Search results
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Effects of weather and sea-ice on the reproductive performance of the Adélie penguin at Edmonson Point, Ross Sea
adeliae) was studied at Edmonson Point, Victoria Land, during the 1999, 2001 and 2003 breeding seasons ... significantly longer than in 1999 and 2001, which in turn delayed the mean departure date of males on the second ... recorded in 1999 and 2001. The average weight of adults rearing chicks was lower in 2003. It is suggested ... Point, Victoria Land, during the 1999, 2001 and 2003 breeding seasons. Weather and sea-ice regimes ... 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 ... Edmonson, en Terre Victoria, pendant les saisons de reproduction de 1999, 2001 et 2003. Les conditions ...
Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 99–109 : Author(s): Olmastroni, S., F. Pezzo, V. Volpi and S. Focardi
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Status of the FIBEX acoustic data from the West Atlantic
clearly unambiguous. Material archived at the BIOMASS Data Centre was used extensively in order ... in archived material from Anon. (1986) and presented in Trathan et al. (1992), Appendix 1. A frequency ... Greene e t a l . (1990) must be considered with some caution. This warning is based upon reservations ... of krill Euphausia superba. Memoirs of National Institute of Polar Research, Special Issue 27: 153-164 ...
Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 35–48 : Author(s): Trathan, P.N. and I. Everson
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The sensitivity of multiple output statistics to input parameters in a krill–predator–fishery ecosystem dynamics model
by McLeod and Leslie (2009): ecosystem productivity, health, resilience and services. These objectives ... performance (services) and two (health and resilience) for each of 33 SSMU- and taxon- specific predator ... abundance at beginning of fishing period. Krill Whole model Health (II.3(b) maintenance ... was proportional to the biomass of krill, calculated within the model. (iii) Each taxon-specific health ...
Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 97–118 : Author(s): Hill, S.L. and J. Matthews
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A potential feedback approach to ecosystem-based management: Model Predictive Control of the Antarctic krill fishery
; to illustrate the elements of feed- back control strategies, and the issues that must be addressed ... on the simplified formulation of Constable’s (2001) multi-species model in Hill et al. (2006). It is modified ... the equations of Constable (2001), and harvesting and movement are represented with additive loss or gain ... - ables in each area (Constable, 2001): ( )2, ~ , ii k i KKK σ . (4) The sequences of random variables ...
Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 119–137 : Author(s): Hill, S.L. and M. Cannon
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The ecosystem approach to managing fisheries: achieving conservation objectives for predators of fished species
CCAMLR Scier~ce, Vol . 8 (2001): 37-64 THE ECOSYSTEM ... . An important issue to be considered is whether ecosystem objectives can be met without kilowii~g, in detail ... and Switzer (1948). An important issue to resolve is how to manage the effects of fishing 011 predators when ... could be considered for achieving the conservation objectives? These questions address a core issue ...
Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 37–64 : Author(s): Constable, A.J
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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)
, although these issues can be overcome to some extent using distance sampling to account for decreasing ... (Ballard et al., 2001; Hull, 1997; Ropert-Coudert et al., 2000b, 2007a, 2007b; Taylor et al., 2001 ... ). These are archival tags that need to be recovered in order to download the data. Algorithms estimate the time ... drops in temperature when cold prey items are ingested (Charrassin et al., 2001; Pütz et al., 1998 ...
Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 75–114 : Author(s): Ratcliffe, N. and P. Trathan
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Sea-surface temperature and krill catches around South Georgia in December–February 1989–1991 and 1999–2001
1989–1991 and 1999–2001 Abstract / Description: Monitoring of sea-surface temperatures (SSTs ... to 39 766 tonnes in 2000/01. The SST maps for 1999–2001 showed a prominent advection of Weddell Sea ... and 1999–2001 ... to 39 766 tonnes in 2000/01. The SST maps for 1999–2001 showed a prominent advection of Weddell ... –FEBRUARY 1989–1991 AND 1999–2001 G.P. Vanyushin VNIRO, 17a V. Krasnoselskaya Moscow 107140, Russia Email ... . However, it dropped to 39 766 tonnes in 2000/01. The SST maps for 1999–2001 showed a prominent ... est tombée à 39 766 tonnes en SHORT NOTE Vanyushin 166 2000/01. Les cartes de SST de 1999–2001 ... г. Карты ТПМ за 1999–2001 гг. показывают заметную адвекцию вод моря Уэдделла к северо-западу от Южной ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 165–174 : Author(s): Vanyushin, G.P
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Fitting Euphausia superba into Southern Ocean food-web models: a review of data sources and their limitations
in, or transiting, these deep waters to or from the seabed. The issue of undersampled krill has fundamen- tal ... been reviewed by Watkins (2000). They identified issues such as accuracy of estimates of krill ... been a controversial issue because of the potential for net mesh selection and avoid- ance of the net ... to specific species, and then to scale it to provide a biomass estimate. This is a technical issue ...
Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 219–245 : Author(s): A. Atkinson, S. Nicol, S. Kawaguchi, E. Pakhomov, L. Quetin, R. Ross, S. Hill, C. Reiss, V. Siegel, G. Tarling (submitted to the 2008 Joint CCAMLR-IWC Workshop)
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Comparison of two methods to assess fish losses due to depredation by killer whales and sperm whales on demersal longlines
and conservation issues. However, estimating the amount of resource depredated can be especially challenging when ... a methodology that could be used in other areas with depredation issues, these findings emphasise the critical ... a combination of socio-economic, ecological and conservation issues. However, estimating the amount of resource ... in other areas with depredation issues, these findings emphasise the critical importance for fishery ... -economic, ecological and conservation issues. However, estimating the amount of resource depredated can ... with depredation issues, these findings emphasise the critical importance for fishery managers and researchers ... and/or positive effects on depredating species) and conservation issues (impacts on depredated resources ... 2003 to 31 August 2013, 7 467 longline sets were hauled by the seven longliners operating ...
Science Journal Paper : CCAMLR Science, Volume 22 (CCAMLR Science, Volume 22) : 1–14 : Author(s): Gasco, N., P. Tixier, G. Duhamel and C. Guinet
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Antarctic krill and ecosystem management – from Seattle to Siena
000 tonnes in 1982 and a total of 6.1 million tonnes being taken between 1973 and 2001 (Figure ... in the Convention. It necessitated consideration not only of sustainability issues, but also of ecosystem ... be taken into account implicitly in the estimation of krill M in any event. To address the issue, WG ... to include the fi shery (Figure 6). As emphasised by Everson (2002 – this volume), the issue is one ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 175–212 : Author(s): Miller, D.G.M