Search results
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Report from the Workshop on Krill-fishery Management for Subareas 48.1 and 48.2
Abstract: The aim of the Workshop (see SC-CAMLR-XXXVII/24) was to explore how management ... limited to, feedback management and the use of research zones including those within the proposed D1MPA ... , N. Bransome, S. Davie, P.E. Skogrand, R. Werner, A. Kavanagh, C. Johnson and J. Arata (On behalf of ...
Meeting Document : SC-CAMLR-38/BG/18 : Author(s): P.N. Trathan, G. Watters, N. Bransome, S. Davie, P.E. Skogrand, R. Werner, A. Kavanagh, C. Johnson and J. Arata (On behalf of the Workshop Organising Committee)
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Exploring variability in the locations used by the krill fishery in Area 48 in relation to intra- and inter-annual variability in seasonal sea ice
Abstract: We present preliminary analyses of krill fishery catch data covering the period ... relocate by late June. Much of the effort relocates to Subarea 48.3, where the shelf and shelf-break ... location in Subarea 48.1 has shifted in recent years with most catch being taken south of the South ... north and west of the South Shetlands. We will continue to explore the relationship between catch ...
Meeting Document : WG-EMM-14/11 : Author(s): J. Silk, S.L. Hill and P.N. Trathan (United Kingdom)
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Age-structured production model for toothfish at South Georgia
through the introduction of a new annual selectivity function, modelled as a unimodal, algebraically ... decaying function of age, with three easily interpretable parameters. When only a single selectivity curve ... reaches preset parameter boundaries. With one or two parameters of the selectivity estimated only once the ... the CPUE very closely. Convergence problems were noted for the highly parameterised versions of this ...
Meeting Document : WG-FSA-SAM-05/18 : Author(s): A. Payne, G.P. Kirkwood, R. Hillary and D.J. Agnew (United Kingdom)
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Phytoplankton standing stocks in relation to krill in Antarctic waters
, consisting of 32 diatoms and one dinoflagellete. Chaetoceros and Nitzschia spp. dominated the phytoplankton ... proliferation of certain phytoplankton species to bloom condition. Zooplankton biomass showed wide fluctuation ... to 2400 kg, the percentage of kill occurrence varied from 0 to 100% at stations sampled. The ... phytoplankton and zooplankton in the region of krill swarm however showed active feeding by the latter on these ...
Meeting Document : WG-EMM-98/34 : Author(s): X.N. Verlecar, R. Vijayakumar, F. Saldhana and L. Martins (India)
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Fisher training exchanges in seabird mitigation
operating in the New Zealand fishery, which had a proven record of seabird-friendly fishing techniques. The ... report documents the process and outcomes of the first exchange to occur, which was for the placement of ...
Meeting Document : WG-FSA-05/47 : Author(s): S. Waugh (New Zealand)
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An idea to incorporate potential recruitments in the krill density model
involved uncertainties of age 1 krill. Present document improves the model by taking the uncertainties in ... accepted values of mortality M (0.8-1.0), the potential proportional recruitment should be larger than the ... in the model, dramatic variation of densities after 1994/95 season could not be clearly explained ...
Meeting Document : WG-EMM-99/51 : Author(s): S. Kawaguchi and M. Naganobu (Japan)
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On marine protected areas in the Southern Ocean
Abstract: The details on designation of marine protected areas in the CCAMLR region are ... of climate change influence on ecosystems. The MPA Questionnaire is proposed for consideration to ... make easier the understanding of the Southern Ocean MPA designation process and problems. Author(s ...
Meeting Document : WS-MPA-11/13 : Author(s): G.P. Milinevsky and S.B. Kovalonok (Ukraine)
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Can we improve the Scientific Committee’s ability to provide unequivocal management advice on fish stocks in the Convention Area?
knowledge of the stocks and improve the Scientific Committee’s ability to provide less controversial ... management advoice. However, a level of uncertainty higher than in fish stock assessment in other parts of ...
Meeting Document : WG-FSA-90/25 : Author(s): Convener, Working Group on Fish Stock Assessment
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Consultation on Secretariat catch and effort monitoring: Secretariat proposals arising from the feedback from Members
to make a number of changes to its existing practices, particularly around providing information to ... reporting of catch data and one to develop a stable, documented warehouse of CCAMLR data. Author(s): CCAMLR ...
Meeting Document : CCAMLR-XXXVII/BG/22 : Author(s): CCAMLR Secretariat
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Integrated weight longlines with paired streamer lines – best management practice for demersal longline fisheries: preliminary results
Abstract: Minimizing the time gear is available to seabirds by increasing the sink rate of ... practical seabird mitigation device using multiple criteria: catch rates of seabirds and fish, seabird ... behaviour, sink rate of the gear and breaking strength. All mitigation technologies dramatically decreased ... difference did not manifest itself in the context of commercial fishing as increased line separations. We ...
Meeting Document : WG-FSA-06/52 : Author(s): K. Dietrich, E. Melvin and L. Conquest (USA)