Résultats de la recherche
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Initial development of operating models for testing management procedures for the toothfish (Dissostichus eleginoides) resource in the Prince Edward Islands vicinity
recommendations for this resource. These will aim to provide an appropriate balance between avoiding risk of ... Abstract: Three Operating Models (OMs) reflecting an optimistic, an intermediate, and a ... pessimistic current status for the toothfish resource in the Prince Edward Islands are developed. These are ... planned for use for initial trials of candidate Management Procedures (MPs) to provide future TAC ...
Meeting Document : WG-FSA-SAM-05/15 : Auteur(s): A. Brandão and D.S. Butterworth (South Africa)
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Assessment of the status of the Champsocephalus gunnari stock in the South Georgia area for the 1990/91 season and TAC calculations for the 1991/92 season
. gunnari is advised for an optimal regime of fishing operations at a level of F0.1 = 0.65. Author(s): P.S ... Abstract: An adaptive approach was used to assess the Champsocephalus. gunnari stock in Area 48.3 ... . Values of catch/effort by age group and by year of fishing were used in conjunction with abundance ... fishing regime brought about by a change in mesh size (90 mm). A TAC of 59.4 thousand tonnes for C ...
Meeting Document : WG-FSA-91/27 : Auteur(s): P.S. Gasiukov (USSR)
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“Sailbuoy for krill” – a concept for autonomous commercial and scientific monitoring of the krill fishing in Antarctica
drone technology now available through the Sailbuoy concept, offers new opportunity for an industry ... and will be tailored to support data for Feedback management and for a more environmentally efficient ... an acoustic modem. We plan the first test in 2019 and it is the goal of this paper to establish a ... Title: “Sailbuoy for krill” – a concept for autonomous commercial and scientific monitoring of the ...
Meeting Document : WG-EMM-18/15 : Auteur(s): O.R. Godø, G. Pedersen, D. Peddie, G. Skaret, A. Lowther, F. Grebstad and A. Lohrmann
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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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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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A proposed process for the management of model updates and software versions for stock assessment used within CCAMLR with the example of the CASAL software
Abstract: We propose a process by which to select the version of software generally used for ... stock assessments in CCAMLR, with the specific example of the CASAL software used for stock assessment ... author to demonstrate that the latest development version performs as expected. As an example, the latest ... published version of CASAL should be used by default for stock assessments unless particular features ...
Meeting Document : WG-SAM-14/32 : Auteur(s): S. Mormede and A. Dunn (New Zealand)
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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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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)
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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 ... and aging, will be used to develop a stock assessment for these divisions and inform the necessary ...
Meeting Document : WG-FSA-15/47 Rev. 1 : Auteur(s): Delegation of Australia