Résultats de la recherche

1. Food consumption estimates of southern elephant seal females during their post-breeding aquatic phase at South Shetland Islands

   , King George Island (25 de Mayo). During lactation females spent a mean of 6021±1365 Mj, which resulted ... in a loss of 35% of the initial mass, comprising 63% of initial body fat and 20% of initial body ... to recover an average of 55% of the mass, including 46% of the fat, 71% of the protein and 47% of the ... gained while at sea. However, protein loss expressed in absolute terms or as a proportion of that present ...

   Meeting Document : WG-EMM-04/33 : Auteur(s): A.R. Carlini, G.A. Daneri, M.E.I. Márquez (Argentina), H. Bornemann (Germany), H. Panarello, R. Casaux (Argentina), S. Ramdohr and J. Plötz (Germany)

2. An alternative method for estimating the level of illegal fishing using simulated scaling methods on detected effort

   is adequate under circumstances of low evasion and for when good knowledge exists that zero ... observations reflects zero illegal fishing. The new method performs better in the case of zero detections and ... can potentially better handle the evasion of detection by illegal activity. Both the new and the ... current method suffer from the type of observations method used, which directly affects the system. This ...

   Meeting Document : WG-FSA-04/63 : Auteur(s): I. Ball (Australia)

3. Report of the Workshop for the International Coordinated Survey in conjunction with CCAMLR-2000 Survey

   Abstract:  Vessels from Japan, Republic of Korea, Peru and the USA had participated in the conduct ... of five acoustic/oceanographic surveys from late December 1999 and to early March 2000 in conjunction ... %), 39.5 g m-2 (CV 15.2 %) and 43.0 g m-2 (CV 14.1 %) over a nine-week period. Maps of biomass density for ... each of the surveys are presented, and examination of these maps suggests three consistent area of high ...

   Meeting Document : WG-EMM-01/68 : Auteur(s): Delegations of Japan, Rep. of Korea, USA and Peru

4. Trends of the Dissostichus eleginoides stock using the sequential population analysis (SPA) model in Subarea 48.3: 1992-1996

   Abstract:  This paper presents a model of Sequential Population Analysis (SPA), based in catch at ... age data, for the evaluation of the state of the stock of Dissostichus eleginoides from the area 48.3 ... between 1992 to 1996. This, with the objective of knowing the results of management of this stock made ... for the non-lineal calculus process. The application of this model, tuned by auxiliary information of ...

   Meeting Document : SC-CAMLR-XV/BG/14 : Auteur(s): Delegation of Chile

5. Diet and feeding ecology of the diving petrels Pelecanoides georgicus and P. urinatrix at South Georgia

   Abstract:  The diet of the diving petrels Pelecanoides georgicus and P. urinatrix was studied ... Bird Island, South Georgia. The diet of both species was dominated by crustaceans. in particular ... euphausiids (mainly Euphausia superba and some ThysCll1oessa), which contributed 47-76% of the biomass of ... crustaceans in the diet of P. georgicus. and copepods, which contributed 71 % of the biomass of crustaceans in ...

   Meeting Document : WG-EMM-97/10 : Auteur(s): Croxall, J.P., Prince, P.A., Hill, H.J., Edwards, T.M., Reid, K.

6. Entanglement in man-made debris of Antarctic fur seals at Bird Island, South Georgia

   Abstract:  The incidence of entanglement in man-made debris by Antarctic fur seals (Arctocephalus ... gazella) at Bird Island, South Georgia, was monitored throughout the austral winter and summer of 1990/91 ... as part of an ongoing study by the British Antarctic Survey. A minimum of 8 seals were sighted ... entangled, 7 (88%) of which had their neck collars removed, during the winter months (April – October ...

   Meeting Document : CCAMLR-X/BG/05 : Auteur(s): Delegation of UK

7. Surface water masses, primary production, krill distribution and predator foraging in the vicinity of Elephant Island during the 1989-90 austral summer

   Abstract:  Four successive surveys of the pelagic marine environment were conducted over a 100-by ... were collected to describe the thermohaline structure, the distribution of phytoplankton biomass and ... primary productivity, the distribution and demography of krill, and the foraging patterns of krill ... predators. A hydrographic front, north of Elephant Island and aligned southwest-to-northeast, persisted ...

   Meeting Document : WG-CEMP-90/11 : Auteur(s): A.F. Amos, J.L. Bengtson, O. Holm-Hansen, V.J. Loeb, M.C. Macaulay and J.H. Wormuth (USA)

8. Larval development and spawning ecology of euphausiids in the Ross Sea and its adjacent waters in 2004/05

   Abstract:  The horizontal and vertical distributions of larvae and reproductive timing of ... . Occurrences of larvae of Euphausia frigida and E. triacantha were confined to the northern oceanic area where ... distribution further southward to the area where cooler Lower Circumpolar Deep Water prevailed. Larvae of ... juvenile or adult stages. Eggs and larvae of E. superba occurred with gravid females along the slope, but ...

   Meeting Document : WG-EMM-10/P06 : Auteur(s): K. Taki, T. Yabuki, Y. Noiri, T. Hayashi and M. Naganobu

9. Quantifying vessel performance in the CCAMLR tagging program: spatially and temporally controlled measures of relative mortality and tag-detection rates

   CCAMLR of a number of toothfish fisheries in Antarctica, but the evaluation of tagging performance has ... been thus far inconclusive because the confounding effect of factors such as time and location of ... tagging, and size of fish tagged, makes meaningful comparisons between vessels difficult. We propose that ... can derive meaningful indices of relative performance of groups of fishing effort (e.g. vessel, trip ...

   Meeting Document : WG-FSA-12/47 Rev. 1 : Auteur(s): S. Mormede and A. Dunn (New Zealand)

10. Estimating the abundance of pack-ice seals off east Antarctica

    Abstract:  A survey was undertaken to provide estimates of the abundance of crabeater, Ross and ... leopard seal populations in 1,500,000 km2 of pack-ice off east Antarctica between longitudes 60-150oE ... . Sighting surveys were undertaken along almost 10,000 km of survey transect from an icebreaker and two ... helicopters to estimate the density of seals hauled out on the ice in survey strips. The probability of ...

    Meeting Document : WG-EMM-05/23 : Auteur(s): C. Southwell (Australia), D. Borchers, C. Paxton (United Kingdom), B. de la Mare (Canada), P. Boveng (USA), A.S. Blix and E.S. Nordoy (Norway)

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