Résultats de la recherche

1. Comparison of 1981 FIBEX survey and 2000 CCAMLR survey on oceanographic variability in the Scotia Sea, Antarctica

   Abstract:  We compared physical parameters (temperature, salinity, density and geostrophic current) in order to investigate differences of oceanographic structures in the same area and summer season between the 1981 FIBEX survey and 2000 CCAMLR survey in the Scotia Sea, Antarctica. As a result, the

   Meeting Document : WG-EMM-04/45 : Auteur(s): M. Naganobu and Y. Yoda (Japan)

2. Spectra analysis 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-04/46 : Auteur(s): M. Naganobu and K. Kutsuwada (Japan)

3. A survey plan of Japanese RV Kaiyo Maru in 2004/05 for the Ross Sea and adjacent waters, Antarctica

   Abstract:  The Japanese R/V Kaiyo Maru will survey to collect data simultaneously on ecological interaction f environment – Antarctic krill – whales in the Ross Sea and adjacent waters during December 2004 and February 2005. Transect lines along 180, 175E and 165E will be set to cover hot spots

   Meeting Document : WG-EMM-04/47 : Auteur(s): M. Naganobu, K. Taki and T. Hayashi (Japan)

4. Reconciling fisheries with conservation: three examples from the Southern Ocean

   Abstract:  Preservation of ecosystem structure is the guiding principle by which the Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR) endeavors to manage the harvests of living resources of the Southern Ocean (with the notable exception of marine mammals). The

   Meeting Document : WG-EMM-04/48 : Auteur(s): R.P. Hewitt (USA), I. Everson (United Kingdom) and C.D. Jones (USA)

5. Krill caught by predators and nets revisited: interpreting prey selection in proper temporal–spatial scales

   Abstract:  Krill demography and recruitment are tracked through time using scientific net sampling and predator diet sampling. Comparisons of these two methods show broadly coherent results but also frequently show differences that have fueled speculation of prey selectivity by predators. Krill,

   Meeting Document : WG-EMM-04/49 : Auteur(s): M.E. Goebel, V. Loeb, D.P. Costa, S.N. Sexton, A.R. Banks, J.D. Lipsky and A.C. Allen (USA)

6. Developing conceptual models of elements of the Antarctic marine ecosystem: Antarctic krill (Euphausia superba)

   Abstract:  A simple generalised conceptual life history model for Antarctic krill is developed based on observations and data from the literature. The model attempts to take into account the observed relationships between Antarctic krill and its biotic and abiotic environment. Krill life history is

   Meeting Document : WG-EMM-04/50 : Auteur(s): S. Nicol and S. Kawaguchi (Australia)

7. A conceptual model of the krill fishery

   Abstract:  The behaviour patterns of Japanese krill fishery vessels in Area 48 were analysed using questionnaires on the reasons why the vessel changed their fishing grounds, which were sent out to of the Japanese fishing vessel since the 1989/90 fishing season. Among many reasons for changing

   Meeting Document : WG-EMM-04/51 : Auteur(s): S. Kawaguchi, S. Nicol (Australia), K. Taki and M. Naganobu (Japan)

8. Analysis of trends in Japanese krill fishery, and its implication

   Abstract:  Haul by haul logbook data from the Japanese krill fishery from 1980/81 to 2003/04 fishing season was analysed. By using statistical modeling (linear mixed model) a series of predicted intra- and inter-annual trends of standardized fishery indices are presented. The results strongly

   Meeting Document : WG-EMM-04/52 : Auteur(s): S. Kawaguchi, S. Candy, S. Nicol (Australia), K. Taki and M. Naganobu (Japan)

9. Developing conceptual models of elements of the Antarctic marine ecosystem: Adélie penguins

   Abstract:  In this paper we present a simple generalised conceptual life history model of Adélie penguins based primarily on data collected from Béchervaise Island, East Antarctica. The model uses life history categories based on an individual penguins reproductive potential in any given year,

   Meeting Document : WG-EMM-04/53 : Auteur(s): L.M. Emmerson, J. Clarke, M. Tierney and L. Irvine (Australia)

10. Modelling availability bias using existing time series count data: Adélie penguins as a case study

    Abstract:  It is widely acknowledged that counts of Adélie and other penguin species at breeding sites in Antarctica during the breeding season are influenced by the date at which they are undertaken. A count of some attribute of the population on any date may therefore need to be adjusted by some

    Meeting Document : WG-EMM-04/54 : Auteur(s): L. Emmerson, B. Raymond and C. Southwell (Australia)

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