Résultats de la recherche

1. Composition and standing stock estimates of finfish from the Polarstern bottom trawl survey around Elephant Island and the South Shetland Islands (Subarea 48.1, 19 December 2006 to 3 January 2007)

   composition, biomass, and size composition of the abundant fish species was provided. Estimates of total ... South Shetland Islands and N. rossii in both areas. The proportion of juvenile G. gibberifrons ... , decreased further due to the production of poor year – classes since the late 1990’s. A concentration of N ... . rossii was found in the same location where aggregations of the species have been detected in 1975/76 and ...

   Meeting Document : WG-FSA-07/22 : Auteur(s): K.-H. Kock, J. Appel, M. Busch, S. Klimpel, M. Holst, D. Pietschok (Germany), L.V. Pshenichnov (Ukraine), R. Riehl, S. Schöling (Germany)

2. Approaches to monitoring and assessing the abundance of rattails (Macrourus spp.) and skates in the Ross Sea

   , experimental manipulation of fishing effort, catch-curve analysis, tagging programmes, bottom trawl surveys ... towards obtaining abundance estimates for rattails and skates in the Ross Sea. The major advantage of this ... range 600–1500 m to obtain a precise estimate of bycatch abundance in the area of highest densities ... (SSRUs 881E, G, H, I, J, and K). A trawl survey could also be used in conjunction with other methods of ...

   Meeting Document : WG-FSA-05/22 : Auteur(s): R.L. O’Driscoll, S.M. Hanchet and B.A. Wood (New Zealand)

3. Descriptive analysis of haul data from FV Atlantic Navigator in Elephant Islands (48.1), South Georgia Islands (48.3) and South Orkney Islands (48.3) krill fishery (summer 2004 to early winter 2005)

   (early winter 2005) with a total of 251 days of effective fishing. Descriptive study of the fishery ... continuous fishing system with air-bubbling suspension and suction of capture (CFS). Individual haul data ... were analyzed to describe differentialy catch rates (catch per day and catch per minute) of the three ... different fishing zones studied. The total catch registered was 41837 tonnes: 50% of this capture was ...

   Meeting Document : WG-EMM-05/12 : Auteur(s): O. Pin, H. Nión, E. Delfino and P. Meneses (Uruguay)

4. Exploitation of the marine environment by two sypatric albatrosses in the Pacific Southern Ocean

   . Data were analysed in relation to the bathymetry and sea-surface temperature of the foraging zones ... . Black-browed albatrosses spent 55% of their time on the Campbell Plateau but also carried out long ... foraging trips to the Polar Front and Antarctic Zone at a distance of over 2000 km. They relied heavily on ... waters the squid Martialia hyadesi was the main prey item. Grey-headed albatrosses spend 71% of their ...

   Meeting Document : WG-FSA-04/59 : Auteur(s): S.M. Waugh (New Zealand), H. Weimerskirch, Y. Cherel (France), U. Shankar (New Zealand), P.A. Prince (United Kingdom) and P.M. Sagar (New Zealand)

5. Fishing patterns of Japanese krill trawlers

   ‘operation units’ which consists from a group of repeated operations within certain searching ranges (10nm ... , 30nm, and 60nm). Distribution of the operation units showed considerable variation in space and time ... with the plots of aggregated catch, suggesting these two kinds of CPUEs may not be good indices for ... expressing the status of krill in the fishing ground. Catch per fishing days maybe the reasonable index for ...

   Meeting Document : WG-EMM-02/28 Rev. 1 : Auteur(s): S. Kawaguchi, T. Kameda and Y. Takeuchi (Japan)

6. TOWARDS A SYSTEM OF MARINE SPATIAL PROTECTION FOR THE SOUTH ORKNEY ISLANDS

   Abstract:  The region surrounding the South Orkney Islands has been identified by CCAMLR as one of ... following the pilot study, with the aim of generating products that can be used to inform decision-making on ... areas that might form the basis of further work, emphasising a number of questions that will help ... -XXVIII, describing a package of marine spatial protection and management measures that could be ...

   Meeting Document : WG-EMM-09/22 : Auteur(s): S. Grant, P.N. Trathan, J. Tratalos and J. Silk (United Kingdom)

7. SPATIAL DISTRIBUTION AND AGE STRUCTURE OF THE ANTARCTIC TOOTHFISH (DISSOSTICHUS MAWSONI) IN THE ROSS SEA, ANTARCTICA

   the availability of habitat is critical to the long-term viability of the population. Antarctic ... assess the availability of habitat for Antarctic toothfish a benthic habitat map of the Ross Sea was ... were consistent with an ontogenetic movement of fish from shallow continental shelf habitats to deep ... individuals were found on ridges in the northern Ross Sea, consistent with the hypothesis of an austral summer ...

   Meeting Document : WG-FSA-08/18 : Auteur(s): C.M. Brooks and J.R. Ashford (USA)

8. Establishment of a cemp monitoring program at Bouvetøya

   western coast of the island during the 1996/97 field season. Species included in the monitoring program ... (1996/97), monitoring of the following parameters were initiated for the two species of penguins ... : Breeding population size (A3), Age-specific annual survival and recruitment (A4), Duration of foraging ... Seal, the program includes monitoring of Duration of cow foraging/attendance cycles (C1) and Pup growth ...

   Meeting Document : WG-EMM-97/19 : Auteur(s): Gjertz, I., Isaksen, K., Bakken, V., Mehlum, F.

9. Population dynamics of black-browed and grey-headed albatrosses Diomedea melanophris and D. chrysostoma at Bird Island, South Georgia

   Abstract:  Population dynamics of Black-browed and Grey-headed Albatrosses were studied at Bird ... Albatross colonies decreased, at an average rate of 1.8% per annum. Although the total Black-browed ... Albatross population increased (at 0.8% p.a.), 14 of the 23 colonies (including both study colonies ... ) decreased. Black-browed Albatrosses follow an annual breeding cycle, with over 80% of birds successful in ...

   Meeting Document : WG-CEMP-93/06 : Auteur(s): P.A. Prince, P. Rothery, J.P. Croxall and A.G. Wood (United Kingdom)

10. Recent increase and southern expansion of Adelie penguin populations in the Ross Sea, Antarctica, related to climatic warming

    Abstract:  The numbers of Adelie penguins Pygoscelis adeliae (Hombron and Jacquinot) in the Ross ... Barne (77°35’S) with the re-occupation of a former rookery that was abandoned sometime before the ... present century. These biological trends show remarkable synchronisation with physical evidence of ... climatic variation in the McMurdo Sound region. We suggest that the dynamics of Adelie penguin populations ...

    Meeting Document : WG-CEMP-92/22 : Auteur(s): R.H. Taylor and P.R. Wilson (New Zealand)

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