@article{ ISI:000267128000015,
Author = {Cotter, John and Petitgas, Pierre and Abella, Alvaro and Apostolaki,
   Panayiota and Mesnil, Benoit and Politou, Chrissi-Yianna and Rivoirard,
   Jacques and Rochet, Marie-Joelle and Spedicato, Maria Teresa and
   Trenkel, Verena M. and Woillez, Mathieu},
Title = {{Towards an ecosystem approach to fisheries management (EAFM) when trawl
   surveys provide the main source of information}},
Journal = {{AQUATIC LIVING RESOURCES}},
Year = {{2009}},
Volume = {{22}},
Number = {{2}},
Pages = {{243-254}},
Month = {{APR-JUN}},
Abstract = {{Ideas and considerations are put forward for managing fisheries and
   marine populations using primarily trawl surveys to supply biological
   and spatial indicators of the state of stocks, and to permit catch per
   unit effort (CPUE)-based assessments. Trawl surveys seldom allow
   absolute estimates of fish population sizes but, if appropriately
   located, timed, and designed, can provide a broad range of information
   about catchable fish species and the ecosystem that supports them. This
   information may be more conducive to sustainable management of fisheries
   than the traditional focus on the abundances of selected stocks. The
   paper first briefly proposes how survey-based methods might supplement
   existing fishery-dependent stock assessments, as would be necessary
   during a transition phase to a more ecosystem-orientated system of
   management. Full survey-based management is then considered in relation
   to management objectives, the selection of indicators, survey design,
   reference periods, levels and directions, statistical aspects,
   CPUE-based assessments, and management responses to good and bad signals
   from the ecosystem. We argue that existing fishery-dependent stock
   assessments cannot be claimed to produce absolute estimates of stock
   abundance and fishing mortality because natural mortality (M) is seldom
   known accurately and, therefore, that they should not be presumed
   superior to the relative information from surveys, and an agreeable form
   of adaptive management.}},
Publisher = {{EDP SCIENCES S A}},
Address = {{17, AVE DU HOGGAR, PA COURTABOEUF, BP 112, F-91944 LES ULIS CEDEX A,
   FRANCE}},
Type = {{Review}},
Language = {{English}},
Affiliation = {{Woillez, M (Reprint Author), Ctr Geosci Geostat, 35 Rue St Honore, F-77300 Fontainebleau, France.
   Rivoirard, Jacques; Woillez, Mathieu, Ctr Geosci Geostat, F-77300 Fontainebleau, France.
   Cotter, John; Apostolaki, Panayiota, CEFAS, Lowestoft NR33 0HT, Suffolk, England.
   Abella, Alvaro, ARPAT, I-57100 Livorno, Italy.
   Politou, Chrissi-Yianna, Hellen Ctr Marine Res, Inst Marine Biol Resources, Athens 16604, Greece.
   Spedicato, Maria Teresa, COISPA Tecnol \& Ric, I-70045 Bari, Italy.
   Petitgas, Pierre; Mesnil, Benoit; Rochet, Marie-Joelle; Trenkel, Verena M., IFREMER, Dept EMH, F-44311 Nantes, France.}},
DOI = {{10.1051/alr/2009025}},
ISSN = {{0990-7440}},
EISSN = {{1765-2952}},
Keywords = {{Fisheries management; Trawl survey; State indicator; Spatial indicator;
   Survey-based stock assessment; Fisheries-independent assessment; Fishing
   effort indicator}},
Keywords-Plus = {{NATURAL MORTALITY; STOCK ASSESSMENT; NORTH-SEA; FISH COMMUNITIES; MARINE
   ECOSYSTEM; TIME-SERIES; ASSESSMENT METHODOLOGY; SPATIAL-PATTERNS; WORLD
   FISHERIES; MONITOR CHANGES}},
Research-Areas = {{Fisheries; Marine \& Freshwater Biology}},
Web-of-Science-Categories  = {{Fisheries; Marine \& Freshwater Biology}},
Author-Email = {{john.cotter@fishworldscience.com}},
ORCID-Numbers = {{Woillez, Mathieu/0000-0002-1032-2105
   Trenkel, Verena/0000-0001-7869-002X}},
Funding-Acknowledgement = {{European Commission; national fisheries agencies}},
Funding-Text = {{This work was a contribution to the FISBOAT project funded by the
   European Commission and also supported by national fisheries agencies.
