Résultats de la recherche
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Environmental gradients of the Antarctic krill (Euphausia superba Dana) in the whole of the Antarctic Ocean
Abstract: The implications between a regional and whole distribution of the Antarctic krill ... find out the relationship between the geographical distribution of E. superba and its oceanographical ... gradients, an environmental index was introduced. The environmental index was the integrated value of water ... temperature from the surface to 200m in depth Z. As the results, the area of the high concentration of E ...
Meeting Document : WG-KRILL-93/29 : Auteur(s): M. Naganobu and Y. Komaki (Japan)
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Possible effects of different levels of fishing on krill on predators - some initial modelling attempts
Meeting of the CCAMLR's WG-Kril1 and WG-CEMP in 1992 to address this issue. First. estimates are made ... of the parameters of predator survival rates as functions of krill abundance, by considering a krill ... . Computations based on this model indicate that variability in the annual recruitment of krill results in ... . However, the analyses also raise a number of questions about the proper interpretation of the available ...
Meeting Document : WG-KRILL-93/43 : Auteur(s): D.S. Butterworth and R.B. Thomson (South Africa)
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REPORT OF THE CCAMLR OBSERVER TO THE INTERSESSIONAL MEETING ON THE FUTURE OF THE INTERNATIONAL WHALING COMMISSION (IWC) (6 to 8 March 2008, London, UK)
Abstract: The intersessional meeting focused on the organisation and future of the IWC. The ... meeting identified a range of options for streamlining the working methods and practices of the Commission ... result of these discussions, the Commission was able to develop consensus documents on both improved ... practices and a path towards resolution of substantive issues affecting the IWC. The intersessional meeting ...
Meeting Document : CCAMLR-XXVII/BG/31 : Auteur(s): CCAMLR Observer (United Kingdom)
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Preliminary reports on abundance and biological information of toothfish in Division 58.4.3b by Shinsei Maru No. 3 in the 2011/12 and proposal of the consecutive survey in the 2012/13
of toothfish in the Division 58.4.3b (BANZARE Bank), using a commercial bottom longline vessel ... stability of the vessel was wasted. Unexpected low fish catches in the preceding survey in Ob-Lena Bank ... during the same cruise and the wasteful use of baits also lead to the decline of the stability of the ... safety of voyage. Shinsei Maru Trot line system with modified configurations was used as fishing gear for ...
Meeting Document : WG-SAM-12/15 Rev. 1 : Auteur(s): K. Taki, T. Iwami, M. Kiyota and T. Ichii (Japan)
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Analysis of the by-catch of Channichthys rhinoceratus and Lepidonotothen squamifrons from the fisheries at Heard Island and the McDonald Islands (Division 58.5.2)
longline fishery, but form the most abundant bycatch of the trawl fisheries after skates (Bathyraja spp ... bycatch of the mackerel icefish fishery than L. squamifrons. Over the 15 years of the fisheries ... , approximately 20 t of C. rhinoceratus and 9 t of L. squamifrons were caught annually. The commercial and ... research data analysed in this study shows that both species are widespread over the plateau in waters of ...
Meeting Document : WG-FSA-12/24 : Auteur(s): G.B. Nowara, D.C. Welsford, S.G. Candy and T.D. Lamb (Australia)
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Further development of pairwise tag detection performance index and its application to the stock assessment of toothfish in the Ross Sea fishery
of Antarctic toothfish (Dissostichus mawsoni) in Subareas 88.1 and 88.2 to determine abundance and ... ) could lead to an over-estimate of the stock biomass. In this paper we develop further an index of vessel ... for the inter-annual spatial and temporal variability of commercial fishing operations from which tags ... subset of vessels for which there is confidence in their tag-recapture data. Finally, we apply these ...
Meeting Document : WG-SAM-13/34 : Auteur(s): S. Mormede (New Zealand)
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Plan of research program of the Russian Federation in Subarea 48.5
Abstract: Closed mostly within the Weddell Sea Subarea 48.5 is one of the closed data-poor CCAMLR ... Subareas. Stock assessment of this area should be calculated basing on the newest and adequate data ... . Despite the difficult ice conditions the Weddell Sea is the largest enclosed near-continental sea of the ... current system. Such similarity gives hope that the Weddell Sea could become one of the most promising ...
Meeting Document : WG-SAM-15/18 : Auteur(s): Delegation of the Russian Federation
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Is current management of the Antarctic krill fishery in the Atlantic sector of the Southern Ocean precautionary?
Abstract: This paper is a revised version of WG-EMM-15/28, which uses a question and answer ... format to explain the management of the Antarctic krill (Euphausia superba) fishery in the subareas 48.1 ... to 48.4, and current knowledge about the state of the regional krill stock. The revisions provide a ... new, precautionary assessment of exploitation rate in this fishery. The effective regional catch limit ...
Meeting Document : WG-EMM-16/21 : Auteur(s): S. Hill, A. Atkinson, C. Darby, S. Fielding, B. Krafft, O.R. Godø, G. Skaret, P. Trathan and J. Watkins
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Distribution and abundance of skates (Bathyraja spp.) on the Kerguelen Plateau through the lens of the toothfish fisheries
Abstract: Three species of skate, Bathyraja eatonii, B. irrasa and B. murrayi, are commonly taken ... mainly with depth. Off Heard Island and McDonald Islands (HIMI), in the southern part of the KP, B ... . eatonii and B. irrasa were most abundant to the north and northwest of Heard Island, out to the edge of ... the Australian Exclusive Economic Zone, and were caught down to depths of 1790 m and 2059 m ...
Meeting Document : WG-FSA-16/P03 : Auteur(s): G.B. Nowara, P. Burch, N. Gasco, D.C. Welsford, T.D. Lamb, C. Chazeau, G. Duhamel, P. Pruvost, S. Wotherspoon and S.G. Candy
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By-catch analysis as a part of progress report for the research fishery of Dissostichus spp. in Subarea 48.6 by Japan and South Africa during 2012/13–2016/17
Abstract: This paper reports the preliminary results of by-catch analysis as a part of progress ... report for the research fishery of Dissostichus spp. in Subarea 48.6 by Japan and South Africa during ... by-catch occurred in most longline research operations, the number of by-catch individuals was less ... than 100 individuals in most of the operations. In most of longline operation, by-catch weight was less ...
Meeting Document : WG-SAM-17/44 : Auteur(s): T. Okuda, S. Somhlaba and T. Ichii