Search results
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Differences in distribution and population structure of krill (Euphausia superba) between penguin and fur seal foraging areas near Seal Island
, in the inshore foraging areas middle-sized krill (modal length 43 mm), which consisted mainly of nongravid krill ... foraging areas middle-sized krill (modal length 43 mm), which consisted mainly of nongravid krill, were ...
Meeting Document : WG-KRILL-92/27 : Author(s): T. Ichii, H. Ishii (Japan), J.L. Bengtson, P. Boveng, J.K. Jansen (USA) and M. Naganobu (Japan)
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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?
during early winter, but all adults could feed on similar food items during middle to late winter ... winter, but all adults could feed on similar food items during middle to late winter. The trophic niche ...
Meeting Document : WG-EMM-2019/P04 : Author(s): G.P. Zhu, H.T. Zhang, B. Deng and Q.Y. Yang
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The diet of Antarctic fur seals Arctocephalus gazella during the breeding season at South Georgia
% were taken between early February and the middle of March. Champsocephalus gunnari and Lepidonotothen ... % were taken between early February and the middle of March. Champsocephalus gunnari and Lepidonotothen ...
Meeting Document : WG-EMM-95/28 : Author(s): Arnould, J.P.Y., Reid, K.
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Foraging and provisioning in Antarctic fur seals: interannual variability in time-energy budgets
seals have episodic bouts of suckling 0-3 days), alternating with foraging trips (3-10 days). Foraging ... episodic bouts of suckling 0-3 days) , alternating with foraging trips (3-10 days). Foraging time budgets ... varied significantly (P < .001) among 8 consecutive years at Bird Island, South Georgia. Foraging trip ... years than foraging trip duration but declined during a year of particularly low food availability ...
Meeting Document : WG-EMM-99/32 : Author(s): I.L. Boyd (United Kingdom)
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The effects of CEMP monitoring procedures on Adelie penguin colonies
the incubation period or for several consecutive trips during chick rearing resulted in increased foraging trip ... durations and reduced breeding success. Attachment for a single foraging trip post-hatching caused ... no significant increase in foraging trip durations nor any detectable effect on water turnover rates ... consecutive trips during chick rearing resulted in increased foraging trip durations and reduced breeding ...
Meeting Document : WG-CEMP-93/19 : Author(s): J. Clarke, K. Kerry (Australia)
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The use of analysis of penguin stomach contents in simultaneous study of prey and predator parameters
no ,lInHHe KpHn5I, nonY4eHHble no OT ,lIenbHbIM npo6aM, HeBOMO)l{HO CBeCTH BOe,llHHO B CB5I3H C TeM, 4TO ... dates" variability and shows a significant result. Obviously, penguins do not observe religious fasts ... Paper Title: The use of analysis of penguin stomach contents in simultaneous study of prey and ... found in the stomach of a given penguin prevents the pooling of krill lengths from different samples ... . Samples taken in Bahía Esperanza were used to illustrate the different approaches to this analysis. A ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 367–375 : Author(s): Marschoff, E. and B. González
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Estimates of the tag loss rates for single and double tagged toothfish (Dissostichus mawsoni) fishery in the Ross Sea
Abstract: The rate at which tags are lost from tagged toothfish is an important parameter ... tags are lost from tagged toothfish in Subareas 88.1 and 88.2 from a sample of 969 double tagged ... tags were lost almost immediately, and then there was an ongoing rate of about 0.039 (95% C.I.s 0.027 ... The rate at which tags are lost from tagged toothfish is an important parameter in modelling ...
Meeting Document : WG-SAM-11/18 : Author(s): A. Dunn, M.H. Smith (New Zealand), D.J. Agnew (UK) and S. Mormede (New Zealand)
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Development of foraging behaviour and evidence of extended parental care in the gentoo penguin (Pygoscelis papua)
of gentoo penguin chicks during their “fledging period”; defined as the time between a chick’s first trip ... their first trip to sea at a mean age of 70 days of age, before finally departing the colony at an average age ... of 82 days. During this fledging period, individual chicks made an average of five trips to sea. Trip ... duration increased significantly with chick age as trips to sea becoming more similar to adult foraging ...
Meeting Document : WG-EMM-06/8 : Author(s): M. Polito and W.Z. Trivelpiece (USA)
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Progress towards a trophic model of the ecosystem of the Ross Sea, Antarctica, for investigating effects of the Antarctic toothfish fishery
absence of krill, Antarctic silverfish (Pleuragramma antarctica) are probably the major middle-trophic ... of krill, Antarctic silverfish (Pleuragramma antarctica) are probably the major middle-trophic level link ...
Meeting Document : WG-EMM-06/14 : Author(s): M. Pinkerton, S. Hanchet and J. Bradford-Grieve (New Zealand)
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Longline sink rates on a bottom autoline vessel in New Zealand: draft
Depth Recorders was also developed and is documented. The study found the middle of an unweighted ... Depth Recorders was also developed and is documented. The study found the middle of an unweighted ...
Meeting Document : WG-FSA-98/51 : Author(s): N.W. McL. Smith (New Zealand)