   The authors are grateful to the many other project participants who
   contributed to discussions.}},
Number-of-Cited-References = {{115}},
Times-Cited = {{25}},
Usage-Count-Last-180-days = {{0}},
Usage-Count-Since-2013 = {{17}},
Journal-ISO = {{Aquat. Living Resour.}},
Doc-Delivery-Number = {{459SB}},
Unique-ID = {{ISI:000267128000015}},
OA = {{No}},
DA = {{2017-08-17}},
}

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M.","Woillez, M."],"year":2009,"bibtype":"article","biburl":"http://flr-project.org/flr.bib","bibdata":{"bibtype":"article","type":"Review","author":[{"propositions":[],"lastnames":["Cotter"],"firstnames":["John"],"suffixes":[]},{"propositions":[],"lastnames":["Petitgas"],"firstnames":["Pierre"],"suffixes":[]},{"propositions":[],"lastnames":["Abella"],"firstnames":["Alvaro"],"suffixes":[]},{"propositions":[],"lastnames":["Apostolaki"],"firstnames":["Panayiota"],"suffixes":[]},{"propositions":[],"lastnames":["Mesnil"],"firstnames":["Benoit"],"suffixes":[]},{"propositions":[],"lastnames":["Politou"],"firstnames":["Chrissi-Yianna"],"suffixes":[]},{"propositions":[],"lastnames":["Rivoirard"],"firstnames":["Jacques"],"suffixes":[]},{"propositions":[],"lastnames":["Rochet"],"firstnames":["Marie-Joelle"],"suffixes":[]},{"propositions":[],"lastnames":["Spedicato"],"firstnames":["Maria","Teresa"],"suffixes":[]},{"propositions":[],"lastnames":["Trenkel"],"firstnames":["Verena","M."],"suffixes":[]},{"propositions":[],"lastnames":["Woillez"],"firstnames":["Mathieu"],"suffixes":[]}],"title":"Towards an ecosystem approach to fisheries management (EAFM) when trawl surveys provide the main source of information","journal":"AQUATIC LIVING RESOURCES","year":"2009","volume":"22","number":"2","pages":"243-254","month":"APR-JUN","abstract":"Ideas and considerations are put forward for managing fisheries and marine populations using primarily trawl surveys to supply biological and spatial indicators of the state of stocks, and to permit catch per unit effort (CPUE)-based assessments. Trawl surveys seldom allow absolute estimates of fish population sizes but, if appropriately located, timed, and designed, can provide a broad range of information about catchable fish species and the ecosystem that supports them. This information may be more conducive to sustainable management of fisheries than the traditional focus on the abundances of selected stocks. The paper first briefly proposes how survey-based methods might supplement existing fishery-dependent stock assessments, as would be necessary during a transition phase to a more ecosystem-orientated system of management. Full survey-based management is then considered in relation to management objectives, the selection of indicators, survey design, reference periods, levels and directions, statistical aspects, CPUE-based assessments, and management responses to good and bad signals from the ecosystem. We argue that existing fishery-dependent stock assessments cannot be claimed to produce absolute estimates of stock abundance and fishing mortality because natural mortality (M) is seldom known accurately and, therefore, that they should not be presumed superior to the relative information from surveys, and an agreeable form of adaptive management.","publisher":"EDP SCIENCES S A","address":"17, AVE DU HOGGAR, PA COURTABOEUF, BP 112, F-91944 LES ULIS CEDEX A, FRANCE","language":"English","affiliation":"Woillez, M (Reprint Author), Ctr Geosci Geostat, 35 Rue St Honore, F-77300 Fontainebleau, France. Rivoirard, Jacques; Woillez, Mathieu, Ctr Geosci Geostat, F-77300 Fontainebleau, France. Cotter, John; Apostolaki, Panayiota, CEFAS, Lowestoft NR33 0HT, Suffolk, England. Abella, Alvaro, ARPAT, I-57100 Livorno, Italy. Politou, Chrissi-Yianna, Hellen Ctr Marine Res, Inst Marine Biol Resources, Athens 16604, Greece. Spedicato, Maria Teresa, COISPA Tecnol & Ric, I-70045 Bari, Italy. Petitgas, Pierre; Mesnil, Benoit; Rochet, Marie-Joelle; Trenkel, Verena M., IFREMER, Dept EMH, F-44311 Nantes, France.","doi":"10.1051/alr/2009025","issn":"0990-7440","eissn":"1765-2952","keywords":"Fisheries management; Trawl survey; State indicator; Spatial indicator; Survey-based stock assessment; Fisheries-independent assessment; Fishing effort indicator","keywords-plus":"NATURAL MORTALITY; STOCK ASSESSMENT; NORTH-SEA; FISH COMMUNITIES; MARINE ECOSYSTEM; TIME-SERIES; ASSESSMENT METHODOLOGY; SPATIAL-PATTERNS; WORLD FISHERIES; MONITOR CHANGES","research-areas":"Fisheries; Marine & Freshwater Biology","web-of-science-categories":"Fisheries; Marine & Freshwater Biology","author-email":"john.cotter@fishworldscience.com","orcid-numbers":"Woillez, Mathieu/0000-0002-1032-2105 Trenkel, Verena/0000-0001-7869-002X","funding-acknowledgement":"European