Résultats de la recherche
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DEVELOPMENT OF A METHODOLOGY FOR DATA QUALITY ASSESSMENT
biological sampling data from a fishing trip. In particular these measures aim to quantify the prevalence of ... assist in assessing which data from a trip should be used in an assessment, and can also guide how these ... data can best be used.The quality of tag data is hard to assess. A methodology is developed to use data ... development of this method is intended to provide a consistent basis for selecting the tagging data set that ...
Meeting Document : WG-SAM-08/13 : Auteur(s): D.A.J. Middleton and A. Dunn (New Zealand)
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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 : Auteur(s): S. Hill and M. Cannon (United Kingdom)
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A sentiment analysis of online content containing Antarctic krill fishing search terms
terms 12 was analysed to evaluate public perception of the fishery, as a consideration in management 13 ... Marine Living Resources (CCAMLR) which aims to manage the fishery with 15 minimal ecosystem impacts. A ... sentiment of Antarctic krill fishing related content across all search platforms. This study 23 forms a ... operate in a changing environment as well as a providing a method for using 25 online content sentiment ...
Meeting Document : WG-EMM-17/18 : Auteur(s): J. Barrett, K. Reid and J. Jabour
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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 : Auteur(s): A. Brandão and D.S. Butterworth (South Africa)
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A preliminary assessment of mackerel icefish (Champsocephalus gunnari) in Division 58.5.2, based on recent survey results
vicinity of Heard Island during April-May 2011. This paper provides a preliminary assessment of mackerel ... ’ E using standard CCAMLR methods. A pattern of 5 year classes being present simultaneously in the ... population, which was first detected in 2011, has persisted, however a large cohort of fish, estimated to be ... 2+, dominate the population in both abundance and biomass. A new length weight model is estimated ...
Meeting Document : WG-FSA-12/26 : Auteur(s): D.C. Welsford (Australia)
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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 : Auteur(s): CCAMLR Secretariat
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A representative system of CCAMLR MPAs: taking stock and moving forward
the CCAMLR MPA designation process started over a decade earlier. Additional MPAs will demonstrate ... that the Ross Sea MPA designation was not a one-off for CCAMLR, but rather one important step in ... establishing a representative system of MPAs in the Convention Area. This paper provides an overview of the ... progress made by CCAMLR toward establishing a representative system of MPAs in the Southern Ocean ...
Meeting Document : CCAMLR-XXXVI/BG/25 Rev. 2 : Auteur(s): Submitted by ASOC
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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 : Auteur(s): S. Kawaguchi, M. Cox, N. Kelly, L. Emmerson and D. Welsford
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A review of national observer training and education programs (Scheme of International Scientific Observation)
program and the application of observer requirements could be improved by adopting a standard approach to ... education and training for observers in these fisheries (SC-CAMLR-XXV, paragraph 2.11). A review of current ... Secretariat believes that in order to achieve a consistent approach to education and training for scientific ... observers, Members would need to: further develop and agree upon a set of training and education standards ...
Meeting Document : SC-CAMLR-XXVI/BG/09 Rev. 1 : Auteur(s): Secretariat
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A preliminary population status model for the Patagonian toothfish, Dissostichus eleginoides, on the Kerguelen Plateau (Divisions 58.5.1 and 58.5.2) using CASAL
. Analysis of genetic, demographic and tagging data indicates that toothfish form a metapopulation in this ... region. This paper describes the development of a CASAL model incorporating data from research ... , commercial and illegal fishing activities in the French and Australian EEZs. This represents a substantial ... . Preliminary results indicate that illegal fishing in the late 1990s and early 2000s lead to a rapid decline in ...
Meeting Document : WG-SAM-11/20 : Auteur(s): S.G. Candy (Australia), A. Relot, G. Duhamel (France), D.C. Welsford, A.J. Constable, T.D. Lamb (Australia), P. Pruvost and N. Gasco (France)