Resultados de la búsqueda
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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)
quality considerations- in particular the increasing tendency to avoid catching "green” krill. These ... factors result in Catch-per-Day and Catch-per-Haul measures being unlikely to index krill abundance ... 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 ...
Meeting Document : WS-KCPUE-89/03 : Autor(es): D.S. Butterworth (South Africa)
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Distribution, abundance and acoustic properties of Antarctic silverfish (Pleuragramma antarcticum) in the Ross Sea
community of top predators in the shelf waters of the Ross Sea. In spite of their abundance and important ... role in Antarctic food chains, very little is known of many ecological and biological aspects of this ... . Tangaroa in February–March 2008. Multi-frequency acoustic data (12, 38, 70 and 120 kHz) allowed ... times present close to the bottom, where they were frequently caught in demersal trawls shallower than ...
Meeting Document : WG-FSA-10/P04 : Autor(es): R.L. O’Driscoll, G.J. Macaulay, S. Gauthier, M. Pinkerton and S. Hanchet
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Recommendations from a cross-sector workshop on krill fishing and conservation in the Scotia Sea and Antarctic Peninsula region
Abstract: In June 2014, the ICED programme, the British Antarctic Survey and WWF co-hosted a two ... day workshop entitled “Understanding the objectives for krill fishing and conservation in the Scotia ... progress in the management of the krill fishery; broadening participation in WG-EMM to include other ... from a cross-sector workshop on krill fishing and conservation in the Scotia Sea and Antarctic ...
Meeting Document : WG-EMM-14/12 : Autor(es): S. Hill, R. Cavanagh, R. Downie, C. Knowland and S. Grant (United Kingdom)
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Collaborating to eliminate Illegal, Unreported and Unregulated fishing in the Southern Ocean
enforcement actions taken against vessels suspected of engaging in Illegal, Unreported, and Unregulated (IUU ... ; participation in satellite enforcement initiatives; intensification of action on nationals of CCAMLR Members ... potentially involved in IUU fishing; and improvements in the effectiveness of the IUU vessel lists. Author(s ... in the Southern Ocean Microsoft Word File: cc-xxxiv-bg-23.docx Approval: Approved Secretariat ...
Meeting Document : CCAMLR-XXXIV/BG/23 : Autor(es): Submitted by ASOC and COLTO
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A review of tag-based stock assessments of the Antarctic toothfish Dissostichus mawsoni in Subarea 48.4
Abstract: The stock abundance of Antarctic toothfish in Subarea 48.4 is estimated using tag based ... specifically developed to reduce estimation bias in populations with low recaptures, a feature typical of the ... data available for this species in 48.4. During a review of assessment methodology two main issues have ... review of assessment data and methods in order to discuss and address the issues. Author(s): N. Walker ...
Meeting Document : WG-FSA-15/44 : Autor(es): N. Walker, M. Soeffker, V. Laptikhovsky and T. Earl (United Kingdom)
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Preliminary tag-recapture based population assessment of Antarctic toothfish in Subarea 48.4
Abstract: The stock of Antarctic toothfish (D. mawsoni) in CCAMLR subarea 48.4 is estimated from ... tagging returns to be 982 tonnes in 2018. Applying the CCAMLR agreed precautionary assumption of average ... , unchanged from the 2017/18 catch limit. Historically, a precautionary approach has been applied in treating ... catches in Subarea 48.4, and the surrounding regions, the Antarctic toothfish around the southern South ...
Meeting Document : WG-FSA-18/26 : Autor(es): T. Earl and A. Riley
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SPATIAL DISTRIBUTION AND AGE STRUCTURE OF THE ANTARCTIC TOOTHFISH (DISSOSTICHUS MAWSONI) IN THE ROSS SEA, ANTARCTICA
toothfish (Dissostichus mawsoni) are subject to an increasingly important commercial fishery in the Ross Sea ... -line fishery in the Ross Sea were superimposed on the habitat map and broken into discrete spatial ... areas. Differences in age distributions between these areas were found using ANOVA. These distributions ... and older fish were located on the continental slope. In addition, the older and most mature ...
Meeting Document : WG-FSA-08/18 : Autor(es): C.M. Brooks and J.R. Ashford (USA)
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Fish identification guide for Observers in CCAMLR krill fisheries
field guide designed to assist in improving the quality of observer by-catch data collected in the ... family specific keys for species found in the Southern Ocean. Members are invited to provide information ... Observers in CCAMLR krill fisheries Approval: Approved ...
Meeting Document : WG-EMM-13/07 : Autor(es): Secretariat
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A feedback management strategy for the krill fishery in Subarea 48.1
Abstract: We present a Stage-2 strategy for in-season feedback management (FBM) of the krill ... fishery in Subarea 48.1. This strategy is a combination of two strategies that were separately proposed ... to the WG-EMM in 2015 and is based on a broad foundation of work undertaken to address a suite of ... action items specified by the WG-EMM. A decision rule to adjust catches in groups of SSMUs (gSSMUs) is ...
Meeting Document : WG-EMM-16/48 : Autor(es): G.M. Watters, J.T. Hinke and C.S. Reiss
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Evidence of Vulnerable Marine Ecosystems documented via submarine in the Antarctic Sound and Gerlache Strait (Subarea 48.1)
Abstract: In order to adequately achieve CCAMLR’s conservation objectives and preserve the ... the benthic communities of this region that are characteristically mosaic in their distributions. As ... in CCAMLR’s Report of the Workshop on Vulnerable Marine Ecosystems (E-SC-XXVIII-A10, 2009) and as ... recognized by WG-EMM in previous years. Herein, evidence appropriate to the diverse characteristics of the ...
Meeting Document : WG-EMM-18/35 : Autor(es): S. Lockhart and J. Hocevar