Résultats de la recherche

1. Diet overlap among top predators at the South Orkney Islands, Antarctica

   variable diets. This variability may be explained by fluctuations in krill availability. In years when ... Abstract:  In order to understand interspecific trophic relationships among top predators, we ... analyzed diet information on nine bird and two seal species collected in the austral summer from 1996 to ... fish, which increases the re-occurrence of these preys in the diets. Our samples suggest the recovery ...

   Meeting Document : WG-EMM-18/04 : Auteur(s): M.L. Bertolin and R. Casaux

2. Leslie analyses of commercial snow crab trap data: a comparative study of catchability coefficients

   Abstract:  If we could determine the relationship between catch rates in a trap survey and ... historical Leslie analyses of commercial catch data obtained over several years and quantify the relationship ...

   Meeting Document : WS-CRAB-93/13 : Auteur(s): J.M. Hoenig, E.G. Dawe, D.M. Taylor, M. Eagles and J. Tremblay (USA)

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

   ) decreased. Black-browed Albatrosses follow an annual breeding cycle, with over 80% of birds successful in ... rearing a chick and 75% of those failing to do so returning to breed the next year, 5- 10% of both ... categories delaying one further year (even when still paired). Grey-headed Albatrosses are essentially ... Island, South Georgia for 17 consecutive years (1975-1991). Over this period almost all the Grey-headed ...

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

4. Dietary segregation of krill-eating South Georgia seabirds

   performance was indicative of a year of good availability of krill around South Georgia. In such circumstances ... success and information on diet in 5-10 other years suggest that in 1986 seabird diet and reproductive ... period in 1986. For five species, Antarctic krill Euphausia superba was the main food (39-98% by mass ... , was different between all seabird species, reflecting some combination of differences in foraging ...

   Meeting Document : WG-EMM-97/15 : Auteur(s): Prince, P.A., Croxall, J.P., Reid, K.

5. Streamlining the work of the Scientific Committee for the Conservation of Antarctic Marine Living Resources (SC-CAMLR)

   its working groups and maybe workshops in mid-year, and a short meeting of the Scientific Committee ... Abstract:  In recent years, the Scientific Committee has been dealing with a great diversity of ... at present.  In our view, this stems from constraints on the way SC-CAMLR does work. In this paper ... , we describe these constraints and combine thoughts given to the CCAMLR Symposium in May 2015 on how ...

   Meeting Document : WG-EMM-15/59 : Auteur(s): G. Watters (USA), A. Constable and D. Welsford (Australia)

6. The CAML/SCAR-MarBIN Biogeographic Atlas of the Southern Ocean

   Census of Antarctic Marine Life (www.caml.aq), with 19 CAML-dedicated cruises in the whole Southern Ocean ... ) south of 40°S. The hard copy version in large format will be extended by a dynamic online version on the ... biodiversity hotspots. At the end of five years of extensive biodiversity exploration and assessment by the ...

   Meeting Document : CCAMLR-XXX/BG/11 : Auteur(s): Submitted by SCAR

7. 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 ... determination, but uncertainty in sex ratios can lead to considerable Type I and Type II errors. Lack of ... knowledge about the sex ratio between years makes combining the data a very doubtful procedure and use of a ...

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

8. Population of macaroni penguins Eudyptes chrysolophus at Marion Island, 1994/95 to 2002/03, with information on breeding and diet

   from about 405 000 pairs in 1983/84 and 434 000 pairs in 1994/95 to about 356 000 pairs in 2002/03. Two ... demonstration of a significant decrease in the overall population. Numbers of occupied nests at other colonies ... decreased from 79 000 in 1994/95 to 31 000 in 2002/03. At three small colonies there was a significant ... fledged on average 0.46 chicks per year, an amount thought insufficient to maintain the population ...

   Meeting Document : WG-EMM-03/15 : Auteur(s): R.J.M. Crawford, J. Cooper and B.M. Dyer (South Africa)

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

   at subantarctic Marion Island decreased by 68% from 841 pairs in 1994/95 to 272 pairs in 2002/03. The ... birds breeding in any given season. The decreases coincided with a period of warming and reduced ... precipitation at Marion Island and with a decrease in the number of gentoo penguins Pygoscelis papua breeding ... there. Both these seabird species forage inshore and there is considerable overlap in their diets ...

   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. REPORT OF SANCTIONS APPLIED BY SPAIN

    the action taken by Spanish Authorities in relation to the vessels Trosky (formerly Paloma V), Chilbo ... San 33 and Corvus, included in the CCAMLR-IUU list. 1. With regard to the vessels Corvus and Chilbo ... San 33, neither of them flagged to Spain – which were included in the CCAMLR list of illegal vessels ... did not provide proof or evidence in support of this action. However, as a result of the inspection of ...

    Meeting Document : CCAMLR-XXIX/BG/37 : Auteur(s): Delegation of Spain

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