Résultats de la recherche

1. Progress report on the research fishery for Dissostichus spp. in Subarea 48.6 being jointly undertaken by Japan and South Africa: 2012/13 and 2013/14

   Abstract:  Japan and South Africa are undertaking a multi-year research plan in Statistical ... Dissostichus resource in Subarea 48.6 to be undertaken next year. Concern is expressed over the rise of IUU ... Subarea 48.6 as outlined in CM 41-04 (2012 & 2013). Progress achieved during the 2012/13 season is ... activity in Subarea 48.6 and the possible negative consequences for the Research being undertaken. Author(s ...

   Meeting Document : WG-SAM-14/10 : Auteur(s): R. Leslie (South Africa), K. Taki, T. Ichii (Japan) and S. Somhlaba (South Africa)

2. A single-area stock assessment model of Antarctic toothfish (Dissostichus mawsoni) in SSRU 88.2E for the 2004/05 season

   model for Antarctic toothfish (Dissostichus mawsoni) in SSRU 88.2E. The model structure was assumed to ... be the same as used for the Antarctic toothfish in the Ross Sea (see Dunn et al. 2005b), except that ... some evidence of non-convergence, particular in the declining right-hand limb of the fishing ... maturity ogive, there was a significant biomass of mature, but ‘invulnerable’ fish in the projection period ...

   Meeting Document : WG-FSA-05/31 : Auteur(s): A. Dunn, D.J. Gilbert and S.M. Hanchet (New Zealand)

3. Quantifying vessel performance in the CCAMLR tagging program: spatially and temporally controlled measures of relative mortality and tag-detection rates

   CCAMLR of a number of toothfish fisheries in Antarctica, but the evaluation of tagging performance has ... detection rate of recaptured fish. This method was applied to the tagging data in CCAMLR Subareas 88.1 and ... 88.2. Results show that the indices developed can provide evidence of significant differences in ... indices are robust to the choice of the control group and the area included in the analysis, as well as ...

   Meeting Document : WG-FSA-12/47 Rev. 1 : Auteur(s): S. Mormede and A. Dunn (New Zealand)

4. Development of a spatially-explicit minimum realistic model for Antarctic toothfish (Dissostichus mawsoni) and its main prey (Macrouridae and Channichthyidae) in the Ross Sea

   predation mortality (M2), in addition to fishing mortality (F) on all three species. The model suggests that ... fishing mortality on both prey species and that icefish is expected to show a larger increase in biomass ... Holling type II function to describe the predatory relationships in the model. We use the model to compare ... of the nature of the interaction. Whilst this model is in a development stage, it provides a useful ...

   Meeting Document : WG-EMM-14/51 : Auteur(s): S. Mormede, M. Pinkerton, A. Dunn, S. Hanchet and S. Parker (New Zealand)

5. Precautionary management of the Antarctic krill fishery at small spatial scales in the context of regional climate variability: pros and cons of coastal buffers, closed areas and move-on rules

   Abstract:  In this paper, we briefly review recent environmental information for the Antarctic ... Peninsula, highlighting how both natural variability in near-surface air temperatures and longer term ... changes in the oceanic domain add to the complexity of managing the Antarctic krill fishery, particularly ... , mortality events were observed. Fishing in close proximity to some colonies also occurred and it is ...

   Meeting Document : SC-CAMLR-XXXV/BG/14 : Auteur(s): Delegation of the United Kingdom

6. Results of 2016 pop-off satellite archival tagging of Antarctic toothfish in the Ross Sea region

   Abstract:  In 2016, scientists from the USA and New Zealand undertook a collaborative initiative ... were released on the southern Ross Sea shelf in the austral summer, and 5 PSAT tags were released on ... the northern seamounts in the austral winter, for a total of 15 PSAT releases. Of the 10 PSAT releases ... in the southern Ross Sea, data from two tags were reported via Argos (one with full data, one with ...

   Meeting Document : WG-SAM-17/33 : Auteur(s): C.D. Jones and S.J. Parker

7. Spatial distribution of predator/prey interactions in the Scotia Sea: implications for measuring predator/fisheries overlap

   for Antarctic krill Euphausia superba in the South Shetland Islands have used different measurement ... the CCAMLR 2000 krill survey were used to identify the areas of potential overlap with fisheries in ... overlap. Despite distinct differences in foraging ecology a group of krill-dependent species including ... -specific differences in the characteristic scales which were of the order of 50- 100 km. Antarctic krill ...

   Meeting Document : WG-EMM-02/14 : Auteur(s): K. Reid, M. Sims, R.W. White and K.W. Gillon (United Kingdom)

8. Technical procedure for retrieval and handling of unidentified fishing gear in the Convention Area

   Abstract:  In response to a request from the Commission and Scientific Committee, the Secretariat ... vessels which encounter unidentified fishing gear in the Convention Area. The work is summarised, and the ... draft guidelines, which were published to the CCAMLR e-group in 2019. Author(s):  CCAMLR Secretariat ... Title:  Technical procedure for retrieval and handling of unidentified fishing gear in the Convention ...

   Meeting Document : CCAMLR-38/BG/17 Rev. 1 : Auteur(s): CCAMLR Secretariat

9. The case for including the Ross Sea continental shelf and slope in a Southern Ocean network of marine protected areas

   ) meeting in South Africa this year. The Antarctic and Southern Ocean Coalition (ASOC) proposes, in part ... the regions recognized by CCAMLR through the bioregionalisation process in 2008, and by the Antarctic ... Organization’s (UNESCO) World Heritage Sites. The Ross Sea is of high global importance in terms of its ... et al. 2008). If protected it would be the highest latitude habitat represented in a comprehensive ...

   Meeting Document : CCAMLR-XXIX/BG/26 : Auteur(s): ASOC Observer

10. Revised assessment models for Patagonian toothfish in research block C of Division 58.4.4, Ob and Lena Banks

    assessments of Dissostichus eleginoides in research block C in Division 58.4.4 b following the recommendation ... models on the assumption that 22 % of IUU catch to the total observed across Division 58.4.4 occurred in ... were set as follows: parameters for ALK (k, Linf and t0) were fixed; year class strength (YCS) was ... IUU catch for both size- and age structured models. The age structured models were higher in each kind ...

    Meeting Document : WG-FSA-14/23 : Auteur(s): K. Taki (Japan)

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