Résultats de la recherche

1. 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% pa.), 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 : SC-CAMLR-XII/BG/21 : Auteur(s): Delegation of United Kingdom

2. Diet of grey-headed albatrosses at the Diego Ramírez Islands, Chile: ecological implications

   Abstract:  The diet of grey-headed albatrosses at Diego Ramírez, Chile, was analyzed and compared ... suggests that M. hyadesi plays an important role in the breeding performance of grey-headed albatrosses at ... Diego Ramírez. Low presence of M. hyadesi in grey-headed albatrosses’ diet at South Georgia in 2000, a ... to that of the sympatric black-browed albatross. Diet composition was inferred from an analysis of ...

   Meeting Document : WG-FSA-04/12 : Auteur(s): J. Arata (Chile), G. Robertson (Australia), J. Valencia (Chile), J.C. Xavier (UK) and C.A. Moreno (Chile)

3. Entanglement of Antarctic fur seals Arctocephalus gazella in man-made debris at Bird Island, South Georgia during the 1992 winter and 1992/93 pup-rearing season

   males, the main element of the population seen ashore at Bird Island at this time of year. In the summer ... changes in the foraging ecology of fur seals at South Georgia nor by obvious changes in fishing practice ... Kingdom Title:  Entanglement of Antarctic fur seals Arctocephalus gazella in man-made debris at Bird ... Abstract:  Surveys of Antarctic fur seals entangled in man-made marine debris were carried out for ...

   Meeting Document : SC-CAMLR-XII/BG/06 : Auteur(s): Delegation of United Kingdom

4. Assessments of by-catch in trawl fisheries at Heard and McDonald Islands

   Paper Title:  Assessments of by-catch in trawl fisheries at Heard and McDonald Islands Abstract ... (Statistical Division 58.5.2) to significantly affect, in the long term, spawning biomass of three taxa caught ... skates). The long-term annual yield for each of the three taxa was estimated using the generalised yield ... biomass estimates from surveys in the region from 1990 to 1993 and a limited amount of biological data ... ASSESSMENTS OF BY-CATCH IN TRAWL FISHERIES AT HEARD AND MCDONALD ISLANDS A.J. Constable, R. Williams and ... to those that maintain the by-catch at 'tolerable' levels relative to the catch of the target ... Measures 109/XV and 11O/XV provisions aimed at protecting by-catch species in the course of these ... at least five days.' Neither of the two approaches indicated above makes a direct appraisal of ...

   Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 231–243 : Auteur(s): Constable, A.J., R. Williams and W.K. de la Mare

5. 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)

6. 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)

7. 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

8. 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

9. 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)

10. 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)

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