INTERNATIONAL COMMISSION FOR THE CONSERVATION OF ATLANTIC TUNAS
COMMISSION INTERNATIONALE POUR LA CONSERVATION DES THONIDES DE L'ATLANTIQUE
COMISIÓN INTERNACIONAL PARA LA CONSERVACIÓN DEL ATÚN ATLÁNTICO

COLLECTIVE VOLUME OF SCIENTIFIC PAPERS, 78 (2021)


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  • Report of the Intersessional Meeting of the Billfish Species Group
  • Rapport de la réunion intersessions du groupe d’espèces sur les istiophoridés
  • Informe de la reunión intersesiones del grupo de especies de istiofóridos
SCRS/2021/002 Report of the Intersessional Meeting of the Billfish Species Group (8-12 March 2021, Online)/Rapport de la réunion intersessions du groupe d’espèces sur les istiophoridés
(en ligne, 8 - 12 mars 2021)/Informe de la reunión intersesiones
del grupo de especies de istiofóridos (En línea, 8-12 de marzo de 2021)
Anon. 1-61
SCRS/2021/015 Description of Canada’s proposed blue marlin, white marlin/roundscale spearfish discard estimation analyses
Gillespie K. 62-66
SCRS/2021/175 Report of the Sub-group on Technical Gear Changes from the Billfish Species Group Anon. 67-74

 

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  • Report of the Tropical Tunas MSE Technical Group Meeting
  • Rapport de la réunion du groupe technique sur la MSE pour les thonidés tropicaux
  • Informe de la reunión del grupo técnico sobre MSE para los túnidos tropicales
SCRS/2021/001 Report of the Tropical Tunas MSE Technical Group meeting
(online 29-31 march 2021)
Rapport de la réunion du groupe technique sur la MSE pour les thonidés tropicaux
(en ligne, 29-31 mars 2021)
Informe de la reunión del grupo técnico sobre MSE para los túnidos tropicales (en línea, 29-31 de marzo de 2021)
Anon. 1-35
SCRS/2021/016 Characterization of structural uncertainty in tropical tuna stocks’ dynamics Merino G., D. Die, A. Urtizberea, and A. Laborda 36-45
  • Report of the Bigeye Tuna Data Preparatory Meeting
  • Rapport de la réunion de préparation des données sur le thon obèse
  • Informe de la reunión de preparación de datos de patudo
SCRS/2021/004 Report of the Bigeye Tuna Data Preparatory Meeting (online, 22-30 April 2021)/Rapport de la réunion de préparation des données sur le thon obèse (22-30 avril 2021, en-ligne)/Reunión de preparación de datos de patudo (en línea, 22-30 de abril de 2021) Anon. 46-143
SCRS/2021/051 Review of fishing operation and bigeye tuna catch by Japanese longline fishery in the Atlantic Ocean Matsumoto T. 144-168
SCRS/2021/052 Update of trilateral collaborative study among Japan, Korea and Chinese Taipei for producing joint abundance indices for the Atlantic bigeye tunas using longline fisheries data up to 2019  Kitakado T., K. Satoh, Sl Lee, NJ Su, T Matsumoto, H Yokoi, K Okamoto, Kyung Lee M, Lim JH, Kwon Y, Wang SP, Tsai WP, Chang ST, and Chang FC  169-196
SCRS/2021/053 Update of information on Korean tune longline fishery and CPUE standardization of bigeye tuna in the Atlantic Ocean Lee SL, Lee MK, Lim J, and Y. Kwon 197-209
SCRS/2021/054
Standardization of bigeye Tuna CPUE in the Atlantic Ocean by the Japanese longline fishery which includes cluster analysis
Matsumoto T., H. Yokoi, and K. Satoh 210-226
SCRS/2021/055 Progress on characterization of structural uncertainty in tropical tuna stocks’ dynamics with summary of discussions held during the Tropical Tuna MSE Meeting (29-31 March 2021) Merino G., D. Die, A. Urtizberea, and A. Laborda 227-230
SCRS/2021/058 Index of Abundance of Juvenile Bigeye Tuna in the Atlantic Ocean Derived From Echosounder Buoys Santiago J., and et al. 231-252
SCRS/2021/059 Catch and effort standardization for bigeye tuna (Thunnus obesus) caught in the Chinese Taipei distant-water longline fishery in the Atlantic Ocean Su N.J., W.R. Lin, and W.H. Huang 253-268
SCRS/2021/060 Developing abundance index of bigeye tuna (Thunnus obesus) for the Chinese Taipei longline fishery in the Atlantic Ocean using boosted regression trees Lin W.R., N.J. Su, and W.H. Huang  269-278
SCRS/2021/061 Size composition of bigeye tuna (Thunnus obesus) caught in the Chinese Taipei distant-water longline fishery in the Atlantic Ocean Su N.J., W.H. Huang, and W.R. Lin 279-291
SCRS/2021/062 Catch-per-unit-effort standardization for bigeye (Thunnus obesus) based on Brazilian longline fishery data (1998-2020) Sant’Ana R., B. Mourato, F. Hazin, and P. Travassos 292-302
SCRS/2021/063 Pesquería de patudo o tuna (Thunnus obesus, Lowe 1839) en las Islas Canarias, período 1926 a 2019 Pascual-Alayón P.J., S. Déniz, and F.J. Abascal 303-321
SCRS/2021/064 Introduction to the ICCAT tuna factory purchases data flow and database Bodin N., F. Fiorellato, C. Palma, and C. Mayor 322-334
  • Report of the Bigeye Tuna Stock Assessment meeting
  • Rappport de la réunion d’évaluation du stock de thon obèse
  • Informe de la reunión de evaluación del stock de patudo
SCRS/2021/011 2021 Bigeye Tuna Stock Assessment meeting (Online, 19-29 July 2021)/Réunion d’évaluation du stock de thon obèse (en ligne, 19 au 29 juillet 2021)/Reunión de evaluación del stock de patudo (en línea, 19-29 de julio de 2021) Anon. 335-485
SCRS/2021/131 Datos estadísticos de la pesquería de túnidos de las Islas Canarias durante el periodo 2000 a 2020 Delgado R. 486-498
SCRS/2021/132 Just another Atlantic Bigeye Tuna Stock Assessment: Preliminary Results Using a Bayesian State-Space Surplus Production Model (JABBA) Sant’Ana, R., Mourato, B., Kimoto, A., Ortiz, M. and Winker, H. 499-522
SCRS/2021/148 Temporal trends and variability in the spatial distribution of European tropical tuna purse-seine fishing in the Atlantic and Indian Oceans Kaplan D.M., Báez JC., Pascual-Alayon PJ., and Vidal T. 523-549
SCRS/2021/153 Estimate of the capacity of large-scale purse seiners fishing for tropical tunas in the Atlantic Ocean in 2021 Restrepo VR., Murua H., and Justel-Rubio A. 550-559
SCRS/2021/170 Methodology for the estimation of tuna's catch in local market for the EU purse seine fishery in Atlantic Ocean Duparc A., Amande J., Cauquil P., Floch L., Pascual P., Rojo V., and Yala D. 560-571
SCRS/2021/171 Revision of the time serie of the individual count in size distribution from sampling for the tropical tuna fishery - France Floch L. and Duparc A 572-578
SCRS/2021/172 Statistics of the French purse seine fishing fleet targeting tropical tunas in the Atlantic Ocean (1991-2020) Floch L., Cauquil P., Depetris M., Duparc A., Kaplan D., Lebranchu J., and Yala D. 579-613

