Résultats de la recherche

1. Comparison of two methods to assess fish losses due to depredation by killer whales and sperm whales on demersal longline

   Abstract:  Depredation is a human-wildlife conflict over resource which often includes a ... indirect methods of assessment of depredated biomass over a 11-year period (from 2003 to 2013), both ... the two species co-occurred around vessels. The second method was new in a way that we used the ... only be implemented when a sufficient level of bycatch species occurs,  provides strong support to the ...

   Meeting Document : WG-FSA-14/10 : Auteur(s): N. Gasco, P. Tixier, G. Duhamel and C. Guinet (France)

2. Monitoring and managing the effects of environmental change on toothfish assessments

   Abstract:  This paper presents a ‘first-step’ proposal for CCAMLR to consider the effects of ... environmental conditions that are maintained over a number of years, which includes the effects of global ... can be used to identify changes that have occurred, or changes that may currently be occurring, as a ... CCAMLR’s fishery reports may be revised to include a new section on changes in model parameters and ...

   Meeting Document : WG-SAM-18/22 : Auteur(s): M. Pinkerton, A. Dunn, S. Mormede and S. Parker

3. Marine classification: lessons from the New Zealand experience

   Abstract:  New Zealand has a considerable body of experience creating spatial classifications of ... management mandate. This paper considers a range of methodological options for data-driven marine ... ) Generate a classification based on abundance, not presence-absence; 4) Use the most powerful statistical ... methods available, such as BRT and GDM; 5) Use a hierarchical algorithm; 6) Focus on an environment or ...

   Meeting Document : WS-BSO-07/6 : Auteur(s): B. Sharp, M. Pinkerton and J. Leathwick (New Zealand)

4. Entanglement of Antarctic fur seals (Arctocephalus gazella) by man made debris at Bird Island, South Georgia, during the 2005 winter and 2005/06 breeding season

   reported here. Two entanglements were observed in the winter, a decrease of 60% from the previous year, and ... the lowest number seen since records began in 1990. One of these involved a male pup entangled in ... occurred to an adult female entangled in a plastic packing band causing slight constriction to the ... entanglements were caused by plastic packing bands, this is a 67% increase from the previous year’s observations ...

   Meeting Document : SC-CAMLR-XXV/BG/13 : Auteur(s): Delegation of the United Kingdom

5. Satellite tracking of black-browed and light-mantled sooty albatrosses from Heard Island and potential interactions with fisheries

   Abstract:  The purpose of this document is to inform CCAMLR of the results of a satellite tracking ... fisheries. These fisheries have a history of a low incidental seabird by-catch (no fatalities recorded to ... a further 5% went beyond either EEZ into the high seas north and east of Heard Island. In contrast ...

   Meeting Document : WG-FSA-05/14 : Auteur(s): K. Lawton, R. Kirkwood and G. Robertson (Australia)

6. Age-structured production model for toothfish at South Georgia

   through the introduction of a new annual selectivity function, modelled as a unimodal, algebraically ... decaying function of age, with three easily interpretable parameters. When only a single selectivity curve ... toothfish populations by fitting to the available catch length frequency data and CPUE data. Author(s):  A ...

   Meeting Document : WG-FSA-SAM-05/18 : Auteur(s): A. Payne, G.P. Kirkwood, R. Hillary and D.J. Agnew (United Kingdom)

7. Beach debris survey, Main Bay, Bird Island, South Georgia, 2002/03

   Island, South Georgia, a total of 183 items was collected. This represents a 5.0% decrease on the total ... (3.6 kg) was a decrease of 1 kg since last year. There was a decrease in the proportion of nylon ...

   Meeting Document : SC-CAMLR-XXIII/BG/13 : Auteur(s): Delegation of the United Kingdom

8. Report of the Steering Committee for the WG-EMM Workshop on Plausible Ecosystem Models for Testing Approaches to Krill Management

   advance a program of work to develop and implement operating models to investigate the robustness of ... in the development of models at the workshop, (ii) a review of relevant literature and information on ... a catalogue of available software and other simulation environments for ecosystem modelling, (iv ... work are outlined. Also provided in this report is a draft agenda for the workshop. Title:  Report of ...

   Meeting Document : WG-EMM-04/25

9. Review of CCAMLR activities on monitoring marine debris in the Convention Area

   , reached a peak in the period 1994–1996 at Bird Island and Signy Island has declined thereafter. The level ... ) entanglement at Bird Island reached a peak in 1993 and showed a decline until 2000 since when there has been a ...

   Meeting Document : SC-CAMLR-XXII/BG/25 : Auteur(s): Secretariat

10. Growth of mackerel icefish (Champsocephalus gunnari) and age-size composition of populations in subarea of South Georgia

    represented by fish of two contiguous age groups. It was shown that in the 1980s during a number of years the ... class. These year classes appeared against a background of the intensive icefish fishery, and krill ... important factors now. A comparative analysis of icefish growth in subarea 48.3 based on data collected in ... different periods of fishery revealed a substantial interannual variability. The comparison of the growth ...

    Meeting Document : WG-EMM-03/60 : Auteur(s): K.V. Shust and E.N. Kuznetsova (Russia)

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