Résultats de la recherche
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Predicting changes in the Antarctic krill Euphausia superba population at South Georgia
length ill the diet of predators at South Georgia from 1991-1997, allowed predictions to be made about ... first occasion when the future status and structure of the krill population at South Georgia has been ... environmental variation at a range of spatial scales. Author(s): K. Reid, K.E. Barlow, J.P. Croxall and R.I ... of Antarctic krill Euphausia superba and subsequent effects on dependent predators. However, the ...
Meeting Document : WG-EMM-99/37 : Auteur(s): K. Reid, K.E. Barlow, J.P. Croxall and R.I. Taylor (UnitedKingdom)
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Cephalopods and mesoscale oceanography at the Antarctic polar front: satellite tracked predators locate pelagic trophic interactions
monitor foraging at sea in January-March 1994. A foraging area at the PFZ, north of South Georgia, was ... Abstract: Predator data and exploratory fishing in the Scotia Sea have revealed the presence of ... used satellite tagged predators and shipboard acoustics for coarse and fine scale location of ... between cephalopod distribution and mesoscale oceanographic features at the PFZ. Satellite tags were ...
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.
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Population trends and reproductive success at a frequently visited penguin colony on the western Antarctic Peninsula
frequently visited locations, is at the epicenter of a rapid shift in which an Adélie penguin dominated fauna ... Adélie and gentoo penguins breeding at Petermann Island were monitored to identify drivers of this rapid ... to other sites and is an unlikely explanation for the precipitous decline of Adélie penguins at ... Abstract: Petermann Island (65°10'S, 64°10'W), one of the Antarctic Peninsula’s most ...
Meeting Document : WG-EMM-16/P07 : Auteur(s): H.J. Lynch, W.F. Fagan and R. Naveen
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New bird guide for observers at sea in southern Indian Ocean
Abstract: This photographic guide has been developed with the aim of assisting observers at sea ... in the correct identification of seabirds. It does this through providing several images for each ... species, at different stages and different angles both in the air and in the water. This project has been ... achieved thanks to French observers at sea working in Kerguelen and Crozet waters under the TAAF ...
Meeting Document : WG-FSA-15/70 : Auteur(s): N. Gasco, K. Delord and C. Barbraud (France)
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RECRUITMENT AND BODY SIZE IN RELATION TO TEMPERATURE IN JUVENILE PATAGONIAN TOOTHFISH (DISSOSTICHUS ELEGINOIDES) AT SOUTH GEORGIA
commercially important, deepwater nototheniid fish, was examined at the sub-Antarctic island of South Georgia ... mirrored those previously observed in a range of krill-dependent land-based predators at South Georgia for ... forecasts of years of good or poor recruitment for the toothfish fishery at South Georgia Author(s): M ... . Abundance of the 1+ juvenile fish cohort (13 to 15 month old dependent on survey date) was found to vary ...
Meeting Document : WG-FSA-08/P02 : Auteur(s): M. Belchier and M.A. Collins
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Fishing gear, oil and marine debris associated with seabirds at Bird Island, South Georgia, 1993/94
Abstract: We record the first observations of oiled albatrosses at South Georiga, provide data on ... Georgia sea-birds at present, the increase in number and variety of environmental threats is a cause for ... ingestion of plastics by albatrosses and giant petrels and report a six-fold increase over the previous year ... of the incidence of fishing line and hooks associated with, regurgitated by and impaled in seabirds ...
Meeting Document : SC-CAMLR-XIII/BG/04 : Auteur(s): Delegation of United Kingdom
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Characterising the preferred at-sea habitats used by chinstrap penguins and the fishery for Antarctic krill: slow-flowing, nearshore waters over shallow bathymetry
of chinstraps breeding at the South Shetland Islands, based on the distance from the colony, and the ... bearing to the shelf edge, adjusting for the at-sea density of Pygoscelis penguins from other colonies ... chinstrap penguins breeding at the South Orkney Islands, can be modified to predict the at-sea distribution ... locations of animals during the breeding season from untracked colonies, even in different regions and ...
Meeting Document : WG-EMM-17/34 : Auteur(s): P.N. Trathan, V. Warwick-Evans, J. Hinke, E.F. Young, A.P.B. Carneiro, M.P. Dias, K. Kovacs, O.R. Godø and M. Santos
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Considerations about managing the krill fishery at small spatial and temporal scales
detail, and a lot of detail is potentially necessary for managing at these smaller scales. Much of this ... harvest levels, including the implementation of regular acoustic surveys at different times of year to ... Abstract: We discuss a number of ecological issues in relation to CCAMLR’s aspiration for ... managing the krill fishery at small temporal and spatial scales. We highlight that the devil is in the ...
Meeting Document : WG-EMM-2019/22 : Auteur(s): P.N. Trathan, V. Warwick-Evans and E. Young
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Exploring the ASPM as an alternative method to estimate the Patagonian toothfish biomass at CCAMLR Subarea 48.3
produce a good fit of the model both, to CPUE series and proportion-at-length data from CCAMLR dataset ... Abstract: ASPM have been proposed and applied for Patagonian toothfish stock assessment at CCAMLR ... Subarea 48.3. Last results obtained from this model, discussed at WG-FSA (2004), do not show acceptable ... discuss some of the problems related with available CPUE data and estimate new vulnerability patterns to ...
Meeting Document : WG-FSA-SAM-05/5 Rev. 1 : Auteur(s): O.C. Wöhler, P.A. Martínez and A. Aubone (Argentina)
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Estimated food consumption by penguins at the Prince Edward Islands
Abstract: The consumption of food by the four species of breeding penguins at the Prince Edward ... Islands is assessed on an annual and seasonal basis. Total annual food consumption was estimated at 880 ... 000 t, of which king penguins accounted for 74%, macaroni penguins 21%, rockhopper penguins 5% and ... consumption by penguins at the Prince Edward Islands Approval: Approved ...
Meeting Document : WG-Joint-94/15 : Auteur(s): N.J. Adams, C. Moloney and R. Navarro (South Africa)