 

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  • Report of the First 2021 intersessional meeting of the Bluefin Tuna Species Group (including W-BFT data preparatory)
  • Rapport de la première réunion intersessions de 2021 du groupe d'espèces sur le thon rouge (incluant une réunion de préparation des données sur le thon rouge de l’Ouest)
  • Informe de la primera reunión intersesiones de 2021 del Grupo de especies de atún rojo (que incluye una reunión de preparación de datos sobre atún rojo occidental)
SCRS/2021/003 Report of the First 2021 Intersessional Meeting of the Bluefin Tuna Species Group (including W-BFT data preparatory) (5-13 April 2021)
Rapport de la première réunion intersessions de 2021 du Groupe d'espèces sur le thon rouge (incluant une réunion de préparation des données sur le thon rouge de l’Ouest) (en ligne du 5 au 13 avril 2021)
Informe de la primera reunión intersesiones de 2021 del Grupo de especies de atún rojo (que incluye una reunión de preparación de datos sobre atún rojo occidental) (en línea 5-13 de abril de 2021)
Anon. 1-145
SCRS/2021/018 Further refinements of the BR CMP Butterworth D.S., and Rademeyer R.A.  146-158
SCRS/2021/019 Review of the size distribution of caged eastern bluefin tuna (Thunnus thynnus) in Turkish farms 2014-2020 Ortiz M., Karakulak S., Mayor C., and Paga A. 159-169
SCRS/2021/020 Update of the French aerial abundance index for 2020 and first attempt at accounting for the environmental effects on bluefin tuna availability in the Gulf of Lions Rouyer T., Bal G., Derridj O., and Fromentin J.M. 170-180
SCRS/2021/022 On comparing CMPs across different development tunings and the associated pertinence of OM weighting Butterworth D.S., Rademeyer R.A., and Carruthers T.R. 181-197
SCRS/2021/023 Report of the 2021 ICCAT GBYP workshop on close-kin mark recapture for eastern Atlantic bluefin tuna (Online, 8-9 February 2021) Anon. 198-211
SCRS/2021/024 Report of the 2021 ICCAT GBYP Workshop on Electronic Tagging for Atlantic Bluefin Tuna (Online, 15-16 March 2021) Anon. 212-229
SCRS/2021/025 Updated indicators of relative abundance for bluefin tuna based on revised treatments of the Canadian fisheries data Hanke A.R. 230-249
SCRS/2021/026 An updated index for western bluefin tuna from the US Gulf of Mexico longline fishery Walter J.F. 250-260
SCRS/2021/027 Length frequencies in the Canadian and USA rod and reel fisheries for Atlantic bluefin tuna Maguire J.-J., Hanke A., Duprey N., and Gillepsie K. 261-266
SCRS/2021/028 Training an A.I. CMP for Atlantic bluefin tuna Carruthers T. R. 267-278
SCRS/2021/031 Summary of input data (catch and size) used in the Atlantic bluefin tuna operating models in 2021 Kimoto A., Carruthers T.R., Mayor C., Palma C., and Ortiz M. 279-308
SCRS/2021/032 Mathematical definition and updated progress of the EA cMPs Andonegi E., Arrizabalaga H., Rouyer T., Gordoa A., and Rodriguez-Marín E. 309-322
SCRS/2021/033 Bluefin tuna larval indices in the Balearic Archipelago for the management strategy evaluation (strict update index for 2001-2019) Alvarez-Berastegui D., Tugores M.P., Martín-Quetglas M, Leyva L., and Reglero P. 323-337
SCRS/2021/034 The United States rod and reel smaller sizeclass bluefin tuna (Thunnus thynnus) indices of relative abundance; major revisions and recommendations Lauretta M., Walter J.F., and Brown C. 338-365
SCRS/2021/035 Multinational pelagic longline index of bluefin tuna relative abundance in the Gulf of Mexico. Lauretta M., Ramirez K., Walter J.F., and Brown C. 366-390
SCRS/2021/036 Review of the Gulf of St. Lawrence bluefin tuna acoustic index of abundance Minch T., and Gillespie K. 391-405
SCRS/2021/037 Preliminary analysis of bluefin tuna nominal catch rates by vessel size category and gear type Ortiz M., Gallego J.L., Mayor C., Parrilla A., and Samedy V. 406-422
SCRS/2021/038 Investigation of model improvements for the U.S rod and reel large (>177 cm) Atlantic bluefin tuna index of abundance L. Hansell A., Becker S., Brown C., Cadrin S., Golet W., Lauretta M., Walter J.F., and Kerr 423-437
SCRS/2021/039 Development of a Western large (>177 cm) Atlantic bluefin tuna index of abundance based on Canadian and USA rod and reel fisheries data Hansell A., Hanke A., Becker S., Cadrin S., Lauretta M., Walter J.F., Golet W., and Kerr L. 438-453
SCRS/2021/040 The standardized bluefin CPUE of Japanese longline fishery in the West Atlantic up to 2020 fishing year Tsukahara Y., Fukuda H., and Nakatsuka S. 454-467
SCRS/2021/041 Mathematical description and tuning results of a Candidate Management Procedure (TN_X) for MSE of Atlantic bluefin tuna Tsukahara Y., and Nakatsuka S. 468-476
SCRS/2021/042 Yet further refinements of the BR CMP Butterworth D.S., and Rademeyer R.A. 477-505
SCRS/2021/043 Briefing on the progress of the research activities concerning the growth in farms of bluefin tuna Deguara S., Alemany F., Ortiz M., and Rodriguez-Marin E. 506-511
SCRS/2021/046 Updated CMP results following second round of CMP refinements Carruthers T. R. 512-528
  • Report of the 2021 intersessional meeting of Bluefin Tuna MSE Technical Group (Online, 5-10 July 2021)
