Résultats de la recherche

1. Population and breeding of the gentoo penguin Pygoscelis papua at Marion Island, 1994/95 to 2002/03

   Abstract:  The numbers of gentoo penguins Pygoscelis papua breeding at subantarctic Marion Island fell by 40%, from 1994/95 to 2002/03 from 1 352 pairs to 806 pairs. Apart from a slight increase in 1998/99, there was a steady decrease in numbers breeding between 1995/96 and 2000/01, when the

   Meeting Document : WG-EMM-03/16 : Auteur(s): R.J.M. Crawford, J. Cooper, M. du Toit, M.D. Greyling, B. Hanise, C.L. Holness, D.G. Keith, J.L. Nel, S.L. Petersen, K. Spencer, D. Tshingana and A.C. Wolfaardt (South Africa)

2. Ecological games in space and time: the distribution and abundance of Antarctic krill and penguins

   Abstract:  The distribution and abundance of organisms are affected by behaviors, such as habitat selection, foraging, and reproduction. These behaviors are driven by interactions within and between species, environmental conditions, and the biology of the species involved. Although extensive

   Meeting Document : WG-EMM-03/33 : Auteur(s): S.H. Alonzo, P.V. Switzer and M. Mangel (USA)

3. An ecosystem-based approach to management: using individual behaviour to predict the indirect effects of Antarctic krill fisheries on penguin foraging

   Abstract:  1. Changes in species’ abundance and distributions caused by human disturbances can have indirect effects on other species in a community. Although ecosystem approaches to management are becoming increasingly prevalent, they require a fuller understanding of how individual behaviour

   Meeting Document : WG-EMM-03/34 : Auteur(s): S.H. Alonzo, P.V. Switzer and M. Mangel (USA)

4. Mackerel icefish ecological indices

   Abstract:  Mackerel icefish have been harvested in the CCAMLR Region for over thirty years. In the Atlantic sector of the Southern Ocean they feed preferentially on krill and are themselves preyed upon by fur seals and several avian species. These attributes make them suitable for consideration

   Meeting Document : WG-EMM-03/42 : Auteur(s): I. Everson (United Kingdom), K.-H. Kock (Germany) and A.W. North (United Kingdom)

5. Adélie penguin foraging behaviour and breeding success in seasons of contrasting krill availability (Mawson Coast, Antarctica)

   Abstract:  Parameters measured under the CCAMLR Ecosystem Monitoring Program (CEMP) for Adélie penguins at the Béchervaise Island CEMP site were compared between seasons of contrasting krill availability. Krill biomass estimates were derived from shipboard surveys carried out within the penguins’

   Meeting Document : WG-EMM-03/44 : Auteur(s): J. Clarke, M. Tierney, S. Candy, S. Nicol, L. Irvine and K. Kerry (Australia)

6. Demographic studies for CEMP

   Abstract:  This paper responds to a request (WG-EMM-02 paragraphs 3.46 to 3.47) for standard methods for determining demographic parameters. It is noted the methods (CEMP A4) as published in CEMP Standard Methods 2003 appear adequate. Revision may be required in the future following consideration

   Meeting Document : WG-EMM-03/45 : Auteur(s): K.R. Kerry, J.R. Clarke and L.M. Emmerson (Australia)

7. Short note: time series of Drake Passage Oscillation Index (DPOI) from 1952 to 2003, Antarctica

   Abstract:  An assessment of the environmental processes influencing variability in the recruitment and density of Antarctic krill (Euphausia superba DANA) is important as variability in krill stocks affects the Antarctic marine ecosystem as a whole. Naganobu et al. (1999) had assessed variability

   Meeting Document : WG-EMM-03/46 : Auteur(s): M. Naganobu and K. Kutsuwada (Japan)

8. Spatial variability and power to detect regional-scale trends

   Abstract:  An important issue in regional-scale trend detection is the degree of concordance in trend between sites in relation to an average regional trend. If there is much or more variability between sites than within sites over time, inter-site variance can overwhelm the effects of other

   Meeting Document : WG-EMM-03/47 : Auteur(s): C. Southwell and L. Emmerson (Australia)

9. Suggestions on revision of CCAMLR Scientific Observers Manual

   Abstract:  The CCAMLR Observer Manual details scientific observation guidelines and contains a set of logbook forms with instructions for recording observations. This document proposes some revised versions of the log forms (fish by-catch, krill biological data, conversion factors) and guides in

   Meeting Document : WG-EMM-03/55 : Auteur(s): S. Kawaguchi, R. Williams (Australia) and E. Appleyard (CCAMLR Secretariat)

10. Report of the international workshop on understanding living krill for improved management and stock assessment

    Abstract:  The international workshop on understanding living krill for improved management and stock assessment (referred to Krill workshop here after) was held at Port of Nagoya Public Aquarium, Nagoya from 1-4 October 2002. 35 Participants from 5 nations (Japan, USA, Australia, Korea, Germany,

    Meeting Document : WG-EMM-03/56 : Auteur(s): S. Kawaguchi (Australia) and M. Naganobu (Japan)

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