Resultados de la búsqueda
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CLIMATE CHANGE AND THE ANTARCTIC MARINE ENVIRONMENT: MANAGEMENT IMPLICATIONS
Abstract: This paper discusses some of the implications of climate change and how these concerns ... necessitate that CEP and CCAMLR address a number of key issues if both organisations are to fulfil their ... of work, it will be essential for them to try to determine the relative risks (uncertainty), impacts ... and timescales, of the various processes consequent on climate change. With current levels of ...
Meeting Document : WG-EMM-09/24 : Autor(es): P.N. Trathan and D. Agnew (United Kingdom)
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Model diagnostics for the Antarctic krill assessment for Subarea 48.1
Abstract: Model diagnostics have been applied to CASAL-based assessments of toothfish ... integrated model. The purpose of this note is to use some of these methods to explore aspects of the ... ; configuration of the krill model was presented to EMM in 2015 (Kinzey et al. 2015a) along with seven alternative ... influence of different data sources on the model estimates. The work described here augments the previous ...
Meeting Document : WG-FSA-15/60 : Autor(es): D. Kinzey, G.M. Watters and C.S. Reiss (USA)
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A study on calibration for commercial echosounder using the bottom backscattering strength from a fishing vessel near the South Shetland Islands in Antarctic
fishing vessel to use it in estimating biomass of Antarctic krill (Euphausia superba). The method of ... calibration was to analyze the difference between the bottom backscattering strength of the commercial ... , was examined to verify the calibration result. The analysis result confirmed the possibility of ... calibration by bottom backscattering strength, since the proportion of krill swarm signals within 2 dB < S ...
Meeting Document : WG-EMM-16/61 : Autor(es): Delegation of the Republic of Korea
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Informe del Grupo de trabajo por correspondencia sobre financiación sostenible para 2016/17
Abstract: A summary of the work undertaken in relation to tasks identified at CCAMLR-XXXV for the ... attention of the Intersessional Correspondence Group – Sustainable Financing (ICG-SF) during 2016/17 is ... following tasks requested by CCAMLR-XXXV: issues associated with funding conveners to meetings of the ... Scientific Committee and working groups considerations relating to the establishment of a Working Capital ...
Meeting Document : CCAMLR-XXXVI/11 : Autor(es): CCAMLR Secretariat
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Tag linking – revised algorithm (2019)
Abstract: The CCAMLR Tagging Programme is a key part of CCAMLR’s management of toothfish ... fisheries and linking the details of recaptured fish to that of tagged fish is a key element of the ... probability to multiple releases. This new approach uses more of the available data to increase the level of ... transparency and provides an index of the level of confidence in all linked mark-recapture data. The ...
Meeting Document : WG-SAM-2019/07 : Autor(es): CCAMLR Secretariat
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Diseases outbreak threatens Southern Ocean albatrosses
Southern Ocean and in Antarctica no major outbreaks of infectious diseases have been reported, perhaps ... because of isolation and cold climate, although recent evidence suggest their presence. The major threat ... controversial long-lining that is assumed to be the cause for the major decline of albatrosses and petrels ... , Erysipelas bacteria) are the major cause of the decline on Amsterdam Island of the large yellow-nosed ...
Meeting Document : WG-EMM-03/32 : Autor(es): H. Weimerskirch (France)
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Historical data synthesis in the Southern Ocean: Priority data sets
Abstract: As part of its long-term goal, ICED encourages the rescue and integration of existing ... data sets to enable investigation of long-term, large-scale ecosystem dynamics across the Southern ... , against which we can assess current and future dynamics of ecosystems under scenarios of climate and ... give an example of an historical data rescue project that is being conducted by ICED scientists at the ...
Meeting Document : WG-EMM-13/19 : Autor(es): 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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Variability in krill length distribution in 48.1 derived from data collected by scientific observers
Abstract: Information on the length distribution of krill in the catch, and the spatial and ... temporal patterns of krill length in the population is essential to assess krill population status and ... dynamics, and the impacts of a fishery on the stocks. Here, we use generalised additive models (GAM) and ... generalised additive mixed models (GAMM) to evaluate the spatial and temporal patterns of length in Antarctic ...
Meeting Document : WG-EMM-15/16 : Autor(es): P. Ziegler, S. Kawaguchi D. Welsford and A. Constable (Australia)
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Beach debris survey – Signy Island, South Orkney Islands 2002
categories. A total of 39 items weighing 25.47kg were collected. The number of items found was the largest ... since 1999/00 and the total mass of the waste recovered was the highest recorded since 1994/95 (an ... increase of 59% by number and 97% by mass since 2000/01). There was an increase in the number of plastic ... % of all items recorded, followed by wood (23%). Classifying the waste by source revealed that almost ...
Meeting Document : SC-CAMLR-XXI/BG/05 : Autor(es): Delegation of the United Kingdom
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CEMP INDICES: 2009 UPDATE
indicator species collected by standard methods in the three Integrated Study Regions of the Convention Area ... . Each year the Secretariat updates the standardised index values and provides a summary of trends and ... and 12 CEMP parameters in 2008/09. This continues a decreasing trend in the amounts of data being ... submitted to the CCAMLR database. No data was received from CEMP sites in Area 88. Since 1989/90, a total of ...
Meeting Document : WG-EMM-09/05 : Autor(es): Secretariat