  • Rapport de la réunion intersessions du Groupe technique sue ls MSE pour le thon rouge de 2021 (en ligne, 5 - 10 juillet 2021)
  • Informe de la primera reunión intersesiones del Grupo técnico sobre la MSE para el atún rojo de 2021 (en línea , 5- 10 de julio de 2021)
SCRS/2021/010 Report of the 2021 intersessional meeting of Bluefin Tuna MSE Technical Group (Online, 5-10 July 2021) / Rapport de la réunion intersessions du Groupe technique sue ls MSE pour le thon rouge de 2021 (en ligne, 5 - 10 juillet 2021) / Informe de la primera reunión intersesiones del Grupo técnico sobre la MSE para el atún rojo de 2021 (en línea , 5- 10 de julio de 2021) Anon. 529-589
SCRS/2021/121 Refinements of the BR CMP as of July 2021 Butterworth D.S., and Rademeyer R.A.  590-615
SCRS/2021/122 Specifications for ABTMSE management procedures Hanke A.R., and Duprey N. 616-622
SCRS/2021/123 Sensitivity of CMP rankings to conservation targets for Atlantic bluefin tuna Johnson S.D.N., Rossi S.P., and Cox S.P. 623-639
  • Report of the 2021 Western Bluefin Stock Assessment Meeting (Online, 30 August-1 September 2021)
  • Rapport de la réunion d’évaluation du stock de thon rouge de l’Atlantique Ouest de 2021 (en ligne, 30 août - 1er septembre 2021)
  • Informe de la prevaluación de stock de atún rojo del Atlántico oeste de 2021 (en línea , 30 de agosto - 1 de septiembre de 2021)
SCRS/2021/012 Report of the 2021 Western Bluefin Stock Assessment Meeting (Online, 30 August-1 September 2021)/ Rapport de la réunion d’évaluation du stock de thon rouge de l’Atlantique Ouest de 2021 (en ligne, 30 août - 1er septembre 2021)/Informe de la prevaluación de stock de atún rojo del Atlántico oeste de 2021 (en línea , 30 de agosto - 1 de septiembre de 2021) Anon. 640-705
SCRS/2021/139 West Atlantic bluefin tuna Virtual Population Analysis Lauretta M., Kimoto A., Rouyer T., Ortiz M., and Walter J. 706-733
SCRS/2021/140 Western Atlantic bluefin tuna stock assessment 1950-2020 using Stock Synthesis: Part I. Model specification and input data Tsukahara Y., Walter J., Fukuda H., Kimoto A., and Ortiz M. 734-755
SCRS/2021/141 Western Atlantic bluefin tuna stock assessment 1950-2020 using Stock Synthesis: Part II. Model diagnostics, results and projection Tsukahara Y., Walter J., Fukuda H., Kimoto A., and Ortiz M. 756-797
SCRS/2021/143 Short-term constant catch projections for the Atlantic bluefin stocks based on the reconditioned MSE Operating Models  Butterworth D.S., and Rademeyer R.A.  798-805
  • Report of the Second Intersessional Meeting of the Bluefin tuna Species Group (Online, 2-9 September 2021)
  • Rapport de la deuxième réunion intersessions du Groupe d’espèces sur le thon rouge (en ligne, 2- 9 septembre 2021)
  • Informe de la segunda reunión intersesiones del Grupo de especies del atún rojo  (en línea, 2- 9 de septiembre de 2021)
SCRS/2021/013 Report of the Second Intersessional Meeting of the Bluefin tuna Species Group (Online, 2-9 September 2021) / Rapport de la deuxième réunion intersessions du Groupe d’espèces sur le thon rouge (en ligne, 2- 9 septembre 2021) / Informe de la segunda reunión intersesiones del Grupo de especies del atún rojo  (en línea , 2- 9 de septiembre de 2021 Anon. 806-923
SCRS/2021/136 Bluefin tuna (Thunnus Thynnus, linnaeus 1758) spawning in sunny days, some long-distance migrants and several tuna evaders in Sardinian traps Di_Natale A., and Greco G. 924-937
SCRS/2021/137 Calibration of Atlantic bluefin tuna otolith reading conducted by an independent fish ageing laboratory contracted by the ICCAT research programme GBYP Rodriguez-Marin E., Busawon D., Addis P., Allman R.,Bellodi A., Castillo I., Garibaldi F., Karakulak S., Luque P.L.,Parejo A., and Quelle P. 938-952
SCRS/2021/138 ICCAT Atlantic-Wide Research Programme for Bluefin tuna (GBYP) Activity report for Phase 10 and the first part of Phase 11 (2020-2021) Alemany F., Tensek S., and Pagá García A. 953-1005
SCRS/2021/145 Modal Progression Analyses (MPA) to determine BFT seasonal growth rates in farms Alemany F., Pagá A., Deguara S., and Tensek S. 1006-1023
SCRS/2021/146 Review of the size and weight data of Eastern bluefin tuna (Thunnus thynnus) from Portugal trap/farm Lino P.G., Ortiz M., Morikawa H., and Santos M. 1024-1035
SCRS/2021/147 Preliminary results analyses of weight gain of bluefin tuna (Thunnus thynnus) in farms from the farm harvest database 2015 -2020 Ortiz M., Mayor C., and Paga A. 1036-1051
SCRS/2021/150 The BFT technical sub-group on growth in farms status of analysis Anonymous 1052-1058
SCRS/2021/151 The effects of phase-in periods on Atlantic bluefin tuna Candidate Management Procedure performance Johnson S.D.N., and Cox S.P. 1059-1072
SCRS/2021/152 Refinements of the BR CMP as of August 2021 D S Butterworth and R A Rademeyer 1073-1097
SCRS/2021/167 2021 WBFT Stock Assessment results and model diagnostics on the final base case model by Stock Synthesis Tsukahara Y. 1098-1113
SCRS/2021/174 Review of the 2021 West Atlantic Bluefin Tuna Assesment Maunder M. 1114-1124
SCRS/2021/177 Recent trends in bluefin tuna Indices in the West Atlantic Lauretta M., Brown C., and Walter J. 1125-1130

