Resultados de la búsqueda
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A preliminary survey on breeding population of Adélie penguins at Cape Hallett in the Ross Sea region, Antarctica
aerial images using an unmanned aerial vehicle (UAV). The Cape Hallett colony was composed of ... Approved Delegation responsibility for releasing documents: Korea, Republic of ...
Meeting Document : WG-EMM-17/06 : Autor(es): J.-H. Kim, H. Chung, W.Y. Lee, J.-W. Jung, M.C. Park, H.C. Shin and J.H. Kim
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Dietary studies of Adélie penguins through faecal DNA analysis
DNA from penguin faecal samples as an alternative, non-invasive procedure. We describe the technique ... Approved Delegation responsibility for releasing documents: Australia ...
Meeting Document : WG-EMM-17/13 : Autor(es): L. Emmerson, B. Deagle, C. Waluda, M. Dunn, P. Trathan and C. Southwell
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Preliminary assessment of the South Georgia ray populations
accuracy and duration of CPUE data and the results of an ongoing mark-recapture experiment for rays at ... implemented in a Bayesian framework. Catch and CPUE data were reconstructed for the time series 1985 – 2006 ...
Meeting Document : WG-SAM-07/11 : Autor(es): D.J. Agnew, R. Mitchell, T. Carruthers, J. Roberts, R. Hillary and J. Pearce (United Kingdom)
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Comparisons in prey distribution between inshore and offshore foraging areas of chinstrap penguins and Antarctic fur seals at Seal Island
Abstract: At Seal Island breeding predators which incorporated an overnight period into their ... advantages are considered for visual predators to feed in the slope/offshore region at night:(l) krill showed ... ; their ventral light organs may become easier target for predators at night. Thus, aggregation pattern of ...
Meeting Document : WG-EMM-96/49 : Autor(es): Ichii, T., Bengtson, J.L., Boveng, P., Cameron, M.F., Naganobu, M., Meyer, W.R., Hiruki, L.M., Takao, T., Jansen, J.K., Kawaguchi, S.
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Using effective sample sizes to evaluate the efficiency of length samples collected by at-sea observers in the krill fishery in Subarea 48.1
Abstract: Catch at length is an important input into any stock assessment. Consequently ... characterise how many krill are measured by observers, and for how many hauls. We then simulate the impact of ... Approval: Approved Secretariat Workflow Status: Content Approved Delegation responsibility for releasing ...
Meeting Document : WG-SAM-16/39 : Autor(es): N. Kelly, S. Kawaguchi, P. Ziegler and D. Welsford
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OCEANIC CIRCUMPOLAR HABITATS OF ANTARCTIC KRILL
evidence for a compensating southwards migration, with an increasing proportion of krill found south of the ... view that krill require high food concentrations, with a distribution often linked to shelves. For a ... responsibility for releasing documents: CCAMLR Secretariat ...
Meeting Document : WG-EMM-08/P04 - Abstract : Autor(es): A. Atkinson, V. Siegel, E. A. Pakhomov, P. Rothery, V. Loeb, R.M. Ross, L.B. Quetin, K. Schmidt, P. Fretwell, E.J. Murphy, G.A. Tarling and A.H. Fleming
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Broadbandwidth total target strength measurements of Antarctic krill (Euphausia superba) from reverberation in a cavity
, Antarctica, and aboard R/V Yuzhmorgeologiya. Chirp pulses were sequentially transmitted with an ... accuracy was determined using standard metal spheres for references [Demer et al., in-press, J. Acoust. Soc ... ): 1273-1294], which has been enhanced to account for the stochastic nature of sound scattering (SDWBA ... ). This study improves upon methods for acoustical identification and target strength estimation for ...
Meeting Document : WG-EMM-02/49 : Autor(es): D.A. Demer and S. G. Conti (USA)
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A RE-APPRAISAL OF THE TOTAL BIOMASS AND ANNUAL PRODUCTION OF ANTARCTIC KRILL
of relative krill density around Antarctica with the most recent, acoustics-derived, value for the ... throughput for a species of this size. The similarity between the three production estimates reflects a broad ... agreement between the three growth models used, plus the fact that, for a given population size, production ... system and what is required to support an estimated predator consumption of 128-470 Mt y-1. Given the ...
Meeting Document : WG-EMM-08/17 : Autor(es): A. Atkinson (United Kingdom), V. Siegel (Germany), E.A. Pakhomov (South Africa), M.J. Jessopp (United Kingdom) and V. Loeb (USA)
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Foraging patterns in the Antarctic shag (Phalacrocorax bransfieldensis) at Harmony Point, Antarctica
reduce the extension of the foraging trips which in years of scarce food availability may no result in ...
Meeting Document : WG-EMM-04/22 : Autor(es): R. Casaux and A. Baroni (Argentina)
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Interannual variability of the South Georgia marine ecosystem: biological and physical sources of variation in the abundance of krill
. There is now extensive evidence that there are years when there is a very low abundance of Antarctic ... . Fluctuations in year class success in parts, or all, of the population across the Scotia Sea, can generate ...
Meeting Document : WS-AREA 48-98/8 : Autor(es): E.J. Murphy, J.L. Watkins, K. Reid, P.N. Trathan, I. Everson, J.P. Croxall, J. Priddle, M.A. Brandon, A.S. Brierley (UK) and E. Hofman (USA)