Resultados de la búsqueda
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Chinstrap penguins alter foraging and diving behaviour in response to krill size
have fluctuated in recent years. We therefore examined the diet of chinstrap penguins at Livingston ... daytime. The average annual size of krill was negatively correlated to the number of penguins foraging on ... fish, mean nighttime dive depths, and the proportion of foraging trips occurring overnight. Based on ... these patterns, we suggest that when krill were small, penguins foraged more on myctophid fish. The ...
Meeting Document : WG-EMM-07/11 : Autor(es): A.K. Miller and W.Z. Trivelpiece (USA)
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Global relationships amongst black-browed albatrosses: analysis of population structure using mtDNA and microsatellites
panmictic population. Microsatellite analyses on a larger number of samples using seven highly variable ... albatrosses. Differences in population structure between these two very similar and closely related species ... . melanophris, but would also suggest splitting T. melanophris into two groups: Falkland Islands, and Diego ...
Meeting Document : WG-FSA-01/19 : Autor(es): T.M. Burg and J.P. Croxall (United Kingdom)
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Contributions to the biology of cephalopods in Prydz Bay, Antarctica - a preliminary report
Abstract: The Australian Antarctic Division carried out an extensive sampling program for pelagic ... 341 cephalopod specimens comprising 256 squids and 85 octopods were captured for study. This ... senei and several species of Pareledone. Psychroteuthis glacialis is reported to congregate on the ... was found for any of the species captured. Evidence suggests the existence of ontogenetic descent in ...
Meeting Document : SC-CAMLR-X/BG/09 : Autor(es): Delegation of Australia
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The ICES Benchmark Protocol
benchmark is agreement on an assessment methodology that is to be applied in annual update assessments, for ... Abstract: The ICES Benchmark Protocol is a review process for evaluating the data and analyses ... that form the basis of ICES management advice for a stock. The review examines stock structure, fishery ...
Meeting Document : WG-SAM-14/16 : Autor(es): C. Darby (United Kingdom)
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Review of research into seabird–fishery interactions
research plans for managing seabird mortalities and the effect of these on seabird population viability in ... and modelling; c) foraging studies; d) molecular research; and e) management efficacy. Research on ... allow an assessment of the utility, current methodologies, and constraints of research into seabird ...
Meeting Document : WG-FSA-05/42 : Autor(es): R. Alderman (New Zealand)
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Reduced bait loss and bycatch of seabirds in longlining by using a seabird scarer
behind the vessel during setting of the gear, proved to be an effective device for scaring the birds away ... , bycatch of seabirds on longlines is a problem in certain seasons and areas. Birds feeding on the bait ...
Meeting Document : WG-IMALF-94/09 : Autor(es): S. Løkkeborg and Å. Bjordal (Norway)
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Designation of Marine Protected Areas in Antarctic Waters
Abstract: Over the last few years, the designation of Marine Protected Areas (MPA) in Antarctica ... CCAMLR Working Group on Ecosystem Monitoring (WG-EMM-12); it has been the subject of voluminous documents ...
Meeting Document : CCAMLR-XXXIV/BG/29 : Autor(es): Delegation of the Russian Federation
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A proposal to revise the limitation of Macrourus by-catch in new and exploratory fisheries
Abstract: A new move-on rule was introduced in Conservation Measure 33-03 at CCAMLR-XXIV ... regarding the by-catch limit of new and exploratory fisheries. This move-on rule requires fishing to cease ... two 10-day periods in a single SSRU (CM 33-03 paragraph 5). The interval of the “10-day period” was ...
Meeting Document : SC-CAMLR-XXVI/08 : Autor(es): Delegation of Japan
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ANTARCTIC PENINSULA DECADAL WINTER TEMPERATURE ANOMALIES AND ANTARCTIC KRILL VARIABILITY IN THE SOUTH ATLANTIC REGION: PRELIMINARY RESULTS
the oscillations with 3-8 year periods and a decadal oscillation with a period of about 16 years ... Abstract: The influence of the climate change on krill based Southern Ocean ecosystem is studied ... temperature (READER data) were used. Decadal variability of winter temperature on the regional scale was ... . Preliminary analysis of Antarctic krill density variations shows about 8-year variability as well. Correlation ...
Meeting Document : WG-EMM-11/41 : Autor(es): G.P. Milinevsky, A.V. Grytsai and L.K. Pshenichnov (Ukraine)
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Penguin demography and winter distributions in the Antarctic Peninsula region
penguins. Long-term data acquired on these species including: survival and recruitment, population size and ... physical processes to their effects on dependent predators in the Southern Ocean. Our most recent results ... Peninsula region have increased 4-5°C over the last 50 years (Smith et al. 1996, 1999), affecting the ...
Meeting Document : WG-EMM-01/32 : Autor(es): W. Trivelpiece and S. Trivelpiece (USA)