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1. Sensitivity analysis identifies high influence sites for estimates of penguin krill consumption on the Antarctic Peninsula

   identify 14 breeding colonies that contribute most significantly to uncertainty regarding the total number ... of pygoscelid penguins breeding in this region. We find that a high quality survey of Zavodovski ... at these sites should be considered top priority for future field work in the region. Our results are ... based on a robust quantitative method for assessing data priorities in estimating krill consumption that ...

   Meeting Document : WG-EMM-12/P02 : Autor(es): H.J. Lynch, N. Ratcliffe, J. Passmore, E. Foster and P. N. Trathan

2. Finfish research proposals for Subarea 48.6 by Koryo Maru 11 for 2012/13 (this is a revision of WG-SAM-12/12)

   draws on the results presented by OLRAC-SPS (2012) and addresses knowledge gaps highlighted by that ... analysis.  The preliminary assessment indicates that the historic precautionary maximum catch limit of 200 ... that the historic precautionary maximum catch limit of 200 tonnes of Dissostichus spp. for Subarea 48.6 ... south of 60°S may be sustainable.  Therefore the historic maximum catch limits are assumed for this ...

   Meeting Document : WG-FSA-12/30 : Autor(es): C. Heiniken and R. Ball (South Africa)

3. Estimating uncertainty in local biomass estimates of toothfish in CCAMLR in Subareas 58.4 and 48.6 research blocks

   differences in Antarctic toothfish biomass estimates using the two different methods suggests that the ... underlying assumptions currently made in one or both of the methods are likely to be invalid. We recommend ... that Working Group consider reviewing assumptions in the CPUE-by-seabed area and the Chapman biomass ... estimation methods at the Research Block scale and prioritise resolving issues in Research Blocks that show ...

   Meeting Document : WG-SAM-17/12 : Autor(es): L. Robinson, P. Burch and K. Reid

4. Towards an assessment of the stock of the ommastrephid squid Martialia hyadesi in the Scotia Sea: data from predators

   annual catches and frequent switches to exploit new target species. It is likely, therefore, that ... exploitation of the sub-Antarctic ommastrephid species Martialia hyadesi will be attempted in the future. This ... be estimated but it may be relatively small unless they primarily consume post-spawning, moribund ... squid. At least for the albatrosses and southern elephant seal this does not appear to be the case ...

   Meeting Document : SC-CAMLR-IX/BG/13 : Autor(es): Delegation of United Kingdom

5. THE DIET OF THE ANTARCTIC TOOTHFISH IN THE ROSS SEA

   genera. It can be concluded that D. mawsoni is a generalized piscivorous predator that feeds primarily in ... southwestern Ross Sea indicates that fishes, especially Pleuragramma antarcticum, and mysids dominate the diet ... 88.1 that reflects the abundance of various species of prey fish within the shelf, slope and oceanic ...

   Meeting Document : WG-EMM-09/16 : Autor(es): J.T. Eastman and A.L. DeVries (USA)

6. Development of foraging behaviour and evidence of extended parental care in the gentoo penguin (Pygoscelis papua)

   with extended parental provisioning, behaviours not observed in other Pygoscelis species. Chicks took ... sea. Trip duration increased significantly with chick age as trips to sea becoming more similar to ... adult foraging trips in both timing and duration. Behavioural observations confirmed that many chicks ... were still being fed during this fledging period, with parental feeding behaviours most often observed ...

   Meeting Document : WG-EMM-06/8 : Autor(es): M. Polito and W.Z. Trivelpiece (USA)

7. Genetic structuring of Patagonian toothfish populations in the southwest Atlantic Ocean: the effect of the Antarctic Polar Front and deep-water troughs as barriers to genetic exchange

   species with potential for high dispersal are of great interest, not only from an evolutionary standpoint ... but also with regard to effective management. Previous genetic studies have demonstrated substantial ... these data indicate that the APF, as a barrier to larval dispersal, is the major inhibitor of genetic ... exchange between toothfish populations, with deep-water troughs and distance between sites contributing to ...

   Meeting Document : WG-FSA-04/21 : Autor(es): P.W. Shaw, A.I. Arkhipkin and H. Al-Khairulla (United Kingdom)

8. Stones in toothfish stomachs: an unusual source of geological information from closed regions of Antarctic shelf and slope

   respect, Dissostichus mawsoni may be considered as a «dredge» with a wide area of sampling. Preliminary ... stones may be used for geological description of the closed areas of Antarctic shelf and slope. In this ...

   Meeting Document : WG-FSA-07/58 : Autor(es): N.V. Kokorin, D.S. Klucharev and M.A. Sukhoruchenkov (Russia)

9. Estimates of circumpolar abundance of Antarctic krill based on recent acoustic density measurements

   tonnes- at the low end of values that have been suggested in the past. The differences between our ... estimates and others can be explained by a number of factors such as: an underestimation of the range or the ... value used in the past. The seasonal and local consequences of large catch limits will have to be taken ... statistical divisions as management areas will have to be considered. File:  05nicol-etal.pdf ... that have been suggested in the past. The differences between our estimates and others can be ... result, and that the stratified krill biomass estimates may be similarly realistic, particularly for ... swarms. Underwater photographs of subsurface aggregations of krill reveal that they can be closely ... indicate that the calculated precautionary catch limit is likely to be higher than the current 1.5 ...

   Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 87–99 : Autor(es): Nicol, S., A.J. Constable and T. Pauly

10. Use of the Leslie stock depletion model for the assessment of local abundance of Patagonian toothfish (Dissostichus eleginoides)

    presents a re-working and synthesis of previous analyses to examine whether declines in CPUE can be ... in localised areas for periods of at least three days. The results suggest that there is greater ... consistent signal in the data for the depletion model to be used to estimate local abundance. A number of ... size, and that this reduction would be indicated by a significant decline in an abundance index with ... vessels which overlapped with the series being analysed. Note that no detailed position information was ... the analysis, even though it is possible that some of these may have overlapped with the selected ... total catch taken over time t and M is natural mortality. This assumes that there is no recruitment to ...

    Science Journal Paper : CCAMLR Science, Volume 3 (CCAMLR Science, Volume 3) : 55–77 : Autor(es): Parkes, G., C.A. Moreno, G. Pilling and Z. Young

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