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1. Scientific Abstracts 1999

   which increased the accuracy of total length estimates. WG-EMM-99/30 Relationships between the dis ... from exploitation of seals and whales, Antarctic fisheries began in the late 1960s with exploitation ... . Levels of photosynthetically active radiation 3–5 times below surface irradiance caused krill to die ... , foraging trip duration and diet led to the conclusion that the death of chicks during the guard stage ...

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2. Zooplankton: Trophic modelling of the Ross Sea

   ), and in the eastern parts (Ackley et al. 2003). Distribution information (Azzali et al. 2006; Ackley et al. 2003 ... of E. crystallorophias from May 1961 – January 1962. Lipids made up to 36% of body dry weight during late summer ... . We note that measurements of E. crystallorophias biomass in these eastern waters would improve ... . The eggs then sink and hatch at depth, probably to about 850–1000 m or even to 2000 m (Marr 1962). After ...

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3. Scientific Abstracts 1992

   the Australian SIBEX-II data. The Australian SIBEX-II estimate falls in the middle of the range of densities ... the day. With regard to body size and maturity of krill in the inshore foraging areas, middle-sized krill ...

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4. Scientific Abstracts 1998

   1997/98: a dis- cussion of possible causes. R. Hucke-Gaete, D. Torres, A. Aguayo and V. Vallejos ... foraging trip duration was transformed into a normally distributed index of environmental variation ... - pendence on krill, the feasibility of taking alternative prey and constraints on trip duration and/or meal ... of foraging trip duration in albatrosses. Breeding success was reduced by 50% in grey-headed alba- tross ...

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5. SC-CAMLR-SSP/8

   .............. .......... .... ............ ..... ... ....... .... 225 PROSPECCIONES A PEQUENA ESCALA DEL KRILL: SIMULACIONES BASADAS EN DIS1RIBUCIONES CONOCIDAS DE ... varied locally. Krill was predominantly found in fish collected on the eastern shelf while mysids were ...

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6. Scientific Abstracts 2000

   and D. Ramm (Università degli Studi di Siena, Italy), 12 pp. (English, unpublished). Satellite monitoring ... -frequency analysis, used by Italian expeditions to the Ross Sea to dis- criminate Euphausia superba (krill ... of foraging trips (A5), breeding success (A6), chick diet (A8) and breeding chronology (A9). For Antarctic ... , Subarea 88.1) and Béchervaise Island (Mawson, Eastern Antarctica, Division 58.4.2). Possible links ...

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7. Birds: Trophic modelling of the Ross Sea

   then alternately forage (trips taking 1–3 weeks) and provision the chick for about 150 days (Dewey 1999) until Dec ... fledging and before moulting when adults travel up to 1200 km to eastern Ross Sea to forage (Kooyman et ... . Note that the 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 ...

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8. Seals: Trophic modelling of the Ross Sea

   1987; Stewart et al. 2003). A relatively stable population of about 1500 animals occurs on the eastern ... of prey items was converted to carbon using a ratio of 0.4 gC/gWW (Vinogradov 1953; Curl 1962 ... ; Stewart, B.S. 1997. Diving patterns of a Ross seal (Ommatophoca rossii) near the eastern coast ... . Curl, H.S. 1962. Analyses of carbon in marine plankton organisms. Journal of Marine Research 20:181 ...

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9. 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 ... increased significantly with chick age, as trips to sea become more similar to adult foraging trips in both ...

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10. Scientific Abstracts 2004

    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 be clarified when we finish our analyses ... the parents increased the number of daily foraging trips, usually taking turns to have time at sea. Compared ... to the incubating period, when rearing chicks, individuals of both sexes reduced the length of their foraging trips ...

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