 

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  • Report of the 2021 Intersessional meeting of the Sub-Committee on Ecosystems
  • Rapport de la réunion intersessions du sous-comité des écosystémes 2021
  • Informe de la reunión intersesiones del subcomité de ecosistemas
SCRS/2021/005 Report of the 2021 Intersessional Meeting of the Sub-Committee of Ecosystems (online, 5-7 May 2021)
Rapport de la réunion intersessions du sous-comité des écosystémes 2021 (en ligne du 5 au 7 mai 2021)
Informe de la reunión intersesiones del subcomité de ecosistemas (en línea del 5 al 7 de mayo de 2021)
Anon. 1-63
SCRS/2021/056 Biological Observations of Shortfin Mako Shark (Isurus oxyrinchus) on Spanish Surface Longline Fishery Targeting  Swordfish García-Cortés B., Ramos-Cartelle A., Mejuto J., Carroceda A. and Fernández-Costa J. 64-96
SCRS/2021/067 Les tortues marines en Algérie Benounnas K. 97-104
SCRS/2021/068 Assessment of the Effect of Hook Shape on Fishing Mortality of Multi-Taxa Fish Species Using Experimental Longline Operation Data Ochi D., Ueno S., and Okamoto K. 105-117
SCRS/2021/069 Terms of Reference for Ecocard intersessional work Juan-Jordá M., Andonegi E., Alavarez D., Murua H., Coelho R., Kell L., Báez J., Tsuji S., and Hanke A. 118-121
SCRS/2021/070 Concept note for ICCAT Ecoregion workshop “Identification of regions in the ICCAT convention area for supporting the implementation of ecosystem based fisheries management” Juan-Jordá M., Nieblas A., Murua H., Andonegi E., Kell L., Diaz G., Coelho R., Domingo A., Báez J., and Hanke A. 122-125
SCRS/2021/071 Quasi-Quantitative Risk Assessment Approach to Facilitate Prioritization in Implimenting Ecosystem-Based Approach to Fisheries Management Tsuji S. 126-138
SCRS/2021/074 Depredation of Tunas and Tuna-Like Species by Marine Mammals: Economic Impacts of a Human-Wildlife Interaction LeGallic B., Gourguet S., and Metz S. 139-146
SCRS/2021/079 Modeling the impacts of climate change on global tuna fisheries to support development and implementation of climate adaptive EAFM plans Obregon P., Senina I., Bell J., Nicols S., Scutt Phillips J., Lehodey P., and Kittinge J. 147-154
SCRS/2021/076 Advances on the Collaborative Work to Assess Sea Turtle Bycatch in Pelagic Longline and Purse Seine Fleets (Atlantic and Indian Oceans and Mediterranean Sea) Anonymous 155-166

