Résultats de la recherche
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Updated status of Notothenia rossii, Gobionotothen gibberifrons and Notothenia coriiceps in inshore sites of the South Shetland Islands: results of a long-term monitoring program (1983–2016) at Potter Cove
, to achieve a 33-year record, 1983-2016, to monitor changes in the prevalence of three species of ... around the South Shetland Islands: 1) a continuous increase in the abundance of N. rossii; 2) further ... decline in G. gibberifrons recruitment evidenced by the low proportions of juvenile fish; and 3) a high ... abundance of N. coriiceps. Results were also consistent with trends in seabirds that feed on juveniles of ...
Meeting Document : WG-FSA-16/02 : Auteur(s): E. Barrera-Oro, E. Marschoff and D. Ainley
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Foraging strategies of chinstrap penguins at Signy Island, Antarctica: importance of benthic feeding on Antarctic krill
trip patterns and diving behaviour of chinstrap penguins breeding at Signy Island, Antarctica, using ... both types of trip fed almost exclusively on Antarctic krill. There was a positive relationship between ... foraging trip duration). These results highlight the potential importance of benthic feeding on Antarctic ... : Foraging strategies of chinstrap penguins at Signy Island, Antarctica: importance of benthic feeding on ...
Meeting Document : WG-EMM-03/37 : Auteur(s): A. Takahashi (Japan), M.J. Dunn, P.N. Trathan (United Kingdom), K. Sato, Y. Naito (Japan), J.P. Croxall (United Kingdom)
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The efficacy of video-based electronic monitoring technology for at-sea monitoring of the halibut longline fishery
) and time, location and depth at set start and finish. The results of this study demonstrated that EM ... technology for at-sea monitoring of the halibut longline fishery Approval: Approved ... Abstract: This project involved the large-scale deployment of electronic monitoring (EM) systems ... on the 2002 British Columbia halibut longline fishery to evaluate the feasibility of EM as an ...
Meeting Document : WG-FSA-03/100
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Breeding biology of Adélie penguin (Pygoscelis adeliae) at Edmonson Point CEMP site (Ross Sea, Antarctica): report of the first five years
penguin rookery was studied in terms of colony layout, breeding chronology, foraging trip duration ... (Australia) Title: Breeding biology of Adélie penguin (Pygoscelis adeliae) at Edmonson Point CEMP site (Ross ... the fifth year. The study site was located in the Adélie penguin (Pygoscelis adeliae) colony of ... Edmonson Point (74°20'56.7" S, 165°08'10.03" E). The aim of this research was to obtain ...
Meeting Document : WG-EMM-99/60 : Auteur(s): S. Olmastroni, S. Corsolini, F. Pezzo, S. Focardi (Italy) and K. Kerry (Australia)
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RECENT TRENDS IN NUMBERS OF FOUR SPECIES OF PENGUINS AT THE PRINCE EDWARD ISLANDS
Abstract: Four species of penguin breed regularly at South Africa’s Prince Edward Islands: king ... pairs of king penguins were incubating eggs at Marion Island, the larger of the two islands in the group ... penguin chicks survived the winter period (from April to September/October). Numbers of gentoo penguins at ... numbers of macaroni and southern rockhopper penguins at Marion Island decreased by about 30% and 70 ...
Meeting Document : WG-EMM-10/P1 : Auteur(s): R.J.M. Crawford, P.A. Whittington, L. Upfold, P.G. Ryan, S.L. Petersen, B.M. Dyer and J. Cooper
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Recent trends in numbers of four species of penguins at the Prince Edward Islands
Abstract: Four species of penguin breed regularly at South Africa’s Prince Edward Islands: king ... pairs of king penguins were incubating eggs at Marion Island, the larger of the two islands in the group ... penguin chicks survived the winter period (from April to September/October). Numbers of gentoo penguins at ... numbers of macaroni and southern rockhopper penguins at Marion Island decreased by about 30% and 70 ...
Meeting Document : WG-EMM-10/P01 : Auteur(s): R.J.M. Crawford, P.A. Whittington, L. Upfold, P.G. Ryan, S.L. Petersen, B.M. Dyer and J. Cooper
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Measurements of differences in the target strength of Antarctic krill (Euphausia superba) swarms at 38 and 120 kHz
Abstract: Differences in the target strength of adult Antarctic krill (Euphausia Superba) at 38 ... experimental work on the target strength of encaged E. Superba at 38 and 120 kHz but are in major conflict with ... of Antarctic krill (Euphausia superba) swarms at 38 and 120 kHz Approval: Approved ... and 120 kHz have been inferred from differences in the mean back-scattering strength of swarms ...
Meeting Document : WG-KRILL-90/28 : Auteur(s): I. Hampton (South Africa)
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ESTIMATES OF NUMBERS OF KELP GULLS AND KERGUELEN AND ANTARCTIC TERNS BREEDING AT THE PRINCE EDWARD ISLANDS, 1996/97–2008/09
Abstract: Breeding numbers of Laridae and other surface-nesting seabirds have been monitored at ... subantarctic Marion Island since 1996/97 and counts of breeding birds were made at nearby Prince Edward Island ... the 1980s. Kerguelen tern numbers decreased and then recovered at Marion Island but numbers of the ... P.G. Ryan Title: ESTIMATES OF NUMBERS OF KELP GULLS AND KERGUELEN AND ANTARCTIC TERNS BREEDING AT THE ...
Meeting Document : WG-EMM-10/P5 : Auteur(s): P.A. Whittington, R.J.M. Crawford, B.M. Dyer and P.G. Ryan
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Estimates of numbers of kelp gulls and Kerguelen and Antarctic terns breeding at the Prince Edward Islands, 1996/97–2008/09
Abstract: Breeding numbers of Laridae and other surface-nesting seabirds have been monitored at ... subantarctic Marion Island since 1996/97 and counts of breeding birds were made at nearby Prince Edward Island ... the 1980s. Kerguelen tern numbers decreased and then recovered at Marion Island but numbers of the ... in December 2001 and December 2008. Four species are regular breeders at the islands: subantarctic ...
Meeting Document : WG-EMM-10/P05 : Auteur(s): P.A. Whittington, R.J.M. Crawford, B.M. Dyer and P.G. Ryan
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Summary of holdings of Patagonian toothfish (Dissostichus eleginoides) otoliths and size-at-age estimates from Heard and McDonald Islands (Division 58.5.2)
has yielded data which has assisted with understanding age structure and growth rates of toothfish in ... this Division. This paper summarises the otolith collection housed at the Australian Antarctic Division ... individuals which have been processed by the Central Ageing Facility to provide size-at-age estimates. Over ... collected from recaptured tagged fish. More than 3200 otoliths have been processed to provide size-at-age ...
Meeting Document : WG-FSA-07/45 : Auteur(s): D.C. Welsford and G.B. Nowara (Australia)