducing both fishing mortality and fishing costs. According to our model results, fishing effort reductions of 48-71% would improve the health of fish stocks while increasing the economic profits of Mallorca islands bottom trawl fishery to as much as 1.9 M(sic) (146% higher than current profits). If all fish stocks were exploited at their MSY (or below) level, the reduction in fishing effort would have to be of 71% from current values. If equilibrium profits from the fishery were to be maximized (MEY), fishing effort would need to be reduced by 48%. These results must be taken with caution due the many sources of uncertainty of our analysis. The modeling tools used to estimate these values are conditional to the adequate treatment of two sources of uncertainty that are particularly problematic in Mediterranean fisheries: insufficiently known recruitment variability and lack of periodic evaluations of the state of many species. Our results show that fishing effort reductions would produce economic yield gains after a period of transition. Further studies on the benefits of changing the size-selection pattern of fisheries, on better estimation of stock recruitment relationships and on better quantifications of the contribution of secondary species to these fisheries, are expected to improve the scientific recommendations for Mediterranean demersal fisheries toward sustainability principles. (C) 2014 Elsevier B.V. All rights reserved.
@article{ ISI:000345478600014,
Author = {Merino, Gorka and Quetglas, Antoni and Maynou, Francesc and Garau,
   Antoni and Arrizabalaga, Haritz and Murua, Hilario and Santiago, Josu
   and Barange, Manuel and Prellezo, Raul and Garcia, Dorleta and Lleonart,
   Jordi and Tserpes, Georges and Maravelias, Christos and Carvalho,
   Natacha and Austen, Melanie and Fernandes, Jose A. and Oliver, Pere and
   Maria Grau, Antoni},
Title = {{Improving the performance of a Mediterranean demersal fishery toward
   economic objectives beyond MSY}},
Journal = {{FISHERIES RESEARCH}},
Year = {{2015}},
Volume = {{161}},
Pages = {{131-144}},
Month = {{JAN}},
Abstract = {{Mediterranean demersal fisheries are highly multispecific and many of
   their target stocks are overexploited. In addition, rocketing fuel costs
   and low market prices of traditionally high-value species are
   challenging the viability of fisheries. Here, based on the numeric
   results of a simulation model, we conclude that this situation can be
   remedied by reducing both fishing mortality and fishing costs. According
   to our model results, fishing effort reductions of 48-71\% would improve
   the health of fish stocks while increasing the economic profits of
   Mallorca islands bottom trawl fishery to as much as 1.9 M(sic) (146\%
   higher than current profits). If all fish stocks were exploited at their
   MSY (or below) level, the reduction in fishing effort would have to be
   of 71\% from current values. If equilibrium profits from the fishery
   were to be maximized (MEY), fishing effort would need to be reduced by
   48\%. These results must be taken with caution due the many sources of
   uncertainty of our analysis. The modeling tools used to estimate these
   values are conditional to the adequate treatment of two sources of
   uncertainty that are particularly problematic in Mediterranean
   fisheries: insufficiently known recruitment variability and lack of
   periodic evaluations of the state of many species. Our results show that
   fishing effort reductions would produce economic yield gains after a
   period of transition. Further studies on the benefits of changing the
   size-selection pattern of fisheries, on better estimation of stock
   recruitment relationships and on better quantifications of the
   contribution of secondary species to these fisheries, are expected to
   improve the scientific recommendations for Mediterranean demersal
   fisheries toward sustainability principles. (C) 2014 Elsevier B.V. All
   rights reserved.}},
Publisher = {{ELSEVIER SCIENCE BV}},
Address = {{PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS}},
Type = {{Article}},
Language = {{English}},
Affiliation = {{Merino, G (Reprint Author), AZTI Tecnalia, Pasaia 20110, Gipuzkoa, Spain.
   Merino, Gorka; Arrizabalaga, Haritz; Murua, Hilario, AZTI Tecnalia, Pasaia 20110, Gipuzkoa, Spain.
   Merino, Gorka; Barange, Manuel; Austen, Melanie; Fernandes, Jose A., Plymouth Marine Lab, Plymouth PL1 3DH, Devon, England.
   Quetglas, Antoni; Oliver, Pere, Inst Espanol Oceanog, Ctr Oceanog Balears, Palma De Mallorca 07015, Spain.
   Maynou, Francesc; Lleonart, Jordi, CSIC, Inst Ciencias Mar, E-08003 Barcelona, Spain.
   Garau, Antoni, Federacio Balear Confraries Pescadors, Palma De Mallorca 07012, Illes Balears, Spain.
   Santiago, Josu; Prellezo, Raul; Garcia, Dorleta, AZTI Tecnalia, Bizkaia 48395, Spain.
   Tserpes, Georges, Hellen Ctr Marine Res, Inst Marine Biol Crete, Dept Fisheries, Iraklion 71003, Crete, Greece.
   Maravelias, Christos, Hellen Ctr Marine Res, Inst Marine Biol Resources, Athens 19013, Greece.
   Carvalho, Natacha, European Commiss, Joint Res Ctr, I-21027 Ispra, VA, Italy.
   Maria Grau, Antoni, Direccio Gen Pesca Govern Illes Balears, Palma De Mallorca 07006, Illes Balears, Spain.}},
DOI = {{10.1016/j.fishres.2014.06.010}},
ISSN = {{0165-7836}},
EISSN = {{1872-6763}},
Keywords = {{EU fisheries; Mediterranean; Demersal; Socioeconomics; Sustainability}},
Keywords-Plus = {{BIOECONOMIC SIMULATION ANALYSIS; SQUARE MESH CODEND; BALEARIC-ISLANDS;
   RED SHRIMP; MANAGEMENT IMPLICATIONS; TRAWL SELECTIVITY; STOCK
   ASSESSMENTS; HAKE; MODEL; CATCH}},
Research-Areas = {{Fisheries}},
Web-of-Science-Categories  = {{Fisheries}},
Author-Email = {{gmerino@azti.es}},
ResearcherID-Numbers = {{Prellezo, Raul/B-8231-2009
   Maynou, Francesc/A-6433-2011
   Barange, Manuel/D-2689-2016
   Quetglas, Antoni/K-9089-2014
   Fernandes, Jose A./B-8985-2009
   }},
ORCID-Numbers = {{Prellezo, Raul/0000-0001-5998-8146
   Maynou, Francesc/0000-0001-7200-6485
   Barange, Manuel/0000-0002-1508-0483
   Fernandes, Jose A./0000-0003-4677-6077
   Arrizabalaga, Haritz/0000-0002-3861-6316}},
Number-of-Cited-References = {{62}},
Times-Cited = {{9}},
Usage-Count-Last-180-days = {{2}},
Usage-Count-Since-2013 = {{26}},
Journal-ISO = {{Fish Res.}},
Doc-Delivery-Number = {{AU2XT}},
Unique-ID = {{ISI:000345478600014}},
OA = {{No}},
DA = {{2017-08-17}},
}

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