@article{ ISI:000299017200003,
Author = {Antonakakis, K. and Giannoulaki, M. and Machias, A. and Somarakis, S.
   and Sanchez, S. and Ibaibarriaga, L. and Uriarte, A.},
Title = {{Assessment of the sardine (Sardina pilchardus Walbaum, 1792) fishery in
   the eastern Mediterranean basin (North Aegean Sea)}},
Journal = {{MEDITERRANEAN MARINE SCIENCE}},
Year = {{2011}},
Volume = {{12}},
Number = {{2}},
Pages = {{333-357}},
Month = {{DEC}},
Abstract = {{The aim of this study is to describe the biometric characteristics of
   European sardine (Sardina pilchardus) catches and assess the current
   status of sardine stock in the North Aegean Sea based on population
   characteristics and abundance trends. The stock was dominated by age
   groups 1 and 2, not exceeding age group 4. The sardine stock in this
   area was assessed through an Integrated Catch-at-Age model which
   implements a separable Virtual Population Analysis on catch-at-age data
   with weighted tuning indices. Sardine landings data derived from the
   commercial purse seine fishery over the period 2000-2008 were combined
   with the age structure of the stock as resulting from fisheries'
   independent acoustic surveys. Sensitivity analysis of the impact of
   natural mortality values on stock assessment results was applied.
   Additionally forecast of the sardine population parameters and catches
   under different exploitation scenarios was implemented on a medium term
   basis. Results indicated that the North Aegean Sea sardine stock is
   considered fully exploited, with the fishery operating close to, but
   over the empirical exploitation level for sustainability. Finally, the
   status of the sardine stock in the North Aegean Sea is discussed in
   relation to the sardine stocks from the western and the central
   Mediterranean basin.}},
Publisher = {{NATL CENTRE MARINE RESEARCH}},
Address = {{AGHIOS KOSMAS, HELLINIKON, GR-16-604, GREECE}},
Type = {{Article}},
Language = {{English}},
Affiliation = {{Giannoulaki, M (Reprint Author), Hellen Ctr Marine Res, Inst Marine Biol Resources, POB 2214, Iraklion 71003, Greece.
   Giannoulaki, M.; Machias, A.; Somarakis, S., Hellen Ctr Marine Res, Inst Marine Biol Resources, Iraklion 71003, Greece.
   Antonakakis, K., Univ Crete, Dept Biol, Iraklion 71409, Greece.
   Sanchez, S.; Ibaibarriaga, L.; Uriarte, A., Fisheries \& Food Technol Inst Fdn AZTI, Pasaia 20110, Gipuzkoa, Spain.}},
ISSN = {{1108-393X}},
Keywords = {{European sardine; Eastern Mediterranean Sea; North Aegean Sea; Stock
   assessment; Integrated-Catch-at-Age Analysis; Natural mortality
   sensitivity}},
Keywords-Plus = {{ANCHOVY ENGRAULIS-ENCRASICOLUS; STOCK; PARAMETERS; MANAGEMENT; ATLANTIC;
   BLACK; VARIABILITY; RECRUITMENT; POPULATIONS; FRAMEWORK}},
Research-Areas = {{Fisheries; Geology; Marine \& Freshwater Biology; Oceanography}},
Web-of-Science-Categories  = {{Fisheries; Geosciences, Multidisciplinary; Marine \& Freshwater Biology;
   Oceanography}},
Author-Email = {{marianna@her.hcmr.gr}},
ResearcherID-Numbers = {{Giannoulaki, Marianna/B-6359-2012
   Ibaibarriaga, Leire/C-2483-2009}},
ORCID-Numbers = {{Ibaibarriaga, Leire/0000-0001-5619-1174}},
Funding-Acknowledgement = {{Commission of the European Union {[}FP6-44294]}},
Funding-Text = {{The study was partially supported and financed by the Greek National
   Fisheries Data Collection Program, the Commission of the European Union
   ({''}SARDONE: Improving assessment and management of small pelagic
   species in the Mediterranean{''}, FP6-44294). We want to thank the
   captain and the crew of the RV ``Philia{''} as well as all the
   scientists on board for their assistance during the surveys. Moreover,
   we would like to thank Beatrice Rod l for her constructive comments