 

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  • Report of the 2021 Meeting of the Working Group on Stock Assessment Methods
  • Rapport de la réunion de 2021 du Groupe de travail sur les méthodes d'évaluation des stocks
  • Informe de la reunión 2021 del grupo de trabajo sobre métodos de evaluación de stock de ICCAT
SCRS/2021/006 2021 Meeting of the Working Group on Stock Assessment Methods (5-7 May 2021)
Réunion de 2021 du Groupe de travail sur les méthodes d'évaluation des stocks (en ligne du 5 au 7 mai 2021)
Reunión de 2021 del Grupo de trabajo sobre métodos de evaluación de stocks (5 al 7 de mayo de 2021)
Anon. 1-52
SCRS/2021/048 Development of new model fisheries for simulating longline catch data with LLSIM Goodyear C.P. 53-62
SCRS/2021/049 Investigations into spatiotemporal patterns in swordfish habitat distributions Goodyear C.P. 63-118
SCRS/2021/050 Plausibility and uncertainty of basic data and parameter selection on stock assessments: A review of some input data used in the 2017 Assessment of the Shortfin Mako (Isurus oxyrinchus) of the northern Atlantic stock Mejuto J., Fernández-Costa J., Ramos-Cartelle A., and Carroceda  A. 119-170
SCRS/2021/075 A preliminary analysis of spatiotemporal patterns in swordfish habitat distributions Schirripa M.J., Forrestal F., Goodyear C.P., Abascal F., Bubley W., Coelho R., and Hanke A. 171-178
SCRS/2021/078 Testing a bycatch estimation tool using simulated blue marlin longline data Babcock E.A., and Goodyear C.P. 179-189

 

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  • Report of the 2021 Small Tunas Species group Intersessional meeting
  • Rapport de la réunion intersessions de 2021 du Groupe d’espèces sur les thonidés mineurs
  • Informe de la Reunión intersesiones de 2021 del Grupo de especies de pequeños túnidos
SCRS/2021/007 Report of the 2021 Small Tunas Species group Intersessional meeting (online 17-21 May 2021)
Rapport de la réunion intersessions de 2021 du Groupe d’espèces sur les thonidés mineurs (en ligne 17 au 21 mai 2021)
Informe de la Reunión intersesiones de 2021 del Grupo de especies de pequeños túnidos (en línea 17- 21 de mayo de 2021)
Anon. 1-58
SCRS/2021/077 Additional data on the narrow barred Spanish mackerel (Scomberomorus commerson, Lacépède, 1800) in Libya and Palestine Al Mabruk S.A.A., Di Natale A., and Zava B. 59-66
SCRS/2021/081 Etude de quelques paramètres de la biométrie, de la croissance et de l’histologie d’un thonidé mineur ; la thonine commune: Euthynnus alletteratus (Rafinesque, 1810), pêché dans la baie de Mostaganem Benounnas K. 67-79
SCRS/2021/082 Lack of genetic differentiation in the Atlantic distribution of wahoo Ollé J., Pascual-Alayón P.J., Angueko D., Diaha N'G.C., Lucena Frédou F., Silva G., and Viñas J. 80-85
SCRS/2021/085 Protocol for sampling, preparing and storing of first dorsal fin spine for small tuna species: a first step for ageing analysis Muñoz-Lechuga R., and Lino P.G. 86-92
SCRS/2021/086 Updated life history parameters and estimates of spawning potential ratio for frigate tuna Auxis thazard stock in the northeast Atlantic Zapadaeva N. 93-102
SCRS/2021/118 Final report of the short-term contract for ICCAT SMTYP for the biological samples collection for growth, maturity and genetics studies – Year #3 Frédou F.L., Hazin F., Viñas J., Ollé J., Hajjej G., Macias D., Saber S.,  Pascual-Alayón P.J., Lino P.G., Muñoz-Lechuga R., Ahmed Baibbat S., Ngom Sow F., Constance Diaha N'G., Angueko D.,  Silva G., Massa-Gallucci A. 103-131

 

