Résultats de la recherche

1. Large-scale oceanographic fluctuations drive Antarctic petrel survival and reproduction

   predict variation in the demographic parameters of Antarctic seabirds. First, we used a long-term dataset ... that most of the variation in both reproductive success, timing of hatching, and survival of Antarctic ... petrels can be accurately modeled using the two modes of large-scale climate variability in Antarctica. e ... in the global patterns of climatic variability will generally have detrimental e ects on populations ...

   Meeting Document : WG-EMM-16/P14 : Auteur(s): S. Descamps, A. Tarroux, S.-H. Lorentsen, O.P. Love, Ø. Varpe and N.G. Yoccoz

2. Linking acoustic scattering coefficient to krill fishery data: feasibility of estimating krill abundance using fishing survey

   Abstract:  Antarctic krill (Euphausia superba Dana) is a key species in the Southern Ocean ... fisheries. In this paper, using the multi-frequency acoustic data and the fishery data, the relationship ... higher than average catch of night trawls. The average thickness of krill swarm in the daytime was ... that at night, with the maximum NASC between 160 and 180 m in depth. Both CPUA and CPUE at the ...

   Meeting Document : WG-EMM-17/44 : Auteur(s): T. Wang, G.P. Zhu, J.F. Tong and L.X. Xu

3. Otolith elemental signatures reveal habitat shift of Electrona carlsbergi

   waters of sub-Antarctic zone and spend the first year of life in this region. Those individuals move ... the biological data in 1990s, however, the habitat shift of this species was still unclear. The ... . carlsbergi hatched in two different areas, E. carlsbergi with Type I otolith could hatched in the oceanic ... Type II otolith could hatched in the coastal waters and are transported (or moved positively) across ...

   Meeting Document : WG-FSA-17/65 : Auteur(s): L. Wei and G.P. Zhu

4. Brief report on scientific observation on the fishery vessel Mellas (FAO Statistical Area 41, January to July 2006)

   Abstract:  Materials on results of scientific observation in fishery cruise on the longliner ... “Mellas”, operating under the Ukrainian flag in FAO statistical area 41 in the southwest Atlantic outside ... ) fisheries are submitted. The data on volume of the biological material collected in the cruise, the data on ...

   Meeting Document : WG-FSA-06/13 : Auteur(s): S. Usachev (Ukraine)

5. Krill conversion factors

   of different krill products are examined and a range of values produced. These are broadly in line ... with those currently in use although the differences are such that use of the traditional factors may ... practice in the fishery, if it is then the use of any of the conversion factors will result in a serious ...

   Meeting Document : WG-EMM-01/39 : Auteur(s): I. Everson (United Kingdom)

6. Proposal for a revised summary table used for assessment of new and ongoing research plans

   Abstract:  At WG-SAM-2019, it was highlighted that some of the language in the table used to ... assess research plans in data-poor fisheries was ambiguous, in particular to delegates that do not have ... English as their first language. In this paper, we propose some revisions to the table to attempt to ...

   Meeting Document : WG-FSA-2019/55 : Auteur(s): C. Péron and D. Welsford

7. Cephalopods and mesoscale oceanography at the Antarctic polar front: satellite tracked predators locate pelagic trophic interactions

   Abstract:  Predator data and exploratory fishing in the Scotia Sea have revealed the presence of ... cephalopod stocks in the Antarctic Polar Frontal Zone (PFZ). This is a vast, remote region where large ... monitor foraging at sea in January-March 1994. A foraging area at the PFZ, north of South Georgia, was ... RMT25 sampled 200 m layers to 1000 m in daylight and darkness. Cephalopods were simultaneously recovered ...

   Meeting Document : WG-EMM-96/12 : Auteur(s): Murphy, E.J., Trathan, P.N., White, M.G., Bone, D.G., Hatfield, E.M.C., Rodhouse, P.G., Prince, P.A., Watkins, J.L.

8. OTOLITH-BASED AGEING OF THE PATAGONIAN TOOTHFISH (DISSOSTICHUS ELEGINOIDES) FOR THE HEARD AND MCDONALD ISLANDS: MODELLING FIXED AND RANDOM READER ERROR USING MULTIPLE READINGS OF A REFERENCE COLLECTION

   calibration require an ageing error matrix as input in order to adequately account for uncertainty in the data ... were modelled in two stages. In the first stage the frequency of the absolute value of IE, the AIE ... age classes were modelled using continuation ratios and predicted proportions in each AIE class ... to the AIE 0 class as readability improved while, in general, it increased as age increased. To model ...

   Meeting Document : WG-FSA-09/21 : Auteur(s): S.G. Candy, G.B. Nowara, D.C. Welsford and J.P. McKinlay (Australia)

9. OTOLITH-BASED AGEING OF THE PATAGONIAN TOOTHFISH (DISSOSTICHUS ELEGINOIDES) FOR THE HEARD AND MCDONALD ISLANDS: MODELLING FIXED AND RANDOM READER ERROR USING MULTIPLE READINGS OF A REFERENCE COLLECTION

   calibration require an ageing error matrix as input in order to adequately account for uncertainty in the data ... were modelled in two stages. In the first stage the frequency of the absolute value of IE, the AIE ... age classes were modelled using continuation ratios and predicted proportions in each AIE class ... to the AIE 0 class as readability improved while, in general, it increased as age increased. To model ...

   Meeting Document : WG-SAM-09/07 : Auteur(s): S.G. Candy, G.B. Nowara, D.C. Welsford and J.P. McKinlay (Australia)

10. 2007 krill biomass update of the South Shetland and Elephant Island regions of Area 48

    Abstract:  Antarctic krill biomass trends in the South Shetland Island region of Area 48 are ... 2007), acoustic biomass estimates previously presented at the 2006 WG-EMM meeting in Namibia (WG-EMM-06 ... /32). In 2007, biomass in the South Shetland Islands region exceeded 19 million tons. This increase ...

    Meeting Document : WG-EMM-07/31 : Auteur(s): C.S. Reiss and A.M. Cossio (USA)

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