Aller au contenu principal

    WG-SAM-18

    Full Name
    Groupe de travail sur les statistiques, les évaluations et la modélisation
    Lieu:
    Norwich, Royaume-Uni
    Date/heure de début de réunion:
    Date/heure de fin de réunion:
    Dates limites de soumission
    lundi 11 juin 2018 à 00:00 Australie/Hobart (Document de groupe de travail)
    Rapport de la réunion:
    f-sc-xxxvii-a6.pdf (794.69 Ko)

      Documents

      Numéro du document Titre Point(s) de l'ordre du jour
      SC-CAMLR-XXXVII/01
      Plus d'infos
      Rapport des coresponsables de l'atelier CCAMLR pour l'élaboration d'une hypothèse sur la population de Dissostichus mawsoni de la zone 48 (du 19 au 21 février 2018, Berlin, Allemagne)
      Coresponsables : Chris Darby (Royaume-Uni) et Christopher Jones (États-Unis)
      6.1
      SC-CAMLR-XXXVII/02 Rev. 1
      Plus d'infos
      Rapport de synthèse Examen de l'évaluation des stocks de légine indépendant de la CCAMLR (18–22 juin 2018, Norwich, Royaume-Uni)
      3
      WG-SAM-18/01
      Plus d'infos
      Predicting fishing ground accessibility in the Antarctic Weddell Sea
      H. Pehlke, K. Teschke and T. Brey
      6.1
      WG-SAM-18/02
      Plus d'infos
      Research plan for the 2018/19 exploratory longline fishery of D. mawsoni in Subarea 48.6 by Spain
      Delegation of Spain
      6.1
      WG-SAM-18/03
      Plus d'infos
      Continuation proposal of a multi-Member longline survey on Patagonian toothfish (Dissostichus eleginoides) in Division 58.4.4b in 2018/19 by Japan and France
      Delegations of Japan and France
      6.2
      WG-SAM-18/04
      Plus d'infos
      Proposed continuation of a multi-Member longline survey on Antarctic toothfish (Dissostichus mawsoni) in Statistical Subarea 48.6 in 2018/19 by Japan and South Africa
      Delegations of Japan and South Africa
      6.1
      WG-SAM-18/05
      Plus d'infos
      Progress report on the joint research for Dissostichus spp. in Subarea 88.3 by the Republic of Korea and New Zealand and notification of research in 2018/19
      Delegations of the Republic of Korea and New Zealand
      6.3
      WG-SAM-18/06
      Plus d'infos
      Research program on study of life cycle, species compositions, biology and resource potential of craboids (Anomura, Decapoda) in the Pacific Ocean Antarctic Area in 2018–2021 by Russian Federation
      Delegation of the Russian Federation
      6.3
      WG-SAM-18/07
      Plus d'infos
      Research program to examine the life cycle and resource potential of Dissostichus species in the Special Research Zone within the Ross Sea region marine protected area (RSRMPA) in 2018–2027 by Russian Federation
      Delegation of the Russian Federation
      6.3
      WG-SAM-18/08
      Plus d'infos
      Continuation of multi-Member research on the Dissostichus eleginoides exploratory fishery in 2018/19 in Division 58.4.3a by France and Japan
      Delegations of France and Japan
      6.2
      WG-SAM-18/09
      Plus d'infos
      Notification for scientific research in 2019/20 under CM 24-01: Proposal for a winter longline survey of Antarctic toothfish in the northern region of Subareas 88.1 and 88.2
      Delegation of New Zealand
      6.3
      WG-SAM-18/10
      Plus d'infos
      Results of the seventh Ross Sea shelf survey to monitor abundance of Antarctic toothfish in the southern Ross Sea, January 2018, and notification for research in 2018/19
      D. Stevens, X. Fu, S. Mormede and S. Parker
      6.3
      WG-SAM-18/11
      Plus d'infos
      Plan of research program of the Ukraine in Subarea 48.1 in 2019
      Delegation of Ukraine
      6.1
      WG-SAM-18/12
      Plus d'infos
      Plan of research program of the Ukraine in Subarea 88.3 in 2019
      Delegation of Ukraine
      6.3
      WG-SAM-18/13
      Plus d'infos
      Proposal for continuation of the Ukrainian research survey in Subarea 48.2 in 2018/19 season (fifth year of research)
      Delegation of Ukraine
      6.1
      WG-SAM-18/14
      Plus d'infos
      Introducing Casal2 for toothfish stock assessments
      S. Mormede
      3
      WG-SAM-18/15
      Plus d'infos
      Outline for year 3 of the 3-year longline survey to determine toothfish population connectivity between Subareas 48.2 and 48.4
      M. Söffker and M. Belchier
      6.1
      WG-SAM-18/16
      Plus d'infos
      Informing and seeking advice from WG-SAM-18 about the revisions of the WSMPA proposal
