Résultats de la recherche

1. Statistical problems in krill stock hydroacoustic assessments

   :  Two primary issues are at question for hydroacoustic assessments of krill. The first is the methods ... applied to establish biomass in a survey area and the second is the improvement in accuracy of target ... -strength measurements. In the case of statistical methods, there are no clear guidelines for deciding what ... does not invalidate the use of available methods to conduct surveys and analyze results. In the case of ... assessments of krill. The first is the methods applied to establish biomass in a survey area and the second ... is the improvement in accuracy of target-strength measurements. In the case of statistical methods ... well addressed by present techniques. However, this does not invalidate the use of available methods ... to conduct surveys and analyze results. In the case of target-strength accuracy, even if the ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 301–309 : Auteur(s): Macaulay, M.C.

2. Foraging patterns in the Antarctic shag (Phalacrocorax bransfieldensis) at Harmony Point, Antarctica

   Abstract:  During the 1995/96 and 1996/97 summer seasons the foraging pattern of the Antarctic ... Point, Nelson Island, South Shetland Islands. During pre-laying and incubation individuals of both sexes ... nests. During the rearing period the parents incremented the number of daily foraging trips usually ... alternating the time at sea. Compared to the incubating period, when rearing chicks individuals of both sexes ...

   Meeting Document : WG-EMM-04/22 : Auteur(s): R. Casaux and A. Baroni (Argentina)

3. Predation on cephalopods by Pygoscelis papua and Arctocephalus gazella at South Orkney Islands

   Abstract:  The cephalopod diet of the Gentoo penguin, Pygoscelis papua and the Antarctic fur seal ... , Arctocephalus gazella was comparatively analyzed at Laurie Island, South Orkney Islands. A total of 125 stomach ... samples were collected by the water off-loading method from Gentoo penguins during the autumns of 1993 ... % of the samples. Lower beaks identified belonged exclusively to the squid Psychroteuthis glacialis ...

   Meeting Document : WG-EMM-04/68 : Auteur(s): M.M. Libertelli, G.A. Daneri (Argentina), U. Piatkowski (Germany), N.R. Coria and A.R. Carlini (Argentina)

4. SOUTHERN OCEAN SENTINEL: AN INTERNATIONAL PROGRAM TO ASSESS CLIMATE CHANGE IMPACTS ON MARINE ECOSYSTEMS

   Abstract:  Assessment and predictive models need to be developed to provide two assessments of ...  climate change impacts on Southern Ocean ecosystems to inform governments of the consequences of climate ...  ecosystems, using select indicators of Southern Ocean ecosystems as early warning signals, to inform managers ...  of human activities and ecosystem services that could be impacted by climate change?  The manner in ...

   Meeting Document : SC-CAMLR-XXVIII/BG/17 : Auteur(s): Delegation of Australia

5. Groupe de travail sur les statistiques, les évaluations et la modélisation (WG-SAM)

   introduced and incorporated into assessments undertaken during the time of a single meeting. As a result, the ... to provide time for a thorough evaluation of new assessment methods prior to their use at WG-FSA. In ... year since 2003, usually in association with the timing and location of the meeting of the Working ... need for a specialist working group that could review technical assessment and modelling issues of ...

   Page : Site Section: Science

6. A false positive in the CCAMLR tag overlap statistic arising from low catch volume and consequent limited sample size

   2013/14 the vessel Argos Georgia achieved a tag overlap statistic of 52% rather than the required ... minimum of 60% as specified in CM 41-01. A review of the data indicates that the number of fish tagged was ... above the rate per tonne required by CM 41-10, but due to sampling noise the distribution of the length ... of fish tagged did not match closely with that of the catch resulting in a the overlap statistic, as ...

   Meeting Document : WG-FSA-14/31 : Auteur(s): C. Darby (United Kingdom)

7. Population trends and reproductive success at a frequently visited penguin colony on the western Antarctic Peninsula

   Abstract:  Petermann Island (65°10'S, 64°10'W), one of the Antarctic Peninsula’s most ... frequently visited locations, is at the epicenter of a rapid shift in which an Adélie penguin dominated fauna ... is becoming gentoo penguin dominated. Over the course of five seasons, the breeding productivity of ... Adélie and gentoo penguins breeding at Petermann Island were monitored to identify drivers of this rapid ...

   Meeting Document : WG-EMM-16/P07 : Auteur(s): H.J. Lynch, W.F. Fagan and R. Naveen

8. Integrating Climate and Ecosystem Dynamics in the Southern Ocean (ICED) program: developing ICED and CCAMLR joint activities

   is undertaking integrated circumpolar analyses to improve our understanding of Southern Ocean change ... work to more comprehensively assess (and where possible quantify) key impacts of change on Southern ... Ocean ecosystems. This will be achieved through the analysis and integration of available data together ... with development of models, scenarios and projections. These activities and their outputs will provide ...

   Meeting Document : WG-EMM-17/36 : Auteur(s): E. Murphy on behalf of ICED SSC

9. CCAMLR-IWC-WS-08

   marine ecosystem models Gales, N., Constable, A. CCAMLR-IWC-WS-08/03 Models of Antarctic marine ... ecosystems in support of CCAMLR and IWC: background Constable, A. CCAMLR-IWC-WS-08/04 A review of abundance ... , trends and foraging parameters of baleen whales in the Southern Hemisphere Branch, T.A., Zerbini, A.N ... Report of review group of data sources on odontocetes in the Southern Ocean in preparation for IWC/CCAMLR ...

   Meeting

10. Setting management goals using information from predators

    general characteristics of objectives for higher trophic levels within the context of ecosystem-based ... management, noting that the emphasis for managing the effects of human activities on higher trophic levels is ... of ecosystem structure and function. Following this, the precautionary approach developed in the ... Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR) for taking account of higher ...

    Meeting Document : WG-EMM-07/P7 : Auteur(s): A. Constable (Australia)

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