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1. A preliminary population status model for the Patagonian toothfish, Dissostichus eleginoides, on the Kerguelen Plateau (Divisions 58.5.1 and 58.5.2) using CASAL

   , indicating that the SSB0 and stock status estimates still need to be interpreted with caution. Continuing pre ... . Analysis of genetic, demographic and tagging data indicates that toothfish form a metapopulation in this ... . Preliminary results indicate that illegal fishing in the late 1990s and early 2000s lead to a rapid decline in ... substantial decline in catch rates seen in the French EEZ concurrent with illegal activities are poor ...

   Meeting Document : WG-SAM-11/20 : Author(s): S.G. Candy (Australia), A. Relot, G. Duhamel (France), D.C. Welsford, A.J. Constable, T.D. Lamb (Australia), P. Pruvost and N. Gasco (France)

2. Intra-annual variability in the abundance of Antarctic krill (Euphausia superba) at South Georgia, 2002–2005: within-year variation provides a new framework for interpreting previous ‘annual’ krill density estimates

   survey estimates with the observed pattern of within-year variability showed that some of the alleged ... pattern in krill abundance was detected that recurred consistently over all 3 years. Krill densities in ... (mean = 89.5 g m-2 SD 64.2). A simple polynomial regression model with time as the independent variable ... periods suggesting that the mooring point estimates had relevance in a wider spatial context (ship surveys ...

   Meeting Document : WG-EMM-06/25 : Author(s): R.A. Saunders, J.L. Watkins, K. Reid, E.J. Murphy, P. Enderlein, D.G. Bone and A.S. Brierley (United Kingdom)

3. Analysis of krill fishery operations in Subarea 48.1: spatial-time distribution of CPUE and fishing efforts

   method. We obtained the additional evidence that ‘high CPUE’ regime’ in 2006-2011 is not associated with ... Abstract:  In previous years we revealed that period 2006-2011 is characterized by the highest ... methods. Our investigation shows how fishery operated by years and month in each SSMUs with special ... fishing methods on fleet locations was not revealed also.     Our opinion is that climate changes can ...

   Meeting Document : WG-EMM-14/21 : Author(s): S. Kasatkina and P. Gasyukov (Russia)

4. Distribution of Antarctic krill concentrations exploited by Japanese krill trawlers and minke whates

   indicated that harvestable areas were associated with the continental and insular shelf breaks, not the pack ... -ice edge. Minke whaling data also suggested that not only sea-ice but also topographical features such ... as the continental shelf break and various banks may be important factors affecting minke whale ... distribution. Krill harvesting areas in the vicinity of the shelf breaks were often coincident with ...

   Meeting Document : SC-CAMLR-VIII/BG/31 : Author(s): Delegation of Japan

5. KRILL CATCHES INDICATE THE IMPACT OF THE EL-NIŇO – SOUTHERN OSCILLATION RELATED PROCESSES ON THE DISTRIBUTION OF KRILL BIOMASS BETWEEN SUBAREAS OF THE ATLANTIC SECTOR OF ANTARCTIC

   Programme findings as described by Loeb et al. (2009). It is shown that krill fisheries statistics may be ... analysis suggest that the dynamics of krill biomass in fishable aggregations in Subareas 48.1 and 48.2 is ... associated with La Niňa event in the South Pacific. The mechanisms for these phenomena associated with the ... with different oceanographical regime governed by ENSO. Author(s):  V. Spiridonov (Russia) Title ...

   Meeting Document : WG-EMM-09/47 : Author(s): V. Spiridonov (Russia)

6. Climate change and zooplankton dominance in the Antarctic marine ecosystem: implications for the food web

   years suggests that the food web may be affected by climate change. The 1994/95 austral summer season ... Abstract:  There is a growing body of evidence that the climate of the Antarctic Peninsula region ... has been warming over the past 40 years with an associated decreased frequency of winters with ... extensive winter sea-ice development and large summertime salp blooms follow winters with relatively little ...

   Meeting Document : WG-EMM-96/21 : Author(s): Siegel, V., Fraser, W., Trivelpiece, S., Holm-Hansen, O., Loeb, V., Hewitt, R., Trivelpiece, W.

7. Review of the use of survey data and length-at-age models in the assessment of Dissostichus eleginoides in the vicinity of Heard Island and McDonald Islands (Division 58.5.2)

   that best estimates of cohort abundance will be achieved when mixture analysis is informed by accurate ... abundance of specific cohorts were sensitive to the number of cohorts assumed to be represented in the ... year such as could be derived through an age length key, and the selectivity of the gear used in the ... abundance of juvenile fish and the length-at-age model were also examined. Yield estimates were found to be ...

   Meeting Document : WG-FSA-06/44 Rev. 1 : Author(s): D.C. Welsford, A.J. Constable and G.B. Nowara (Australia)

8. Fatty acid signature analysis from the milk of Antarctic fur seals and southern elephant seals from South Georgia: implications for diet determination

   Ocean, that were expected to have highly contrasting diets. Milk samples were collected from Antarctic ... trees (CART) indicated that profiles from fur seals and elephant seals were significantly different ... . Southern elephant seal data could be distinguished from Antarctic fur seals by lower levels of the fatty ... :1 n9 co- eluting with 18:1 n11) and 20:1 n9. Fatty acid signatures from the milk of Antarctic fur ...

   Meeting Document : WG-EMM-99/44 : Author(s): D.J. Brown, I.L. Boyd, G.C. Cripps and P.J. Butler (United Kingdom)

9. Mitigation of Macrourus by-catch in research block 58.4.1_6 and estimation of Macrourus biomass and sustainable catch in Divisions 58.4.1 and 58.4.2

   rates in research block 58.4.1_6, and conclude that the current research grid includes fishing locations ... with high Macrourus spp. by-catch rates in depths between 750 m and 1150 m. To mitigate Macrourus spp ... . by-catch in future fishing seasons, we propose to either (1) modify the research grid such that the ... vessels to fish within the research grid with structured fishing. The latter option is similar to research ...

   Meeting Document : WG-FSA-17/23 : Author(s): D. Maschette, P. Burch, P. Yates and P. Ziegler

10. Discussion on recent results from an integrated assessment of Antarctic krill (Euphausia superba) in Subarea 48.1

    to harvests that are inconsistent with the objectives of the Convention.  We propose that WG-EMM ... and estimate krill growth.  Kinzey et al. (2014) fitted stock-assessment models to survey data that ... different changes in biomass but predicted absolute biomasses that were similar to those from the seasonal ... simulation testing.  Together, results from the two annual models and the seasonal model suggest that inter ...

    Meeting Document : WG-EMM-14/35 : Author(s): G.M. Watters, C.S. Reiss and D. Kinzey (USA)

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