Résultats de la recherche
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A revised assessment of the impact of the krill fishery on penguins in the South Shetlands
Abstract: This paper is a revision of the assessment of the competition between the Japanese ... krill (Euphausia superba) fishery and penguins (WG-Krill-93/7). Main fishing areas were confined to the ... slope and shelf to the north of either Livingston or Elephant Islands. In contrast, main foraging areas ... of penguins are considered to be formed in areas to the north of King George, Nelson and Robert ...
Meeting Document : WG-Joint-94/17 : Auteur(s): T. Ichii, M. Naganobu and T. Ogishima (Japan)
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Towards an assessment of the stock of the ommastrephid squid Martialia hyadesi in the Scotia Sea: data from predators
and Ommastrephidae. Fisheries for the latter have been characterised by dramatically fluctuating ... exploitation of the sub-Antarctic ommastrephid species Martialia hyadesi will be attempted in the future. This ... squid is an important component of the diet of several species of albatross and the southern elephant ... predators. Estimated annual consumption by known predators in the Scotia Sea is 326098- 330642 tonnes, 94 ...
Meeting Document : SC-CAMLR-IX/BG/13 : Auteur(s): Delegation of United Kingdom
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Descriptive analysis of the Antarctic toothfish (Dissostichus mawsoni) tagging scheme in the Ross Sea for the years 1997/98 to 2003/04
Abstract: A descriptive analysis of the toothfish tagging programme carried out in the Ross Sea ... since 2001 is presented for the first time. Tag-release and tag-recapture data are presented for both ... Zealand vessels were unavailable at the time of the analysis. A total of 4903 Antarctic toothfish have ... been released and 89 recaptured, and 443 Patagonian toothfish released and 9 recaptured. For the last ...
Meeting Document : WG-FSA-SAM-05/10 : Auteur(s): A. Dunn, S.M. Hanchet and K. Maxwell (New Zealand)
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An initial analysis of the characteristics of Antarctic krill taken by the commercial fishery and Antarctic fur seals during the winters of 2002 and 2003 at South Georgia
Abstract: We present an initial analysis of the fishing locations, fishing depth and length ... -frequency distribution of krill at South Georgia during the winter of 2002 and 2003 and compare these with ... the length-frequency distribution and frequency of occurrence of krill in the diet of Antarctic fur ... seals. There were significant differences in the mean size of krill taken by vessels/measured by ...
Meeting Document : WG-EMM-04/62 : Auteur(s): K. Reid, D.J. Agnew, N.L. Warren and E. Owen (United Kingdom)
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CCAMLR measures regulating the tagging of Dissostichus species, metrics used to assess vessel tagging performance, the potential for some anomalous results, and general recommendations on tagging; a view from the hauling room
Abstract: The background to the current CCAMLR toothfish tagging programme is reviewed and recent ... performance measures implemented by CCAMLR to control and monitor the tagging of toothfish (Dissostichus ... species) in exploratory fisheries carried out within the Convention Area are described. Following the ... first season of implementation we describe several circumstances which will cause anomalies in the tag ...
Meeting Document : WG-FSA-11/50 : Auteur(s): J.M. Fenaughty (New Zealand) and J. Brown (United Kingdom)
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The influence of the shape of meshes on the selective properties of trawls with special reference to Antarctic krill
Abstract: The results of investigations are presented on selective properties of experimental ... trawls with a square- and diamond-shaped mesh, on the traumatic rate of krill passed through a mesh and ... remained in the trawl,on the survival rate. When trawls with a square-shaped mesh were used the highest ... screening rate was observed in the cod end instead of the belly,the selective properties of the retaining ...
Meeting Document : SC-CAMLR-VIII/BG/09 : Auteur(s): Delegation of USSR
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Notes on the use of virtual population analysis for stock assessment of the mackerel icefish, Champsocephalus gunnari (Lönnberg, 1906) in Subarea 48.3 for the 1990/91 and 1991/92 seasons
Abstract: Following on from the apparent failure to satisfactorily assess the status of the C ... . gunnari population in Subarea 48.3 at WG-FSA-91 using VPA, attempts were made to re-work the analysis ... using Laurec-Shepherd and ADAPT tuning techniques, from 1991 back to 1977. The predicted age structure ... , dominated in recent years by the 1987 year class (1 year olds in 1988), was quite robust, despite the use of ...
Meeting Document : WG-FSA-92/27 : Auteur(s): G. Parkes (United Kingdom)
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Results of the research fishing activities conducted by Chile in Management A of Subarea 48.3 from 2005–2008: the importance of conserving the big older fishes
Abstract: This research makes a contribution to the Agenda Item 8 of the WG-FSA. (Biology ... , ecology and demography of target and by-catch species) and shows the response of the local population of ... Dissostichus eleginoides (TOP) from the Area management A (subarea 48.3), after 4 year of closure (2004 to 2008 ... ). We noted an increase in the CPUE overtime, mainly associate with the increase in the median size of ...
Meeting Document : WG-FSA-10/35 : Auteur(s): C.A. Moreno and P. Rubilar (Chile)
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The dynamic of krill fishery and the environment in the Antarctic Peninsula Subarea (48.1)
Abstract: The dynamic of krill fishery in the Subarea 48.1 and its relation to the environment ... variability was analyzed. It was revealed that the dynamic of ААО indices (Antarctic Oscillation Index) used ... as an indicator of the inter-annual and long-period fluctuations of hydrometeorological conditions at ... high latitudes of the Southern Hemisphere was traced through the climatic changes of the environmental ...
Meeting Document : WG-EMM-13/32 : Auteur(s): S.M. Kasatkina, V.N. Shnar and S.N. Burikin (Russia)
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A proposal for streamlining the work of the Scientific Committee for the Conservation of Antarctic Marine Living Resources
Abstract: The work of the Scientific Committee is expanding with a duplication of some functions ... insufficient time at present in the existing working groups, such as consideration of marine protected areas in ... a CCAMLR context. It is proposed that the working groups of the Scientific Committee be revised to ... streamline the work and to help reduce the number of groups needing to be attended by our experts. The ...
Meeting Document : WG-EMM-05/35 : Auteur(s): A.J. Constable (Australia)