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  • Report of the 2021 ICCAT Intersessional Meeting of the Swordfish Species Group
  • Rapport de la réunion intersessions de l’ICCAT de 2021 du Groupe d’espèces sur l’espadon
  • Informe de la reunión intersesiones de 2021 del grupo de especies de pez espada
SCRS/2021/008 2021 Intersessional Meeting of the Swordfish Species Group (Online, 31 May to 7 June 2021)
Réunion intersessions de 2021 du groupe d'espèces sur l’espadon (en ligne, 31 mai- 7 juin 2021)
Reunión intersesiones de 2021 del grupo de especies de pez espada (En línea, 31 de mayo al 7 de junio de 2021)
Anon. 1-85
SCRS/2021/017 Curvy? How an unconventional measuring system adopted by observers can bias the scientific understanding in Mediterranean swordfish (Xiphias gladius L. 1758) and in the ICCAT database Di Natale A. and Garibaldi F. 86-97
SCRS/2021/087 Updated standardized catch rates for the North Atlantic stock of swordfish (Xiphias gladius) from the Spanish surface longline fleet for the period 1986-2019 Ramos-Cartelle A., Fernández-Costa J., García-Cortés  B., and Mejuto J. 98-110
SCRS/2021/088 Updated standardized catch rates for the South Atlantic stock of swordfish (Xiphias gladius) from the Spanish surface longline fleet for the period 1989-2019 Ramos-Cartelle A., Fernández-Costa J., García-Cortés  B., and Mejuto J. 111-121
SCRS/2021/089 Standerdized age-specific catch rates in number of fish for the North Atlantic swordfish (Xiphias gladius) inferred from data of the Spanish longline fleet during the period 1982-2019 Mejuto J., García-Cortés  B., Ramos-Cartelle A., and Fernández-Costa J. 122-141
SCRS/2021/092 Is the Swordfish slowly returning into the Black Sea? Recent evidences Di Natale A. 142-152
SCRS/2021/093 Larval habitats and catches of swordfish (Xiphias gladius) in the Balearic Islands (2001-2020): oceanographic drivers and opportunities for research Tugores M.P., Alvarez-Berastegui D., Macías D., Martín M., Torres A.P., Leyva L., Ortiz de Urbina J.M., Balbín R., and Reglero P. 153-168
SCRS/2021/094 From Objectives to Candidate Performance Indicators for NSWO MSE Taylor N.G., Gillespie K., Miller S., Kimoto A., and Coelho R. 169-178
SCRS/2021/095 Biological samples of swordfish (Xiphias gladius) collected by observers from the Chinese Taipei longline fishery in the Atlantic Ocean during 2019-2020 Su N-J., Shiu Y-W., and Cheng C-Y. 179-188
SCRS/2021/096 Size composition of swordfish (Xiphias gladius) caught in the Chinese Taipei longline fishery in the Atlantic Ocean Su N-J., Cheng C-Y., and Shiu Y-W. 189-197
SCRS/2021/097 Peer review of the North Atlantic swordfish management strategy evaluation (MSE) code and algorithms Anonymous 198-229
SCRS/2021/098 An evaluation of data weighting for the ICCAT northern swordfish management strategy evaluation Schirripa M.J., Rosa D., and Hordyk A. 230-239
SCRS/2021/099 Updates to the operating model uncertainty grid for the north Atlantic swordfish MSE Hordyk A., Schirripa M., and Rosa D. 240-261
SCRS/2021/100 Summary of fits to CPUE indices for the updated north Atlantic swordfish operating model uncertainty grid Hordyk A. 262-277
SCRS/2021/119 Final report for phase three of the ICCAT short-term contract: swordfish biological samples collection for growth, reproduction and genetics studies Gillespie K., Hanke A., Coelho R., Rosa D., Carnevali O., Gioacchini G.,and Macias D. 278-309
SCRS/2021/161 Evaluation of the performance of some candidate management procedures to prioritize the key uncertainties in the North Atlantic swordfish operating models Hordyk, A. 310-324
SCRS/2021/162 Changes made to the North Atlantic swordfish management strategy evaluation code and algorithms in response to the recommendations of the peer review Hordyk, A. 325-330

 

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  • Report of the albacore Species Group intersessional meeting
  • Rapport de la réunion intersessions du Groupe d’espèces sur le Germon
  • Informe de la reunión intersesiones del Grupo de especies de atún blanco
SCRS/2021/009 Report of the intersessional meeting of the Albacore Species Group (including Med-ALB stock assessment) (Online, 21- 30 June 2021) / Rapport de la réunion intersessions du Groupe d’espèces sur le germon incluant l’évaluation du stock de germon de la Méditerranée (En ligne, 21-30 juin 2021)/ Informe de la reunión intersesiones del Grupo de especies de atún blanco, Incluida la evaluación del stock de atún blanco del Mediterráneo (En línea, 21-30 de junio de 2021) Anon. 1-101
SCRS/2021/102 Standardized catch rates of albacore (Thunnus alalunga Bonnaterre, 1788) in the Spanish surface longline fishery in the western Mediterranean in the period 2009-2019 García-Barcelona S., Macías D., Saber S., Gómez-Vives M.J., Rioja P., Meléndez M.J., and Ortiz de Urbina J. 102-111
SCRS/2021/103 Standardized catch rates of albacore (Thunnus alalunga Bonnaterre, 1788) in the Spanish recreational fishery in the western Mediterranean in the period 2005-2019 Saber S., Macías D., García-Barcelona S., Meléndez M.J., Gómez-Vives M.J., Rioja P., Godoy D., Puerto M.A., and Ortiz de Urbina J. 112-116
SCRS/2021/104 Standardized catch per unit of effort of albacore (Thunnus alalunga)  in the northeast Atlantic from the Spanish baitboat fleet for period: 1981-2019 Ortiz de Zárate V. and Ortiz M. 117-127
SCRS/2021/105 Review and preliminary analyses of size-frequency samples of Mediterranean albacore tuna (Thunnus alalunga) Ortiz M., Mayor C., and Palma C. 128-137
SCRS/2021/106 Use of ALKs (Age Length Keys) of North Atlantic albacore (Thunnus alalunga) for assessment purposes Ortiz de Zárate V. and Castillo I. 138-149
SCRS/2021/107 Spanish albacore (Thunnus alalunga) surface fishery in the northeastern Atlantic, summary description in 2019 Ortiz de Zárate V. and Parejo A. 150-157
SCRS/2021/108 Standardization of albacore CPUE for South Atlantic core area by the Japanese longline fishery Matsumoto T., Tsuda Y., and Matsubara N. 158-171
SCRS/2021/109 Review of size data for North Atlantic albacore by Japanese longline fishery Matsumoto T. 172-181
SCRS/2021/110 Unusual length frequencies in Mediterranean albacore (Thunnus alalunga) in 2019 and 2020 Di Natale A. 182-194
SCRS/2021/111 Standardization of CPUE for North Atlantic Albacore by the Japanese Longline Fishery from 1959 to 2019 Matsubara N., Aoki Y., Tsuda Y., and Matsumoto T. 195-209
SCRS/2021/112 Standardized indices of albacore, Thunnus alalunga, from the United States pelagic longline fishery Lauretta M.V. 210-224
SCRS/2021/114 Updated standardized CPUE of albacore tuna (Thunnus alalunga) caught in the Chinese Taipei tuna longline fishery in the North Atlantic Ocean to 2020 Cheng C.Y., Su N.K., and Shiu Y.W. 225-234
SCRS/2021/115 Standardized albacore catch rates from italian drifting longline fisheries Pinto C., Mariani A., Camolese C., Dell’Aquila M., Di Natale A., Mangano A., Valastro M., Deflorio M., and Garibaldi F. 235-244
SCRS/2021/116 Preliminary stock assessment of mediterranean albacore (Thunnus alalunga) using the Bayesian State-Space Surplus Production Model JABBA Winker H., Pinto C., and Kimoto A. 245-277
SCRS/2021/117 Assessing the spawning stock biomass of albacore (Thunnus alalunga) in the western Mediterranean Sea from a Non-Linear Larval Index (2001-2019) Alvarez-Berastegui D., Tugores M.P., Martín M.,Leyva L., Balbín R.,  Saber S., Macías D., Ortiz de Urbina J., and Reglero P. 278-295
SCRS/2021/090 Examination of Data Available for Developing a Benchmark Assessment and Operating Models for North Atlantic Albacore Merino G., Urtizbere A., Laborda A., and Arrizabalaga H. 296 - 320
SCRS/2021/149 Updated results of the albacore (Thunnus alalunga) reproductive biology study for the North Atlantic stock Ortiz de Zárate V., Macias D., Arocha F., Castillo I., Su N.J., and Dheerai B. 321-337

