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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 : Автор(ы): 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 : Автор(ы): 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 : Автор(ы): 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 : Автор(ы): 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
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An update on using the CCAMLRGIS R package to create polygon data and access data on the CCAMLR online GIS
Abstract: To facilitate access to spatial data for use in analyses and generating graphics (i.e ... . maps) in R the CCAMLRGIS R package has been upgraded to provide direct access to polygon data that can ... be viewed on the online GIS. This package can also be used to create polygon data that can either be ... the online GIS. In this paper we provide information on the data format requirements for generating ...
Meeting Document : WG-SAM-17/47 : Автор(ы): CCAMLR Secretariat
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Using krill length data from fishery-dependent and fishery-independent data sources to measure changes in the Antarctic krill population structure in the Bransfield Strait
Abstract: Krill length data collected from fishery-dependent and fishery-independent data sources ... were analysed for trends in population structure. Krill length data collected by the Scheme of ... both data sources appeared to be tracking similar processes. CEMP data revealed patterns in population ... in population structure and recruitment. Analysis demonstrates the importance of using long-term data ...
Meeting Document : WG-EMM-2019/76 : Автор(ы): CCAMLR Secretariat
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CEMP data summary and updated analysis of CEMP data from Subarea 48.
in accordance with the ‘ecosystem approach’. This report provides: Details on CEMP data that have ... previous season A summary of available CEMP data and metadata and any issues encountered with data ... submitted to the Secretariat. An update on the spatial analysis of CEMP data in subarea 48.1 using Combined ... Standardised Indices (CSIs) for Breeding Seasons parameters and population size data. Author(s): CCAMLR ...
Meeting Document : WG-EMM-17/17 : Автор(ы): CCAMLR Secretariat
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Growth models for D. eleginoides for the Heard Island plateau region (Division 58.5.2) calibrated from otolith-based length at age data and validated using mark-recapture data
Abstract: Length-at-age data for the Patagonian toothfish (Dissostichus eleginoides) caught by ... sample that were older than 20 years the general trend in the data of length with age did not exhibit ... mm and asymptotic length of 2000 mm but the fit to the data was very poor. The Akaike Information ... Criterion indicated that the 2-segment linear model gave the best fit to the length-age data. We compare ...
Meeting Document : WG-FSA-05/64 Rev. 1 : Автор(ы): S.G. Candy, T. Lamb, A.J. Constable and R. Williams (Australia)
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Assessment of the analysis of anomalous CPUE data from data-poor exploratory fisheries
Abstract: The article is concerned with discussion of the Analysis of anomalous CPUE data from ... data-poor exploratory fisheries (WG-FSA-12/07). Key points of the paper were presented and discussed ... conclusion that a discussion on anomalous high CPUE in the specified areas using available data and ... ) Title: Assessment of the analysis of anomalous CPUE data from data-poor exploratory fisheries Approval ...
Meeting Document : WG-SAM-13/16 : Автор(ы): V.A. Tatarnikov, A.F. Petrov and I.I. Gordeev (Russia)
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SEASONAL ESTIMATION OF ABUNDANCE BY BOOTSTRAPPING INEXACT RESEARCH DATA (SEABIRD): A METHOD FOR ASSESSING ABUNDANCE AND UNCERTAINTY FROM HISTORICAL COUNT DATA USING ADELIE PENGUINS AS A CASE STUDY
bootstrap model, utilising as input data published counts of Adelie penguins and estimates of their ... SEABIRD (Seasonal Estimation of Abundance by Bootstrapping Inexact Research Data) has been developed in ... the R language for statistical computing (R Development Core Team 2008). Software is reliant on data ... survey data relating to penguin abundance. Usual sampling methodology considerations reported in work of ...
Meeting Document : WG-EMM-PSW-08/11 : Автор(ы): J.P. McKinlay and C.J. Southwell (Australia)
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