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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 : Автор(ы): 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 : Автор(ы): 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 : Автор(ы): 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 : Автор(ы): 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 : Автор(ы): T. Okuda, S. Somhlaba and T. Ichii
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Modelling Movement of Antarctic Krill (MMAK): the importance of retention, dispersal and behaviour for krill distribution – a project update
Antarctic Wildlife Research Fund, to improve current understanding of the regional and local-scale processes ... that influence the distribution of Antarctic krill in CCAMLR Area 48, focussing in particular on the ... investigate the impact of physical and behavioural processes on the distribution of krill in this area, at ... scales relevant to the krill fishery and predators. Preliminary analysis of a 20-year time series of ...
Meeting Document : WG-EMM-18/06 : Автор(ы): S.E. Thorpe, E.F. Young, E.J. Murphy, O.R. Godø and A.H.H. Renner
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Scientific background document in support of the development of a CCAMLR MPA in the Weddell Sea (Antarctica) – Version 2018 – Reflection on the recommendations by WG-EMM-17 and SC-CAMLR-XXXVI
raised at WG-EMM-17 and SC-CAMLR-XXXVI (SC-CAMLR-XXXVI, Annex 6, §§ 5.1-5.14). The implementation of ... recommendations and questions raised by WG-EMM-17 and SC-CAMLR-XXXVI was already presented at the Workshop of ... Spatial Management (Cambridge, UK, 2 to 6 July 2018), where the great amount of work was acknowledge and ... the updates were welcomed. With this document, the Delegation of Germany would also like to inform the ...
Meeting Document : SC-CAMLR-XXXVII/BG/15 : Автор(ы): Delegation of Germany
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Stable isotope analysis of Southern Ocean fish tissue samples to investigate trophic linkages of Antarctic toothfish (Dissostichus mawsoni)
to determine C and N stable isotope composition. Values of?15N and?13C suggested that a minimum of ... Atlantic, and sperm whales from the Gulf of Mexico. There was high variance in?15N and?13C values for each ... of the species sampled, on the order of 3-4 ‰ for?15N (which equates to one trophic level) and 4 ... ‰ for?13C (suggesting multiple primary sources of organic matter). For each species where sufficient ...
Meeting Document : WG-EMM-07/19 : Автор(ы): M.H. Pinkerton, S. Bury, S.M. Hanchet and D. Thompson (New Zealand)
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Incidences of gillnet fishing in the Convention Area reported through the Scheme of International Scientific Observation
Abstract: Observers deployed in terms of the CCAMLR Scheme of International Scientific ... Observation are required to record incidences of IUU fishing. Since the CCAMLR 2003/4 season 15 reports of IUU ... on some of the fishing grounds in this area. These reports are supported by both photographic ... evidence of vessels hauling gillnets and sections of gillnet retrieved by licensed longliners. Author(s ...
Meeting Document : CCAMLR-XXVI/BG/30 : Автор(ы): Delegation of South Africa
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Review of rattail and skate by-catch and analysis of rattail standardised CPUE from the Ross Sea toothfish fishery in Subarea 88.1 from 1997/98 to 2001/02
Abstract: Little is known about the bycatch of skates, rays and macrourids in the target longline ... fishery for toothfish in the Ross Sea. Following concerns about the accuracy of reporting of bycatch ... reviewed and the accuracy of data recording was investigated. Current systems were considered to be ... . Insufficient data have previously been available to evaluate the usefulness of a standardized CPUE analysis of ...
Meeting Document : WG-FSA-02/40 : Автор(ы): R.G. Blackwell and S.M. Hanchet (New Zealand)
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