Résultats de la recherche
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Preliminary assessment of mackerel icefish (Champsocephalus gunnari) in the vicinity of Heard Island and McDonald Islands (Division 58.5.2), based on a survey in July 2007, using the generalised yield model
Abstract: A survey of mackerel icefish, Champsocephalus gunnari, was undertaken in Division ... 58.5.2 in the vicinity of Heard Island in July 2007 to provide the information for an assessment of short ... -term annual yield in the 2007/2008 CCAMLR season. This paper provides a preliminary assessment of yield ... strong 1+ year class recruiting to the population has led to an increase in the estimated biomass of ...
Meeting Document : WG-FSA-07/47 : Auteur(s): D.C. Welsford (Australia)
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Demography of Antarctic krill in the Lazarev Sea (Subarea 48.6) and the Elephant Island area (Subarea 48.1) in 2004
Abstract: Standardized krill net sampling surveys were conducted in the Lazarev Sea (Subarea 48.6 ... ) in April 2004 and in the Elephant Island area (Subarea 48.1) in January and February/March 2004 ... . Krill densities in the Elephant Island area were below the long-term average which mark a substantial ... decline after the good krill years in 2001 and 2002. Krill density was lower in the Lazarev Sea, even ...
Meeting Document : WG-EMM-04/23 : Auteur(s): V. Siegel (Germany), V. Loeb (USA), B. Bergström (Sweden), S. Schöling (Germany), M. Haraldsson (Sweden), J. Kitchener (Australia), M. Vortkamp (Germany)
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Protection of young fish and spawning aggregations in the fishery for Champsocephalus gunnari in Subarea 48.3 (South Georgia): a discussion
Abstract: The need to protect young fish and spawning aggregations in fisheries generally, and ... specifically in the C. gunnari fishery in Subarea 48.3, is reviewed. Mechanisms available to achieve these ... objectives are discussed, including the measures put in place by CCAMLR to date. These measures are re ... -examined in the light of new information, and a strategy for the future protection of young fish and ...
Meeting Document : WG-FSA-99/52 : Auteur(s): G. Parkes (United Kingdom)
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Diet composition and observations on reproduction of Champsocephalus gunnari in Subarea 48.3 in March/April 1996, Dr Eduardo Holmberg survey
Abstract: The diet composition of the icefish Champsocephalus gumari caught in the Subarea 48.3 ... in March/April 1996 was analyzed using Frequency of occurrence (F%) and coefficient "Q" ... items, known as an important alternative food in years of krill scarcity, were ingested only ... occasionally (Themisto gaudichaudii, F= 1 8%, Q= 1 % at SG; mysids, F= 11 %, Q= 1.1 % at SR) or in negligible ...
Meeting Document : WG-FSA-96/28 Rev. 1 : Auteur(s): Marschoff, E., Barrera-Oro, E., Casaux, R.
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Research plan for the exploratory fisheries for Dissostichus spp. in Subarea 48.6 and Divisions 58.4.1, 58.4.2 and 58.4.3a in 2013/14
Abstract: Japan has notified its intention to participate in the exploratory fisheries for ... Dissostichus spp. in Subarea 48.6 and Divisions 58.4.1, 58.4.2 and 58.4.3a in 2013/14. The research plan ... details the objectives, rationale and activities proposed for research fishing, in accordance with ... Conservation Measures 21-02 and 24-01. A progress report on the research fishing in Subarea 48.6 in 2012/13 was ...
Meeting Document : WG-SAM-13/09 : Auteur(s): Submitted by the Secretariat on behalf of Japan
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Research plan for exploratory fishing for toothfish (Dissostichus spp.) in 2015/16 in Division 58.4.2
Abstract: Exploratory fishing for toothfish (Dissostichus spp.) in Division 58.4.2 began in 2003 ... this Division. In 2014, the fishery was limited to one Japanese and one Spanish flagged vessel using ... longlines only, but there was no fishing activity. France notifies its wish to collaborate in this research ... fishery with the other participants over the coming years in order to participate in the tagging program ...
Meeting Document : WG-SAM-15/15 : Auteur(s): Delegation of France
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Revised research plan for the exploratory longline fishery for Dissostichus spp. in 2015/16 in Division 58.4.2
Abstract: Exploratory fishing for toothfish (Dissostichus spp.) in Division 58.4.2 began in 2003 ... this Division. In 2014, the fishery was limited to one Japanese and one Spanish flagged vessel using ... longlines only, but there was no fishing activity. France notifies its wish to collaborate in this research ... fishery with the other participants over the coming years in order to participate in the tagging program ...
Meeting Document : WG-FSA-15/74 : Auteur(s): A. Rélot-Stirnemann (France)
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Continuation of multi-Member research on the Dissostichus eleginoides exploratory fishery in 2018/19 in Division 58.4.3a by France and Japan
Abstract: In Division 58.4.3a, since 2012, research fishing has been conducted in the research ... Dissostichus spp. in Division 58.4.3a (WG-FSA-16/55) was presented to WG-FSA-16, which included research ... objectives, methods and milestones in accordance with Conservation Measure 41-06 and associated measures. In ... their exploratory fisheries in Division 58.4.3a over the coming years in order to contribute to the ...
Meeting Document : WG-SAM-18/08 : Auteur(s): Delegations of France and Japan
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Shags in Antarctica: their feeding behaviour and ecological role in the marine food web.
Abstract: Feeding behaviour, ecological role in the marine food web and population trend of the ... Antarctic Shag Phalacrocorax bransfieldensis and the South Georgia Shag P. georgianus in Antarctica are ... analysed. The diving depths and duration registered in these shags are the deepest and longest among all ... flying birds in Antarctica and match deep dives performed by small Antarctic penguins. Shag individuals ...
Meeting Document : WG-FSA-05/P5 : Auteur(s): Casaux, R., Barrera-Oro, E.R.
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Fish in the diet of breeding Antarctic shags Phalacrocorax bransfieldensis at four colonies in the Danco Coast, Antarctic Peninsula
, Notothenia coriiceps was the main prey in all of the sampling sites, followed in similar importance by G ... . gibberifrons in Cape Herschel, Primavera Island and Midas Island and in less importance by H. antarcticus in Py ... Point. Between colonies there were marked differences in the size of the fish consumed. The largest ... this last colony. The differences in the composition of the diet may be related to the different ...
Meeting Document : WG-EMM-00/9 : Auteur(s): R. Casaux, A. Baroni and E. Barrera-Oro (Argentina)