Search results
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Scientific Abstracts 2004
summer by an order of magnitude over the last decade, indicates that debris is still being lost ... 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 ... place in a healthy, complete marine ecosystem will have been lost. WG-EMM-04/22 Foraging patterns ...
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Scientific Abstracts 2006
is still being lost by vessels into the marine environment and marine vessels working in this region ... 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 ...
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Whales: Trophic modelling of the Ross Sea
of Innes et al. (1987) by a middle value of 1.3. Method 5. Here, we use an estimate of standard ... in the 1960s and 1970s, Bigg & Wolman (1975) calculated the relationship between body length and weight ... orca have peak birthing rates in late summer/early autumn but that births occur year round. Data from ... remains were identified as the primary item found in the stomachs of orca taken by whalers in the 1960s ...
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Scientific Abstracts 2001
, and for the first time, with grey-headed albatrosses. One Antarctic prion stomach, out of five dis- sected ... , was G = 0.99, indicating an early initiation of the spawning season. This is thought to be the first step ... 2000 (early- season); during late December/early January 2000/01 (mid-season), and in March 2001 ... regularly since 1996 (and on a more ad hoc basis since the early 1980s). We hoped that conducting several ...
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Scientific Abstracts 1994
estimate falls in the middle of the range of densities estimated from seven surveys conducted between 1981 ... to the north of Livingston Island. The highest values of CPUE occurred in the middle of summer (late February ... superba) from austral early summer to midsummer in 1983/84 in the vicinity of Prydz Bay, Antarctica ... ratio and the coefficient of fatness which took place from early to mid-summer. The high proportion ...
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Scientific Abstracts 2008
the Adélie penguin population at Béchervaise Island, East Antarctica. While the various life stages ... A brief summary of Adélie penguin count data from East Antarctica. C. Southwell and J. McKinlay ... ). This paper very briefly summarises some aspects Adélie penguin count data from East Antarctica ... estimates of penguin abundance derived from published count data: a case study for Adélie penguins in East ...
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SC-CAMLR-SSP/8
.............. .......... .... ............ ..... ... ....... .... 225 PROSPECCIONES A PEQUENA ESCALA DEL KRILL: SIMULACIONES BASADAS EN DIS1RIBUCIONES CONOCIDAS DE ... .%), myctophids (Electrona sp., Gymnoscopelus sp.) (1.8%), early life stages of fish (C. gunnari primarily age ... prevailing in parts of the northwestern shelf, in the southeast and on coastal stations in the east ...
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Scientific Abstracts 1992
and/or the development state of mature females during early summer. The overall distributional patterns during each year ... the Australian SIBEX-II data. The Australian SIBEX-II estimate falls in the middle of the range of densities ... had been lower than expected until early February 1991. As for maturity stages of krill, spawning ... to identify and evaluate their foraging areas during early January 1990/91. Penguin foraging areas were found ...
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Scientific Abstracts 1998
1997/98: a dis- cussion of possible causes. R. Hucke-Gaete, D. Torres, A. Aguayo and V. Vallejos ... ; on longest trips, parents lost body mass. For this penguin species, suc- cessful foraging during chick ... of these years bio- mass was higher to the east. South Georgia and Elephant Islands: biological evidence of same ... foraging trip duration was transformed into a normally distributed index of environmental variation ...
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Scientific Abstracts 1995–1996
trip duration (mean of 4.21 ± 0.54 days; r2 = 0.5, P < 0.04). There were no relationships between MR ... the foraging trip. There was, however, a close negative sigmoidal relationship (r2 = 0.93) between at-sea MR ... during a foraging trip had a positive relationship to the time spent at sea (r2 = 0.58, P < 0.02 ... long trips have higher metabolic rates, the energetic efficiency with which females gain mass ...
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