Resultados de la búsqueda
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Effects of weather and sea-ice on the reproductive performance of the Adélie penguin at Edmonson Point, Ross Sea
(Pygoscelis adeliae) was studied at Edmonson Point, Victoria Land, during the 1999, 2001 and 2003 breeding ... females were significantly longer than in 1999 and 2001, which in turn delayed the mean departure date of ... delayed compared to dates recorded in 1999 and 2001. The average weight of adults rearing chicks was lower ... Point, Victoria Land, during the 1999, 2001 and 2003 breeding seasons. Weather and sea-ice regimes ... than in 1999 and 2001, which in turn delayed the mean departure date of males on the second incubation ... recorded in 1999 and 2001. The average weight of adults rearing chicks was lower in 2003. It is suggested ... pointe Edmonson, en Terre Victoria, pendant les saisons de reproduction de 1999, 2001 et 2003. Les ...
Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 99–109 : Autor(es): Olmastroni, S., F. Pezzo, V. Volpi and S. Focardi
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Areal and seasonal extent of sea-ice cover off the northwestern side of the Antarctic Peninsula: 1979 to 1996
several regions in the western Antarctic from October 1978 to August 1994, including the Long Term ... Radiometer (SMMR) from October 1978 to August 1987. Images were derived by NSIDC from data collected by ... , four periods of extensive ice cover are evident. The first period peaked in August 1980 and was more ... in August-September 1986; the ice did not fully retreat during the following summer and in 1987 ...
Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 65–73 : Autor(es): Hewitt, R
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An integrated stock assessment for the Patagonian toothfish (Dissostichus eleginoides) for the Heard and McDonald Islands using CASAL
appropriate, since SLOF could not be removed to an acceptable degree. The issues concerning the effect of the ... issues concerning the effect of the tension between survey data and mark–recapture data on parameter ... of issues that need to be addressed in toothfish assessments, notably the age-specific spatial ... groups with the main group, Survey Group 1, comprising surveys from 2001, 2002 and 2004 to 2007 ... population/fishery models. Year of release: 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 Number ...
Science Journal Paper : CCAMLR Science, Volume 15 (CCAMLR Science, Volume 15) : 1–34 : Autor(es): Candy, S.G and A.J. Constable
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A statistical method for estimating the level of IUU fishing: application to CCAMLR Subarea 48.3
040–23 361, 140–9 023 respectively for birds. Despite continuing high levels of FPV coverage from 2001 ... catches for the years 2001/02, 2002/03 and 2003/04. File: 07agnew-kirkwood.pdf ... 2001 to 2004, no further IUU activity has been detected, leading to estimates of zero fi sh and bird ... catches for the years 2001/02, 2002/03 and 2003/04. Résumé Ce document décrit une nouvelle méthode ... respectivement pour les oiseaux. Malgré les niveaux de couverture élevés des navires de surveillance de 2001 à ... poisson et d’oiseaux pour les années 2001/02, 2002/03 et 2003/04. Резюме В данной статье описывается ...
Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 119–141 : Autor(es): Agnew, D.J. and G.P. Kirkwood
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Antarctic krill and ecosystem management – from Seattle to Siena
over 500 000 tonnes in 1982 and a total of 6.1 million tonnes being taken between 1973 and 2001 ... ) embodied in the Convention. It necessitated consideration not only of sustainability issues, but also of ... de- velop ecosystem assessments as a means to obtain some indication of ‘ecosystem health’, taking ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 175–212 : Autor(es): Miller, D.G.M
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A review of the diet and at-sea distribution of penguins breeding within the CAMLR Convention Area (submitted to the 2008 Joint CCAMLR-IWC Workshop)
underestimates of density, although these issues can be overcome to some extent using distance sampling to ... success when compared to unencumbered control birds (Ballard et al., 2001; Hull, 1997; Ropert-Coudert ... et al., 2000b, 2007a, 2007b; Taylor et al., 2001). A number of technologies to study penguin ... oesophagus that detect drops in temperature when cold prey items are ingested (Charrassin et al., 2001 ...
Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 75–114 : Autor(es): Ratcliffe, N. and P. Trathan
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Spawning locations of mackerel icefish at South Georgia
CCAMLR Scierzce, Vol. 8 (2001): 107-118 SPAWNING ... examinees de nouvelles donnees issues des p6cheries commerciales et des campagnes de recherche. Les auteurs ... research cruises. During August 1983 a regular grid of 42 stations spaced at 30 n mile (55 km) intervals ... also from June to August. There was a sudden increase in numbers in March leading to a peak in May ...
Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 107–118 : Autor(es): Everson, I., A.W. North, A. Paul, R. Cooper, N.C. McWilliam and K.-H. Kock
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Interactions of Patagonian toothfish fisheries with killer and sperm whales in the Crozet Islands Exclusive Economic Zone: an assessment of depredation levels and insights on possible mitigation strategies
methods From 1 September 2003 to 31 August 2008, 4 289 lines were hauled by the seven legal long- liners ... season runs from 1 September to 31 August. Observer protocol The data were collected by fishery ... ) positions of the lines set by the seven legal longliners between 1 September 2003 and 31 August 2008 (the ... killer whales between 1 September 2003 and 31 August 2008. Longitude (East) 44.5 45.5 ...
Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 179–195 : Autor(es): Tixier, P., N. Gasco, G. Duhamel, M. Viviant, M. Authier and C. Guinet
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Comparison of two methods to assess fish losses due to depredation by killer whales and sperm whales on demersal longlines
conservation issues. However, estimating the amount of resource depredated can be especially challenging when ... addition to providing a methodology that could be used in other areas with depredation issues, these ... -economic, ecological and conservation issues. However, estimating the amount of resource depredated can be ... with depredation issues, these findings emphasise the critical importance for fishery managers and ... (negative and/or positive effects on depredating species) and conservation issues (impacts on depredated ... tested with a simple linear regression. Results From 1 September 2003 to 31 August 2013, 7 467 ...
Science Journal Paper : CCAMLR Science, Volume 22 (CCAMLR Science, Volume 22) : 1–14 : Autor(es): Gasco, N., P. Tixier, G. Duhamel and C. Guinet
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Identifying taxonomic groups vulnerable to bottom longline fishing gear in the Ross Sea region
of issues of taxonomic level, organism abundance, or local biodiversity as potential criteria for ... described by Rogers et al. (2008), but they neces- sarily still leave many implementation issues to RFMOs ... sponges (Brodeur, 2001; Heifetz, 2002; Husebø et al., 2002; Krieger and Wing, 2002; Buhl-Mortensen and ... , making them important factors in structuring community composition (Klitgaard, 1995; Beaulieu, 2001 ...
Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 105–127 : Autor(es): Parker, S.J. and D.A. Bowden