Résultats de la recherche

1. Distribution and abundance of Antarctic krill (Euphausia superba) off East Antarctic (30–80°E) in January–March 2006

   Abstract:  Multifrequency echosounder data were collected during the 2006 BROKE-West summer survey of Division 58.4.2 for the purposes of estimating the unexploited biomass (B0) of Antarctic krill (Euphausia superba) and its associated coefficient of variance (CV). This paper updates the version

   Meeting Document : WG-EMM-07/33 : Auteur(s): T. Jarvis, N. Kelly, E. van Wijk, S. Kawaguchi and S. Nicol (Australia)

2. Community structure of epipelagic macrozooplankton in the Ross Sea

   Abstract:  During the 9th research cruise of the R/V Kaiyo-maru, macrozooplankton samples were collected from three layers between the surface and 200 m with RMT 8m2 along the three longitudinal lines in the Ross Sea and neighboring waters. Biomass and abundance (number of individuals) were 0 ~ 32

   Meeting Document : WG-EMM-07/34 Rev. 1 : Auteur(s): Y. Watanabe, S. Sawamoto, T. Ishimaru and M. Naganobu (Japan)

3. Seabird research at Cape Shirreff, Livingston Island, Antarctica, 2006/07

   Abstract:  Our tenth season of seabird research at Cape Shirreff allowed us to assess trends in penguin population size, as well as inter-annual variation in reproductive success, diet and foraging behavior. The gentoo breeding population has decreased marginally from the previous season and is the

   Meeting Document : WG-EMM-07/P1 : Auteur(s): R. Orben, S. Chisholm, A. Miller and W.Z. Trivelpiece (USA)

4. Cycles of Euphausia superba recruitment evident in the diet of Pygoscelid penguins and net trawls in the South Shetland Islands, Antarctica

   Abstract:  Size and sex of Antarctic krill taken from chinstrap and gentoo penguin diet were compared to those from scientific net surveys in the South Shetland Islands from 1998-2006 in order to evaluate penguin diet as a sampling mechanism and to look at trends in krill populations. Both penguin

   Meeting Document : WG-EMM-07/P2 : Auteur(s): A. Miller and W. Trivelpiece (USA)

5. Insights from the study of the last intact neritic marine ecosystem

   Abstract:  Frank, K.T. et al. (2007: Trends Ecol. Evol. 22, 236–242) provide interesting analysis, after compiling information from 19 subregions, on how the exploited shelf ecosystems of the North Atlantic are structured, either by predation (top down) or resource availability (bottom up),

   Meeting Document : WG-EMM-07/P3 : Auteur(s): D. Ainley

6. The Antarctic toothfish: how common a prey for Weddell seals?

   Abstract:  Reported herein are observations of Weddell seals (Leptonychotes weddellii) feeding on Antarctic toothfish (Dissostichus mawsoni) in McMurdo Sound, Antarctica, during 2001-2003 austral summers. In addition to past reports of isolated toothfish captures, the frequency of these

   Meeting Document : WG-EMM-07/P4 : Auteur(s): P.J. Ponganis and T.K. Stockard (USA)

7. Learning about Antarctic krill from the fishery

   Abstract:  Antarctic krill has been studied for many decades, but we are still long way from understanding their biology to be able to make reliable predictions about the reaction of their populations to environmental change. This is partly due to certain difficulties in relation to logistics,

   Meeting Document : WG-EMM-07/P5 : Auteur(s): S. Kawaguchi and S. Nicol (Australia)

8. Male krill grow fast and die young

   Abstract:  The size-differentiated sex ratio (proportion of males: POM) of Antarctic krill was examined with an extensive dataset derived from scientific surveys in the Indian Ocean sector and the southwest Atlantic sector, and from the krill fishery in the Southern Ocean. The percentage of males

   Meeting Document : WG-EMM-07/P6 : Auteur(s): S. Kawaguchi, L.A. Finley, S. Jarman, S.G. Candy (Australia), R.M. Ross, L.B. Quetin (USA), V. Siegel (Germany), W. Trivelpiece (USA), M. Naganobu (Japan) and S. Nicol (Australia)

9. Setting management goals using information from predators

   Abstract:  This paper is a published book chapter examining how goals and reference points might be set for higher trophic levels – such as marine mammals, birds and fish. It briefly explores the general characteristics of objectives for higher trophic levels within the context of ecosystem-based

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

10. Spatial and temporal operation of the Scotia Sea ecosystem: a review of large-scale links in a krill centred food web

    Abstract:  The Scotia Sea ecosystem is a major component of the circumpolar Southern Ocean system, where productivity and predator demand for prey are high. The eastward-flowing Antarctic Circumpolar Current (ACC) and waters from the Weddell–Scotia Confluence dominate the physics of the Scotia Sea,

    Meeting Document : WG-EMM-07/P8 : Auteur(s): E.J. Murphy, J.L. Watkins, P.N. Trathan, K. Reid, M.P. Meredith, S.E. Thorpe, N.M. Johnston, A. Clarke, G.A. Tarling, M.A. Collins, J. Forcada, R.S. Shreeve, A. Atkinson, R. Korb, M.J. Whitehouse, P. Ward, P.G. Rodhouse, P. Enderlein, A.G. Hirst, A.R. Martin, S.L. Hill, I.J. Staniland, D.W. Pond, D.R. Briggs, N.J. Cunningham and A.H. Fleming (United Kingdom)

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