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1. Updated stock assessment of Patagonian toothfish (Dissostichus eleginoides) in the vicinity of Kerguelen Islands (division 58.5.1)

   Abstract:  This paper presents the latest developments in model of Kerguelen with an updating of ... input data from the more recent years (up to 2016/17 season) and a reassessment of stocks taking into ...

   Meeting Document : WG-FSA-17/60 : Auteur(s): R. Sinegre, G. Duhamel and J.B. Lecomte

2. Vertical migrations of mackerel icefish (Champsocephalus gunnari) on the South Georgia shelf

   of fish feeding activity was also observed at night. Fishing during this period with bottom trawls ... commercial concentrations of C. gunnari in years of high abundance of the species (1982/83, 1983/84 and 1986 ... may be used for clarification of survey techniques used in stock assessment. For a number of years ... observed at night. Fishing during this period with bottom trawls had yielded almost no catches at all. The ... ). With the onset of dusk (17:00 to 19:00 hr) fish begin migrating to the upper layers and the size of ... concentrations when fishing with midwater trawls. Trawls were set at depths where concentration of fish was the ... years of high abundance of the species (1982/83, 1983/84 and 1986/87). Catch-per-hour of fishing was ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 3–14 : Auteur(s): Frolkina, J.A. and V.I. Shlibanov

3. On the consequences of differentiating between adult and sub-adult survival rates in the krill-predators model

   split of the overall density dependence effect between the first year and following sub-adult years of ... Abstract:  The krill-predators model is generalised by splitting post-first-year animals into ... adults and sub-adults, with different survival rates for these two groups. Broadly speaking, the sub ... . This solution brings with it new problems, however, in that two further parameters need to be specified ...

   Meeting Document : WG-EMM-95/39 : Auteur(s): Butterworth, D.S., Thomson, R.B.

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

   Subarea 48.1 is submitted with accompanying description of the acoustic survey and data analysis ... data were collected with ship-mounted Simrad EK60 scientific echosounder system. A swarm-based Echoview ... EV template was used for echo-integration, and the areal krill density with coefficient of variance ... increasing trend during the last 6 years, increased from 20.22 g m-2 in December 2013 to 70.13 g m-2 in ...

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

5. Age-structured production model for toothfish at South Georgia

   frequency data achieved last year, but the fit was still poor. The fit to the CPUE was also poor. With ... model. Revisions to the selectivity model this year have led to an ASPM with superior performance ... decaying function of age, with three easily interpretable parameters. When only a single selectivity curve ... reaches preset parameter boundaries. With one or two parameters of the selectivity estimated only once the ...

   Meeting Document : WG-FSA-SAM-05/18 : Auteur(s): A. Payne, G.P. Kirkwood, R. Hillary and D.J. Agnew (United Kingdom)

6. Has climate change promoted genetic fragmentation in the ice-dependent fish Pleuragramma antarcticum?

   and was unable to discriminate between hypotheses of panmixia, with occasional fluctuations of gene ... scale from samples collected off the tip of the AP, with a signal of increased fragmentation over time ... shelf, the increase of population fragmentation with time, and the inability to capture P. antarcticum ... dependent species could be highly vulnerable to climate change with possible cascading effects on the ...

   Meeting Document : WG-FSA-13/67 : Auteur(s): C. Agostini, T. Patarnello (Italy), J. Ashford, J. Torres (USA) and L. Zane (Italy)

7. La pêche à la légine australe (Dissostichus eleginoides) à Kerguelen (secteur Indien de l'océan Austral)

   Islands zone for 20 years, firstly with trawlers and more recently with longliners. It is the oldest ...

   Meeting Document : WG-FSA-05/27 : Auteur(s): C. Lord, G. Duhamel et P. Pruvost (France)

8. On commercial significance of krill aggregations

   operation areas and compare it with critical density values for marine animals feeding on krill. The results ... with biomass density of at least 100 g/m2. This threshold value of krill commercial biomass ... and 2002 (2380 hauls). In the course of the recent twenty years, krill has been fished in the areas ...

   Meeting Document : WG-EMM-03/31 : Auteur(s): S.M. Kasatkina (Russia)

9. Beach litter accumulation at sub-Antarctic Marion Island – 1998/99

   accunmulation for the year May 1998- April 1999. The amount of debris found in both annual and monthly ... the most prevalent, followed by items with oriental script. Monthly accumulation studies showed a ... strong seasonal effect with most items arriving during the winter. Litter retention studies showed that ... dominated for the previous two years. Items originating from South America (Argentina in particular) were ...

   Meeting Document : CCAMLR-XVIII/BG/22 : Auteur(s): Delegation of South Africa

10. Estimation of krill (Euphausia superba) mortality and production rate in the Antarctic peninsula region

    Peninsula from 26 December 1989 to 14 January 1990. Results were compared with data of an identical survey ... with RV ‘Polarstern’ in 1987/88. Seasonal variation between summer and winter abundance/biomass data ... 0.88 to 0.94 for different years. The exchange rate of water masses and krill biomass within one summer ...

    Meeting Document : WG-KRILL-91/15 : Auteur(s): Delegation of Germany

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