Résultats de la recherche

1. Status of white-chinned petrels Procellaria aequinoctialis Linnaeus 1758, at Bird Island, South Georgia

   population status. We assessed the status of white-chinned petrels at Bird Island, South Georgia by comparing ... was consistent at around 44%. Significant factors determining densities of occupied burrows were crown ... Kingdom) Title:  Status of white-chinned petrels Procellaria aequinoctialis Linnaeus 1758, at Bird Island ... breeding in tussock grassland at sub-Antarctic islands. Over the last decade it has been killed in large ...

   Meeting Document : WG-FSA-01/26 Rev. 1 : Auteur(s): S.D. Berrow, J.P. Croxall and S.D. Grant (United Kingdom)

2. 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 ... :  Population dynamics of black-browed and grey-headed albatrosses Diomedea melanophris and D. chrysostoma at ...

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

3. Using effective sample sizes to evaluate the efficiency of length samples collected by at-sea observers in the krill fishery in Subarea 48.1

   of hauls to allow better estimates of catch at length. Author(s):  N. Kelly, S. Kawaguchi, P. Ziegler ... Abstract:  Catch at length is an important input into any stock assessment. Consequently ... , collecting length data from the catch is a task undertaken by all at sea observes in CCAMLR fisheries ... . Although analyses in the past have looked to the optimal design of the observer program, in terms of levels ...

   Meeting Document : WG-SAM-16/39 : Auteur(s): N. Kelly, S. Kawaguchi, P. Ziegler and D. Welsford

4. CASAL model evaluation incorporating the calculation of harvest rate for D. eleginoides at Division 58.4.4b

   built to assess the stock of D. eleginoides at the research block 1 of Division 58.4.4b. The base model ... at the block 1 of Division 58.4.4b (Table 1). Changing IUU level (26.5 t to 40 t) in 2009/10 fishing ... calculation of harvest rate for D. eleginoides at Division 58.4.4b Approval:  Approved Secretariat Workflow ... Abstract:  In order to achieve the milestone “1.5 Update CASAL model” of the ongoing research plan ...

   Meeting Document : WG-FSA-2019/62 : Auteur(s): T. Okuda and F. Massiot-Granier

5. Population, breeding, diet and conservation of Crozet shag Phalacrocorax [atriceps] melanogenis at Marion Island, 1994/95 to 2002/03

   mean number of pairs at colonies also decreased and was significantly related to the overall number of ... precipitation at Marion Island and with a decrease in the number of gentoo penguins Pygoscelis papua breeding ... conservation of Crozet shag Phalacrocorax [atriceps] melanogenis at Marion Island, 1994/95 to 2002/03 Approval ... Abstract:  The number of Crozet shags or cormorants Phalacrocorax [atriceps] melanogenis breeding ...

   Meeting Document : WG-EMM-03/17 : Auteur(s): R.J.M. Crawford, J. Cooper, B.M. Dyer, A.C. Wolfaardt, D. Tshingana, K. Spencer, S.L. Petersen, J.L. Nel, D.G. Keith, C.L. Holness, B. Hanise, M.D. Greyling and M. du Toit (South Africa)

6. Acoustic estimates of krill abundance at South Georgia, 1981–1998

   Abstract:  Acoustic estimates of abundance of the Antarctic krill, Euphausia superba, at South ... subsidiary during other studies of the pelagic ecosystem at South Georgia. Krill abundance at the island ... :  Acoustic estimates of krill abundance at South Georgia, 1981–1998 Approval:  Approved ... includes some previously published estimates arising from cruises where determination of krill density was ...

   Meeting Document : WS-AREA 48-98/9 : Auteur(s): A.S. Brierley, J.L. Watkins, C. Goss, M.T. Wilkinson and I. Everson (UK)

7. Population dynamics of the wandering albatross Diomedea exulans at Marion Island: long-line fishing and environmental influences

   , suggesting common factors operating at an ocean-basin scale. The average survival rate of adult females was ... dynamics of the wandering albatross Diomedea exulans at Marion Island: long-line fishing and environmental ... breeding population of the Vulnerable wandering albatross Diomedea exulans. The numbers of birds breeding ... result of both real changes in the size of the population and changes in the proportion of the population ...

   Meeting Document : WG-EMM-03/11 : Auteur(s): D.C. Nel, F. Taylor, P.G. Ryan and J. Cooper (South Africa)

8. Population dynamics of wandering albatrosses Diomedea exulans at sub-Antarctic Marion Island: longline fishing and environmental influences

   conditions at Marion Island were favorable. The implementation of international conservation initiatives to ... Abstract:  The Prince Edward Islands support the largest breeding population of the vulnerable ... Wandering Albatross Diomedea exulans. The number of birds breeding in this population has fluctuated over ... the past three decades and appears to be the result of both real changes in the size of the population ...

   Meeting Document : WG-FSA-02/16 : Auteur(s): D.C. Nel, P.G. Ryan and J. Cooper (South Africa)

9. Report of the UK Groundfish Survey at South Georgia (CCAMLR Subarea 48.3) in January/February 2019

   calculated at 50,897 tonnes with a lower 1-sided 95% interval estimate of 30,288 tonnes. This is lower than ... of the two northern strata and at the western end of Shag Rocks, with one high catch recorded in the ... :  Report of the UK Groundfish Survey at South Georgia (CCAMLR Subarea 48.3) in January/February 2019 ... Abstract:  The UK undertook a bottom trawl survey of CCAMLR sub-Area 48.3 on the FV Sil between ...

   Meeting Document : WG-FSA-2019/20 : Auteur(s): S. Gregory, P. Hollyman, T. Earl, A. Clement, J. Visagie, L. Featherstone and M. Belchier

10. Entanglement of Antarctic fur seals Arctocephalus gazella in man made debris at Bird Island, South Georgia during the 1997 winter and 1997/98 pup-rearing season

    Abstract:  Results of the survey of entanglements of Antarctic fur seals at Bird Island, South ... the need for sustained monitoring and continuing publicity aimed at preventing the disposal of debris ... at sea. Author(s):  Delegation of the United Kingdom Title:  Entanglement of Antarctic fur seals ... . Only seven seals were observed entangled in the winter, a drop of 59% from 1996. Four of these records ...

    Meeting Document : SC-CAMLR-XVII/BG/11 : Auteur(s): Delegation of the United Kingdom

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