Search results
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A review of conversion factors used in CCAMLR toothfish fisheries
be required to better understand the sources of this variability. The results suggest that a ... reconciliation between the reported catch for a vessel and the weight of product reported in a catch document ... submitted to the CDS should be based on a conversion of the ‘green weight’ for each haul in the C2 data to a ... ): CCAMLR Secretariat Title: A review of conversion factors used in CCAMLR toothfish fisheries Approval ...
Meeting Document : WG-FSA-15/02 : Author(s): CCAMLR Secretariat
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Proposal for a krill biomass survey for krill monitoring and management in CCAMLR Division 58.4.2-East
Abstract: Australia plans to conduct a krill biomass survey in Division 58.4.2 East during 23 ... January to 25 March 2021. The survey will estimate krill biomass with a view to update the precautionary ... catch limit for krill. A krill observatory mooring system will also be deployed during the survey to ... and predators. A deeper understanding of all these factors will support the design of a tractable and ...
Meeting Document : WG-EMM-2019/03 : Author(s): S. Kawaguchi, M. Cox, N. Kelly, L. Emmerson and D. Welsford
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A proposal for streamlining the work of the Scientific Committee for the Conservation of Antarctic Marine Living Resources
Abstract: The work of the Scientific Committee is expanding with a duplication of some functions ... in different working groups. There is also a need to give time to emerging issues for which there is ... a CCAMLR context. It is proposed that the working groups of the Scientific Committee be revised to ... develop methods for (a) assessing fish, krill and bycatch populations, (b) status of predator and other ...
Meeting Document : WG-EMM-05/35 : Author(s): A.J. Constable (Australia)
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A feedback approach to Ecosystem Based Management: model predictive control of the Antarctic krill fishery
to develop a feedback approach to aid Ecosystem Based Management (EBM) of the Antarctic krill fishery ... rules based on their predicted performance in a model of the controlled system. Here we use MPC to ... develop a robust control strategy for a simulation model of a spatially resolved predator-prey system. We ... is a promising approach for addressing spatially-resolved multiple-objective problems with high ...
Meeting Document : WG-EMM-12/19 : Author(s): S. Hill and M. Cannon (United Kingdom)
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A preliminary model-based approach for estimating natural mortality of Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea Region
Abstract: Natural mortality (M) is a key parameter in fisheries stock assessments, relating ... directly to the productivity of a stock, stock status, and estimated precautionary yields. In the Ross Sea ... the stock assessment model. We undertake a preliminary investigation of estimating natural mortality ... using the assessment model from the Ross Sea region from 2017. We estimated natural mortality as a ...
Meeting Document : WG-SAM-2019/04 : Author(s): B. Moore, S. Mormede, S. Parker and A. Dunn
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A first attempt at an assessment of the Patagonian toothfish (Dissostichus eleginoides) resource in the Prince Edward Islands EEZ
reviewed briefly. It is characterised by very large illegal catches and a sharply declining longline CPUE ... trend. Application of a simple age-structured production model provides robust indication that the ... spawning biomass has been depleted to at most a few percent only of its pre-exploitation level. Projections ... are discussed. Author(s): A. Brandão, B.P. Watkins, D.S. Butterworth and D.G.M. Miller (South Africa ...
Meeting Document : WG-FSA-01/54 : Author(s): A. Brandão, B.P. Watkins, D.S. Butterworth and D.G.M. Miller (South Africa)
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PECHEKER-SIMPA – A tool for fisheries management and ecosystem modeling
Abstract: Biodiversity studies produce a large amount of data. Few are well-documented, compiled ... , readily available and easily accessible. The development of a specific database for the Kerguelen Plateau ... . SIMPA is a database which covers all data from MNHN scientific expeditions, collections and fisheries ... features of SIMPA, making it a desirable tool for fisheries management and ecosystem modeling in the region ...
Meeting Document : WS-MPA-11/P02 : Author(s): P. Pruvost, A. Martin, G. Denys and R. Causse
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An update on the development of a management procedure for the toothfish (Dissostichus eleginoides) resource in the Prince Edward Islands vicinity
Abstract: Two Operating Models (OMs) reflecting an “Optimistic” and a “Pessimistic” current ... a constant future catch suggest that the two scenarios will only be qualitatively distinguished in ... for the “Pessimistic”, but not the “Optimistic” case. Accordingly the performance of a simple MP ... to secure a faster increase in the TAC for the “Optimistic” case, and some recovery in abundance for ...
Meeting Document : WG-FSA-SAM-06/12 : Author(s): A. Brandão and D.S. Butterworth (South Africa)
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A revision of yield and catch controls for managing the mackerel icefish (Champsocephalus gunnari) fishery in the vicinity of Heard Island and McDonald Islands
Abstract: A recent 2000 survey of mackerel icefish in the vicinity of Heard Island enabled a ... previous years, it is dominated by a strong age 2 year class. Estimates of yield for the Heard Island ... fishing seasons. The results of the 2000 survey confirm the need to retain a closure to fishing on Shell ... to enter the fishery prior to assessments occurring. Author(s): A. Constable, R. Williams, T. Lamb ...
Meeting Document : WG-FSA-00/41 : Author(s): A. Constable, R. Williams, T. Lamb and E. van Wijk (Australia)
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Recommendation to commence discussions on a way to plan and organise the work of the Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR)
approaches to give adequate attention to issues, CCAMLR has found it a challenge to progress many of these ... Commission initiate discussions on this topic, including by considering options for undertaking a priority ... options, including proposals for a priority-setting exercise, with a view to the Commission agreeing on a ... on a way to plan and organise the work of the Commission for the Conservation of Antarctic Marine ...
Meeting Document : CCAMLR-XXXIV/18 : Author(s): Delegation of Australia