Résultats de la recherche

1. Calculation of indices of sea-ice concentration using digital images from the National Snow and Ice Data Centre

   Abstract:  A method is described for calculating indices of sea ice distribution from digital data ... distributed by the National Snow and Ice Data Centre, Colorado, USA. Data consist of an image of the Antarctic ... , made up of 312x332 pixels, each having a dimension of 25x25km, for every day in the year. Primary data ... from these primary data. The techniques used are validated against alternative known data. Author(s ...

   Meeting Document : WG-EMM-95/11 : Auteur(s): Agnew, D.J.

2. Preliminary assessment models of Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea including data from the 2005/06 season

   ), by including tag-recapture data for 2005–06 from New Zealand vessels. The updated assessment resulted ... model. The inclusion of the 2005 release and the 2006 recapture data had the effect of only slightly ... modifying the estimates from the models, suggesting that the new data had a similar pattern to that of ... previous years. Model sensitivities using tag-recapture data from all vessels, revised biological ...

   Meeting Document : WG-FSA-SAM-06/11 : Auteur(s): Dunn, A. & Hanchet, S.M.

3. Assessing the accuracy of penguin breeding abundance estimates at regional scales in Antarctica from existing count data: a review using Adélie penguins as a case study

   Abstract:  There is a large body of existing count data in the literature for penguins at their ... breeding sites in Antarctica and the sub-Antarctic islands. These data have been summarised into several ... attempt to determine how the accuracy of regional scale abundance estimates derived from these data might ... existing data is developed and the assumptions underlying that estimator outlined. Existing data for Adelie ...

   Meeting Document : WG-EMM-04/55 : Auteur(s): C. Southwell (Australia)

4. Information from repeat acoustic transects to inform feedback management strategies: data for SG-ASAM 2016

   vessels is one approach to collecting data to inform within season feedback management schemes. However, a ... lack of sufficient data exists from which to examine its efficacy. In addition to the time/monetary ... commitment by fishing nations to collect such data, a time series of data, like that collected by the U.S ... approaches. In this paper I present some basic information from data collected by the U.S. AMLR Program along ...

   Meeting Document : SG-ASAM-16/04 : Auteur(s): C.S. Reiss

5. EXTRAPOLATING CONTINUOUS PLANKTON RECORDER DATA THROUGH THE SOUTHERN OCEAN USING BOOSTED REGRESSION TREES

   spatially comprehensive species distribution layers from discontinuous biological data, by fitting complex ... and scale-dependent relationship between species abundance and available environmental data. The ... , called BRT (Boosted Regression Trees), to data on the distribution of Oithona similis, a small cyclopoid ... data withheld from the fitting. We found that the data withholding of data from the model fitting must ...

   Meeting Document : WG-SAM-08/12 : Auteur(s): M.H. Pinkerton, A.N.H. Smith (New Zealand), B. Raymond, G. Hosie (Australia) and B. Sharp (New Zealand)

6. Research plan for the exploratory longline fishery for Dissostichus spp. in Divisions 58.4.1, 58.4.2 and Subarea 48.6 in 2014/2015 (including CTD data in 88.1, 88.2)

   known well as namely the area is data poor areas. In the Division 58.4.1 there are two stocks; one ... which were not enough data to estimate stock biomass for considering the precautionary catch limit ... of the fish have been evaluated, but those are not enough to assess the stocks and consider proper ... management measures. Based on CCAMLR’s fishery report, the eastern area is still data-poor area showing low ...

   Meeting Document : WG-SAM-14/21 : Auteur(s): Delegation of the Republic of Korea

7. Mapping Application for Penguin Populations and Projected Dynamics (MAPPPD): Data and tools for dynamic management and decision support

   includes all available (published and unpublished) data on the four Sphenisciforme penguins (Emperor ... ) for the region south of 60° S. A Bayesian population model integrates the available data to develop ... interface located at www.penguinmap.com provides easy access to the data, with a web based map that allows ... , population data from the model (including future forecasts) are displayed and made available for download ...

   Meeting Document : WG-EMM-16/P08 : Auteur(s): G.R.W. Humphries, C. Che-Castaldo, R. Naveen, M. Schwaller, P. McDowall, M. Schrimpf and H.J. Lynch

8. Tracer trajectories from the western shelf of South Georgia: ship displacement data

   Abstract:  Corrected ships heading data were used to calculate drift data for the shelf area to ... the west of South Georgia. The data were collected over a six-week period during 1986. A distance ... weighted interpolation was used to obtain tracer trajectories in this irregular data grid. The vector field ... is complex with no simple flow field. These data include a lot of complex process interactions ...

   Meeting Document : WS-Flux-94/10 : Auteur(s): E.J. Murphy, I. Everson and C. Goss (United Kingdom)

9. Assessment models for Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea including data from the 2006/07 season

   survival of tagged fish, or to poorer detection rates. However, if data from all vessels was restricted to ... ), using revised catch, catch-at-age, and tag-recapture data for the 2007 season. The updated reference ... . Models using tag-recapture data from all vessels are also presented. Inclusion of all vessels tagging ... data resulted in a more optimistic assessment. The more optimistic estimate was probably due to the ...

   Meeting Document : WG-FSA-07/37 : Auteur(s): A. Dunn and S.M. Hanchet (New Zealand)

10. ANALYSIS OF VME DATA COLLECTED BY UK VESSELS FISHING IN THE ROSS SEA DURING THE 2008/09 CCAMLR SEASON

    Abstract:  Analysis of VME data collected in 2008/09 by UK vessels and national and international ... observers onboard was carried out to explore evidence of VMEs in the Ross Sea. 2008/09 data corroborated ... areas in 88.1I, E and F identified in our previous analysis of data collected by observers on UK vessels ... established between VME Indicator Units and CPUE data collected in 2008/09, in order to understand better the ...

    Meeting Document : WS-VME-09/05 : Auteur(s): Peatman, T., Mitchell, R.E., Pearce, J., Agnew, D.J.

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