Résultats de la recherche
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Criteria for aging the otoliths of Dissostichus eleginoides from South Georgia (Subarea 48.3) and an analysis of aging precision
Abstract: A prerequisite for validation of an aging technique is a clear set of consistent aging ... criteria to test. Two sets of criteria ate presented for aging the otoliths of Dissostichus eleginoides ... occur at several scales and vary both within and between otoliths. Pairwise comparisons of repeat ... within and between observers, reflecting the complexity of the otolith structure. Aging using criteria C1 ...
Meeting Document : WG-FSA-98/52 : Auteur(s): J. Ashford (United Kingdom) and S. Wischniowski (Canada)
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Changes in population size of large Procellariiformes breeding in the French sub-Antarctic islands: potential influence of southern fisheries and particularly long lining
indicate that these declines are mainly the result of increased adult mortality. This high rate of ... mortality has been suspected to be the result of mortality incurred in long-line fisheries. Satellite ... tracking studies of breeding birds and band recoveries of non breeding birds indicate that during and ... EEZ. The decrease in the fishing effort of the Japanese fishery during the recent years has probably ...
Meeting Document : WG-IMALF-94/11 : Auteur(s): Henri Weimerskirch and Pierre Jouventin (France)
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Development of an underwater setting method for surface longliners, to minimise the accidental capture of seabirds
Abstract: In response to the Department of Conservation's concerns for the accidental ... capture of seabirds by Surface Long Liners and subsequent contract 9513004, several concepts of bait ... reaches its determined depth. At this point in time the carry over action of the capsule and retrieval ... action would release the bait. This design concept proved worthy of construction and trial. Sea trials of ...
Meeting Document : WG-FSA-97/54 : Auteur(s): Bentley, N., Smith, M.
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Results of a hydroacoustic survey of Antarctic krill populations in CCAMLR Division 58.4.1 carried out in January to April 1996
CCAMLR Division 58.4.1 for the purposes of estimating overall biomass (B0). The krill biomass in the area ... surveyed (873,000 km2) was estimated to be 6.67 million tonnes with a CV of 27%. Krill were more abundant ... in the west of the survey area 800-1200E than in the 120°-150°E region. The majority of the krill ... detected were found in the top 80 metres of the water column. Author(s): Higginbottom, I., de la Mare, W ...
Meeting Document : WG-EMM-96/28 : Auteur(s): Higginbottom, I., de la Mare, W., Pauly, T., Nicol, S.
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Analysis of the diet of Champsocephalus gunnari in Subarea 48.3, Dr E. Holmberg survey, February 1995
Abstract: About 1300 stomach contents of the icefish Champsocepha1us gunnari caught in the ... Subarea 48.3 in February 1995, were analyzed using the frequency of occurrence (%) method. Krill ... to be similar to that observed in the E. Holmberg survey in February/March 1994: common levels of ... krill availability indicated by frequency of occurrence, but, on the other hand, high proportions of ...
Meeting Document : WG-FSA-95/36 : Auteur(s): Marschoff, E., Barrera-Oro, E., Casaux, R.
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Use of current velocity data from fram to investigate the large scale transport of krill in the Scotia Sea
Abstract: Current velocity data from a single time realisation of the FRAM model are presented ... for particular areas of the Scotia Sea. The regions are based on the CCAMLR sub-areas and also include ... boundaries over the upper 250m of the water column. These have been combined with estimates of krill density ... and standing stocks to consider the large scale flux of krill through the regions and estimate ...
Meeting Document : WS-Flux-94/05 : Auteur(s): E.J. Murphy (United Kingdom)
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Homogeneity of body length composition of Antarctic krill within the commercial haul
Abstract: The homogeneity of krill length composition in commercial trawl catches (hauls) was ... investigated by comparing length compositions from different parts of the same haul. There was no significant ... difference (P>0.05) in 53 out of 60 hauls. Therefore it is concluded that sampling from one part of the ... haul provides a reasonable estimate of length composition in the entire haul as a whole. In contrast to ...
Meeting Document : WG-KRILL-90/11 Rev1 : Auteur(s): T. Ichii (Japan)
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Some aspects of the relation between Antarctic krill abundance and CPUE measures in the Japanese krill fishery. (Component of SC-CAMLR-VI/BG/4)
Abstract: The history of the Japanese krill fishery is reviewed briefly. Important aspects of the ... time data may be needed to assess the density of swarms in a concentration, but may be difficult to ... record in practice, and a number of other factors may complicate any analysis. The possibility of ... indexing the extent of the krill distribution through routine oceanographic monitoring merits attention. A ...
Meeting Document : WS-KCPUE-89/03 : Auteur(s): D.S. Butterworth (South Africa)
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Report of the 1st and the 2nd stage of research fishing conducted by Russian Federation in SSRU 882A in 2010–2012
Abstract: In accordance with decision of CCAMLR Scientific Committee in 2010 and in 2011 years ... Russian vessel “Chio Maru 3” (“Antei” Ltd.) has been conducted research fishing of toothfish. The primary ... objective of the works in the SSRU was estimation of toothfish’s distribution density and carrying out of ... . Gordeev (Russia) Title: Report of the 1st and the 2nd stage of research fishing conducted by Russian ...
Meeting Document : WG-SAM-12/08 : Auteur(s): E.F. Kulish and I.I. Gordeev (Russia)
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Report of the First Workshop on the Identification of Priority Areas for MPA Designation within Domain No. 1 (CCAMLR). Valparaiso 2012
, between 28 May and 1 June. At the workshop assisted delegates from 6 countries plus a number of NGOs and ... representatives from the fishing industry. Main outcomes of the Workshop were: an agreement on sharing data layers ... for conducting the analysis; a concerted list of conservation objectives to be included in the ... analyses; a review of existing and missing data; a definition of the cost-layer to be included; a ...
Meeting Document : WG-EMM-12/69