Résultats de la recherche
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Changes in the foraging range of Adélie penguins as the breeding season progresses
Abstract: 1. This paper describes temporal changes in foraging range throughout the breeding ... season of Adélie penguins nesting at Béchervaise Island on the Mawson coast of Eastern Antarctica. A ... to produce maps of where the penguins travel to feed during each of the incubation, guard, crèche and ... pre-moult stages of the breeding cycle. 2. Penguins ranged furthest north during incubation and made ...
Meeting Document : WG-EMM-04/57 : Auteur(s): J. Clarke and L. Emmerson (Australia)
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On the problem of icefish (Champsocephalus gunnari) (Channichthyidae) and krill (Euphausia superba) interaction in the South Georgia area
Abstract: The interaction of icefish and krill in the South Georgia area has been analysed on the ... basis of the trawling, acoustic and juvenile fish surveys carried out by AtlantNIRO during 1986-2002 and ... the data of the national fishery. It is demonstrated that?.gunnari both at the early development ... stages and as adults utilize the pelagic forage resource, the bulk of which is constituted by krill. At ...
Meeting Document : WG-FSA-04/41 : Auteur(s): S.M. Kasatkina and Zh.A. Frolkina (Russia)
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Observations of demersal fish, benthic communities and seafloor composition of the Southern Ocean Atlantic sector from the ICEFISH 2004 cruise
Abstract: A multi-disciplinary research cruise in the Atlantic sector of the Southern Ocean was ... conducted during the 2004 austral winter as part of the International Collaborative Expedition to collect ... and study Fish Indigenous to Sub-antarctic Habitats (ICEFISH). Sampling during the ICEFISH cruise ... included demersal finfish, benthic invertebrates, and information of seafloor composition. The objectives ...
Meeting Document : WG-FSA-04/61 : Auteur(s): C.D. Jones, S.J. Lockhart and D.F. Doolittle (USA)
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Status of the South Georgia subarea (48.3) on satellite monitoring of the sea surface temperature, December 1999–January 2000
Abstract: Data of satellite monitoring (GOES-E) of the sea surface temperature (SST) and realtime ... data from vessels allow us to understand the hydrologic situation off South Georgia (Subarea 48.3) in ... December, 1999- January, 2000. Using the database of the SST maps for 1990-1991 and the current standard ... weekly SST maps, we have developed mean monthly SST maps, maps of the SST anomalies, and maps of ...
Meeting Document : WG-EMM-00/20 : Auteur(s): G. Vanyushin and A. Korobochka (Russia)
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Report on seabird by-catch outside the CCAMLR Convention Area recorded in the South African fisheries
Abstract: Given Resolution 22/XXV, paragraph 3 concerning the mortality of Convention Area ... Seabirds to the north of the Convention Area and the request by IMAF, SC-CAMLR XXVII/15 (Para 4.3) to ... report these, this document provides an overview of the South African fishing sectors most likely to ... impact on these seabirds. A summary is provided of the recorded number of mortalities for each fishery ...
Meeting Document : WG-IMAF-11/11 : Auteur(s): C. Heineken and P. Mullins (South Africa)
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A preliminary population status model for the Patagonian toothfish, Dissostichus eleginoides, on the Kerguelen Plateau (Divisions 58.5.1 and 58.5.2) using CASAL
Abstract: The Kerguelen Plateau (Statistical Divisions 58.51 and 58.5.2) supports the largest ... Patagonian toothfish (Dissostichus eleginoides) fishery in the Southern Ocean outside of the Atlantic sector ... region. This paper describes the development of a CASAL model incorporating data from research ... , commercial and illegal fishing activities in the French and Australian EEZs. This represents a substantial ...
Meeting Document : WG-SAM-11/20 : Auteur(s): S.G. Candy (Australia), A. Relot, G. Duhamel (France), D.C. Welsford, A.J. Constable, T.D. Lamb (Australia), P. Pruvost and N. Gasco (France)
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The Role of Fish as Predators of Krill (Euphausia superba) and Other Pelagic Resources in the Southern Ocean
Abstract: First attempts were made in the early 1980’s to estimate the krill and pelagic food ... consumption by Antarctic demersal fish. These estimates were extended to the mesopelagic realm and the high ... -Antarctic Zone in the late 1980’s and early 1990’s when these areas were exploited commercially and a larger ... number of food studies were conducted. Currently, the best estimates of krill consumption by fish are 23 ...
Meeting Document : CCAMLR-IWC-WS-08/09 : Auteur(s): Collins, M.A., Williams, R., Agnew, D.J., Kock, K.-H., Belchier, M., Shust, K.V., Welsford, D., Hanchet, S., Pshenichnov, L., Barrera-Oro, E.
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ADDRESSING UNCERTAINTY OVER THE IMPORTANCE OF ANTARCTIC TOOTHFISH AS PREY OF SEALS AND WHALES IN THE SOUTHERN ROSS SEA: A REVIEW
Abstract: An uncertainty heretofore has existed over the importance of Antarctic toothfish ... (Dissostichus mawsoni) as prey of top predators in the Ross Sea. We reviewed the literature to assess the ... show the seals do not eat toothfish hard parts, thus providing the reason that toothfish have seldom ... populations where toothfish do not occur. On the basis of data from an under ice observation platform, non ...
Meeting Document : WG-EMM-08/22 : Auteur(s): D. Ainley and D. Siniff (USA)
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The food and feeding ecology of the white-chinned petrel Procellaria aequinoctialis at South Georgia
Abstract: The diet of the white-chinned petrel at Bird Island, South Georgia was studied during ... the chick-rearing period in 1986 by quantitative analysis (by weight, frequency of occurrence and ... number of individuals) of regurgitated or lavaged adult stomach contents. Antarctic krill was the most ... important constituent of the diet, comprising over 90% of prey items and forming 47% of the diet by weight ...
Meeting Document : WG-CEMP-94/14 : Auteur(s): J.P. Croxall, A.J. Hall, H.J. Hill, A.W. North and P.G. Rodhouse (United Kingdom)
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SPATIAL DISTRIBUTION AND AGE STRUCTURE OF THE ANTARCTIC TOOTHFISH (DISSOSTICHUS MAWSONI) IN THE ROSS SEA, ANTARCTICA
Abstract: The Ross Sea has been geologically characterized by tectonic and glacial processes ... the availability of habitat is critical to the long-term viability of the population. Antarctic ... toothfish (Dissostichus mawsoni) are subject to an increasingly important commercial fishery in the Ross Sea ... assess the availability of habitat for Antarctic toothfish a benthic habitat map of the Ross Sea was ...
Meeting Document : WG-FSA-08/18 : Auteur(s): C.M. Brooks and J.R. Ashford (USA)