Résultats de la recherche

1. Diving pattern and performance in nonbreeding gentoo penguins (Pygoscelis papua) during winter

   were bimodal. Shallow dives (30 m; 55% of total number and 81% of dive time) averaged 74-105 m and 2.7 ... patterns, averaging 10-20 m at dawn and dusk and 70-90 m at midday. These results are consistent with the ... similar to that of chick-rearing birds. The only major differences are that foraging-trip frequency is 20 ... % less and stomach-content mass on return ashore 30% less in winter. We conclude that foraging activity ...

   Meeting Document : WG-CEMP-92/37 : Auteur(s): T.D. Williams (United Kingdom), A. Kato (Japan), J.P. Croxall (United Kingdom), Y. Naito (Japan), D.R. Briggs, S. Rodwell and T.R. Barton (United Kingdom)

2. Status of krill target strength

   cause of bias in single-animal measurements, namely thresholding. Theoretical estimates for the target ... dependence of target strength on both animal size and transmit frequency, notwithstanding admitted ... shortcomings. Some recent single-animal measurements of target strength for live euphausiids and euphausiid ...

   Meeting Document : WG-KRILL-92/11 : Auteur(s): K.G. Foote (Norway), D. Chu and T.K. Stanton (USA)

3. Distribution of krill (Euphausia superba Dana) catches in the South Shetlands and South Orkneys

   the literature are used to show that for some years, at distances of between 20 and 60 km from ... Abstract:  Zones of 20 km width are defined around selected colonies of penguins distributed ... December to March was taken within 40 km of the coast, and 90% within 80 km in all years 1988-1990. In 1987 ...

   Meeting Document : WG-KRILL-92/19 : Auteur(s): D.J. Agnew (Secretariat)

4. Ecosystem studies carried out during the second Ukrainian Marine Antarctic Expedition in Subareas 48.2 and 48.1 in 1998

   water low temperatures and great amount of icebergs (together all these factors characterize the ... navigational season of 1998 as abnormally cold), recruitment of the stock (for the first time for recent years ...

   Meeting Document : WG-EMM-00/5 : Auteur(s): V. Bibik and P. Gozhik (Ukraine)

5. Seabird mortality in the longline fishery for Patagonian toothfish at the Prince Edward Islands: 1996–1997

   . This paper summarizes the mortality of seabirds associated with this fishery during the year July 1996 ... (EEZ). However, the total fishing effort is estimated, based on landings, to be between 20 and 50 ... Macronectes spp. (4 %). Extrapolating to the total fishery suggests that between 5 000 and 20 000 birds were ... Thalassarche chyrsostoma and Yellow-nosed Albatrosses T. chlororhynchos (together 23 %), and giant petrels ...

   Meeting Document : WG-FSA-97/51 : Auteur(s): Boix-Hinzen, C., Enticott, J.W., Ryan, P.G., Wanless, R., Purves, M., Nel, D.C.

6. Integrated analysis of the by-catch data in the Ross Sea toothfish fishery

   significant varied across years and by SSMU and among longline gear types.  The spatial-temporal heterogeneity ... the CCAMLR Article II the following activities are proposed: investigations of spatial-temporal ...

   Meeting Document : WG-FSA-16/13 Rev. 1 : Auteur(s): S. Kasatkina

7. Interannual variability in Antarctic krill (Euphausia superba) density at South Georgia, Southern Ocean: 1997 – 2013

   the WCB in that year. WCB krill density (µ, mean density for the area) showed several years (1997-8 ... , 2001-2003, 2005-2007) of high values (µ > 30 g m-2) interspersed with years (1999-2000, 2004, 2009 ... estimates for a 17 year time series of acoustic surveys of the Western Core Box at South Georgia.  Krill ... . Hence, only the densest krill swarms detected in any one year drove the mean krill density estimates for ...

   Meeting Document : WG-EMM-14/P04 : Auteur(s): S. Fielding, J. Watkins, P. Trathan et al.

8. Inter-annual variability in krill density at South Georgia: 1997–2012

   , mean density for the area) showed several years of moderate to high values (µ > 30 gm-2 ... ) interspersed with years (1999-2000, 2004, 2009-2010) of very low density (µ < 30 gm-2).   Author(s):  S ... krill was examined using a 15 year time series of acoustic observations undertaken in the Western Core ... one year were driving the mean krill density estimates for the WCB in that year. WCB krill density (µ ...

   Meeting Document : WG-EMM-13/14 : Auteur(s): S. Fielding, J.L Watkins, P. Trathan, P. Enderlein, C. Waluda, C. Goss, G. Stowasser, G. Tarling and E. Murphy (United Kingdom)

9. Oceanic circumpolar habitats of Antarctic krill

   Author(s):  A. Atkinson, V. Siegel, E. A. Pakhomov, P. Rothery, V. Loeb, R.M. Ross, L.B. Quetin, K. Schmidt, P. Fretwell, E.J. Murphy, G.A. Tarling and A.H. Fleming Title:  Oceanic circumpolar habitats of Antarctic krill Approval:  Approved Secretariat Workflow Status:  Content Approved Document

   Meeting Document : WG-EMM-08/P04 - Article : Auteur(s): A. Atkinson, V. Siegel, E. A. Pakhomov, P. Rothery, V. Loeb, R.M. Ross, L.B. Quetin, K. Schmidt, P. Fretwell, E.J. Murphy, G.A. Tarling and A.H. Fleming

10. Otolith chemistry indicates population structuring by the Antarctic Circumpolar Current

    Author(s):  J.R. Ashford, C.M. Jones, E.E. Hofmann, I. Everson, C.A. Moreno, G. Duhamel and R. Williams Title:  Otolith chemistry indicates population structuring by the Antarctic Circumpolar Current Approval:  Approved

    Meeting Document : WG-FSA-08/P05 - Article : Auteur(s): J.R. Ashford, C.M. Jones, E.E. Hofmann, I. Everson, C.A. Moreno, G. Duhamel and R. Williams

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