Commission; national fisheries agencies","funding-text":"This work was a contribution to the FISBOAT project funded by the European Commission and also supported by national fisheries agencies. The authors are grateful to the many other project participants who contributed to discussions.","number-of-cited-references":"115","times-cited":"25","usage-count-last-180-days":"0","usage-count-since-2013":"17","journal-iso":"Aquat. Living Resour.","doc-delivery-number":"459SB","unique-id":"ISI:000267128000015","oa":"No","da":"2017-08-17","bibtex":"@article{ ISI:000267128000015,\nAuthor = {Cotter, John and Petitgas, Pierre and Abella, Alvaro and Apostolaki,\n Panayiota and Mesnil, Benoit and Politou, Chrissi-Yianna and Rivoirard,\n Jacques and Rochet, Marie-Joelle and Spedicato, Maria Teresa and\n Trenkel, Verena M. and Woillez, Mathieu},\nTitle = {{Towards an ecosystem approach to fisheries management (EAFM) when trawl\n surveys provide the main source of information}},\nJournal = {{AQUATIC LIVING RESOURCES}},\nYear = {{2009}},\nVolume = {{22}},\nNumber = {{2}},\nPages = {{243-254}},\nMonth = {{APR-JUN}},\nAbstract = {{Ideas and considerations are put forward for managing fisheries and\n marine populations using primarily trawl surveys to supply biological\n and spatial indicators of the state of stocks, and to permit catch per\n unit effort (CPUE)-based assessments. Trawl surveys seldom allow\n absolute estimates of fish population sizes but, if appropriately\n located, timed, and designed, can provide a broad range of information\n about catchable fish species and the ecosystem that supports them. This\n information may be more conducive to sustainable management of fisheries\n than the traditional focus on the abundances of selected stocks. The\n paper first briefly proposes how survey-based methods might supplement\n existing fishery-dependent stock assessments, as would be necessary\n during a transition phase to a more ecosystem-orientated system of\n management. Full survey-based management is then considered in relation\n to management objectives, the selection of indicators, survey design,\n reference periods, levels and directions, statistical aspects,\n CPUE-based assessments, and management responses to good and bad signals\n from the ecosystem. We argue that existing fishery-dependent stock\n assessments cannot be claimed to produce absolute estimates of stock\n abundance and fishing mortality because natural mortality (M) is seldom\n known accurately and, therefore, that they should not be presumed\n superior to the relative information from surveys, and an agreeable form\n of adaptive management.}},\nPublisher = {{EDP SCIENCES S A}},\nAddress = {{17, AVE DU HOGGAR, PA COURTABOEUF, BP 112, F-91944 LES ULIS CEDEX A,\n FRANCE}},\nType = {{Review}},\nLanguage = {{English}},\nAffiliation = {{Woillez, M (Reprint Author), Ctr Geosci Geostat, 35 Rue St Honore, F-77300 Fontainebleau, France.\n Rivoirard, Jacques; Woillez, Mathieu, Ctr Geosci Geostat, F-77300 Fontainebleau, France.\n Cotter, John; Apostolaki, Panayiota, CEFAS, Lowestoft NR33 0HT, Suffolk, England.\n Abella, Alvaro, ARPAT, I-57100 Livorno, Italy.\n Politou, Chrissi-Yianna, Hellen Ctr Marine Res, Inst Marine Biol Resources, Athens 16604, Greece.\n Spedicato, Maria Teresa, COISPA Tecnol \\& Ric, I-70045 Bari, Italy.\n Petitgas, Pierre; Mesnil, Benoit; Rochet, Marie-Joelle; Trenkel, Verena M., IFREMER, Dept EMH, F-44311 Nantes, France.}},\nDOI = {{10.1051/alr/2009025}},\nISSN = {{0990-7440}},\nEISSN = {{1765-2952}},\nKeywords = {{Fisheries management; Trawl survey; State indicator; Spatial indicator;\n Survey-based stock assessment; Fisheries-independent assessment; Fishing\n effort indicator}},\nKeywords-Plus = {{NATURAL MORTALITY; STOCK ASSESSMENT; NORTH-SEA; FISH COMMUNITIES; MARINE\n ECOSYSTEM; TIME-SERIES; ASSESSMENT METHODOLOGY; SPATIAL-PATTERNS; WORLD\n FISHERIES; MONITOR CHANGES}},\nResearch-Areas = {{Fisheries; Marine \\& Freshwater Biology}},\nWeb-of-Science-Categories = {{Fisheries; Marine \\& Freshwater Biology}},\nAuthor-Email = {{john.cotter@fishworldscience.com}},\nORCID-Numbers = {{Woillez, Mathieu/0000-0002-1032-2105\n Trenkel, Verena/0000-0001-7869-002X}},\nFunding-Acknowledgement = {{European Commission; national fisheries agencies}},\nFunding-Text = {{This work was a contribution to the FISBOAT project funded by the\n European Commission and also supported by national fisheries agencies.\n The authors are grateful to the many other project participants who\n contributed to discussions.}},\nNumber-of-Cited-References = {{115}},\nTimes-Cited = {{25}},\nUsage-Count-Last-180-days = {{0}},\nUsage-Count-Since-2013 = {{17}},\nJournal-ISO = {{Aquat. 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