      S. Hain, K. Teschke, H. Pehlke and T. Brey
      8
      WG-SAM-18/17
      Plus d'infos
      Draft proposal for multi-Member research on the Dissostichus mawsoni exploratory fishery in East Antarctica (Divisions 58.4.1 and 58.4.2) from 2018/19 to 2021/22
      Delegations of Australia, France, Japan, Republic of Korea and Spain
      6.2
      WG-SAM-18/18
      Plus d'infos
      A photographic reference set for Antarctic toothfish (Dissostichus mawsoni) from the Ross Sea region
      C. Sutton and S. Parker
      5
      WG-SAM-18/19
      Plus d'infos
      Research concept on catchability to study toothfish abundance/stocks in the Antarctic marine areas
      K. Demianenko, L. Pshenichnov, O. Diripasko and V. Gurianov
      5
      WG-SAM-18/20
      Plus d'infos
      Results of a scientific electronic monitoring pilot study on the FV Janas during the 2017/18 Ross Sea fishing season
      B. Plum, A. Smith and S. Parker
      5
      WG-SAM-18/21
      Plus d'infos
      Guidelines for fisheries-directed research addressing the Ross Sea region Marine Protected Area Research and Monitoring Plan
      S. Parker and A. Dunn
      6.3
      WG-SAM-18/22
      Plus d'infos
      Monitoring and managing the effects of environmental change on toothfish assessments
      M. Pinkerton, A. Dunn, S. Mormede and S. Parker
      3
      WG-SAM-18/23
      Plus d'infos
      Simulating performance of trend analysis for setting catch limits in exploratory toothfish research plans
      S. Hoyle, S. Parker, A. Dunn and S. Mormede
      4
      WG-SAM-18/24
      Plus d'infos
      Short review of the procedure for realisation of the fish tagging program on vessels of Ukraine in the season 2017/18
      Delegation of Ukraine
      5
      WG-SAM-18/25
      Plus d'infos
      Cruise Report – Research Project: Demersal finfish distribution, abundance, and their biological characteristics in Statistical Subareas 48.1 (northern area) and 48.2
      Delegation of Chile
      6.1
      WG-SAM-18/26
      Plus d'infos
      The preliminary report on the survey for Dissostichus spp. in Subarea 48.2, season 2017/18
      Delegation of Chile
      6.1
      WG-SAM-18/27
      Plus d'infos
      Preliminary results of oceanological research of Ukrainian vessels in the CCAMLR area for the season 2017/18
      V. Paramonov
      5
      WG-SAM-18/28
      Plus d'infos
      The preliminary report on the survey in Subarea 48.2 in 2018 (the fourth year of the planned 5-year-old investigations)
      Delegation of Ukraine
      6.1
      WG-SAM-18/29
      Plus d'infos
      Information report on the age determination methods of toothfish Dissostichus spp.
      I.V. Slypko and P.M. Zabroda
      5
      WG-SAM-18/30
      Plus d'infos
      Preliminary results from the second year of a three-year survey into the connectivity of toothfish species in Subareas 48.2 and 48.4
      M. Söffker, K. Olsson and M. Belchier
      6.1
      WG-SAM-18/31
      Plus d'infos
      Annual report of research fishing operations at Division 58.4.4b in 2016/17 fishing season
      Delegations of Japan and France
      6.2
      WG-SAM-18/32
      Plus d'infos
      Annual report of research fishing operations at Subarea 48.6 in 2016/17 fishing season
      Delegations of Japan and South Africa
      6.1
      WG-SAM-18/33 Rev. 1
      Plus d'infos
      Annex to WS-DmPH-18 report: Towards the development of a stock hypothesis for Antarctic toothfish (Dissostichus mawsoni) in Area 48
      M. Söffker, A. Riley, M. Belchier, K. Teschke, H. Pehlke, S. Somhlaba, J. Graham, T. Namba, C.D. van der Lingen, T. Okuda, C. Darby, O.T. Albert, O.A. Bergstad, P. Brtnik, J. Caccavo, A. Capurro, C. Dorey, L. Ghigliotti, S. Hain, C. Jones, S. Kasatkina, M. La Mesa, D. Marichev, E. Molloy, C. Papetti, L. Pshenichnov, K. Reid, M.M. Santos and D. Welsford
      6.1
      WG-SAM-18/34
      Plus d'infos
      Diagnostic tools for Champsocephalus gunnari stock assessments
      D. Maschette, T. Earl and R. Sinègre
      3
      WG-SAM-18/35 Rev. 1
      Plus d'infos
      Joint report on exploratory fishing in Divisions 58.4.1 and 58.4.2 between the 2011/12 and 2017/18 fishing seasons
      Delegations of Australia, France, Japan, Republic of Korea and Spain
      6.2
      WG-SAM-18/P01
      Plus d'infos
      Casal2: New Zealand’s integrated population modelling tool
      I. Doonan, K. Large, A. Dunn, S. Rasmussen, C. Marsh and S. Mormede
      3

