Resultados de la búsqueda
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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 ... , 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 : Autor(es): 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
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 : Autor(es): 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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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 : Autor(es): Delegation of Spain
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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
parameters and recruitment of Patagonian toothfish, Dissostichus eleginoides, in the Heard Island region. A ... new survey of the Heard Island Plateau was undertaken in May- June 2001, providing the sixth survey ... over 11 years on this stock with other surveys including part of this stock. This paper describes the ... -estimated in the past. An estimate of natural mortality indicates that mortality of young fish, ages 3-8 ...
Meeting Document : WG-FSA-01/73 : Autor(es): A.J. Constable, R. Williams, T. Lamb, I.R. Ball and E. van Wijk (Australia)
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Variation or reproductive performance of seabirds and seals at South Georgia, 1976–1986 and its implication for Southern Ocean monitoring studies
Orkney Islands) are summarised and reviewed. Breeding success of the Wandering Albatross, which breeds in ... / significantly. The other species at South Georgia, which breed in summer and for which krill forms a significant ... proportion of their diet, have shown major fluctuations in some or all of: breeding population size, breeding ... particularly poor reproductive performance by almost all species. Difficulties in provisioning offspring were ...
Meeting Document : WG-CEMP-87/13 : Autor(es): J.P. Croxall, T.S. McCann, P.A. Prince and P. Rothery (United Kingdom)
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Dynamic model of krill Euphausia superba swarm
Abstract: During the Italian Antarctic Expeditions to the Ross Sea, in the years 1989- 1994 ...
Meeting Document : WG-EMM-95/68 : Autor(es): Kalinowski, J., Azzali, M.
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The fish fauna of the Argentine Islands region (Antarctica; 12 UAE 2007–2008) and morphometrical changeability of Notothenia coriiceps (Richardson, 1844)
subdominant in the previous years, but during our researches Notothenia rosii prevailed already. Biological ...
Meeting Document : WG-FSA-12/P06 : Autor(es): V.N. Trokhymets, V.A. Tymofyeyev and J.S. Perechrest
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Abundance, distribution, energy density and trophic position of euphausiids during winter 2012: preliminary results from the first US AMLR Winter Survey
euphausiids in a changing ecosystem. Oceanographic sampling includes hydrographic measurements as well as ... water column properties. Future years will include more detailed sampling using a multi-net tucker trawl ... Abstract: The US AMLR Program has established a 5 year winter oceanographic and biological ...
Meeting Document : WG-EMM-13/40 : Autor(es): C. Reiss and C. Jones (USA)
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Trends of Antarctic fur seal population at SSSI No. 32, Livingston Island, South Shetlands, Antarctica
Abstract: We update in this paper the previously reported model for the Antarctic fur seal ... developed at Cape Shirreff during 1998/99, but we could not census the San Telmo Islets. In this regard, we ... had to model the population at the latter site, in order to have a complete estimate of the population ... . From this, we estimated an overall increase of 17% in the total population, including in this figure a ...
Meeting Document : WG-EMM-99/16 : Autor(es): R. Hucke-Gaete, D. Torres, A. Aguayo, J. Acevedo and V. Vallejos (Chile)
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Slow recovery of previously depleted demersal fish at the South Shetland Islands, 1983–2010
closed this fishery in 1990. We report changes in size and abundance of the commercially exploited ... declined from 1983 to 1991, and an increase in mean size during 1983-84 is consistent with weak cohorts ... during preceding years. Modal age changed from 2-3 to 6-7 yr. Length data of G. gibberifrons, available ... stability (1992-1994), a sharp increase in length and a continued decline in relative abundance indicated ...
Meeting Document : WG-FSA-12/P01 : Autor(es): E.R. Marschoff, E.R. Barrera-Oro, N.S. Alescio and D.G. Ainley