Résultats de la recherche

1. Some characteristics of krill transport in the Scotia Sea based on the Russian survey data

   Abstract:  In this work the characteristics of krill transport across the SSMUs determined on the ... based on the long-term data from 3012 stations and respective time intervals when the water mass in the ... study area was totally replaced are presented. It is shown that in SSMUs the multiple total replacement ... be accompanied with krill biomass transport across the boundaries of the SSMUs. Our estimates of ...

   Meeting Document : WG-EMM-05/41 : Auteur(s): S.M. Kasatkina, V.N. Shnar and O.V. Berezhinsky (Russia)

2. Modelling the predator–prey interactions of krill, baleen whales and seals in the Antarctic ecosystem

   Abstract:  The history of human harvests of seals, whales, fish and krill in the Antarctic is ... summarized briefly, and the central role played by krill emphasized. The background to the hypothesis of a ... krill surplus in the mid 20th Century is described, and the information on population and trend levels ... that has become available since the postulate was first advanced is discussed. The objective of the ...

   Meeting Document : WG-EMM-05/34 : Auteur(s): M. Mori and D.S. Butterworth (South Africa)

3. Interannual variability of the South Georgia marine ecosystem: biological and physical sources of variation in the abundance of krill

   Abstract:  Interannual variability is a characteristic feature of the Southern Ocean ecosystem yet ... the relative roles of biological and physical processes in generating these fluctuations are unknown ... krill (Euphausia superba) in the South Georgia area, and that the variation affects much of the ... ecosystem with the most obvious impacts on survival and breeding success of some of the major krill ...

   Meeting Document : WS-AREA 48-98/8 : Auteur(s): E.J. Murphy, J.L. Watkins, K. Reid, P.N. Trathan, I. Everson, J.P. Croxall, J. Priddle, M.A. Brandon, A.S. Brierley (UK) and E. Hofman (USA)

4. Environmental variability and the behavioural dynamics of Antarctic fur seals in the South Atlantic

   Abstract:  Variability in the reproductive performance of marine predators may be a result of ... physical forcing by large-scale oceanographic variability. Time lags, remoteness from the epicentre of a ... physical process and the simultaneous action of multiple physical processes often mean that it is difficult ... . This study examined variation in the foraging behavior of lactating Antarctic fur seals (Arctocephalus ...

   Meeting Document : WS-AREA 48-98/16 : Auteur(s): I.L. Boyd (UK)

5. OTOLITH-BASED AGEING OF THE PATAGONIAN TOOTHFISH (DISSOSTICHUS ELEGINOIDES) FOR THE HEARD AND MCDONALD ISLANDS: MODELLING FIXED AND RANDOM READER ERROR USING MULTIPLE READINGS OF A REFERENCE COLLECTION

   calibration require an ageing error matrix as input in order to adequately account for uncertainty in the data ... resulting from the imprecision of age determination using annual ring counts from otoliths. This paper ... describes the methods and results used to provide an ageing error matrix to the HIMI toothfish integrated ... assessment using repeat readings by 4 readers of a set of 203 reference otoliths sampled from the HIMI ...

   Meeting Document : WG-FSA-09/21 : Auteur(s): S.G. Candy, G.B. Nowara, D.C. Welsford and J.P. McKinlay (Australia)

6. THE HISTOLOGICAL ANALYSIS OF OOGENESIS AND MATURITY OF ANTARCTIC TOOTHFISH FROM THE ROSS SEA

   Abstract:  The results of the histological analysis of the Antarctic toothfish (Dissostichus ... mawsoni) reproductive system, caught in December- February 2005/2006 in the Ross Sea are presented. The ... morphological parameters, indices of gonads and condition by Fulton have been described. The histological ... criteria of the assessment of the ovary maturity stages, cytological parameters of oocytes and type of the ...

   Meeting Document : WG-FSA-09/26 : Auteur(s): S.V. Piyanova and A.F. Petrov (Russia)

7. A RISK ASSESSMENT TO ADVISE ON STRATEGIES FOR SUBDIVIDING A PRECAUTIONARY CATCH LIMIT AMONG SMALL-SCALE MANAGEMENT UNITS DURING STAGE 1 OF THE STAGED DEVELOPMENT OF THE KRILL FISHERY IN SUBAREAS 48.1, 48.2, AND 48.3.

   Abstract:  We used Foosa and the reference set of parameterizations developed by Watters et al ... . (2008) to assess the risks and tradeoffs associated with various management strategies for subdividing ... the precautionary krill catch limit among SSMUs in Area 48. Our methodological approach follows ... directly from specifications made by the WG-SAM and the WG-EMM. We predict that the tradeoffs inherent in ...

   Meeting Document : WG-EMM-08/30 : Auteur(s): G.M. Watters, J.T. Hinke (USA) and S. Hill (United Kingdom)

8. OTOLITH-BASED AGEING OF THE PATAGONIAN TOOTHFISH (DISSOSTICHUS ELEGINOIDES) FOR THE HEARD AND MCDONALD ISLANDS: MODELLING FIXED AND RANDOM READER ERROR USING MULTIPLE READINGS OF A REFERENCE COLLECTION

   calibration require an ageing error matrix as input in order to adequately account for uncertainty in the data ... resulting from the imprecision of age determination using annual ring counts from otoliths. This paper ... describes the methods and results used to provide an ageing error matrix to the HIMI toothfish integrated ... assessment using repeat readings by 4 readers of a set of 203 reference otoliths sampled from the HIMI ...

   Meeting Document : WG-SAM-09/07 : Auteur(s): S.G. Candy, G.B. Nowara, D.C. Welsford and J.P. McKinlay (Australia)

9. Analysis of the stomach content in the blue-eyed shag Phalacrocorax atriceps bransfieldensis at Nelson Island, South Shetland Islands

   complemented with information on shags’ foraging trips, obtained in the field by film records. Author(s):  N ... Abstract:  Forty stomach contents of the blue eyed shag Phalacrocorax bransfieldensis were sampled ... at Nelson Island, South Shetland Islands, in January 1994. The analysis of the diet showed that fish ... were by far the main component, followed by octopods, polychaetes and gammarids. Notothenia coriiceps ...

   Meeting Document : WG-CEMP-94/31 : Auteur(s): N. Coria, R. Casaux, M. Favero and P. Silva (Argentina)

10. An interpretation of the growth of the Adelie penguin rookery at Cape Royds, 1955-1990

    Abstract:  The population dynamics of the Cape Royds rookery were modelled by computer, in order ... to determine the probable causes of the dramatic increase since 1980 in the numbers of Adelie ... penguins, Pygoscelis adeliae, breeding in the Ross Sea region, Antarctica. Variations in the extent of sea ... -ice around the rookery during incubation and chick rearing cannot feasibly explain the population ...

    Meeting Document : WG-CEMP-92/21 : Auteur(s): N. Blackburn (Denmark), R.H. Taylor and P.R. Wilson (New Zealand)

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