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1. An update on the development of a management procedure for the toothfish (Dissostichus eleginoides) resource in the Prince Edward Islands vicinity

   Abstract:  Two Operating Models (OMs) reflecting an “Optimistic” and a “Pessimistic” current ... a constant future catch suggest that the two scenarios will only be qualitatively distinguished in ... for the “Pessimistic”, but not the “Optimistic” case. Accordingly the performance of a simple MP ... to secure a faster increase in the TAC for the “Optimistic” case, and some recovery in abundance for ...

   Meeting Document : WG-FSA-SAM-06/12 : Автор(ы): A. Brandão and D.S. Butterworth (South Africa)

2. A updated population status model for the Patagonian toothfish, Dissostichus eleginoides, at Kerguelen Islands (Division 58.5.1) using CASAL

   Abstract:  A stock assessment of the Patagonian toothfish (Dissostichus eleginoides) at Kerguelen ... -length data... CASAL is a simple, single-sex, single-area population model. The spatial complexity in the ... . Commercial catch are integrated in the model by CCAMLR season. A weighted combination of datasets was ... . The biomass long-term projection, done for the Patagonian toothfish with a simulated 5,100 tons catch ...

   Meeting Document : WG-FSA-12/09 : Автор(ы): A. Rélot-Stirnemann (France)

3. A preliminary assessment of mackerel icefish (Champsocephalus gunnari) in Division 58.5.2, based on recent survey results

   vicinity of Heard Island during April-May 2011. This paper provides a preliminary assessment of mackerel ... ’ E using standard CCAMLR methods. A pattern of 5 year classes being present simultaneously in the ... population, which was first detected in 2011, has persisted, however a large cohort of fish, estimated to be ... 2+, dominate the population in both abundance and biomass. A new length weight model is estimated ...

   Meeting Document : WG-FSA-12/26 : Автор(ы): D.C. Welsford (Australia)

4. A review of conversion factors used in CCAMLR toothfish fisheries

   be required to better understand the sources of this variability. The results suggest that a ... reconciliation between the reported catch for a vessel and the weight of product reported in a catch document ... submitted to the CDS should be based on a conversion of the ‘green weight’ for each haul in the C2 data to a ... ):  CCAMLR Secretariat Title:  A review of conversion factors used in CCAMLR toothfish fisheries Approval ...

   Meeting Document : WG-FSA-15/02 : Автор(ы): CCAMLR Secretariat

5. A representative system of CCAMLR MPAs: taking stock and moving forward

   the CCAMLR MPA designation process started over a decade earlier. Additional MPAs will demonstrate ... that the Ross Sea MPA designation was not a one-off for CCAMLR, but rather one important step in ... establishing a representative system of MPAs in the Convention Area. This paper provides an overview of the ... progress made by CCAMLR toward establishing a representative system of MPAs in the Southern Ocean ...

   Meeting Document : CCAMLR-XXXVI/BG/25 Rev. 2 : Автор(ы): Submitted by ASOC

6. Proposal for a krill biomass survey for krill monitoring and management in CCAMLR Division 58.4.2-East

   Abstract:  Australia plans to conduct a krill biomass survey in Division 58.4.2 East during 23 ... January to 25 March 2021. The survey will estimate krill biomass with a view to update the precautionary ... catch limit for krill. A krill observatory mooring system will also be deployed during the survey to ... and predators. A deeper understanding of all these factors will support the design of a tractable and ...

   Meeting Document : WG-EMM-2019/03 : Автор(ы): S. Kawaguchi, M. Cox, N. Kelly, L. Emmerson and D. Welsford

7. A first attempt at an assessment of the Patagonian toothfish (Dissostichus eleginoides) resource in the Prince Edward Islands EEZ

   reviewed briefly. It is characterised by very large illegal catches and a sharply declining longline CPUE ... trend. Application of a simple age-structured production model provides robust indication that the ... spawning biomass has been depleted to at most a few percent only of its pre-exploitation level. Projections ... are discussed. Author(s):  A. Brandão, B.P. Watkins, D.S. Butterworth and D.G.M. Miller (South Africa ...

   Meeting Document : WG-FSA-01/54 : Автор(ы): A. Brandão, B.P. Watkins, D.S. Butterworth and D.G.M. Miller (South Africa)

8. A preliminary model-based approach for estimating natural mortality of Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea Region

   Abstract:  Natural mortality (M) is a key parameter in fisheries stock assessments, relating ... directly to the productivity of a stock, stock status, and estimated precautionary yields. In the Ross Sea ... the stock assessment model. We undertake a preliminary investigation of estimating natural mortality ... using the assessment model from the Ross Sea region from 2017. We estimated natural mortality as a ...

   Meeting Document : WG-SAM-2019/04 : Автор(ы): B. Moore, S. Mormede, S. Parker and A. Dunn

9. A characterisation of the toothfish fishery in Subareas 88.1 and 88.2 from 1997/98 to 2005/06

   nine years in Subarea 88.1 and for five years in Subarea 88.2 with a large amount of data collected on ... fished. The 2006 D. mawsoni catch was the second highest on record with a total of 3388 t against a ... . The management of the SSRUs within the two subareas was changed for the 2006 season as part of a 3 ... catch limit being slightly exceeded in the 2006 season. Concentration of effort within a smaller spatial ...

   Meeting Document : WG-FSA-06/29 : Автор(ы): S.M. Hanchet, M.L. Stevenson and A. Dunn (New Zealand)

10. Developing a carbon-budget trophic model of the Ross Sea, Antarctica: work in progress

    Abstract:  We report on the development of a carbon-budget trophic-model of the Ross Sea. We ... column, ice, and benthic). The simple trophic model requires well over a hundred parameters, each of ... explicit assumptions. The model is not complete, and should be considered a work in progress. A trial ... budget was created to quantify carbon flow through our conceptual model of the Ross Sea ecosystem. A ...

    Meeting Document : WG-EMM-05/18 : Автор(ы): M. Pinkerton, S. Hanchet, J. Bradford-Grieve and P. Wilson (New Zealand)

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