Resultados de la búsqueda
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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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Oceanic condition and zooplankton distribution/ abundance in Bransfield Strait during austral summer 1989/1990
to hydrographic condition, a total of 29 sampling stations was occupied for the CTD casts and ... plankton towings in a systematic grid from December 29, 1989 to January 7, 1990. Comparisons of temperature ... east of Trinity Island, then joins the Bellingshausen Sea water (warm and less saline water) near the ... south of Deception Island, and meanders northeastward in the surface layer of the northern strait ...
Meeting Document : WG-KRILL-91/14 : Autor(es): S.M. Kim and M.S. Suk (Korea)
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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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Operational interactions between cetaceans and the Patagonian toothfish (Dissostichus eleginoides) industrial fishery off Southern Chile
higher frequency than any other species during fishing operations. In 60% of all monitored sets sperm ... whales were present, while orcas (Orcinus orca) were found in only 10% of these. When cetaceans were ... present, evidence of damaged catch included lips, heads and trunks and a total of 121 lips, 16 heads and 3 ... trunks were recovered. Mean rate of predation was 3% (± 2% CI 95%; n=180 sets) and ranged between 0% and ...
Meeting Document : WG-FSA-03/95 : Autor(es): R. Hucke-Gaete, C.A. Moreno and J.A. Arata (Chile)
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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
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INTEGRATING COUNT EFFORT BY SEASONALLY CORRECTING ANIMAL POPULATION ESTIMATES (ICESCAPE): A METHOD FOR ESTIMATING ABUNDANCE AND ITS UNCERTAINTY FROM COUNT DATA USING ADÉLIE PENGUINS AS A CASE STUDY
standardising animal count data to a common reference point of breeding chronological for species showing ... Animal Population Estimates) is suite of routines that implements a general abundance estimator ... , Southwell 2004a). Within this resampling framework all measures of uncertainty associated with originally ... achieved by standardising counts to a common reference point of breeding chronology by applying an ...
Meeting Document : WG-EMM-09/20 : Autor(es): J. McKinlay, C. Southwell and R. Trebilco (Australia)
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SEABIRD: DRAFT USER MANUAL V1.00-2008/06/18
that allows a great deal of flexibility in specifying the population dynamics, parameter estimation ... to set up the input files, descriptions of the population dynamics and estimation methods, and how to ... generate outputs. It also contains a brief overview of the technical specifications of the software, and ... examples of models using SeaBird. SeaBird is designed for flexibility. It allows the user to structure the ...
Meeting Document : WG-SAM-08/P03 : Autor(es): D. Fu and R.I.C.C. Francis (New Zealand)