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1. Informing the Working Group on Fish Stock Assessment about the revisions of the WSMPA proposal

   and the EU has submitted a revised CM proposal to CCAMLR 2018. This document is based on similar ... documents submitted to WG SAM 2018 and the CCAMLR Workshop on Spatial Management (WS-SM-18). It intends to ... : Unifying the previously two separate WSMPA parts into one coherent WSMPA by closing the gap on the eastern ... effects of harvesting on Antarctic marine living resources and for achieving the WSMPA specific objectives ...

   Meeting Document : WG-FSA-18/08 Rev. 1 : Autor(es): S. Hain, K. Teschke, H. Pehlke and T. Brey on behalf of the German Weddell Sea MPA project team

2. Effects of orientation on acoustic scattering from Antarctic krill at 120 kHz

   collected per animal. Orientation data were recorded on video. The acoustic data were analyzed and target ... strengths determined from each echo. A method was developed for estimating the three-dimensional orientation ... of the krill based on the video images and was applied to five of them, giving their target strengths ... as functions of orientation. Scattering models based on a simplified distorted-wave Born ...

   Meeting Document : WG-EMM-99/42 : Autor(es): D.E. McGehee (USA), R.L. O’Driscoll (New Zealand) and L.V. Martin Traykovski (USA)

3. A perspective on steepness, reference points, and stock assessment

   Abstract:  We provide a perspective on steepness, reference points for fishery management, and ... construct a prior for steepness. Ways out of the difficult situation raised by fixing steepness and life ... these patterns. For the production model, we derive explicit relationships for steepness and life ... history parameters and then for steepness and major reference points. For the age-structured model, we are ...

   Meeting Document : WG-FSA-14/P05 : Autor(es): M. Mangel, A.D. MacCall, J. Brodziak, E.J. Dick, R.E. Forrest, R. Pourzand and S. Ralston

4. Preliminary results of the experiments on the krill transport study in the South Orkney area (April 1992)

   based on these values. In the.first two dublicates the aggregation of krill was observed within the ... within the square of 30 x 30 miles northwestwards of Coronation Island in the fishing fleet operation ... dublicates of perimeter were made. Control hauls with midwater trawl were made on the regular basis. The ... water flow and geostrophic currents. The balance of krill input and output for the square was calculated ...

   Meeting Document : WG-CEMP-92/34 : Autor(es): L.G. Maklygin, V.N. Shnar, A.P. Malyshko (Russian Federation) and A.G. Shepelev (Ukraine)

5. Adélie penguin colony size predicts south polar skua abundance on Ross Island, Antarctica

   carrion. We estimated skua abundance at Adélie penguin colonies on Ross Island in two consecutive years ... near Adélie penguin (Pygoscelis adeliae) colonies, feeding on fish, penguin eggs and chicks, and ... and tested for a relationship between these estimates and penguin colony sizes. We used distance ... sampling to estimate numbers of skuas and skua breeding pairs (based on nests), at five penguin nesting ...

   Meeting Document : WG-EMM-14/55 : Autor(es): D.J. Wilson, P.O’B. Lyver (New Zealand), A.L. Whitehead (Australia), T.C. Greene (New Zealand), K. Dugger (USA), B.J. Karl, J.R.F. Barringer, R. McGarry (New Zealand), A.M. Pollard and D.G. Ainley (USA)

6. A preliminary assessment of mackerel icefish (Champsocephalus gunnari) in Division 58.5.2, based on results from the 2013 random stratified trawl survey

   both abundance and biomass. Two scenarios for harvest are presented – a typical two year projection of ... icefish population structure, abundance and yield for the area of Division 58.5.2 to the west of 79° 20’ E ... the population, and a projection accounting for the fact that the abundant 3+ year class is likely to ... be unavailable beyond 2013/14. Under the first scenario, a catch limit of 764 t is recommended for ...

   Meeting Document : WG-FSA-13/23 : Autor(es): D.C. Welsford (Australia)

7. Measurements of sound-speed and density contrasts of Antarctic krill (Euphausia superba) on board RV Kaiyo Maru

   an acoustical scattering model, information on size, morphology, orientation, sound–speed and mass ... -density contrasts between the animal and the surrounding water are required. Sound-speed and mass-density ... -speed and density contrasts of Antarctic krill (Euphausia superba) on board RV Kaiyo Maru Approval ...

   Meeting Document : WG-EMM-08/56 Rev. 1 : Autor(es): Y. Takao, H. Yasuma, R. Matsukura, K. Amakasu and M. Naganobu (Japan)

8. Developing robust biomass estimates and advice on catch limits in research blocks

   that improves on the original CPUE by seabed area method for toothfish populations in research blocks ... together in an integrated statistical to provide robust estimates of biomass in research blocks. Author(s ... Scientific Committee requested that the changes to the methods be reviewed, that scientific rational for the ... relationship between CPUE and fish density in the Ross Sea reference area for the first time. The resulting ...

   Meeting Document : WG-SAM-17/37 : Autor(es): S.J. Parker, S. Mormede, A. Dunn, S.M. Hanchet and C. Marsh

9. Preliminary report on the South Orkneys Ecosystem Studies (SOES) field work undertaken by RRS James Clark Ross (JR15004) and associated field camps in January–February 2016

   formed a key component of the co-ordinated, multi-national South Orkney Ecosystems Studies focusing on ... 2015-16. The research cruise consisted of collection of at-sea data on the distribution, abundance and ... vessel and field camps on Monroe Island, Powell Island and at Signy where satellite tracking of penguins ... and fur seals was undertaken. Taken together these data sets and the expected outputs will provide key ...

   Meeting Document : WG-EMM-16/19 : Autor(es): J. Watkins, O.R. Godø, S. Fielding, C. Reiss, P. Trathan and E. Murphy

10. Proposals on standardization of toothfish resource research

    efforts  by years and research blocks  do not allow obtaining scientific-based  data for understanding the ... discussed in the context of discussion at the Scientific Committee and the CCAMLR Commission in 2018 ... accompanied by standard procedures for trawl adjusting and monitoring of its parameters. These procedures are ... mandatory for all ships participating in the survey. At the same time, methodological aspects of the multi ...

    Meeting Document : WG-SAM-2019/34 : Autor(es): S. Kasatkina

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