Résultats de la recherche

1. Activity, seasonal site fidelity, and movements of Type-C killer whales between the Ross Sea, Antarctica and New Zealand

   -annually returning to areas of ecological significance, including New Zealand waters north and east of East ... between the Ross Sea and New Zealand, but also emphasises the urgent need to re-evaluate the profile of ... , TCKW have been identified as one of the two top predator species in the Ross Sea most likely to be ... TCKW may use small-scale areas in this highly productive ecosystem intensely for a period of days to ...

   Meeting Document : WG-EMM-15/52 : Auteur(s): R. Eisert (New Zealand), G. Lauriano, S. Panigada (Italy), E.N. Ovsyanikova, I.N. Visser, P.H. Ensor, R.J.C. Currey, B.R. Sharp and M.H. Pinkerton (New Zealand)

2. Preliminary investigations of an assessment model for skates and rays in the Ross Sea

   actual numbers of skates released, the initial mortality of tagged skate, the tag loss rate, and the ... Antarctic skates in SSRUs 88.1H, 88.1I, 88.1J, & 88.1K of the Ross Sea. The developmental model ... attempted to create a catch history of all skates and rays in the Ross Sea, and integrate these data with ... assessment model. We conclude that aspects of the catch history were very uncertain, including the species ...

   Meeting Document : WG-SAM-07/4 : Auteur(s): A. Dunn, S.M. Hanchet, S.L. Ballara and M.P. Francis (New Zealand)

3. SUMMARY OF SCIENTIFIC OBSERVATIONS RELATED TO CONSERVATION MEASURES 24-02 (2008), 25-02 (2009), 25-03 (2009) AND 26-01 (2009)

   , being intentionally disposed of at sea (Table 1). There were reports of unintentional gear loss. 4 ... seabird conservation”, 25-02 (2009) “Minimisation of the Incidental Mortality of Seabirds in the Course of ... Longline Fishing or Longline Fishing Research in the Convention Area”, 25-03 (2009) “Minimisation of the ... Incidental Mortality of Seabirds and Marine Mammals in the Course of Trawling in the Convention Area”, 26-01 ...

   Meeting Document : WG-FSA-10/08 : Auteur(s): Secretariat

4. Change in environmental conditions of the Southern Ocean observed by satellites and data-assimilating models between 1981 and 2019

   Sea sector and on the Antarctic continental shelf; (5) gradual loss of sea-ice in the Amundsen Sea and ... Abstract:  We provide a summary of environmental change in the Southern Ocean over the period of ... concentration from merged observation of SeaWiFS and MODIS-Aqua (1987–2019); (2) sea-surface temperature (SST ... ) from the AVHRR series of NOAA satellites (1981–2019); (3) spatial gradient of SST (as an indicator of ...

   Meeting Document : WG-EMM-2019/39 : Auteur(s): M. Pinkerton

5. Line weights of constant mass (and sink rates) for Spanish-rig Patagonian toothfish longline vessels

   method (a modified version of the former method to avoid fish loss by toothed whales) were examined in ... collections of rocks enclosed in netting bags. The netting bags abrade on the seabed, rocks are lost and ... use of torpedo-shaped steel weights. Steel weights are smaller, lighter for equivalent mass, more ... chartered Spanish-rig longline vessel to determine the statistical relationship in sink rates of longlines ...

   Meeting Document : WG-FSA-07/15 : Auteur(s): G. Robertson (Australia), C.A. Moreno, E. Gutiérrez (Chile), S.G. Candy (Australia), E.F. Melvin (USA) and J.P. Seco Pon (Argentina)

6. Migrations of Antarctic fish Pseudochaenichthys georgianus Norman, 1939 in the Scotia Sea

   distribution of krill, which flow further to North and East with geostrophic currents. Following after them ... Abstract:  The material obtained between 1986 and 1991 has allowed to study the pattern of ... geographical and depth distribution of Pseudochaenichthys georgianus in the area of Scotia Arc Islands and on ... shelf of South Georgia Island. In the Antarctic colder waters in the Palmer Archipelago there were ...

   Meeting Document : WG-FSA-12/68 Rev. 1 : Auteur(s): R. Traczyk (Poland)

7. Descriptive analysis of the Antarctic toothfish (Dissostichus mawsoni) tagging scheme in the Ross Sea for the years 1997/98 to 2003/04

   the von Bertalanffy growth curve. The preliminary estimate of tag loss from double tagging experiments ... Abstract:  A descriptive analysis of the toothfish tagging programme carried out in the Ross Sea ... Zealand vessels were unavailable at the time of the analysis. A total of 4903 Antarctic toothfish have ... two years, when tagging has been part of the Conservation Measure, New Zealand vessels have tagged ...

   Meeting Document : WG-FSA-SAM-05/10 : Auteur(s): A. Dunn, S.M. Hanchet and K. Maxwell (New Zealand)

8. OCEANIC CIRCUMPOLAR HABITATS OF ANTARCTIC KRILL

   regions of moderate food (0.5-1.0 mg chl a m-3). Advection models suggest some loss northwards from these ... Abstract:  Surveys of Euphausia superba often target localised shelves and ice edges where their ... , with 70% of the total stock concentrated between 0o and 90oW. Within this Atlantic sector, krill are ... inner shelf whereas in the Indian-Pacific sectors krill prevail in the ocean within 200-300 km of the ...

   Meeting Document : WG-EMM-08/P04 - Abstract : Auteur(s): A. Atkinson, V. Siegel, E. A. Pakhomov, P. Rothery, V. Loeb, R.M. Ross, L.B. Quetin, K. Schmidt, P. Fretwell, E.J. Murphy, G.A. Tarling and A.H. Fleming

9. Multiple acoustic estimates of krill density at South Georgia during 2000/2001 reveal significant intra-annual and spatial variability

   , north-east and south-west of the island. Together these surveys provided temporally and spatially ... region also reflected a mix of those to the east (generally small) and west (generally large). Krill ... Abstract:  Three separate acoustic surveys of Antarctic krill (Euphausia superba) were conducted ... newly-planned five-year series of observations designed to complement and extend an existing time series ...

   Meeting Document : WG-EMM-01/15 : Auteur(s): A.S. Brierley, C. Goss, S.A. Grant, J.L. Watkins, K. Reid, M. Belchier, I. Everson, M.J. Jessop, V. Afanasyev and J. Robst (United Kingdom)

10. USING AUTOMATED CAMERAS AS A COST-EFFECTIVE MEANS OF EXTENDING LAND-BASED PREDATOR MONITORING

    and reliable tools for surveillance and monitoring. This paper describes (1) the kinds of observations ... developed for use in the extreme conditions of Antarctica, (2) a preliminary assessment of the utility of ... expand the spatial extent of Adélie penguin monitoring, and to extend monitoring to additional land-based ... breeding species, in east Antarctica. Author(s):  C. Southwell, L. Emmerson and K. Newbery (Australia ...

    Meeting Document : WG-EMM-11/37 : Auteur(s): C. Southwell, L. Emmerson and K. Newbery (Australia)

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