Résultats de la recherche

1. Broadbandwidth sound scattering and absorption from krill (Meganyctiphanes norvegica), Mysids (Praunus flexuousus and Neomysis integer) and shrimp (Crangon crangon)

   Abstract:  Sound scattering and absorption measurements were made of Northern krill (Meganyctiphanes norvegica) over the acoustical bandwidth of 30 to 210 kHz and compared to similar scattering measurements made of Antarctic krill (Euphausia superba; Demer and Conti, 2003a). The measurements of

   Meeting Document : WG-EMM-04/40 : Auteur(s): S.G. Conti, D.A. Demer (USA) and A.S. Brierley (United Kingdom)

2. Sounds like more krill

   Abstract:  Antarctic krill, Euphausia superba, comprise the foundation of the food-web in the Southern Ocean and are the target of a large fishery. Recently, the total abundance of krill in the Scotia Sea was estimated from an international echosounder and net survey (CCAMLR 2000) to be 44.3

   Meeting Document : WG-EMM-04/41 : Auteur(s): D.A. Demer and S.G. Conti (USA)

3. Report of scientific observations of commercial krill harvest aboard the Japanese stern trawler Chiyo Maru No. 5 2 August 2003–21 September 2003

   Abstract:  Japan has deployed one scientific observer on a Japanese krill trawler, Chiyo Maru No. 5, from 4 August 2003 to 21 September 2003. The observation was essentially undertaken following the CCAMLR Scientific Observers Manual. Summary of the fishing efforts, processing, fish by-catches,

   Meeting Document : WG-EMM-04/42 : Auteur(s): T. Hayashi, M. Naganobu and K. Taki (Japan)

4. Short note: report of bacterial infectious Antarctic krill (Euphausia superba) in South Georgia

   Abstract:  We report of affected Antarctic krill (Euphausia superba) observed during the observation onboard the F/V Chiyo Maru No.5, from 08/08/03 to 17/09/03 in South Georgia region. Author(s):  T. Hayashi and M. Naganobu (Japan) Title:  Short note: report of bacterial infectious Antarctic krill

   Meeting Document : WG-EMM-04/43 : Auteur(s): T. Hayashi and M. Naganobu (Japan)

5. Characteristics of seasonal variation in diurnal vertical migration and aggregation of Antarctic krill (Euphausia superba) in the Scotia Sea, using the Japanese fishery data

   Abstract:  We examined seasonal variation in CPUE (catch per volume of trawled water) and diurnal vertical migration of Antarctic krill (Euphausia superba) associated with the brightness categories of the day based upon the angles between the center of the sun and the celestial horizon on the

   Meeting Document : WG-EMM-04/44 : Auteur(s): K. Taki, T. Hayashi and M. Naganobu (Japan)

6. 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)

7. 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)

8. 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)

9. 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)

10. 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)

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