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SCRS/2021/160 Summary of data from the United Kingdom recreational porbeagle fishery from 1960-2020 Jones G., Alsop A., Chapman R.S., Collings M., Davis P., Faisey K.A., Forester M., Hodder L., Howell A., Malia O., Margetts D., McKie K.A., McMaster J.D., Murphy S., Rogers J., Somerfield P.J., West D., Whittaker P., Wright S., Wyatt K., Uren D., and Thomas S.F. 1-15
SCRS/2021/166 Validation of Alternative Stock Assessment Hypotheses: North Atlantic Shortfin Mako Shark. Kell L. 16-62

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SCRS/2021/159 The non-compliance with the UN agreement of straddling fish stocks by non-ICCAT CPC and impact on ICCAT statistics Di Natale A. 1-4
SCRS/2021/165 Report of the sub-group on electronic monitoring systems from the Billfish Species Group Anon. 5-9

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SCRS/2021/029 Summary of the Atlantic bluefin tuna MSE poll for plausibility weighting Kimoto A., and Walter J.F.
SCRS/2021/030 Notes from the BFT CMP developers webinar in March 2021 Walter J.F.
SCRS/2021/044 Recommendations of the BFT Technical sub-group on abundance indices for West Atlantic bluefin tuna Anon.
SCRS/2021/045 Interannual variability in the larval survival of bluefin tuna (Thunnus thynnus) in the Western Mediterranean spawning ground during 1990-2020 Reglero P., Tugores P., Balbín R., Alvarez-Berastegui D., and Øyvind F.
SCRS/2021/047 Atlantic bluefin tuna MSE topics for consideration and decision Butterworth D.S., and Carruthers T.R.
SCRS/2021/057 Sex-ratio du thon obèse Thunnus obesus (Lowé, 1839) capturé dans l’océan Atlantique et débarqué au port de pêche d’Abidjan Doffou Y.C., N. C. Diaha, M.J. Amandè, M. Guillou, M. Lesage, and P. Coquille
SCRS/2021/065 Validation of alternative stock assessment hypotheses: North Atlantic shortfin mako shark Kell L.
SCRS/2021/066 Effects of fishing gear configurations on target, desirable bycatch and unwanted bycatch species Santos C., Rosa D., and Coelho R.
SCRS/2021/072 The effect of terminal gear modifications on the total mortality of the shortfin mako, Isurus oxyrinchus Keller B.A., Reinhardt J.F., Swimmer Y., and Brown C.A.
SCRS/2021/073 The Jelly-FAD: a paradigm shift in bio-FAD design. Moreno G., Salvador J., Murua H., Uranga J., Zudaire I., Grande M., Murua J., and Restrepo V.
SCRS/2021/080 3D printing of pelagic shark fins for use as a training and compliance tool Bürgener, M., Louw, S., da Silva, C.
SCRS/2021/083 From data mining to the stock assessment of the SW Atlantic wahoo Acanthocybium solandri Cardoso L.G., Frédou T., Hazin F., Travassos P., Sant’Anna R., Mourato B., Silva G., Cope J., Pons M., Cardoso C., Soares A., Barreto T., and Lucena-Frédou F.
SCRS/2021/084 The southward expansion of the distribution and fishing grounds of blackfin tuna Thunnus atlanticus in the southwestern Atlantic Ocean due to increasing water temperatures Cardoso L.G., Sant'anna R., Freire M.A., Weigert F.C., Poubel M., and Bezzerra N.
SCRS/2021/091 Review of the size and weight data of Eastern bluefin tuna (Thunnus Thynnus) from Portugal trap/farm REPLACED BY SCRS/2021/146 Ortiz M., Santos M, and Lino P.
SCRS/2021/101 Use of ALKs (Age Length Keys) of north Atlantic Albacore (Thunnus alalunga) for assessment purposes DUPLICATED WITH 106/ REMOVED 101 Ortiz de Zarate V., and I. Castillo
SCRS/2021/113 Review and Preliminary Analyses of size samples of Atlantic bigeye tuna (Thunnus obesus) Ortiz M., and Kimoto A.
SCRS/2021/118 Final report of the Short-term contract for iccat SMTYP for the biological samples collection for growth, maturity and genetics studies – Year #3 Anonymous
SCRS/2021/120 Stock assessment for atlantic bigeye using a biomass production model Merino G., Urtizberea A., Santiago J., and Laborda A.
SCRS/2021/124 Overview of Atlantic bluefin tuna Operating Model reconditioning data and results Carruthers T. R.
SCRS/2021/125 Overview of Robustness OM specification and conditioning Carruthers T. R.
