Résultats de la recherche
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Informe preliminar sobre un viaje de pesca de merluza negra (Dissostichus eleginoides) del B/P Viarsa I, en el Océano Indico oriental (Área Estadística 57) – Abril–junio 2002
”, in the eastern Indian Ocean (FAO Statistical Area 57). The fishing trip was performed from the 13 of ... in the Grade 4 of gonadic maturity (C, D, E fishing zones). The A and B zones corresponded with the ... juvenile individuals of both sexes, with immature gonads. Rests of the same species (cannibalism), eel-cod ...
Meeting Document : WG-FSA-02/67 : Auteur(s): H. Nion y O.D. Pin (Uruguay)
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How trophic dynamics of adult Antarctic krill Euphausia superba responses to the condition of no ice in the water during the winter: a case study at South Georgia?
larger adults during early winter, but all adults could feed on similar food items during middle to late ... diet of adult krill with size and month during the winter season (June to September 2016) at the South ... N values between sexes of krill. Nitrogen isotope signatures suggested increasing carnivory with ...
Meeting Document : WG-EMM-2019/P04 : Auteur(s): G.P. Zhu, H.T. Zhang, B. Deng and Q.Y. Yang
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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 ... , 1991 and 1992, respectively) and was correlated with annual measures of breeding adult body weight and ...
Meeting Document : WG-EMM-06/P6 : Auteur(s): 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
nine year means for these parameters at our study site. The chinstrap penguin breeding population has ... penguins ate mainly Antarctic krill, with a strong component of juvenile krill in their diet samples ... mean foraging trip duration during chick- rearing was approximately one hour longer than in 2005-06 ... in interpreting the foraging trip data. Fledgling success and chick fledging mass in 2006-07 were ...
Meeting Document : WG-EMM-07/P1 : Auteur(s): 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 : Auteur(s): 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’
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 ... and chronology. Cameras have been installed in the middle of breeding season due to late arrival and ...
Meeting Document : SC-CAMLR-XXXV/BG/27 : Auteur(s): 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 : Auteur(s): 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 : Auteur(s): 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 : Auteur(s): C. Brooks and K. Goetz (USA)
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Cetaceans as indicators of historical and current changes in the East Antarctica ecosystem
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 ... species could result from competition with other recovering krill-eater large whale species, e.g. the ... the information is scattered and needs to be combined with new surveys in a comprehensive and ...
Meeting Document : WG-EMM-16/64 : Auteur(s): Y. Fujise and L.A. Pastene