   during the project. Moreover, we feel the need to thank Mark Payne for
   his help with the FLICA code in FLR as well as Finlay Scott and Graham
   Pilling for their help on the projection script in the FLR code.}},
Number-of-Cited-References = {{68}},
Times-Cited = {{12}},
Usage-Count-Last-180-days = {{1}},
Usage-Count-Since-2013 = {{7}},
Journal-ISO = {{Mediterr. Mar. Sci.}},
Doc-Delivery-Number = {{875GA}},
Unique-ID = {{ISI:000299017200003}},
OA = {{No}},
DA = {{2017-08-17}},
}

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The stock was dominated by age groups 1 and 2, not exceeding age group 4. The sardine stock in this area was assessed through an Integrated Catch-at-Age model which implements a separable Virtual Population Analysis on catch-at-age data with weighted tuning indices. Sardine landings data derived from the commercial purse seine fishery over the period 2000-2008 were combined with the age structure of the stock as resulting from fisheries' independent acoustic surveys. Sensitivity analysis of the impact of natural mortality values on stock assessment results was applied. Additionally forecast of the sardine population parameters and catches under different exploitation scenarios was implemented on a medium term basis. Results indicated that the North Aegean Sea sardine stock is considered fully exploited, with the fishery operating close to, but over the empirical exploitation level for sustainability. Finally, the status of the sardine stock in the North Aegean Sea is discussed in relation to the sardine stocks from the western and the central Mediterranean basin.","publisher":"NATL CENTRE MARINE RESEARCH","address":"AGHIOS KOSMAS, HELLINIKON, GR-16-604, GREECE","language":"English","affiliation":"Giannoulaki, M (Reprint Author), Hellen Ctr Marine Res, Inst Marine Biol Resources, POB 2214, Iraklion 71003, Greece. Giannoulaki, M.; Machias, A.; Somarakis, S., Hellen Ctr Marine Res, Inst Marine Biol Resources, Iraklion 71003, Greece. Antonakakis, K., Univ Crete, Dept Biol, Iraklion 71409, Greece. Sanchez, S.; Ibaibarriaga, L.; Uriarte, A., Fisheries & Food Technol Inst Fdn AZTI, Pasaia 20110, Gipuzkoa, Spain.","issn":"1108-393X","keywords":"European sardine; Eastern Mediterranean Sea; North Aegean Sea; Stock assessment; Integrated-Catch-at-Age Analysis; Natural mortality sensitivity","keywords-plus":"ANCHOVY ENGRAULIS-ENCRASICOLUS; STOCK; PARAMETERS; MANAGEMENT; ATLANTIC; BLACK; VARIABILITY; RECRUITMENT; POPULATIONS; FRAMEWORK","research-areas":"Fisheries; Geology; Marine & Freshwater Biology; Oceanography","web-of-science-categories":"Fisheries; Geosciences, Multidisciplinary; Marine & Freshwater Biology; Oceanography","author-email":"marianna@her.hcmr.gr","researcherid-numbers":"Giannoulaki, Marianna/B-6359-2012 Ibaibarriaga, Leire/C-2483-2009","orcid-numbers":"Ibaibarriaga, Leire/0000-0001-5619-1174","funding-acknowledgement":"Commission of the European Union [FP6-44294]","funding-text":"The study was partially supported and financed by the Greek National Fisheries Data Collection Program, the Commission of the European Union (''SARDONE: Improving assessment and management of small pelagic species in the Mediterranean'', FP6-44294). We want to thank the captain and the crew of the RV ``Philia'' as well as all the scientists on board for their assistance during the surveys. Moreover, we would like to thank Beatrice Rod l for her constructive comments during the project. Moreover, we feel the need to thank Mark Payne for his help with the FLICA code in FLR as well as Finlay Scott and Graham Pilling for their help on the projection script in the FLR code.","number-of-cited-references":"68","times-cited":"12","usage-count-last-180-days":"1","usage-count-since-2013":"7","journal-iso":"Mediterr. Mar. Sci.","doc-delivery-number":"875GA","unique-id":"ISI:000299017200003","oa":"No","da":"2017-08-17","bibtex":"@article{ ISI:000299017200003,\nAuthor = {Antonakakis, K. and Giannoulaki, M. and Machias, A. and Somarakis, S.