Résultats de la recherche
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Catch and effort data for the longline fishery in Subarea 48.3 – comparison of data reported to CCAMLR and data acquired by the UK between 1994 and 1996
Abstract: Haul by haul data acquired by the UK from longline fishing for Dissostichus eleginoides ... around South Georgia were compared with data reported to CCAMLR and held in CCAMLR's longline ... database (database C2). Some instances of incomplete reporting were identified, where blocks of data appear ... as single records. A number of hauls yielding zero catches present in the data acquired by the UK ...
Meeting Document : WG-FSA-97/37 : Auteur(s): Parkes, G.B., Pearce, J., Agnew, D.J.
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Trade data analysis – Reconciliation of CDS data with fine-scale catch and effort data
Abstract: The reconciliation of CDS data with monthly fine-scale catch and effort data has ... implemented in the reconciliation of trade data and other relevant CCAMLR datasets. Author(s): CCAMLR ... Secretariat Title: Trade data analysis – Reconciliation of CDS data with fine-scale catch and effort data ...
Meeting Document : CCAMLR-XXXVII/BG/14 Rev. 1 : Auteur(s): CCAMLR Secretariat
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Catch and effort data for the longline fishery in Subarea 48.3 - comparison of data reported to CCAMLR and data acquired by the UK
Author(s): Parkes, G. Title: Catch and effort data for the longline fishery in Subarea 48.3 ... - comparison of data reported to CCAMLR and data acquired by the UK Approval: Approved ...
Meeting Document : WG-FSA-95/25 Rev. 2 : Auteur(s): Parkes, G.
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Estimation of effective sample size for catch-at-age and catch-at-length data using simulated data from the Dirichlet-multinomial distribution
Paper Title: Estimation of effective sample size for catch-at-age and catch-at-length data using ... simulated data from the Dirichlet-multinomial distribution Abstract / Description: The incorporation of ... -multinomial heterogeneity. Accurate estimation of ESS for catch-frequency data for each fishery and fishing ... Estimation of EffEctivE samplE sizE for catch-at-agE and catch-at-lEngth data using simulatEd data from ... heterogeneity. Accurate estimation of ESS for catch-frequency data for each fishery and fishing year is ... systematic and stochastic variation in the data, including both population-level vari- ation in biological ... attributes and variation result- ing from the sampling processes used to obtain the data. Catch-at-age or ...
Science Journal Paper : CCAMLR Science, Volume 15 (CCAMLR Science, Volume 15) : 115–138 : Auteur(s): Candy, S.G
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DATA QUALITY ASSESSMENT IN CCAMLR: REQUIREMENTS FOR MINIMUM INTEGRITY TESTING TO ENSURE THAT DATA ARE FIT FOR PURPOSE
Abstract: The level of data quality assessment and ‘certification’ as ‘fit for purpose’ depends ... upon the different requirements for the data, together with a recognition that, however thorough a ... validation exercise the data are exposed to, there will always be some data that require some additional ... confirmation of their validity. In the context of CCAMLR, data may undergo one set of quality testing in order ...
Meeting Document : WG-SAM-09/05 : Auteur(s): Secretariat
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IDENTIFICATION OF DATA QUALITY METRICS FOR TAGGING DATA SELECTION
Abstract: The suite of data quality metrics introduced by Middleton & Dunn (2008) is examined ... tagging data. Trips considered to have “known” good tagging data are identified, based on above-median ... bootstrap analysis indicates that the range of data quality metrics associated with known good tagging data ... is sensitive to the set of trips considered to have good data. However, a restricted set of data ...
Meeting Document : WG-SAM-09/19 : Auteur(s): D.A.J. Middleton and A. Dunn (New Zealand)
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Krill CPUE standardisation and comparison with acoustic data based on data collected from Chinese fishing vessels in Subarea 48.1
Abstract: The usability of CPUE data as Antarctic krill abundance index was a widely discussed ... issue. Many studies suggested the CPUE data should be standardized before using as abundance/biomass ... index. We tried to develop general additive models to standardize the CPUE data collected from Chinese ... fishing vessels during 2009/10-2013/14 seasons. We also compared the CPUE data and acoustic data collected ...
Meeting Document : WG-EMM-17/41 : Auteur(s): Y. Ying, X. Wang, J. Zhu and X. Zhao
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The reliability of VHF telemetry data for measuring attendance patterns of marine predators: a comparison with Time Depth Recorder data
Abstract: VHF radiotelemetry data has been used for over thirty years to monitor the behavior ... patterns of otariid seals. These data have been used in a wide variety of ways, from characterizing the ... attendance patterns. Yet the accuracy of VHF data has never been appropriately evaluated. Our study compares ... VHF data collected on 16 lactating Antarctic fur seals to assess onshore attendance, with concurrently ...
Meeting Document : WG-EMM-15/P05 : Auteur(s): A.D. Lowther, H. Ahonen, G. Hofmeyr, W.C. Oosthuizen, P.J. Nico De Bruyn, C. Lydersen and K. Kovacs
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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 ... in focus on the use of VMS data by CCAMLR and requires a contingent change in emphasis on data ... 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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Historical data synthesis in the Southern Ocean: Priority data sets
data sets to enable investigation of long-term, large-scale ecosystem dynamics across the Southern ... Ocean. Historical data sets have a particular value in providing ‘baseline’ physical and biological data ... give an example of an historical data rescue project that is being conducted by ICED scientists at the ... integration to aid monitoring and management of Southern Ocean ecosystems. We invite data holders to supply ...
Meeting Document : WG-EMM-13/19 : Auteur(s): N.M. Johnston, E.J. Murphy, J.R.D. Silk, C.M. Waluda, S.L. Hill and R.D. Cavanagh (United Kingdom) on behalf of the ICED Scientific Steering Committee