Resultados de la búsqueda
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Feeding and food intake of Electrona carlsbergi (Tåning) (Myctophidae)
Abstract: In the summer-autumn period E. carlsbergi fed mainly on copepods. Daily food intake ... measured using various methods ranged from 3.7 to 5.6 % of fish body weight. The amount of food consumed by ... E. carlsbergi during the year in the southern regions of the Antarctic Convergence is about 15 times ...
Meeting Document : WG-FSA-90/18 : Autor(es): O.V. Gerasimova (USSR)
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Milk fatty acid signatures indicate both major and minor shifts in foraging ecology of lactating Antarctic fur seals
Abstract: Fatty acid signature analysis is based on the conservation and unique signatures of ... fatty acids in the marine food chain and it may be useful in determining the composition of seal diets ... Antarctic fur seals at South Georgia during the perinatal period (n= 19) and subsequently during early (n=11 ... year (austral summer 1990/1991). In lactating otariid females, milk fatty acids secreted during the ...
Meeting Document : WG-EMM-97/14 : Autor(es): Boyd, I.L., Iverson, S.J., Arnould, J.P.Y.
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Adélie penguin colony size predicts south polar skua abundance on Ross Island, Antarctica
other ecosystem drivers. In the Ross Sea region, most south polar skuas (Catharacta maccormicki) nest ... areas of varying size within the three main Ross Island colonies. We considered skua populations in ice ... . Many historical paired estimates of skua numbers and penguin colony sizes in the Ross Sea fell below ... this regression line. We probably overestimated skua numbers at some colonies by overestimating the ...
Meeting Document : WG-EMM-14/55 : Autor(es): D.J. Wilson, P.O’B. Lyver (New Zealand), A.L. Whitehead (Australia), T.C. Greene (New Zealand), K. Dugger (USA), B.J. Karl, J.R.F. Barringer, R. McGarry (New Zealand), A.M. Pollard and D.G. Ainley (USA)
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CCAMLR Science: an update and suggested changes to document handling/submission
Abstract: An update on the citation ranking of CCAMLR Science and the online publication ... developments are provided. The Working Group is invited to comment on the procedures for citing and public ... access to working group documents and the process of document submission to working groups. All authors ...
Meeting Document : WG-EMM-10/13 : Autor(es): Secretariat
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A RISK MANAGEMENT FRAMEWORK FOR AVOIDING SIGNIFICANT ADVERSE IMPACTS OF BOTTOM FISHING GEAR ON VULNERABLE MARINE ECOSYSTEMS
adverse impacts of bottom fishing gear on Vulnerable Marine Ecosystems (VMEs) are avoided. Due to the high ... levels of uncertainty surrounding both the evidence of VME presence and the consequences of interaction ... used successfully by IMAF to minimise the effects of longline fishing mortality on seabirds. The aim of ... . The framework consists of four steps: (1). Risk analysis of current and proposed fishing activities ...
Meeting Document : WG-FSA-08/64 : Autor(es): K. Martin-Smith (Australia)
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Demographic effects of extreme weather events: snow storms, breeding success, and population growth rate in a long-lived Antarctic seabird
are poorly understood because they are, by definition, rare events. If the frequency and severity of ... extreme weather events increase, there is an urgent need to understand and predict the ecological ... consequences of such events. In this study, we aimed to quantify the effects of snow storms on nest survival in ... heavy snow storms, and long term data on petrel productivity (i.e., number of chicks pro- duced) at the ...
Meeting Document : WG-EMM-16/P13 : Autor(es): S. Descamps, A. Tarroux, Ø. Varpe, N.G. Yoccoz, T. Tveraa and S.-H. Lorentsen
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POTENTIAL PHENOLOGICAL RESPONSES TO ENVIRONMENTAL VARIABILITY AND CHANGE FOR ADÉLIE PENGUINS
environmental change and have been reported for a range of species around the globe. In Antarctica, there is a ... clear indication of phenological changes for the Adélie penguin (Pygoscelis adeliae) with contrasting ... species food supply. Here we outline the underlying factors which can affect the timing of various ... phenophases of the breeding cycle and describe shifts in Adélie penguin breeding phenology reported at ...
Meeting Document : WG-EMM-11/33 : Autor(es): L. Emmerson and C. Southwell (Australia)
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Some idea of numerical model for assessment of Euphausia superba biomass
(developed by Dr. Yamanaka of Center of Climate System Research, University of Tokyo) of the three ... dimensional primitive equation for the ocean circulation developed originally at the GFDL, Princeton, NJ, (2 ... )calculation of spatial distributiion of Euphausia superba. Our model will be capable of calculating the ... detailed spatial distribution of Euphausia superba by dividing the Antarctic Ocean into many grid points ...
Meeting Document : WG-KRILL-93/19 : Autor(es): M.J. Kishi and M. Naganobu (Japan)
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Drawing on international experience to improve performance of CCAMLR tagging programs
Abstract: Mark-recapture methodologies are commonly used to inform the management of fisheries ... drawing on the experience tagging programmes internationally. To the extent that CCAMLR tagging programmes ... presented. The paper focusses on the design and implementation of toothfish tagging programmes, but many of ... the potential issues apply equally to other tagged species such as skates. Author(s): S. Parker and S ...
Meeting Document : WG-SAM-12/26 : Autor(es): S. Parker and S. Mormede (New Zealand)
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A by-catch guide for commonly caught species in CCAMLR longline and trawl fisheries
Abstract: As requested by members at WG-FSA 15, the Secretariat has collated existing materials ... fisheries. The guide consists of comprehensive descriptions for 21 species, and two additional appendices ... caught in the CCAMLR krill fishery. The Secretariat thanks members for access to materials, and for ... reviewing the draft version of this guide. Additionally, images in this guide have been provided for the ...
Meeting Document : WG-FSA-16/17 : Autor(es): CCAMLR Secretariat