Résultats de la recherche
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Proposal for a CCAMLR sponsored research survey to monitor abundance of pre-recruit Antarctic toothfish in the southern Ross Sea
Abstract: The exploratory fishery for Dissostichus spp. has now been operating for 14 years in Subarea 88.1 and for nine years in Subarea 88.2. Associated research has led to an assessment of the fisheries potential yield, but a source of ongoing uncertainty in the stock assessment concerns
Meeting Document : WG-SAM-11/16 : Auteur(s): S.M. Hanchet, S. Mormede, S.J. Parker and A. Dunn (New Zealand)
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Estimates of the tag loss rates for single and double tagged toothfish (Dissostichus mawsoni) fishery in the Ross Sea
Abstract: The rate at which tags are lost from tagged toothfish is an important parameter in modelling of the Antarctic toothfish (Dissostichus mawsoni) populations in Subarea 88.1 and 88.2. The toothfish stocks in these areas have been assessed using data from tag-release and recapture
Meeting Document : WG-SAM-11/18 : Auteur(s): A. Dunn, M.H. Smith (New Zealand), D.J. Agnew (UK) and S. Mormede (New Zealand)
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Report on the results of exploratory research fishing for crabs in Subarea 48.2 on board FV Tamango in the 2009/10 season
Abstract: Exploratory research voyage of F/V 'TAMANGO' proceeded from March, 23 to May, 8, 2010. Three areas were explored during the voyage: Patagonian shelf (Statistic Subarea 41.3.1), South Orkney Islands shelf (CCAMLR Subarea 48.2) and the North Scotia Ridge. Exploratory pot-line
Meeting Document : WG-SAM-11/19 : Auteur(s): V.A. Bizikov and S.E. Anosov (Russia)
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A preliminary population status model for the Patagonian toothfish, Dissostichus eleginoides, on the Kerguelen Plateau (Divisions 58.5.1 and 58.5.2) using CASAL
Abstract: The Kerguelen Plateau (Statistical Divisions 58.51 and 58.5.2) supports the largest Patagonian toothfish (Dissostichus eleginoides) fishery in the Southern Ocean outside of the Atlantic sector. Analysis of genetic, demographic and tagging data indicates that toothfish form a
Meeting Document : WG-SAM-11/20 : Auteur(s): S.G. Candy (Australia), A. Relot, G. Duhamel (France), D.C. Welsford, A.J. Constable, T.D. Lamb (Australia), P. Pruvost and N. Gasco (France)
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A characterisation of the toothfish fishery in Subareas 88.1 and 88.2 from 1997–98 to 2010–11
Abstract: The exploratory fishery for Dissostichus spp. has now been operating for fifteen years in Subarea 88.1 and for ten years in Subarea 88.2. This report summarises the timing, depth, and location of fishing together with the catch of Dissostichus spp. and bycatch species by year for the
Meeting Document : WG-FSA-11/45 : Auteur(s): M.L. Stevenson, S.M. Hanchet, S. Mormede and A. Dunn (New Zealand)
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Descriptive analysis of the toothfish (Dissostichus spp.) tagging programme in Subareas 88.1 & 88.2 for the years 2000–01 to 2010–11
Abstract: Descriptive analyses of the toothfish tagging programme in Subareas 88.1 and 88.2 are updated, including summaries of data for the 2011 season. Overall, a total of 28 458 Antarctic toothfish have been reported as released and 1417 recaptured, and 1124 Patagonian toothfish released and 67
Meeting Document : WG-FSA-11/46 : Auteur(s): S. Mormede, A. Dunn and S.M. Hanchet (New Zealand)
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Estimating unaccounted fishing mortality in the Ross Sea and 88.2C–G bottom longline fisheries targeting Antarctic toothfish
Abstract: Stock assessments rely upon estimates of the total mortality resulting from fishing activities. The level of mortality resulting from the loss of sections of bottom longline gear in the Ross Sea region and Subarea 88.2 Antarctic toothfish (Dissostichus mawsoni) fisheries is not currently
Meeting Document : WG-FSA-11/48 : Auteur(s): D.N. Webber and S.J. Parker (New Zealand)
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Pilot study using electronic satellite tags to determine movements of Antarctic toothfish in the Ross Sea region
Abstract: New Zealand will deploy four pop-off satellite transmitters on Antarctic toothfish along the Ross Sea continental slope in January 2012. They will be programmed to pop-off the fish, float to the surface, and transmit in December 2012. The purpose of this paper is to provide an
Meeting Document : WG-FSA-11/49 : Auteur(s): S. Parker (New Zealand)
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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.
Meeting Document : WG-FSA-11/50 : Auteur(s): J.M. Fenaughty (New Zealand) and J. Brown (United Kingdom)
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plotImpact – software for producing image plots of spatially referenced impact assessments
Abstract: Software is presented for the automated production of standardised image plots of spatially referenced bottom fishing impact assessments. This software is submitted to WG-FSA to assist the Secretariat or CCAMLR Working Groups in the production of integrated bottom fishing impact
Meeting Document : WG-FSA-11/51 Rev. 1 : Auteur(s): D.N. Webber (New Zealand) and J.P. McKinlay (Australia)