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1. Update of the activities of the SCAR krill action group (SKAG) since last year’s WG-EMM

   Abstract:  The first annual meeting of the SCAR Krill Action Group (SKAG) met in Concarneau France ... on June 15 th and 16 th, 2019. The meeting focused on several topics including the identification of ... important knowledge gaps in krill research that could provide data in support of the management needs of ... CCAMLR. Author(s):  B. Meyer and C. Reiss Title:  Update of the activities of the SCAR krill action group ...

   Meeting Document : WG-EMM-2019/12 Rev. 1 : Автор(ы): B. Meyer and C. Reiss

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

   of gentoo penguin chicks during their “fledging period”; defined as the time between a chick’s first ... trip to sea and its final dispersal from the breeding colony. Our study was conducted at a colony of ... approximately 2500 breeding pairs of gentoo penguins in Admiralty Bay, King George Island, South Shetland ... Islands during the 2004-05 austral summer. Gentoo penguins exhibited delayed dispersal of young coupled ...

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

3. ON METHODS OF THE EXPERIMENT CARRIED OUT TO DETERMINE THE RATE OF ‘ESCAPE MORTALITY’ ON FISHING OR RESEARCH VESSELS DURING ANTARCTIC KRILL FISHERY

   Abstract:  According to recommendations of Working Group on Ecosystem Monitoring and Management ... (SC-CAMLR-XXVIII/3, paragraph 3.7), 2009 in Bergen, due to the results of considering Document WG-EMM ... -09/11, in which the uncertainty of krill amount perished while its trawling at fishery is focused ... , the recommendations were submitted on carrying out the experiment to determine the rate of krill ...

   Meeting Document : SC-CAMLR-XXVIII/BG/10 : Автор(ы): Delegation of Ukraine

4. Estimates of length-frequency in the assessment of mackerel icefish Champsocephalus gunnari in Subarea 48.3

   Abstract:  This working document provides details of a modification in the method of calculating ... length distributions used in the assessment of Champsocephalus gunnari from the length distributions of ... individual hauls. The effect of these changes in method have little impact on the catches that would have ... from the 2015 and 2017 surveys.   Author(s):  T. Earl Title:  Estimates of length-frequency in the ...

   Meeting Document : WG-FSA-17/51 : Автор(ы): T. Earl

5. Preliminary analyses of data collected during experimental fishing for Patagonian toothfish in international waters of the southwest Indian Ocean (Area 51)

   procedures, in a restricted area south of Madagascar and north of the Prince Edward and Marion Islands and ... the Crozet Islands, and outside EEZ and CCAMLR waters. A total of 57 sets were taken at between 360 ... comprised between 53 and 1158 kg. Northward distribution of Patagonian toothfish is closely related to the ... extension of the sub-Antarctic Front to the north. The prospected area would seem to be located at the edge ...

   Meeting Document : WG-FSA-04/19 : Автор(ы): L.J. López Abellán (Spain)

6. An 8-year cycle in krill biomass density inferred from acoustic surveys conducted in the vicinity of the South Shetland Islands during the austral summers of 1991/1992 through 2001/2002

   vicinity of the South Shetland Islands, Antarctica were re-analyzed using updated procedures for ... compensating for diel vertical migration of krill outside of the acoustic observation window. Intra-and inter ... surveys conducted in the austral summers of 1991/1992 through 2001/2002. Estimated biomass density ranged ... variability may be attributed to changes in the spatial distribution of krill relative to the survey area ...

   Meeting Document : WG-EMM-03/6 : Автор(ы): R.P. Hewitt, D.A. Demer and J.H. Emery (USA)

7. Reconciling theoretical versus empirical target strengths of krill; effects of phase variability on the distorted wave Born approximation

   Abstract:  A model was recently proposed to predict the target strengths (TS) of Antarctic krill ... ]. Based on the distorted wave Born approximation (DWBA), the model depends upon the coherent summation of ... scattering from elements of a discretized bent cylinder. It was empirically validated at 120 kHz near ... , the authors noted that the differences were not entirely due to noise. In this study, the accuracy of ...

   Meeting Document : WG-EMM-02/50 : Автор(ы): D.A. Demer and S.G. Conti (USA)

8. Analysis of krill trawling positions in the area north of the South Shetland Islands (Antarctic Peninsula area) from 1980/81 to 1998/99

   Abstract:  Positions of commercial krill operation for 1980/81 season to 1998/99 season in the ... area to the north of South Shetland Islands were analyzed by using GLM (generalized linear model ... ). Fishing season, the timing, and the longitude were significant factors to explain the variability of ... from mid-1980 onwards, they tended to happen in the south, with exceptions of 1994/95 and 1995/96 ...

   Meeting Document : WG-EMM-00/58 : Автор(ы): S. Kawaguchi (Japan)

9. Criteria for aging the otoliths of Dissostichus eleginoides from South Georgia (Subarea 48.3) and an analysis of aging precision

   Abstract:  A prerequisite for validation of an aging technique is a clear set of consistent aging ... criteria to test. Two sets of criteria ate presented for aging the otoliths of Dissostichus eleginoides ... occur at several scales and vary both within and between otoliths. Pairwise comparisons of repeat ... within and between observers, reflecting the complexity of the otolith structure. Aging using criteria C1 ...

   Meeting Document : WG-FSA-98/52 : Автор(ы): J. Ashford (United Kingdom) and S. Wischniowski (Canada)

10. Changes in population size of large Procellariiformes breeding in the French sub-Antarctic islands: potential influence of southern fisheries and particularly long lining

    indicate that these declines are mainly the result of increased adult mortality. This high rate of ... mortality has been suspected to be the result of mortality incurred in long-line fisheries. Satellite ... tracking studies of breeding birds and band recoveries of non breeding birds indicate that during and ... EEZ. The decrease in the fishing effort of the Japanese fishery during the recent years has probably ...

    Meeting Document : WG-IMALF-94/11 : Автор(ы): Henri Weimerskirch and Pierre Jouventin (France)

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