Résultats de la recherche
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COLLAPSE OF SOUTH AFRICA’S PENGUINS IN THE EARLY 21ST CENTURY
years. This reduced the global population to 26 000 pairs, when including Namibian breeders, and led to ...
Meeting Document : WG-EMM-11/P8 : Auteur(s): R.J.M. Crawford, R. Altwegg, B.J. Barham, P.J. Barham, J.M. Durant, B.M. Dyer, D. Geldenhuys, A.B. Makhado, L. Pichegru, P.G. Ryan, L.G. Underhill, L. Upfold, J. Visagie, L.J. Waller and P.A. Whittington
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Preliminary assessment of the South Georgia toothfish stock, 2007
estimates year class strength which corresponds, in some years, with estimates made from the South Georgia ... higher than was estimated last year. 2. Improvements are made to the fit of tag data through (a ... retardation than larger fish, and that on average it is 1 year or more. 3. A new model is developed which uses ... be considered, and that the toothfish assessment is undertaken at periods of greater than one year ...
Meeting Document : WG-FSA-07/29 : Auteur(s): D.J. Agnew, R. Hillary and J. Pearce (United Kingdom)
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Review of CCAMLR activities on monitoring marine debris in the Convention Area
consecutive years, these are: Cape Shirreff, (Livingston Island, South Shetland Islands); Bird Island, (South ...
Meeting Document : SC-CAMLR-XXV/BG/09 : Auteur(s): Secretariat
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Review of CCAMLR activities on monitoring marine debris in the Convention Area
at King George Island for the fourth consecutive year. There are now 4 sites that have data for more ... than 3 consecutive years, these are: Cape Shirreff, (Livingston Island, South Shetland Islands); Bird ...
Meeting Document : SC-CAMLR-XXIII/BG/11 : Auteur(s): Secretariat
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Population of macaroni penguins Eudyptes chrysolophus at Marion Island, 1994/95 to 2002/03, with information on breeding and diet
fledged on average 0.46 chicks per year, an amount thought insufficient to maintain the population ... , macaroni penguins usually breed for the first time when aged about three years. From 1994/95–2002/03, pairs ...
Meeting Document : WG-EMM-03/15 : Auteur(s): R.J.M. Crawford, J. Cooper and B.M. Dyer (South Africa)
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Population, breeding, diet and conservation of Crozet shag Phalacrocorax [atriceps] melanogenis at Marion Island, 1994/95 to 2002/03
the mid 1980s. Crozet shags breed for the first time when aged three years. It is probable that about ...
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)
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Adélie penguin foraging behaviour and breeding success in seasons of contrasting krill availability (Mawson Coast, Antarctica)
to the diet in 2003 but was only a minor component in 2001. Differences between years were ...
Meeting Document : WG-EMM-03/44 : Auteur(s): J. Clarke, M. Tierney, S. Candy, S. Nicol, L. Irvine and K. Kerry (Australia)
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Preliminary assessment of Dissostichus eleginoides on the Heard Island Plateau (Division 58.5.2) based on a survey in May 2002
results for 2001. The pooled length-density distribution for the 2002 survey shows that the younger year ... classes (ages 2 and 3) are likely to be much weaker than the current juvenile year classes (ages 4 to 8 ... of recruitment being increased for some recent years. An assessment of the trend in illegal catches ...
Meeting Document : WG-FSA-02/70 : Auteur(s): A.J. Constable, R. Williams and T. Lamb (Australia)
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Reassessment of important population parameters for Dissostichus eleginoides on the Heard Island Plateau (Division 58.5.2) based on time series of surveys and fishery data
over 11 years on this stock with other surveys including part of this stock. This paper describes the ...
Meeting Document : WG-FSA-01/73 : Auteur(s): A.J. Constable, R. Williams, T. Lamb, I.R. Ball and E. van Wijk (Australia)
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Trends of Antarctic fur seal population at SSSI No. 32, Livingston Island, South Shetlands, Antarctica
of the simple model used, and the weighted effect of the continuos data set during these last 8 years ...
Meeting Document : WG-EMM-99/16 : Auteur(s): R. Hucke-Gaete, D. Torres, A. Aguayo, J. Acevedo and V. Vallejos (Chile)