Full Name
Working Group on Statistics, Assessments and Modelling
Lugar:
Kochi, India
Fecha y hora del inicio de la reunión:
Fecha y hora del fin de la reunión:
Plazo de presentación
lunes, 12 junio, 2023 - 09:00 Australia/Hobart (Documento de grupo de trabajo)
Informe de la reunión:
s-sc-42-a05.pdf
(657.69 KB)
Documentos de reunión
Agenda
Agenda
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1 Introduction
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1.1 Opening of the meeting
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1.2 Adoption of the Agenda
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2 Review of the terms of reference and workplan
Comentarios(/Resúmenes)
The Working Group will review the Terms of Reference (See SC-CAMLR-41, Annex 10 and the workplan set out in SC-CAMLR-41, Table 6).
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3 Development of methods to estimate biomass for krill
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3.1 Data collection needs and standards
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3.1.1 Effective sampling to estimate length frequency distribution
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| WG-SAM-2022/27 | Methodical aspects of measuring the selectivity of gears in krill fishery S. Sergeev and S. Kasatkina |
| WG-SAM-2023/19 | On the issue of gear selectivity in relation to krill in the current CCAMLR topics S. Sergeev and S. Kasatkina |
4 Develop stock assessments to implement decision rules for krill
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4.1 Development of integrated stock assessment for krill
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| WG-SAM-2023/25 | Casal2 assessment for Antarctic krill in Subarea 48.1: a pilot model D. Kinzey and G.M. Watters |
5 Develop methods to estimate biomass for finfish
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5.1 Research plan design
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5.1.1 Gear standardisation effects on toothfish tagging program
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5.1.2 Development of toolbox for research plan design
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5.2 Data collection needs
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| WG-SAM-2023/18 | Tag-overlap statistic calculation method CCAMLR Secretariat |
5.2.1 Develop protocol for toothfish conversion factor sampling
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5.2.2 Tag recapture reconciliation issues
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6 Develop stock assessments to implement decision rules for finfish
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6.1 Develop new methods for stock assessments
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| WG-SAM-2023/09 | An update of tag loss rates for Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea J.A. Devine |
| WG-SAM-2023/11 | Development of methods to use age-based tag-release and tag-recapture data in the assessment model of Ross Sea region Antarctic toothfish (Dissostichus mawsoni) A. Grüss, S. Mormede, A. Dunn and J.A. Devine |
| WG-SAM-2023/13 | Risk assessment for the Antarctic starry skate (Amblyraja georgiana) in the Ross Sea B. Finucci, J.A. Devine, S.J. Holmes and M.H. Pinkerton |
| WG-SAM-2023/14 | A generalised additive mixed modelling framework to determine the probability that a sampled macrourid is either Macrourus caml or M. whitsoni in the Ross Sea region: Methods and preliminary results B.R. Moore, A. Grüss and M.H. Pinkerton |
| WG-SAM-2023/15 | Comparison of growth estimation methods for Patagonian toothfish in South Georgia (Subarea 48.3) J.E. Marsh, T. Earl, P. Hollyman and C. Darby |
6.2 Draft integrated stock assessments in Casal2
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6.3 Trend analysis rule development
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6.4 Diagnostic summaries of stock status
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7 Management strategy evaluations for target species
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7.1 Evaluation of the CCAMLR decision rules and potential alternative harvest control rules for assessed fisheries
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7.1.1 Development of an operating model
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7.1.2 Management strategy evaluation (MSE)
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7.1.2.1 Develop operating model for data-limited toothfish fisheries
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8 Review of new research proposals
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8.1 New proposals under CM 21-02
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8.2 New proposals under CM 24-01
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9 Review of ongoing research plan results and proposals
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9.1 Research results and proposals from Area 48
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| WG-SAM-2023/01 Rev. 1 | Continuation of the Research on Antarctic toothfish (Dissostichus mawsoni) in Statistical Subarea 48.6 in 2023/24 from a multiyear plan (2021/22–2023/24): Research Plan under CM 21-02, paragraph 6(iii) Delegations of Japan, South Africa and Spain |
| WG-SAM-2023/21 | Tentative research topics to contribute to the research on Dissostichus mawsoni in Subarea 48.6 from 2024/25 to 2026/27; Research plan under CM21-02, paragraph 6(iii) Delegation of the Republic of Korea |
| WG-SAM-2023/22 | Progress report of the acoustic trawl survey Champsocephalus gunnari in Statistical Subarea 48.2 in 2023 Delegation of Ukraine |
| WG-SAM-2023/24 | 2023 updated analysis of the sea-ice concentration in research blocks 4(RB4) and 5(RB5) of Subarea 48.6 with sea-surface temperature and winds and statistical analysis of repeated accessibility T. Namba, R. Sarralde, K Teschke, H. Pehlke, T. Brey, S. Hain, T. Okuda, S. Somhlaba and J. Pompert |
9.2 Research results and proposals from Area 58
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| WG-SAM-2023/03 | Continuing research in the Dissostichus mawsoni exploratory fishery in East Antarctica (Divisions 58.4.1 and 58.4.2) from 2022/23 to 2025/26; Research plan under CM21-02, paragraph 6(iii) Delegations of Australia, France, Japan, Republic of Korea and Spain |
9.3 Research results and proposals from Area 88
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10 Ecosystem monitoring
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10.1 Structured ecosystem monitoring programs
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10.2 Effective sample size for fish bycatch monitoring in the krill fishery
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11 Future work
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12 Other business
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13 Advice to the Scientific Committee
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14 Adoption of report and close of meeting