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1. Effect of orientation on broadband acoustic scattering of Antarctic krill Euphausia superba: implications for inverting zooplankton spectral acoustic signatures for angle of orientation

   and video footage from several Antarctic krill were carried out to determine the effect of animal ... Classification (CMVC) approach, using generic and animal-specific theoretical and empirical model spaces ... . The animal-specific empirical model space was best able to invert for angle of orientation. The CMVC ... footage from several Antarctic krill were carried out to determine the effect of animal orientation ...

   Meeting Document : WG-EMM-99/41 : Author(s): L.V. Martin Traykovski (USA), R.L. O’Driscoll (New Zealand) and D.E. McGehee (USA)

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

   Cruz, CA. Individual animals were suspended in front of the transducers, were only loosely constrained ... collected per animal. Orientation data were recorded on video. The acoustic data were analyzed and target ... ) method were developed for five animals and compared with the measurements. Both measured and modeled ... scattering patterns showed that 120 kHz acoustic scattering levels are highly dependent on animal orientation ...

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

3. Time series of Antarctic krill estimates around the South Shetland Islands from 2013 to 2019

   during the last 6 years, increased from 20.22 g m-2 in December 2013 to 70.13 g m-2 in February 2019 ... the last 6 years, increased from 20.22 g m-2 in December 2013 to 70.13 g m-2 in February 2019. ... . Distribution of Antarctic krill for the 2013/14 to 2015/16 and the 2017/18 to 2018/19 fishing seasons were ... krill for the 2013/14 to 2015/16 and the 2017/18 to 2018/19 fishing seasons were mapped by the Chinese ...

   Meeting Document : SG-ASAM-2019/04 Rev. 1 : Author(s): X. Yu, X. Wang, X. Zhao, J. Zhang, G. Fan, Y. Ying and J. Zhu

4. Aspects of the distribution and interannual variations in larval fish assemblages at South Georgia, Antarctica

   of fish populations from over-exploitation by commerical-scale fin-fisheries over the past 30 years ... -exploitation by commerical-scale fin-fisheries over the past 30 years. ... life histories as pelagic larval and juvenile phases. Only 30 larval stages of the 103 fish species ... important forms. The larval stages occur in succession throughout the year suggesting niche separation ...

   Meeting Document : WG-FSA-93/09 : Author(s): M.G. White (United Kingdom)

5. Modelling egg and larval transport of Antarctic toothfish (Dissostichus mawsoni) in the East Antarctic region: preliminary result using satellite data

   eddy activity) covering 2011-2018, we developed the particle tracking model to investigate egg ... 2-year simulation.  From the result of the BB region, while strong self retention on the BB was observed ... to the nursery areas in about 3 months-2 years by different local oceanic dynamics. Author(s):  M. Mori ... activity) covering 2011-2018, we developed the particle tracking model to investigate egg and larval ...

   Meeting Document : WG-FSA-2019/63 : Author(s): M. Mori, K. Mizobata, T. Okuda and T. Ichii

6. Status of krill target strength

   in single-animal measurements, namely thresholding. Theoretical estimates for the target strength ... of target strength on both animal size and transmit frequency, notwithstanding admitted shortcomings. Some ... recent single-animal measurements of target strength for live euphausiids and euphausiid-re1ated ... in single-animal measurements, namely thresholding. Theoretical estimates for the target strength ...

   Meeting Document : WG-KRILL-92/11 : Author(s): K.G. Foote (Norway), D. Chu and T.K. Stanton (USA)

7. Demography of Antarctic krill in the Elephant Island area (Antarctic Peninsula) during austral summer 2001

   , and the absolute index was RI1 = 131.4 * 1000 m-3, which is among the highest values for the past 20 years ... index was RI1 = 131.4 * 1000 m-3 , which is among the highest values for the past 20 years. The high ... of small size classes, one year old juvenile krill was found. Krill density was significantly higher than ... during the past years (between 198 and 230 krill 1000 m-3, i.e. between 40 and 46 m-2 or 11.3 ...

   Meeting Document : WG-EMM-01/10 : Author(s): V. Siegel (Germany), B. Bergström (Sweden), U. Mühlenhardt-Siegel (Germany) and M. Thomasson (Sweden)

8. Use of a population model to assess the impact of longline fishing on wandering albatross populations

   at a rate of 2.29% per year, which concurs with global population trends. Sensitivity analyses of model ... , there is a time lag of 5-10 years before further decreases in population numbers are reflected in the breeding ... population. Also, because wandering albatrosses are long-lived, population growth rates take approximately 30 ... -50 years to stabilize after a perturbation. Consequently, caution must be exercised when interpreting ...

   Meeting Document : WG-IMALF-94/08 : Author(s): Coleen L. Moloney, John Cooper, Peter G. Ryan and W. Roy Siegfried (South Africa)

9. Report on fishing effort and seabird interactions during the season extension trials in the longline fishery for Patagonian toothfish (Dissostichus eleginoides) in Statistical Division 58.5.2

   of seabird mitigation measures since the initial fishing season in 2003. Over the years, CCAMLR has agreed ... to add season extensions from 15-30 April and 15 September- 31 October to the core season. In 2015 ... , CCAMLR XXXIV (para. 5.68) endorsed new pre-season (1-14 April) and post-season (15-30 November) season ... season extension trials were comparable to that during the existing pre-season extension from 15-30 April ...

   Meeting Document : WG-FSA-2019/31 : Author(s): P. Ziegler, T. Lamb, S. Wotherspoon and J. Dell

10. Report of the Workshop on data and modelling issues relevant to the planning of a potential Marine Protected Area (MPA) east of the zero meridian in the Weddell Sea (MAUD)

    Abstract:  The workshop was convened to follow up the agreement in the 2018 meeting of CCAMLR ... years.  The workshop that had multi-meber participation had two objectives. First, to discuss ... The workshop was convened to follow up the agreement in the 2018 meeting of CCAMLR on an approach ... collate and enhance information for the sub-area east of the prime meridian over the next few years.  ...

    Meeting Document : WG-EMM-2019/14 : Author(s): Delegation of Norway

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