@article{ ISI:000269203200019,
Author = {Kell, Laurence T. and Dickey-Collas, Mark and Hintzen, Niels T. and
   Nash, Richard D. M. and Pilling, Graham M. and Roel, Beatriz A.},
Title = {{Lumpers or splitters? Evaluating recovery and management plans for
   metapopulations of herring}},
Journal = {{ICES JOURNAL OF MARINE SCIENCE}},
Year = {{2009}},
Volume = {{66}},
Number = {{8}},
Pages = {{1776-1783}},
Month = {{SEP}},
Note = {{International Symposium on Linking Herring, Natl Univ Ireland, Galway,
   IRELAND, AUG 26-29, 2008}},
Organization = {{Marine Inst; Inst Marine Res; ICES; Irish Tourist Board; PICES;
   Wageningen IMARES}},
Abstract = {{The long-term management of a stock representing a metapopulation has
   been simulated in a case study loosely based upon herring to the west of
   the British isles, where stocks are currently assessed and managed by
   management area, although there is evidence of mixing between stocks (in
   terms of connectivity, migrations, and exploitation). The simulations
   evaluate scientific advice (based on virtual population analysis, VPA)
   and the sustainability of fishing under two population-structure
   scenarios, corresponding either to discrete stocks, which only mix on
   the feeding grounds, or where diffusion between stocks takes place. The
   ability of stock assessment to monitor stock status and exploitation
   levels was evaluated for defining stocks based on fishing areas and for
   stocks that combined fishing areas. The study showed that assessment
   based on VPA of the metapopulation could fail to detect overexploitation
   of stocks and fail to detect and distinguish between the effects of
   exploitation and regime shifts.}},
Publisher = {{OXFORD UNIV PRESS}},
Address = {{GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND}},
Type = {{Article; Proceedings Paper}},
Language = {{English}},
Affiliation = {{Kell, LT (Reprint Author), ICCAT, Corazon de Maria 8,Planta 6, Madrid 28002, Spain.
   Kell, Laurence T.; Pilling, Graham M.; Roel, Beatriz A., Cefas, Lowestoft Lab, Lowestoft NR33 0HT, Suffolk, England.
   Dickey-Collas, Mark; Hintzen, Niels T., Wageningen Inst Marine Resources \& Ecosyst Studie, NL-1970 AB Ijmuiden, Netherlands.
   Nash, Richard D. M., Inst Marine Res, N-5817 Bergen, Norway.}},
DOI = {{10.1093/icesjms/fsp181}},
ISSN = {{1054-3139}},
Keywords = {{diffusion; evaluation; fishery; FLR; herring; management;
   metapopulations; mixing; populations; regime shifts; stock definition;
   virtual population analysis}},
Keywords-Plus = {{CLUPEA-HARENGUS; NORTH-SEA; POPULATIONS; FISHERIES; STRATEGIES; FISH;
   WEST}},
Research-Areas = {{Fisheries; Marine \& Freshwater Biology; Oceanography}},
Web-of-Science-Categories  = {{Fisheries; Marine \& Freshwater Biology; Oceanography}},
Author-Email = {{laurie.kell@iccat.int}},
ResearcherID-Numbers = {{Dickey-Collas, Mark/A-8036-2008}},
Number-of-Cited-References = {{35}},
Times-Cited = {{42}},
Usage-Count-Last-180-days = {{2}},
Usage-Count-Since-2013 = {{20}},
Journal-ISO = {{ICES J. Mar. Sci.}},
Doc-Delivery-Number = {{486NH}},
Unique-ID = {{ISI:000269203200019}},
OA = {{No}},
DA = {{2017-08-17}},
}

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The simulations evaluate scientific advice (based on virtual population analysis, VPA) and the sustainability of fishing under two population-structure scenarios, corresponding either to discrete stocks, which only mix on the feeding grounds, or where diffusion between stocks takes place. The ability of stock assessment to monitor stock status and exploitation levels was evaluated for defining stocks based on fishing areas and for stocks that combined fishing areas. The study showed that assessment based on VPA of the metapopulation could fail to detect overexploitation of stocks and fail to detect and distinguish between the effects of exploitation and regime shifts.","publisher":"OXFORD UNIV PRESS","address":"GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND","language":"English","affiliation":"Kell, LT (Reprint Author), ICCAT, Corazon de Maria 8,Planta 6, Madrid 28002, Spain. 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M. and Pilling, Graham M. and Roel, Beatriz A.},\nTitle = {{Lumpers or splitters? Evaluating recovery and management plans for\n metapopulations of herring}},\nJournal = {{ICES JOURNAL OF MARINE SCIENCE}},\nYear = {{2009}},\nVolume = {{66}},\nNumber = {{8}},\nPages = {{1776-1783}},\nMonth = {{SEP}},\nNote = {{International Symposium on Linking Herring, Natl Univ Ireland, Galway,\n IRELAND, AUG 26-29, 2008}},\nOrganization = {{Marine Inst; Inst Marine Res; ICES; Irish Tourist Board; PICES;\n Wageningen IMARES}},\nAbstract = {{The long-term management of a stock representing a metapopulation has\n been simulated in a case study loosely based upon herring to the west of\n the British isles, where stocks are currently assessed and managed by\n management area, although there is evidence of mixing between stocks (in\n terms of connectivity, migrations, and exploitation). 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The study showed that assessment\n based on VPA of the metapopulation could fail to detect overexploitation\n of stocks and fail to detect and distinguish between the effects of\n exploitation and regime shifts.}},\nPublisher = {{OXFORD UNIV PRESS}},\nAddress = {{GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND}},\nType = {{Article; Proceedings Paper}},\nLanguage = {{English}},\nAffiliation = {{Kell, LT (Reprint Author), ICCAT, Corazon de Maria 8,Planta 6, Madrid 28002, Spain.\n Kell, Laurence T.; Pilling, Graham M.; Roel, Beatriz A., Cefas, Lowestoft Lab, Lowestoft NR33 0HT, Suffolk, England.\n Dickey-Collas, Mark; Hintzen, Niels T., Wageningen Inst Marine Resources \\& Ecosyst Studie, NL-1970 AB Ijmuiden, Netherlands.\n Nash, Richard D. 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