Search results
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Conflict or co-existence? Foraging distribution and competition for prey between Adélie and chinstrap penguins
and ecologically very similar, have very similar diet and breed sympatrically in the Scotia Arc from ... penguins and 24 chinstrap penguins were used to compare foraging distributions. In both years the diet of ... both species was exclusively Antarctic krill (Euphausia superba) of the same size range. In a year of ... between the two species, however, in a year of normal resource availability (2001) there was no such ...
Meeting Document : WG-EMM-02/15 : Author(s): A.S. Lynnes, K. Reid, J.P. Croxall and P.N. Trathan (United Kingdom)
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Marine debris surveys at Bird Island, South Georgia 1990 to 1995
reduce entanglement of marine mammals and birds. Overall, and in all but one year, the highest incidence ... category overall (76 %), and in all samples since 1991, was pieces of synthetic lone as used in the ... %) and polythene bags (6 %) were the next commonest items. There was a substantial increase in the number ... of items found ashore in 1995 which coincided with an apparent increase in long-line fishing effort ...
Meeting Document : CCAMLR-XV/BG/05 : Author(s): Delegation of the United Kingdom
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Monitoring krill population variability using seabirds and seals at South Georgia – new samplers provide new insights
Abstract: Variability in the Southern Ocean is often characterised by fluctuations in the ... South Georgia interannual variability in the krill-based marine ecosystem has historically been most ... frequently detected in the response of upper-trophic level predators. Analysis of the changes in the ... population size structure of krill in the diet of Antarctic fur seals Arctocephalus gazella, particularly ...
Meeting Document : WG-EMM-04/63 : Author(s): K. Reid, E.J. Murphy, J.P. Croxall and P.N. Trathan (United Kingdom)
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Scientific background to the proposed East Antarctica Representative System of Marine Protected Areas
Abstract: Rev. 1 Note: This revision corrects minor transcription errors in Table 1. These ... transcription errors were in relation to BANZARE Bank inside the Planning Domain. No changes to the text have ... Commission achieving the objectives of CCAMLR in Article II, in both conservation and in science relevant to ... since the first MPA workshop in 2005. This paper shows how the EARSMPA is designed to: efficiently ...
Meeting Document : SC-CAMLR-IM-I/10 Rev. 1 : Author(s): Delegations of Australia, France and the European Union
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Review of the 2007 budget, draft 2008 budget and forecast budget for 2009
. The presentation is in the format determined by the Commission at its 2002 Meeting. The expenditure ... surplus includes an unbudgeted, half-year New Member Contribution of A$53 312 in respect of the People’s ... Republic of China, which applied to become a member of the Commission in July 2007. General Services Staff ... salary increases in 2007 amounted to 6.5%, but part of this is offset by an increase in the Staff ...
Meeting Document : CCAMLR-XXVI/04 : Author(s): Executive Secretary
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A three-frequency method to determine the abundance and the size of two euphausiid species (Euphausia superba and Euphausia crystallorophias)
role in the Ross Sea pelagic ecosystem (Marr, 1962; Azzali et al., 1999). To estimate the abundance of ... obtain information about the mean size (length) of the organisms in each aggregation. In principle the ... , and directly from net samplings. The mean size of the crustaceans can be estimated from “in situ ... catches. Unfortunately the precision and credibility of this method are often insufficient when applied in ...
Meeting Document : WG-EMM-01/63 : Author(s): M. Azzali, J. Kalinowksi, G. Lanciani and I. Leonori (Italy)
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The biology of the spiny icefish (Chaenodraco wilsoni Regan, 1914)
Abstract: The most abundant icefish species observed in catches off the northern tip of the ... Antarctic Peninsula in the last 25- 30 years has been the spiny icefish Chaenodraco wilsoni Regan 1914. C ... Joinville – D’Urville Islands (CCAMLR Statistical Subarea 48.1) and in the Cosmonauts and Cooperation Seas ... and Prydz Bay in the Indian Ocean sector (CCAMLR Statistical Division 58.4.2). This paper presents new ...
Meeting Document : WG-FSA-07/P1 : Author(s): K.-H. Kock, L.V. Pshenichnov, C.D. Jones, J. Gröger and R. Riehl. (Polar Biol., 31 (3): 381–393 (2007))
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Seabird research at Cape Shirreff, Livingston Island, Antarctica, 2003–2004
examine trends in penguin populations, as well as inter-annual variation in reproductive parameters ... decline over the past five years, and is at its lowest size in the past seven years of study. While the ... gentoo breeding population increased slightly from last year, it is at its second lowest size in the past ... seven years. Chinstrap fledging success was higher during the 2003-04 breeding season than in the ...
Meeting Document : WG-EMM-04/5 : Author(s): M. Antolos, A.K. Miller and W.Z. Trivelpiece (USA)
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Krill population dynamics at South Georgia 1991–1997, based on data from predators and nets
scientific nets from the same area over the summers of 1991-1997. In comparing the 5 years with both predator ... samples from Antarctic fur seal and macaroni penguin combined; least temporal variation occurs in predator ... in 1991 and 1994, both years of low krill biomass at South Georgia. In both of these years large ... of the March krill population showed a regular increase from 1991 to 1993, fell to a minimum in 1994 ...
Meeting Document : WS-AREA 48-98/15 : Author(s): K. Reid, J. Watkins, J. Croxall and E. Murphy (UK)
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Antarctic's pelagic ecosystem: how environmental change will affect Salpidae population structure
Abstract: Dynamic climate changes have become noticeable in recent decades, especially in the ... - Euphausia superba. Presumably as a result of climatic fluctuations, a decrease in the numbers of this ... crustacean has been recorded, followed by an increase in the population of the gelatinous zooplankter Salpa ... thompsoni. In the inquiry herein presented, population and morphometric analyses on Salpa thompsoni have ...
Meeting Document : WG-EMM-15/P08 : Author(s): A.W. Słomska, A.A. Panasiuk-Chodnicka, M.I. Żmijewska and M.K. Mańko (Poland)