Résultats de la recherche
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Estimating fishing gear selectivity for trawlers using length-frequency data from concurrent commercial trawl and longline fishing for Patagonian toothfish in Division 58.5.2 and the ratio of their hazard functions
Abstract: The upper-arm of the length-dependent fishing selectivity function for trawlers fishing ... for Patagonian toothfish around Heard Island (Division 58.5.2) was modelled as the exponential of a ... from commercial operations of each of trawlers and longliners fishing concurrently for 3 seasons ... assuming that, for the upper range of lengths, fish are fully selected by longliners but not by trawlers ...
Meeting Document : WG-FSA-06/35 : Auteur(s): S.G. Candy (Australia)
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Research plan for the exploratory fisheries for Dissostichus spp. in Subarea 48.6 in 2014/15
were inconsistent for Dissostichus spp. in other blocks. As we proposed at the WG-FSA meeting last year ... the latest CCAMLR C2 and observer data toward the development of research plan for the 2014/15 ... exploratory fishery of toothfish in Subarea 48.6. The stock sizes for five research blocks (486_1, 486_2 ... using effective data on tagging experiment and appropriate reference areas for the CPUE method ...
Meeting Document : WG-SAM-14/01 : Auteur(s): Delegation of Japan
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Potential for using CCAMLR VMS data for compliance analysis and data quality assurance
process to utilise VMS data for data-quality assurance in relation to catch data. This represents a change ... quality assurance processes in order to ensure that the VMS can be used with an appropriate degree of ... confidence for compliance analysis and improving the quality of other georeferenced data. Author(s): CCAMLR ... Secretariat Title: Potential for using CCAMLR VMS data for compliance analysis and data quality assurance ...
Meeting Document : SC-CAMLR-XXXIV/BG/19 : Auteur(s): CCAMLR Secretariat
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Planned updates for the integrated stock assessment for the Heard Island and McDonald Islands Patagonian toothfish (Dissostichus eleginoides) fishery in Division 58.5.2
assessment for the Heard Island and McDonald Islands Patagonian toothfish (Dissostichus eleginoide s) fishery ... mortality caused by longline gear loss, and an adjustment to the maturity function to be used in the ... assessment. Author(s): P. Ziegler and J. Dell Title: Planned updates for the integrated stock assessment ... for the Heard Island and McDonald Islands Patagonian toothfish (Dissostichus eleginoides) fishery in ...
Meeting Document : WG-SAM-2019/27 : Auteur(s): P. Ziegler and J. Dell
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Why does it necessary to consider krill flux for developing the feedback management strategy for krill fishery in the Area 48?
Abstract: The authors discussed the necessity to investigate krill flux for estimating the local ... 1962 to 2002 are shown as an example. Author(s): S. Kasatkina and V. Shnar (Russia) Title: Why does ... it necessary to consider krill flux for developing the feedback management strategy for krill fishery ...
Meeting Document : WG-EMM-15/24 : Auteur(s): S. Kasatkina and V. Shnar (Russia)
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Proposal to trial daylight setting on longliners fishing for Dissostichus eleginoides for a 10 day period during the middle of winter during the fishing season in Subarea 48.3
requesting the option to be able to set during daylight in Subarea 48.3 for safety reasons. Recurrent ... as an avoidance technique. This paper proposes a 10 day trial (per vessel) of daylight setting ... Kingdom) Title: Proposal to trial daylight setting on longliners fishing for Dissostichus eleginoides for ...
Meeting Document : WG-IMAF-11/08 : Auteur(s): J. Brown (United Kingdom)
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A candidate process for managing the krill fishery at a local scale for krill predators, particularly in the early phases of the development of the krill fishery
strength in a given year to determine an adjustment of the long-term annual catch for the area in the ... Abstract: In this paper, we develop a candidate management system for the krill fishery suitable ... for achieving objectives for krill and its predators in local areas. We also indicate how this ... changing ecosystem. A local area decision rule is proposed for using krill biomass density and recruitment ...
Meeting Document : WG-EMM-15/55 Rev. 1 : Auteur(s): A. Constable, S. Kawaguchi, C. Southwell, L. Emmerson, W. de la Mare, P. Ziegler, D. Welsford and J. Melbourne-Thomas (Australia)
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Model diagnostics for the Antarctic krill assessment for Subarea 48.1
the configurations and additional diagnostic methods for the base case. An additional diagnostic based ... assessment being developed to set catch limits for Antarctic krill in Subarea 48.1. A "base-case" ... description of the base case and differently-weighted configurations with a table of likelihood components for ... on using simulated data as a "self-test" of model consistency for the estimates of derived ...
Meeting Document : WG-FSA-15/60 : Auteur(s): D. Kinzey, G.M. Watters and C.S. Reiss (USA)
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Research plan for exploratory fishing for toothfish (Dissostichus spp.) in East Antarctica (Divisions 58.4.1 and 58.4.2) by Australia
Conservation Measure 41–01 to support a proposal for an Australian vessel to participate in exploratory fishing ... Abstract: Exploratory fishing for toothfish (Dissostichus spp.) in East Antarctica (Divisions ... rules remain to be determined for these Divisions. Accordingly, a research plan has been developed under ... for these divisions and inform the necessary considerations of spatial structure, biomass and ...
Meeting Document : WG-SAM-15/10 : Auteur(s): Delegation of Australia
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PROPOSED APPROACH FOR THE IDENTIFICATION OF IMPORTANT MARINE AREAS FOR CONSERVATION: USING ‘MARXAN’ SOFTWARE TO SUPPORT SYSTEMATIC CONSERVATION PLANNING
(Margules & Pressey, 2000) might be used to identify important areas for conservation of biodiversity in ... the worked example is not to identify areas for protection or management at this stage, but rather to ... that would be required to undertake such an analysis. ‘MARXAN’ software (Ball & Possingham, 2000 ... areas towards meeting conservation targets, using example datasets for pelagic species, bioregions and ...
Meeting Document : WG-EMM-08/49 : Auteur(s): S.M. Grant, J. Tratalos and P.N. Trathan (United Kingdom)