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Scientific Abstracts 1992
the Australian SIBEX-II data. The Australian SIBEX-II estimate falls in the middle of the range of ... maturity of krill in the inshore foraging areas, middle-sized krill (modal length 43 mm), which consisted ...
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Scientific Abstracts 1998
climate variation. Fur seal foraging trip duration was transformed into a normally distributed index of ... of de- pendence on krill, the feasibility of taking alternative prey and constraints on trip duration ... 50% in macaroni) and to doubling of foraging trip duration in albatrosses. Breeding success was ... two years when pack-ice was sparse. Foraging trip duration differed by colony, season and year and ...
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Zooplankton: Trophic modelling of the Ross Sea
), and in the eastern parts (Ackley et al. 2003). Distribution information (Azzali et al. 2006; Ackley ... content of E. crystallorophias from May 1961 – January 1962. Lipids made up to 36% of body dry weight ... biomass in these eastern waters would improve confidence in our estimates of average E. crystallorophias ... 2000 m (Marr 1962). After hatching, larvae develop as they ascend the water column and arrive near the ...
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Scientific Abstracts 2000
(Terra Nova Bay, Ross Sea, Subarea 88.1) and Béchervaise Island (Mawson, Eastern Antarctica, Division ... tonnes for the western portion and 1.79 for the eastern one. We suggest the calculation of new ... intermediate cold layer. In some years of this type (1971, 1972, 1978, 1982) the layer had a positive ... allowed contin- uous collection of data on foraging trip duration and meal mass (arrival weight minus ...
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Birds: Trophic modelling of the Ross Sea
eastern Ross Sea to forage (Kooyman et al. 1996). We assume that the majority of feeding during all of ... foraging trip of emperor penguins lasts several days and even weeks but diet values are only from the last ... 2–3 days of trip and may not be representative of the whole trip (Cherel & Kooyman 1998). Diets for ... Byrd Land in the eastern Ross Sea (Ainley et al. 1984). Broady et al. (1989) reports approximately 10 ...
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Seals: Trophic modelling of the Ross Sea
population of about 1500 animals occurs on the eastern side of McMurdo Sound (Testa & Siniff 1987), with ... to carbon using a ratio of 0.4 gC/gWW (Vinogradov 1953; Curl 1962). These three methods differed ... . Bengtson, J.L; Stewart, B.S. 1997. Diving patterns of a Ross seal (Ommatophoca rossii) near the eastern ... Heidelberg New York, pp 516-533. Curl, H.S. 1962. Analyses of carbon in marine plankton organisms. Journal ...
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Scientific Abstracts 2006
during their fledging period, defined as the time between a chick’s first trip to sea and its final ... parental provisioning, behaviours not observed in other Pygoscelis species. Chicks took their first trip ... . During this fledging period, individual chicks made an average of five trips to sea. Trip duration ... investigate the use of acoustics to estimate middle trophic level prey organisms (e.g. krill and mesopelagic ...
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Scientific Abstracts 2004
different sized krill during the chick-rearing period. Foraging trip durations during the chick phase were ... longer than during the 2002/03 breeding season. The interpretation of the foraging trip behaviour may ... ). The middle-length and small-length groupings are associated with Weddell Sea waters. An additional ... the eastern Scotia Sea. The comparative analysis of results from surveys in 1984, 1988 and the ...
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Scientific Abstracts 1994
1985 from the SIBEX-II data. The Australian SIBEX-II estimate falls in the middle of the range of ... the middle of summer (late February to late March). Krill with a modal length of 45 mm were dominant ... obtained from one large school of fish in the eastern shelf of the Bering Sea during an inter-calibration ... full mammae, indicating that mammary volume capacity is unlikely to limit foraging trip duration. Upon ...
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Scientific Abstracts 2002
Georgia over the continental shelf. Foraging trip characteristics differed between males and females ...
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