SCRS/2021/126 A ‘Model-based’ multistock CMP for Atlantic bluefin tuna based on an efficient state-space surplus production assessment model Carruthers T. R.
SCRS/2021/127 A reconfigured a multi-stock spatial management procedure for Atlantic bluefin tuna following Operating Model reconditioning Carruthers T. R.
SCRS/2021/128 A retrained A.I. CMP for Atlantic bluefin tuna following Operating Model reconditioning Carruthers T. R.
SCRS/2021/129 Ad-hoc weighting for Operating Model #35: ‘does it matter’ analysis Carruthers T. R.
SCRS/2021/130 A summary of preliminary candidate management procedure performance for the reconditioned reference grid Operating Models Carruthers T. R.
SCRS/2021/132 Just another Atlantic Bigeye Tuna Stock Assessment: Preliminary Results Using A Bayesian State-Space Surplus Production Model (JABBA) Sant’Ana, R., Mourato, B., Kimoto, A., Ortiz, M. and Winker, H.
SCRS/2021/133 Estimation of Ghana Tasks 1 and 2 purse seine and baitboat catch 2012 – 2020: data input 2021 Bigeye Tuna Stock Assessment Ortiz M., Carlos P., Aviyi S., and Bannerman P.
SCRS/2021/134 Atlantic bigeye tuna Stock Synthesis Analyses Lauretta M., Schirripa M., Die D., Hiroki Y., Kimoto A., Norelli A., Okamoto K., Ortiz M., Satoh K., Takayuki M., and Urtizberea A.
SCRS/2021/135 Summary and review of the FOB/FADs deployed ST08-FADsDEP ICCAT database 2011-2019. Ortiz M., and Mayor C.
SCRS/2021/142 Bluefin CPUE time series of the Balfegó purse seine joint fishing fleet from 2003 to 2021 and the new operational protocol implemented in 2021 Gordoa, A., and Navarro, J.
SCRS/2021/144 Tuna Ocean Restocking (TOR) pilot study – long-term growth rates and food conversion ratios in Atlantic bluefin tuna broodstock in captivity Bridges C.R., Borutta F, Schulz S., Na’amnieh S., Vassallo-Agius R., Psaila M., and Ellul S.
SCRS/2021/154 A proposal for a Blim for Atlantic bluefin tuna Andonegi E., and Walter J.
SCRS/2021/155 Atlantic bluefin tuna constant harvest rate and index-based Candidate Management Procedures; tuning to ABT_MSE package 7.3.1 Peterson C., Lauretta M., and Walter J.
SCRS/2021/156 Comparing deterministic and stochastic results of two Candidate Management Procedures developed for the bluefin tuna Management Strategy Evaluation Duprey N., and Hanke A.
SCRS/2021/157 Automated BFT growth monitoring in cages from a ventral perspective Muñoz-Benavent P., Puig-Pons V., Morillo-Faro A., Andreu-García G., Espinosa V., and Pérez-Arjona I.
SCRS/2021/158 Biomass estimation of spawing Atlantic bluefin tuna (Thunnus thynnus) schools using omnidirectional fisheries sonars Peña H., Puig-Pons V., Espinosa V., Macaulay G.J., and Pérez-Arjona I.
SCRS/2021/163 Mitogenomics and nuclear-genome-wide single-nucleotide polymorphism genotyping can resolve the complex reality of the genetic population structure of shortfin mako (Isurus oxyrinchus) in the Atlantic Ocean Semba Y.
SCRS/2021/164 A time and a place: examining the potential for time-area closures to reduce shortfin mako bycatch in ICCAT fisheries Farrugia T.
SCRS/2021/168 Lessons learned and recommendations from the Atlantic Ocean tropical tuna tagging program (AOTTP) – evidence-based approach for sustainable management of tuna resources in the Atlantic Beare D., Garcia J., Naulaerts J., Wright S., Ngom F., Diaha C., Goñi N., Chifflet M., Onandia I., Norman S., Parker D., Pascual P., and Ailloud L.
SCRS/2021/169 Size conversion factors and length/weight relationships for Mediterranean swordfish caught by Italian longline fleet operating in the Mediterranean Sea Pappalardo, L., Coco, O., Baiata, P., Alessandra, R., Pignalosa, P.
SCRS/2021/173 Biodegradable dFADS: current status and prospects Zudaire I., G Moreno , J Murua, H Murua, MT Tolotti, M Roman, M Hall, J Lopez, M Grande, G Merino, L Escalle, P Hamer, OC Basurko, MJ Suárez, M Capello, L Dagorn, ML Ramos, FJ Abascal, JC Báez, PJ Pascual-Alayón, S Déniz, and J Santiago
SCRS/2021/176 Report of the 2021 ICCAT swordfish biology workshop Anonymous