      Ordre du jour

      Développer Commentaires | Développer Document | Réduire

      1     Introduction

      The Scientific Committee established the Working Group on Statistics, Assessments and Modelling (WG-SAM) during CCAMLR-XXV (SC-CAMLR-XXV, paragraph 13.12), with a directed emphasis on developing, refining and evaluating quantitative approaches for all Antarctic marine living resources managed by CCAMLR. WG-SAM serves as a flexible technical group to address quantitative issues relevant to WG-FSA, WG-EMM and ad hoc WG-IMAF (SC-CAMLR-XXV, paragraphs 13.4 to 13.8). WG-SAM is to provide advice necessary for the work of these working groups and the Scientific Committee.

      Although focus topics are prioritised by the Scientific Committee, submitted meeting papers, along with presentations and analyses conducted during the meeting, will form the basis for discussion and advice.

      The terms of reference for WG-SAM are:

      To provide advice to the Scientific Committee and its working groups on:

      1. Quantitative assessment methods, statistical procedures and modelling approaches for the conservation of Antarctic marine living resources; and
      2. The implementation and data requirements of such methods, procedures and approaches.

      In 2017, the Scientific Committee developed a 5-year work plan (SC-CAMLR-XXXVI/BG/40) and identified topics for WG-SAM in 2018 of:

      Theme     Topic
      Assessments to estimate sustainable yield in established/assessed fisheries    

      (i)    Development of methodologies to implement Management strategy evaluations (MSE) of CCAMLR’s harvest decision rules for target species

      (ii)    Consideration of spatial population models (including multiple area models) for toothfish

      (iii)    Development of indicators of fishery performance and stock status for non-assessment years

      Development of management advice consistent with Article II for fisheries with more limited data    

      (iv)    Tag-based biomass estimation, spatial distribution and the transition from research blocks to assessment at broader geographic scale

      (v)    Division 58.4 research synthesis and evaluation

      (vi)    Review and evaluation of research proposals and results in all data limited fisheries

      (vii)    Development of MSE for ‘trend analysis rules’

      Data acquisition and management    

      (viii)    Development of standard diagnostic tools and code to evaluate fishery structure, data inputs and performance of integrated stock assessment models

      (ix)    Development of data weighting procedures

      2     Opening of the meeting

      Welcome to participants and overview of facilities, Secretariat’s offices, computer support, Internet access and extracurricular activities.

      2.1     Adoption of the agenda and organisation of the meeting

      Amendments to, and adoption of, the meeting agenda, assignment of meeting papers to agenda items, appointment of rapporteurs and procedures for the preparation of the report and establishment of ad hoc subgroups if necessary.

      3     Assessments to estimate sustainable yield in established/assessed fisheries

      The Working Group will review new and modified stock assessment models under development to provide management advice.

