Résultats de la recherche

1. INTERANNUAL SPATIAL VARIABILITY OF KRILL (EUPHAUSIA SUPERBA) INFLUENCES SEABIRD FORAGING BEHAVIOR NEAR ELEPHANT ISLAND, ANTARCTICA

   krill and birds. At sea surveys were conducted near Elephant Island, Antarctica for three years (2004 ... Abstract:  We investigate the influence of krill (principally Euphausia superba) patchiness on the ...

   Meeting Document : WG-EMM-08/P12 : Auteur(s): J.A. Santora, C.S. Reiss, A.M. Cossio and R.R. Veit

2. OCCURRENCE OF DWARF MINKE WHALES (BALAENOPTERA ACUTOROSTRATA SUBSP) AROUND THE ANTARCTIC PENINSULA

   made only for the whales sighted in the proximity of the vessels when the specific diagnostic ... were identified by the reported external diagnostic characters for this species. Seven animals occurred ... around the South Shetland Island and four in the Gerlache Strait. In addition, another two animals were ... records for this species. These results confirm the occurrence of dwarf minke whales around the Antarctic ...

   Meeting Document : WG-EMM-11/P2 : Auteur(s): J. Acevedo, C. Olavarría, J. Plana, A. Aguayo-Lobo, A. Larrea and L.A. Pastene

3. Coastal weather drives foraging behaviour of chinstrap penguins, Pygoscelis antarctica

   the ecosystem in an adaptive framework for sustainably managing krill catch levels, performance ... context, our study capitalises on the occurrence of an unexpected El Niño event to characterise how ... indices of krill predators have been proposed as a proxy for krill abundance.  However, there are several ... that penguin foraging behaviour is modified by scale-dependent processes, which if not accounted for ...

   Meeting Document : WG-EMM-18/P14 : Auteur(s): A.D. Lowther, P. Trathan, A. Tarroux, C. Lydersen and K.M. Kovacs

4. Seabird mortality in the Japanese tuna longline fishery around Australia, 1988–1995

   per year. These estimates are absolute minima because not all birds killed remain on hooks to be ... Abstract:  Large numbers of seabirds are killed each year within the Australian Fishing Zone (AFZ ... seabird bycatch data inadequate for reliable assessment of trends in total numbers of birds killed over ... ) by Japanese longline vessels targeting tuna. In recent years the estimated rate of seabird bycatch in ...

   Meeting Document : WG-FSA-98/31 : Auteur(s): N. Brothers, R. Gales and T. Reid (Australia)

5. Spatial and temporal distribution patterns of acoustic backscatter in the New Zealand sector of the Southern Ocean

   :  Approved Secretariat Workflow Status:  Content Approved Delegation responsibility for releasing documents ... transects collected between 2008 and 2014. Mean acoustic backscatter (s a) at 38 kHz varied between years ... also reflect differences in species composition and size distribution; consequently, indices based on ... MTLO and have impacts on top predators relying upon the mid-trophic level as their main food source ...

   Meeting Document : WG-EMM-18/P06 : Auteur(s): P.C. Escobar-Flores, R.L. O’Driscoll and J.C. Montgomery

6. Summary of Ross Sea skate tagging programme results

   not be determined, so no useful data were gathered for estimating skate growth rates. Amblyraja ... liberty for skates at liberty more than nine months. It appears that this species makes only small-scale ... years, and 47 (0.5%) have been recaptured. The recapture of tagged Amblyraja georgiana after up to four ... years at liberty shows that some skates survive and recover from being hauled out of depths of around ...

   Meeting Document : WG-FSA-06/32 : Auteur(s): S.L. Ballara, A. Dunn and M.P. Francis (New Zealand)

7. By-catch of juvenile fishes – the Antarctic krill fishery

   together with the massive antarctic krill exploitation during the 80's. There has been recognized ...

   Meeting Document : WG-FSA-96/18 : Auteur(s): Moreno, C.A.

8. ADÉLIE PENGUIN SURVIVAL: AGE STRUCTURE, TEMPORAL VARIABILITY AND ENVIRONMENTAL INFLUENCES

   resight data over a sixteen year period. This analysis required an extension to the basic Cormack-Jolly ... annual survival of an Adélie penguin population using mark-recapture models based on penguin tag and ... challenging to study, especially for winter migratory species such as the Adélie penguin (Pygoscelis adeliae ... survival for the younger penguins whereas either too little or too much ice (between 15 and 80% cover) in ...

   Meeting Document : WG-EMM-11/P4 : Auteur(s): L. Emmerson and C. Southwell

9. The Ross Sea Region Marine Protected Area: Current proposal and looking forward

   Abstract:  MPAs are an important tool for biodiversity conservation with benefits for fisheries ... allowing for an economically viable toothfish fishery in the Ross Sea. Since 2012, Ross Sea region MPA ... ability of the MPA to meet its objectives. We also comment on the opportunities for research fishing ... MPA proposed in 2012 was designed to meet an array of ecological and scientific objectives while also ...

   Meeting Document : CCAMLR-XXXIV/BG/27 : Auteur(s): Submitted by ASOC

10. A REVIEW OF BIAS AND UNCERTAINTY IN ANTARCTIC PACK-ICE SEAL ABUNDANCE ESTIMATES

    Abstract:  While the joint CCAMLR-IWC workshop will consider a number of parameters for species ... review addresses population surveys and abundance estimates for the four species of phocid seal commonly ... provide a sense of evolution and development of methodologies over a 50 year period of application. The ... of pack-ice seals focuses primarily on abundance and to a lesser extent trends in abundance. The ...

    Meeting Document : CCAMLR-IWC-WS-08/06 : Auteur(s): Steinhage, D., Bengtson, J., Blix, A.S., Bester, M., Boveng, P., Laake, J., Cameron, M., Nordøy, E., Forcada, J., Stewart, B., Southwell, C., Trathan, P., Rogers, T., Plotz, J., Bornemann, H.

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