Résultats de la recherche

1. Estimating krill recruitment and its variabiliity

   Southern Ocean give a mean recruitment rate for one year old krill of 0.339 with a standard deviation of ... 0.100. The corresponding results for two year old krill from 9 surveys are 0.552 and standard deviation ... 0.074. A number of the assumptions needed for reliable results are discussed. Author(s):  W. de la Mare ...

   Meeting Document : WG-KRILL-93/12 : Auteur(s): W. de la Mare (Australia)

2. A RE-ANALYSIS AND UPDATE OF THE ANTARCTIC KRILL BIOMASS IN THE SOUTH SHETLAND ISLANDS, THROUGH 2011

   based data show that 2011 was a year of good recruitment, following two years of low recruitment. Krill ... -based estimates of krill density and recruitment are recalculated for the years 1996 through 2011 ... most rapid climate change as well as population declines of major land-based predators. Author(s):  A ...

   Meeting Document : WG-EMM-11/26 : Auteur(s): A. Cossio, C. Reiss and R. Driscoll (USA)

3. An analysis of early change in the blubber thickness of minke whales as an indicator of krill availability

   cases were detected significant out of 24 pairs of successive year comparison. Estimates were obtained ... which index of krill availability were also esitmated. These two series of estimates of indices were ... for seven years for increment between December and February with a fair agreement between the sexes ... . Comparison based on the difference between the thickness in December in successive years was proved valid, by ...

   Meeting Document : WG-CEMP-87/18 : Auteur(s): Y. Shimadzu (USA)

4. Preliminary assessment of mackerel icefish (Champsocephalus gunnari) for the Heard Island Plateau region (Division 58.5.2) based on a survey in June 2005

   using the assessment methods of CCAMLR. It is proposed that a one-year projection be used in the ... years old during the coming season. This would result in an estimated yield of 1,210 tonnes, which is ... less than that predicted for the coming season in the 2004 assessment by WG-FSA. Author(s):  A.J ...

   Meeting Document : WG-FSA-05/39 : Auteur(s): A.J. Constable, T. Lamb and R. Williams (Australia)

5. The fishery for Champsocephalus gunnari and its biology at Heard Island (Division 58.5.2)

   populations in the respective areas are mostly independent of one another. Author(s):  R. Williams, E. van ... periodic abundant year classes that can be followed through the population before disappearing in their ... fifth year. The occurrence of abundant cohorts is not synchronised between the Heard Island Plateau ... between 1990 and 2000. Icefish abundance varies widely between years and the fishery is dependent on ...

   Meeting Document : WAMI-01/04 : Auteur(s): R. Williams, E. van Wijk, A. Constable and T. Lamb (Australia)

6. Leslie analyses of commercial snow crab trap data: a comparative study of catchability coefficients

   from a survey conducted with traps. One way to calibrate the catch rates is to examine available ... historical Leslie analyses of commercial catch data obtained over several years and quantify the relationship ... that this approach may be feasible. Author(s):  J.M. Hoenig, E.G. Dawe, D.M. Taylor, M. Eagles and J ...

   Meeting Document : WS-CRAB-93/13 : Auteur(s): J.M. Hoenig, E.G. Dawe, D.M. Taylor, M. Eagles and J. Tremblay (USA)

7. Do fish prey size affect the foraging patterns and breeding output of the Antarctic shag Phalacrocorax bransfieldensis?

   Islands, may be one of the reasons to explain the steady decrease in the number of breeding Antarctic ... shags observed in the last twelve years at colonies monitored in that archipelago. Author(s):  R. Casaux ... Gobionotothen gibberifrons and Notothenia rossii observed in the last eighteen years around the South Shetland ...

   Meeting Document : WG-EMM-02/4 : Auteur(s): R. Casaux and A. Baroni (Argentina)

8. The annual random stratified trawl survey to estimate the abundance of Dissostichus eleginoides and Champsocephalus gunnari in the Heard Island region (Division 58.5.2) for 2012

   those of 2011 and about one and a half times higher than the long-term average. Champsocephalus gunnari ... RSTS were generally high in comparison with previous years, with the total fish catch being twice as ... ), anemones and corals. Catches of individual taxa were generally much lower than in previous years, except ... of fish, 1095 pairs of otoliths collected and 524 toothfish were tagged. Author(s):  G.B. Nowara and ...

   Meeting Document : WG-FSA-12/25 : Auteur(s): G.B. Nowara and T. Lamb (Australia)

9. Towards the development of an assessment of stock abundance for Subarea 88.2 SSRUs 88.2C–G

   next 2–3 years) it be made mandatory for vessels to complete all of their sets inside one or more of ... could be relaxed in future years once sufficient tags have been recaptured to carry out an assessment of ... .   Author(s):  S.M. Hanchet and S.J. Parker (New Zealand) Title:  Towards the development of an assessment ...

   Meeting Document : WG-FSA-14/59 : Auteur(s): S.M. Hanchet and S.J. Parker (New Zealand)

10. Dietary segregation of krill-eating South Georgia seabirds

    Abstract:  The diets of six of the main seabird species (two petrels, two albatrosses, two ... performance was indicative of a year of good availability of krill around South Georgia. In such circumstances ... success and information on diet in 5-10 other years suggest that in 1986 seabird diet and reproductive ... of dietary segregation. Author(s):  Prince, P.A., Croxall, J.P., Reid, K. Title:  Dietary segregation ...

    Meeting Document : WG-EMM-97/15 : Auteur(s): Prince, P.A., Croxall, J.P., Reid, K.

Pages