Winners and losers of a technical change: A case study of long-term management of the Northern European Hake. Garcia, D., Prellezo, R., Santurtun, M., & Arregi, L. FISHERIES RESEARCH, 110(1):98-110, ELSEVIER SCIENCE BV, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS, JUN, 2011.
doi  abstract   bibtex   
Since 2004 management of the Northern Stock of European Hake has been focused on recovering the stock level up to a level consistent with the precautionary approach. After that, in 2007 and once this objective was on the track of being fulfilled a long term management plan was proposed. This plan has to be congruent with the maximum sustainable yield policy as well as producing stable yields and population levels. Thus, in that year, a bioeconomic impact assessment of long-term management plans for this stock was carried out. However the biological and economic assessments were not integrated and not fully congruent. On the basis of this assessment additional questions relating to the combination of harvest control rules with technical measures were raised by the managers and stakeholders. Here, the model used in the biological assessment is extended in order to integrate the economic part and to shed light on the effect of technical measures at stock and fleet level. Two scenarios are presented: a `base case', where the model is parameterized from historical observations; and an `alternative case' where an increase in the mesh size of some trawlers is simulated. In both scenarios the probability of falling below limit reference points is above 0, contrary to the result obtained in 2007. However, the relative trends of the median of population indicators are similar. While the biological performance of the base and alternative scenarios is also similar the trawlers are highly penalized when their mesh size is increased and the overall economic profit is lower. Furthermore, two fleets gain and the rest remain the same with the increase in the mesh size of trawlers. (C) 2011 Elsevier B.V. All rights reserved.
@article{ ISI:000291838800012,
Author = {Garcia, Dorleta and Prellezo, Raul and Santurtun, Marina and Arregi,
   Luis},
Title = {{Winners and losers of a technical change: A case study of long-term
   management of the Northern European Hake}},
Journal = {{FISHERIES RESEARCH}},
Year = {{2011}},
Volume = {{110}},
Number = {{1}},
Pages = {{98-110}},
Month = {{JUN}},
Abstract = {{Since 2004 management of the Northern Stock of European Hake has been
   focused on recovering the stock level up to a level consistent with the
   precautionary approach. After that, in 2007 and once this objective was
   on the track of being fulfilled a long term management plan was
   proposed. This plan has to be congruent with the maximum sustainable
   yield policy as well as producing stable yields and population levels.
   Thus, in that year, a bioeconomic impact assessment of long-term
   management plans for this stock was carried out. However the biological
   and economic assessments were not integrated and not fully congruent. On
   the basis of this assessment additional questions relating to the
   combination of harvest control rules with technical measures were raised
   by the managers and stakeholders.
   Here, the model used in the biological assessment is extended in order
   to integrate the economic part and to shed light on the effect of
   technical measures at stock and fleet level. Two scenarios are
   presented: a `base case', where the model is parameterized from
   historical observations; and an `alternative case' where an increase in
   the mesh size of some trawlers is simulated.
   In both scenarios the probability of falling below limit reference
   points is above 0, contrary to the result obtained in 2007. However, the
   relative trends of the median of population indicators are similar.
   While the biological performance of the base and alternative scenarios
   is also similar the trawlers are highly penalized when their mesh size
   is increased and the overall economic profit is lower. Furthermore, two
   fleets gain and the rest remain the same with the increase in the mesh
   size of trawlers. (C) 2011 Elsevier B.V. All rights reserved.}},
Publisher = {{ELSEVIER SCIENCE BV}},
Address = {{PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS}},
Type = {{Article}},
Language = {{English}},
Affiliation = {{Garcia, D (Reprint Author), Txatxarramendi Ugartea ZG, Azti Tecnalia, Sukarrieta 48395, Spain.
   Garcia, Dorleta; Prellezo, Raul; Santurtun, Marina; Arregi, Luis, Txatxarramendi Ugartea ZG, Azti Tecnalia, Sukarrieta 48395, Spain.}},
DOI = {{10.1016/j.fishres.2011.03.018}},
ISSN = {{0165-7836}},
Keywords = {{Discards; Long term management; Management strategy evaluation; Northern
   European Hake; Technical measures}},
Keywords-Plus = {{FISHERIES MANAGEMENT; MESH-SIZE; MERLUCCIUS-MERLUCCIUS; AGE ESTIMATION;
   SELECTIVITY; ECOSYSTEM; FRAMEWORK; REQUIRES; IMPACTS; ADVICE}},
Research-Areas = {{Fisheries}},
Web-of-Science-Categories  = {{Fisheries}},
Author-Email = {{dgarcia@azti.es
   rprellezo@azti.es
   msanturtun@azti.es
   larregi@azti.es}},
ResearcherID-Numbers = {{Prellezo, Raul/B-8231-2009}},
ORCID-Numbers = {{Prellezo, Raul/0000-0001-5998-8146}},
Funding-Acknowledgement = {{Basque Country Government (Agriculture and Fisheries Department); EU
   {[}502516, 502289, 022686]}},
Funding-Text = {{This work has been funded through the Basque Country Government
   (Agriculture and Fisheries Department) and several FP6 EU funded
   projects (EFIMAS, Operational Evaluation Tools for Fisheries Management
   Options, contract no 502516, COMMIT, Creation of Multi-annual Management
   Plans for Commitment, contract no 502289 and CEVIS, Comparative
   Evaluations of Innovative Solutions in European fisheries management,
   contract no. 022686). We would also like to acknowledge the work done by
   Inaki Quincoces (Azti-Tecnalia) in preparing the computer grid for
   running the simulations, Michel Bertignac (IFREMER) and Nelida Perez
   (IEO) for providing data, Richard Curtin and Ane Iriondo (Azti-Tecnalia)
   for supervising the English and creating Fig. 2, respectively. Finally
   we want to thank the anonymous reviewers for useful comments that helped
   to improve the paper. The paper is contribution no. 535 from
   Azti-Tecnalia (Marine Research Unit).}},
Number-of-Cited-References = {{43}},
Times-Cited = {{3}},
Usage-Count-Last-180-days = {{2}},
Usage-Count-Since-2013 = {{8}},
Journal-ISO = {{Fish Res.}},
Doc-Delivery-Number = {{780FB}},
Unique-ID = {{ISI:000291838800012}},
OA = {{No}},
DA = {{2017-08-17}},
}

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