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Effects of variability in prey abundance on reproduction and foraging in chinstrap penguins (Pygoscelis antarctica)
, number of trips day–1, trip duration, number of dives trip–1 and dive rate) did not differ between years ... contend with large interannual fluctuations in prey availability and hence the cost of chick provisioning ... . Adults faced with this uncertainty can mechanistically balance parental care by adopting a strategy ... somewhere along the continuum between maintaining constant investment in foraging effort between years and ...
Meeting Document : WG-EMM-06/P6 : Автор(ы): D.A. Croll, D.A. Demer, R.P. Hewitt, J.K. Jansen, M.E. Goebel and B.R. Tershy (USA)
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Seabird research at Cape Shirreff, Livingston Island, Antarctica, 2006/07
lowest population size in the 10 years of census data. The number of diet samples containing fish was the ... highest ever and comparable to the first six years of the study. Unlike 2005-06, 18% of the gentoo penguin ... been declining for the past seven years and is at its lowest size in the 10 years of study. Chinstrap ... penguins ate mainly Antarctic krill, with a strong component of juvenile krill in their diet samples ...
Meeting Document : WG-EMM-07/P1 : Автор(ы): R. Orben, S. Chisholm, A. Miller and W.Z. Trivelpiece (USA)
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Age and growth of the Antarctic skate (Amblyraja georgiana) in the Ross Sea
viewed with transmitted white light provided the clearest growth bands, but reading precision was low ... maximum age was 14 years, but this should be regarded as a conservative estimate of longevity because of ... respectively) produced estimated ages at maturity of 6–7 years for males and 8–11 years for females. These ... estimates are near the middle to upper end of the range of ages at maturity for skates worldwide. Author(s ...
Meeting Document : WG-FSA-04/29 : Автор(ы): M.P. Francis and C. Ó Maolagáin (New Zealand)
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Cameras installation by Ukraine at the Galindez, Petermann and Yalour Islands penguin colonies – CEMP Fund project ‘Establishing a CEMP Camera Network in Subarea 48.1’
and chronology. Cameras have been installed in the middle of breeding season due to late arrival and ... activity and for monitoring that can assist with camera data validation. Winteres will fullfill the ... observations of gentoo penguin activity and breeding at Galindez Island sites start from early season in ...
Meeting Document : SC-CAMLR-XXXV/BG/27 : Автор(ы): Delegation of Ukraine
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The winter distribution of Adélie and chinstrap penguins from two breeding colonies in the South Shetland Islands of Antarctica
with satellite tags in early March 2000, following their annual molt; similarly, two birds were tagged ... Adélie penguins with PTTs were tracked from mid-February to early April 2001, following their molt in the ... signal was lost just to the west of the South Sandwich Island group in late July, approximately 1300 km ... Weddell Sea where they presumably hauled out to molt in late March – early April, between 69° and 70° S ...
Meeting Document : WG-EMM-02/55 : Автор(ы): S.G. Trivelpiece and W.Z. Trivelpiece (USA)
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Beach debris survey – Main Bay, Bird Island, South Georgia 1998/99
Abstract: The ninth year of surveys of beach man-made debris at Bird Island, South Georgia ... remain at least three times the level of the early 1990's and provide continued cause for concern ... , suggesting that CCAMLR needs to enhance its campaign to reduce the amount of man-made debris being jettisoned ...
Meeting Document : SC-CAMLR-XIX/BG/05 : Автор(ы): Delegation of the United Kingdom
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Pleuragramma antarcticum distribution in the Ross Sea during late austral summer 2013
Abstract: Research during the last decade has revealed much about the early life history of ... the central Ross Sea and one location in the far south of the eastern Ross Sea (in the Bay of Whales ... cruise supports growth rates and hatching times consistent with reported hatching events in Terra Nova ... , suggesting the presence of a potential eastern Ross Sea nursery ground. This late hatching period may be ...
Meeting Document : WG-EMM-14/38 : Автор(ы): C. Brooks and K. Goetz (USA)
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Cetaceans as indicators of historical and current changes in the East Antarctica ecosystem
middle of the past century and the recovery of krill-eater large whales since the 1980’s. There was an ... Antarctica (70°E-170°W) showed that the increased krill availability in the middle of the past century could ... in energy storage and stomach content weight since the 1980’s. This observation is consistent with ... recruitment is consistent with the total abundance of Antarctic minke whale estimated by sighting surveys ...
Meeting Document : WG-EMM-16/64 : Автор(ы): Y. Fujise and L.A. Pastene
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Beach debris survey – Main Bay, Bird Island, South Georgia 1996/97
use. The reduction in man-made debris compared to the two previous years may reflect a reduction in ... Abstract: The seventh year of surveys of beached man-made debris at Bird Island, South Georgia ... revealed a total of 289 items, 60 % less than in the two previous years. Of the total number of items, 62 ... monitoring and the need for further steps to counteract the jettisoning of man-made debris in the Southern ...
Meeting Document : CCAMLR-XVII/BG/7 : Автор(ы): Delegation of the United Kingdom
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Diet and prey consumption of Antarctic petrels Thalassoica antarctica at Svarthamaren, Dronning Maud Land and at sea outside the colony
Abstract: The diet of the Antarctic petrel Thalassoica antarctica was studied during two years at ... %), followed by fish (29%) and squid (3%), whereas individuals collected in the pack ice took mostly fish (95 ... at Antarctic petrels from Svarthamaren may fly more than 3,000 km during one foraging trip and may ...
Meeting Document : WG-EMM-97/58 : Автор(ы): Røv, N., Lorentsen, S., Klages, N.
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