      In addition, specific issues related to existing assessments will be considered if papers are submitted describing indicators of fishery performance and stock status that could be reported between assessments (SC-CAMLR-XXXVI, Annex 7, paragraph 3.22) or the effects of selectivity assumptions on cryptic biomass, including in relation to maturity proportions at age (SC-CAMLR-XXXVI, Annex 7, paragraph 3.52).

      The Working Group will consider an update of the stock assessment methods review conducted in the week prior to WG-SAM-18 from the Convener of the meeting with the understanding that the report from the meeting would subsequently be available for review and comment by WG-FSA-18 and the Scientific Committee.

      4     Development of management advice consistent with Article II for fisheries with more limited data

      In data-poor fisheries, discussion at WG-FSA developed a new method for setting catch limits based on analysis of time trends in biomass estimates. The Scientific Committee requested further intersessional work to develop a better understanding of the expected performance of trend analysis rules in setting catch limits these fisheries (SC-CAMLR-XXXVI, paragraph 3.78 and SC-CAMLR-XXXVI, Annex 7, paragraph 4.37).

      5     Data acquisition and management

      The Working Group will consider further development of diagnostic plots and information targeted especially at Champsocephalus gunnari assessments (SC-CAMLR-XXXVI, Annex 7, paragraph 3.14).

      The Working Group will also consider additional work submitted to further understand characterisitics of different gear types and how these characterisitics may affect the interpretation, standardiation and use of data collected from the fishery (SC-CAMLR-XXXVI, Annex 7,  paragraph 4.20).

      6     Review of research plan proposals and results

      A requirement to submit research plans in notifications for exploratory fisheries for Dissostichus spp. in Area 48 and Subareas 58.4 was developed in 2011 (CM 21-02, SC-CAMLR-XXX, paragraphs 2.4 to 2.6; CAMLR-XXX, paragraph 12.33). There are currently two standing agenda items for WG-SAM to review these plans and plans for research conducted under CM 24-01 (SC-CAMLR-XXXI, paragraphs 2.5 and 2.6; SC-CAMLR-XXX, paragraphs 15.3):

      1. review of research plans from Members notifying to fish in exploratory fisheries in Ara 48 and Subareas 58.4.
      2. review of research proposals for closed areas, areas with zero catch limits and other areas not included in (i).

      Proposals to conduct research in subareas other than Subareas 48.6 or 58.4 (e.g. areas with zero catch limits, closed areas or Subareas 88.1 or 88.2), are proposed under CM 24-01 and reviewed by WG-SAM to evaluate if the proposed research design is appropriate to the objectives of the research, including reviewing the results from previous research proposals as they may influence design considerations.

      Research plans and proposals should follow the generic advice developed in SC-CAMLR-XXXVI, Annex 7, paragraphs 4.14 to 4.18 and the milestones in SC-CAMLR-XXXVI, Annex 7, Table 2.

      The scientific Committee workplan also indicated that following progress made in Subarea 48.6 with a focus group on stock structure, that a focus topic of stock strcutre in Divisions 58.4.1 and 58.4.2 to integrate data and further develop the stock hypothesis there would be useful (SC-CAMLR-XXXVI, Annex 7, paragraphs 4.135 and 4.137).

      The report from the workshop on Dissostichus mawsoni population hypothesis (WS-DmPH) will be reviewed relative to the research proposals submitted for Subarea 48.

