Résultats de la recherche
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A conceptual model of the krill fishery
Abstract: The behaviour patterns of Japanese krill fishery vessels in Area 48 were analysed using ... questionnaires on the reasons why the vessel changed their fishing grounds, which were sent out to of the ... , krill density, krill, size, ice condition, transshipment, and salp-by catch accounted for 95.6% of the ... factors such as greenness or ice condition could become important. A general picture of the seasonal ...
Meeting Document : WG-EMM-04/51 : Auteur(s): S. Kawaguchi, S. Nicol (Australia), K. Taki and M. Naganobu (Japan)
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Short note: time series of Drake Passage Oscillation Index (DPOI) from 1952 to 2003, Antarctica
Abstract: An assessment of the environmental processes influencing variability in the recruitment ... and density of Antarctic krill (Euphausia superba DANA) is important as variability in krill stocks ... krill recruitment and density in the Antarctic Peninsula area with an environmental factor; strength of ... , between Rio Gallegos (51°32’S, 69°17’W), Argentina, and Base Esperanza (63°24’S, 56°59’W), at the tip of ...
Meeting Document : WG-EMM-03/46 : Auteur(s): M. Naganobu and K. Kutsuwada (Japan)
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Studies of seabirds and seals at Bouvetøya 1998/99
work on seabirds and seals was carried out, including diving behaviour of penguins, and studies of diet ... and pup production of fur seals. The following CEMP-parameters were studied in Chinstrap Penguin and ... ), duration of foraging trips (A5), breeding success (A6), chick diet (A8), and breeding chronology (A9). For ... Antarctic Fur Seal, data were collected on the duration of adult female foraging/attendance cycles (C1) and ...
Meeting Document : WG-EMM-00/13 : Auteur(s): K. Isaksen (Norway), O. Huyser, S. Kirkman, R. Wanless and W. Wilson (South Africa)
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Brief results of research fishing in Subarea 88.3 in the 2010/11 season
. Total amount of set hooks is 87096. Research catching was carried out in SSRU B, C, and D. In SSRU A ... sets had not took place because of complicated ice conditions. The catch was totally analyzed for its ... fish food analysis). According to the catch’s length variation, 30 fishes of different length have been ... distribution and nutrition of toothfish in subarea 88.3.B-D were collected 240 otolithes for age identification ...
Meeting Document : WG-SAM-11/09 : Auteur(s): Delegation of the Russian Federation
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AGE ESTIMATION AND LEAD-RADIUM DATING OF ANTARCTIC TOOTHFISH (DISSOSTICHUS MAWSONI)
commercial fishery in the Southern Ocean, yet many of their life history characteristics, including vital ... estimated ages, the radioactive disequilibrium of lead-210 and radium-226 in otolith cores was measured and ... to at least 39 years of age. Estimated and radiometric ages were in close agreement, confirming age ... estimation criteria and an annual periodicity of otolith growth zones. Von Bertalanffy growth function ...
Meeting Document : WG-FSA-08/17 : Auteur(s): C.M. Brooks, A.H. Andrews, J.R. Ashford, G.M. Cailliet, N. Ramanna and C. Lundstrom (USA)
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Survey of Antarctic fur seals Arctocephalus gazella in the South Shetland Islands, Antarctica, during the 1986/87 austral summer
Abstract: A survey of Antarctic fur seals in the South Shetland Islands, Antarctica, during the ... recolonization of rookery sites following 19th Century commercial exploitation. Twelve fur seal pupping sites ... were identified, some of which had not previously been reported. The largest pupping sites are at Telmo ... Island and Cape Shirreff, on the north coast of Livingston Island. Total fur seal pup production in the ...
Meeting Document : SC-CAMLR-VI/BG/18 : Auteur(s): J.L. Bengtson, L.M. Ferm (USA), T.J. Härkönen (Sweden), E.G. Schaner and B.S. Stewart (USA)
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Recent trends in numbers of Crozet shags breeding at the Prince Edward Islands
Abstract: Numbers of Crozet shags Phalacrocorax [atriceps] melanogenis breeding at Marion Island ... were similar trends in numbers breeding and breeding success of gentoo penguins Pygoscelis papua, which ... influenced by food availability. Numbers of Crozet shags breeding at Prince Edward Island approximately ... doubled between the summers of 2001/02 and 2008/09. In 2008/09, some 600 pairs of Crozet shags were ...
Meeting Document : WG-EMM-10/P02 : Auteur(s): R.J.M. Crawford, P.G. Ryan, B.M. Dyer and L. Upfold
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Spatio-temporal dynamics of the Antarctic krill fishery within fishing hotspots in the Bransfield Strait and South Shetland Islands
Abstract: The present document is an update of document EMM-16/52, presenting refine analysis of ... the krill fishing hotspots and a description of the daily CPUE pattern for the krill fishery. This ... hotspots (FHs), where the fleet took 48 to 57% of the seasonal catch, and are relatively persistent ... spatial distribution of the fleet is modulated by a dome-shaped daily CPUE. When CPUE decreased, the fleet ...
Meeting Document : WG-EMM-18/P11 : Auteur(s): F. Santa Cruz, B. Ernst, J.A. Arata and C. Parada
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Predator trophic hotspots in the Indian sector of the subantarctic Southern Ocean: how do they overlap with marine protected areas?
Abstract: The Indian sector of the subantarctic region hosts large populations of top predators ... which are listed at various level of vulnerability by the IUCN and which are monitored by several bio ... pelagic species of albatross, penguins and pinnipeds. Merging our analysis with previous results, we find ... ) through a bottom up effect. When mapped on jurisdictions, this network of hotspots appears to be only ...
Meeting Document : WS-SM-18/07 : Auteur(s): M. O’Toole, S. Sergi, A. Baudena, C. Cotté, C. Bost, C. Guinet, H. Weimerskirch, M.A. Hindell, P. Koubbi and F. d’Ovidio
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List of Italian research projects that contribute to the Research and Monitoring Plan for the Ross Sea region Marine Protected Area
Abstract: This paper provides a summary of research projects led by Italy in the frame of PNRA ... environmental and ecological processes and interactions. The intention of this paper is to present the ... (Italian Programme of Researches in Antarctica) that are relevant to monitoring and research in relation to ... the Ross Sea Region. Author(s): Delegation of Italy Title: List of Italian research projects that ...
Meeting Document : SC-CAMLR-XXXVII/BG/26 : Auteur(s): Delegation of Italy