Résultats de la recherche

1. Long term movements and activity patterns of an Antarctic marine apex predator: the leopard seal

   including one individual in two separate years.  Whilst the sample size is small the results represent an ... habitat associations, taking into account location errors, indicated the tracked seals had an affinity for ... changed throughout the year with the highest values occurring during the summer which has implications for ... Abstract:  Leopard seals are an important Antarctic apex predator that can affect marine ...

   Meeting Document : WG-EMM-18/P09 : Auteur(s): I.J. Staniland, N. Ratcliffe, P.N. Trathan and J. Forcada

2. An acoustic estimation of krill densities to the north of South Georgia in January 1994

   Abstract:  Dual frequency (38 and 120 kHz) acoustic surveys were carried out in two regions along ... signal strength between the two frequencies (δMVBS = MVBS 120 kHz- MVBS 38 kHz) was used to discriminate ... provide further evidence of an extreme krill paucity around South Georgia in the 1993/4 season. Author(s ... ):  Watkins, J.L., Brierley, A.S. Title:  An acoustic estimation of krill densities to the north of South ...

   Meeting Document : WG-EMM-95/74 : Auteur(s): Watkins, J.L., Brierley, A.S.

3. Do Adélie penguin fledgling weights provide an index of prey availability?

   . The concerns raised by Williams and Croxall (1990) that fledgling weight may increase with an ... to two assumed proxies of prey availability: breeding success and foraging trip duration. Concordance ... between the two proxies was apparent when considering guard stage foraging trip durations but this was not ... as strong for the crèche foraging trips later in the season. Fledgling weights which are measured at ...

   Meeting Document : WG-EMM-05/21 : Auteur(s): L. Emmerson, C. Southwell and J. Clarke (Australia)

4. Towards an assessment of the stock of the ommastrephid squid Martialia hyadesi in the Scotia Sea: data from predators

   . Martialia probably has a life span of two years and a circumpolar distribution but its biology and ecology ... Abstract:  Cephalopod fisheries world-wide mainly target species from two families, Loliginidae ... and Ommastrephidae. Fisheries for the latter have been characterised by dramatically fluctuating ... squid is an important component of the diet of several species of albatross and the southern elephant ...

   Meeting Document : SC-CAMLR-IX/BG/13 : Auteur(s): Delegation of United Kingdom

5. An updated information of the Japanese krill fishery in the Antarctic

   of two different type of operation. Operated areas in 1983/84 and 1984/85 seasons were illustrated ... and three historical main fishing grounds were identified. Author(s):  Y. Shimadzu (Japan) Title:  An ...

   Meeting Document : WS-KCPUE-85/05 : Auteur(s): Y. Shimadzu (Japan)

6. Can we use discriminant function analysis to sex penguins prior to calculating an index of a morphometric parameter?

   Abstract:  In sexually dimorphic species, morphometric parameters have separate distributions for ... sex of individuals, it is only able to correctly sex a certain proportion of birds. Two overlapping ... normal distributions are used to show that there is a difference between the real mean parameter for a ... . Combining all data for both sexes is considered as a procedure for avoiding the necessity of sex ...

   Meeting Document : WG-CEMP-92/11 : Auteur(s): D.J. Agnew (Secretariat)

7. An attempt to derive a composite index of abundance from acoustic surveys and fishery data

   composite index of krill abundance (SC-CCAMLR-VIII, 1989) were derived for two surveys from these data sets ... distribution of fishing effort in the Chilean krill fishery indicate an area of high krill density wrapping ... end of the island. Author(s):  R.P. Hewitt (USA), V. Marín (Chile) and D. Demer (USA) Title:  An ...

   Meeting Document : WG-Krill-94/14 : Auteur(s): R.P. Hewitt (USA), V. Marín (Chile) and D. Demer (USA)

8. An analysis of temporal variability in abundance, diversity and growth rates in the coastal ichthyoplankton assemblage of South Georgia (sub-Antarctic)

   Abstract:  Data from a seven-year (2002-2008) ichthyoplankton sampling programme in Cumberland Bay ... fish diversity and abundance. Larvae of twenty two species, representing nine families, were identified ... significantly correlated with local SST or primary productivity.  Estimates of larval growth are provided for 5 ... there has been little change in growth rate for the main species over the last three decades. Author(s ...

   Meeting Document : WG-FSA-12/33 : Auteur(s): M. Belchier and J. Lawson (United Kingdom)

9. Biomass of krill in Division 58.4.2 and an estimation of precautionary yield, including a subdivision of the precautionary catch limit along the 55ºE longitude

   Biomass of krill in Division 58.4.2 and an estimation of precautionary yield, including ...

   Meeting Document : SC-CAMLR-XXVI/07 : Auteur(s): Delegation of Australia

10. An updated descriptive analysis of the toothfish (Dissostichus spp.) tagging programme in Subareas 88.1 and 88.2 up to 2005/06

    data for non-New Zealand vessels for the 2005-06 season for the first time. However, tag data were ... still only available for about half of the non-New Zealand vessels for 2003-04. A reported total of 10 ... release data. Two fish tagged and recaptured in the fishery have moved over 200 km, but the majority (> ... increased the size of toothfish being tagged so that for the first time the size distribution of the tagged ...

    Meeting Document : WG-FSA-06/34 : Auteur(s): A. Dunn and S.M. Hanchet (New Zealand)

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