      6.1     Proposals and research results from Area 48
      SC-CAMLR-XXXVII/01 Rapport des coresponsables de l'atelier CCAMLR pour l'élaboration d'une hypothèse sur la population de Dissostichus mawsoni de la zone 48 (du 19 au 21 février 2018, Berlin, Allemagne)
      Coresponsables : Chris Darby (Royaume-Uni) et Christopher Jones (États-Unis)
      WG-SAM-18/01 Predicting fishing ground accessibility in the Antarctic Weddell Sea
      H. Pehlke, K. Teschke and T. Brey
      WG-SAM-18/02 Research plan for the 2018/19 exploratory longline fishery of D. mawsoni in Subarea 48.6 by Spain
      Delegation of Spain
      WG-SAM-18/04 Proposed continuation of a multi-Member longline survey on Antarctic toothfish (Dissostichus mawsoni) in Statistical Subarea 48.6 in 2018/19 by Japan and South Africa
      Delegations of Japan and South Africa
      WG-SAM-18/11 Plan of research program of the Ukraine in Subarea 48.1 in 2019
      Delegation of Ukraine
      WG-SAM-18/13 Proposal for continuation of the Ukrainian research survey in Subarea 48.2 in 2018/19 season (fifth year of research)
      Delegation of Ukraine
      WG-SAM-18/15 Outline for year 3 of the 3-year longline survey to determine toothfish population connectivity between Subareas 48.2 and 48.4
      M. Söffker and M. Belchier
      WG-SAM-18/25 Cruise Report – Research Project: Demersal finfish distribution, abundance, and their biological characteristics in Statistical Subareas 48.1 (northern area) and 48.2
      Delegation of Chile
      WG-SAM-18/26 The preliminary report on the survey for Dissostichus spp. in Subarea 48.2, season 2017/18
      Delegation of Chile
      WG-SAM-18/28 The preliminary report on the survey in Subarea 48.2 in 2018 (the fourth year of the planned 5-year-old investigations)
      Delegation of Ukraine
      WG-SAM-18/30 Preliminary results from the second year of a three-year survey into the connectivity of toothfish species in Subareas 48.2 and 48.4
      M. Söffker, K. Olsson and M. Belchier
      WG-SAM-18/32 Annual report of research fishing operations at Subarea 48.6 in 2016/17 fishing season
      Delegations of Japan and South Africa
      WG-SAM-18/33 Rev. 1 Annex to WS-DmPH-18 report: Towards the development of a stock hypothesis for Antarctic toothfish (Dissostichus mawsoni) in Area 48
      M. Söffker, A. Riley, M. Belchier, K. Teschke, H. Pehlke, S. Somhlaba, J. Graham, T. Namba, C.D. van der Lingen, T. Okuda, C. Darby, O.T. Albert, O.A. Bergstad, P. Brtnik, J. Caccavo, A. Capurro, C. Dorey, L. Ghigliotti, S. Hain, C. Jones, S. Kasatkina, M. La Mesa, D. Marichev, E. Molloy, C. Papetti, L. Pshenichnov, K. Reid, M.M. Santos and D. Welsford
      6.1.1     Proposals and research results from Subarea 48.1
      6.1.2     Proposals and research results from Subareas 48.2 and 48.4
      6.1.3     Proposals and research results from Subarea 48.6
      6.2.1     Proposals and research results from Division 58.4.1
      6.2.2     Proposals and research results from Division 58.4.2
      6.2.3     Proposals and research results from Division 58.4.3
      6.2.4     Proposals and research results from Division 58.4.4
      6.3     Review of research proposals and results for other areas
      6.3.1     Review of research proposals and results for Subarea 88.1
      6.3.2     Review of research proposals and results for Subarea 88.2
      6.3.3     Review of research proposals and results for Subarea 88.3
      7     Future work

      The Working Group will identify a prioritised list of topics to provide to the Scientific Committee for consideration in updating the work plan.

      8     Other business
      9     Advice to the Scientific Committee

      WG-SAM provides advice to each of the working groups and to the Scientific Committee on statistics, assessments and modelling. Specific advice that has been requested will be summarised in this agenda item following general discussion in other agenda items. Advice will also be given to the Scientific Committee on the priorities discussed during the meeting for the development and refinement of quantitative methods.

      10     Adoption of report and close of meeting

      As is usual practice in meetings of the Scientific Committee and its working groups, rapporteurs will draft sections of the report according to general guidelines for its production. The Secretariat is responsible for formatting, editing and circulation of the report. Any proposed changes to the report prior to report adoption need to be arranged through the rapporteurs or the Convener using the web-based document management system. Adoption of the report will be conducted interactively.

      Discussion will conclude by mid-day Thursday, allowing Thursday afternoon and evening for report preparation and reading. Report adoption will be on Friday morning.

      Retour haut de page

      © Copyright - Commission for the Conservation of Antarctic Marine Living Resources 2021, All rights reserved.

      Site by Eighty Options