\n and Sanchez, S. and Ibaibarriaga, L. and Uriarte, A.},\nTitle = {{Assessment of the sardine (Sardina pilchardus Walbaum, 1792) fishery in\n the eastern Mediterranean basin (North Aegean Sea)}},\nJournal = {{MEDITERRANEAN MARINE SCIENCE}},\nYear = {{2011}},\nVolume = {{12}},\nNumber = {{2}},\nPages = {{333-357}},\nMonth = {{DEC}},\nAbstract = {{The aim of this study is to describe the biometric characteristics of\n European sardine (Sardina pilchardus) catches and assess the current\n status of sardine stock in the North Aegean Sea based on population\n characteristics and abundance trends. The stock was dominated by age\n groups 1 and 2, not exceeding age group 4. The sardine stock in this\n area was assessed through an Integrated Catch-at-Age model which\n implements a separable Virtual Population Analysis on catch-at-age data\n with weighted tuning indices. Sardine landings data derived from the\n commercial purse seine fishery over the period 2000-2008 were combined\n with the age structure of the stock as resulting from fisheries'\n independent acoustic surveys. Sensitivity analysis of the impact of\n natural mortality values on stock assessment results was applied.\n Additionally forecast of the sardine population parameters and catches\n under different exploitation scenarios was implemented on a medium term\n basis. Results indicated that the North Aegean Sea sardine stock is\n considered fully exploited, with the fishery operating close to, but\n over the empirical exploitation level for sustainability. Finally, the\n status of the sardine stock in the North Aegean Sea is discussed in\n relation to the sardine stocks from the western and the central\n Mediterranean basin.}},\nPublisher = {{NATL CENTRE MARINE RESEARCH}},\nAddress = {{AGHIOS KOSMAS, HELLINIKON, GR-16-604, GREECE}},\nType = {{Article}},\nLanguage = {{English}},\nAffiliation = {{Giannoulaki, M (Reprint Author), Hellen Ctr Marine Res, Inst Marine Biol Resources, POB 2214, Iraklion 71003, Greece.\n Giannoulaki, M.; Machias, A.; Somarakis, S., Hellen Ctr Marine Res, Inst Marine Biol Resources, Iraklion 71003, Greece.\n Antonakakis, K., Univ Crete, Dept Biol, Iraklion 71409, Greece.\n Sanchez, S.; Ibaibarriaga, L.; Uriarte, A., Fisheries \\& Food Technol Inst Fdn AZTI, Pasaia 20110, Gipuzkoa, Spain.}},\nISSN = {{1108-393X}},\nKeywords = {{European sardine; Eastern Mediterranean Sea; North Aegean Sea; Stock\n assessment; Integrated-Catch-at-Age Analysis; Natural mortality\n sensitivity}},\nKeywords-Plus = {{ANCHOVY ENGRAULIS-ENCRASICOLUS; STOCK; PARAMETERS; MANAGEMENT; ATLANTIC;\n BLACK; VARIABILITY; RECRUITMENT; POPULATIONS; FRAMEWORK}},\nResearch-Areas = {{Fisheries; Geology; Marine \\& Freshwater Biology; Oceanography}},\nWeb-of-Science-Categories = {{Fisheries; Geosciences, Multidisciplinary; Marine \\& Freshwater Biology;\n Oceanography}},\nAuthor-Email = {{marianna@her.hcmr.gr}},\nResearcherID-Numbers = {{Giannoulaki, Marianna/B-6359-2012\n Ibaibarriaga, Leire/C-2483-2009}},\nORCID-Numbers = {{Ibaibarriaga, Leire/0000-0001-5619-1174}},\nFunding-Acknowledgement = {{Commission of the European Union {[}FP6-44294]}},\nFunding-Text = {{The study was partially supported and financed by the Greek National\n Fisheries Data Collection Program, the Commission of the European Union\n ({''}SARDONE: Improving assessment and management of small pelagic\n species in the Mediterranean{''}, FP6-44294). 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