Resultados de la búsqueda
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Winter distribution of chinstrap penguins from two breeding sites in the South Shetland Islands of Antarctica
on King George Island (620 10’ S, 580 27’ W) were instrumented with satellite tags following their ... that 4 of the birds instrumented in the 2000 winter, two from each colony, foraged largely on the shelf ... geostrophic velocities, suggest that the chinstrap penguins used markedly different winter foraging habitats ... migrating eastward. Both of these penguins followed the Scotia Arc with the chinstrap penguin tagged in 2004 ...
Meeting Document : WG-EMM-06/17 : Autor(es): W.Z. Trivelpiece, S. Buckelew, C. Reiss and S.G. Trivelpiece (USA)
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Abundance and trends of Type B killer whales (Orcinus orca) around the western Antarctic Peninsula
B killer whales: a larger mammal-eating form (B1) that apparently specializes on hunting ice seals ... on pack ice floes, and a smaller, more gregarious form (B2) that has been observed to feed on ... summer, with periodic long-distance migrations to sub-tropical waters (up to 4151 km from tagging site ... temporary emigration from the study area indicated that B1s were stable in abundance, ranging from 39 to 53 ...
Meeting Document : WG-EMM-18/16 : Autor(es): H. Fearnbach, J.W. Durban, D.K. Ellifrit and R.L. Pitman
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The use of predator-derived krill length-frequency distributions to calculate krill target strength
directly with automated on board data collection systems it will be possible to gain important estimates of ... operations. This will allow a robust estimate of krill abundance to be estimated from acoustic data. Changes ...
Meeting Document : WG-EMM-00/42 : Autor(es): K. Reid and A.S. Brierley (United Kingdom)
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Admiralty Bay (South Shetland Islands) as a model area for the long-term marine monitoring program – reasons and opportunities
numerous scientific, data archives, to compare biological, chemical and geological data with other ... ). Admiralty Bay is an ideal and unique area to examine actual and further potential changes, and can be a ... model and possible indicator for the whole region. It would be a unique, comprehensive approach to these ...
Meeting Document : WG-EMM-14/59 : Autor(es): A. Panasiuk-Chodnicka, M. Korczak-Abshire, M.I. Żmijewska, K. Chwedorzewska, E. Szymczak, D. Burska, D. Pryputniewicz-Flis and K. Łukawska-Matuszewska (Poland)
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Krill of the Ross Sea: distribution, abundance and demography of Euphausia superba and Euphausia crystallorophias during the Italian Antarctic expedition (January–February 2000)
, in the area north of Continental Shelf, was 9.3 g/1000m3 of filtered water with a mean density of ... dominance in the High Antarctic Zone (south of 74°), with a mean relative biomass of 3.0 g/1000m3 and mean ... density of 19.1 ind/1000m3. The present data have demonstrated that in the Ross Sea during the summer ... period, the two species of euphausiid inhabited different areas. Oceanographic data indicate that both ...
Meeting Document : WG-EMM-02/32 Text : Autor(es): A. Sala, M. Azzali and A. Russo (Italy)
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Apparent decrease of Weddell seal numbers in the western Ross Sea
Abstract: Ground counts during 1959-1968 compared with counts using high resolution satellite ... Sea ecosystem that would have negatively affected seals has been the large-scale removal of large ... . Coincident with the fishery, lower numbers and size of toothfish have been reported in McMurdo Sound and data ... -scale seal monitoring program is required to prove that the fishery is not involved. Author(s): D.G ...
Meeting Document : WG-EMM-14/44 : Autor(es): D.G. Ainley, M.A. Larue (USA), I. Stirling (Canada), S. Stammerjohn and D.B. Siniff (USA)
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Identification of Pleuragramma antarctica larvae in the Ross Sea via mitochondrial DNA
as P. antarctica. Consistent with the previous report, D-Loop sequences also demonstrated that ... in a fraction of samples. Sequences were aligned with known GenBank sequences for P. antarctica and ... P. antarctica that depart from expectation Author(s): J.A. Caccavo (Italy), C. Brooks (USA), L ...
Meeting Document : WG-FSA-15/61 : Autor(es): J.A. Caccavo (Italy), C. Brooks (USA), L. Zane (Italy) and J.R. Ashford (USA)
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The random stratified trawl survey to estimate the abundance of Dissostichus eleginoides and Champsocephalus gunnari in the waters surrounding Heard Island (Division 58.5.2) for 2017
April, with the completion of 163 stations. The survey has been conducted on the FV Atlas Cove since ... surveys, but with a new set of randomly selected station points. The unstratified density of Dissostichus ... eleginoides (Patagonian toothfish) was 1.5 times greater than that of 2016 and also of the long-term average ... slightly larger than that of 2016 and 2.5 times the average. For the managed by-catch species, unstratified ...
Meeting Document : WG-FSA-17/14 Rev. 1 : Autor(es): G.B. Nowara, T.D. Lamb and P. Ziegler
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CEMP data summary and updated analysis of CEMP data from Subarea 48.
in accordance with the ‘ecosystem approach’. This report provides: Details on CEMP data that have ... been submitted for 2016/17, including an area-based comparison of the 2016/17 observations with the ... previous season A summary of available CEMP data and metadata and any issues encountered with data ...
Meeting Document : WG-EMM-17/17 : Autor(es): CCAMLR Secretariat
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AFMA Research Fund – Final Report. Performance assessment and peformans improvement of two underwater line setting devices for avoidance of seabird interactions in pelagic longline fisheries
Author(s): N. Brothers, D. Chaffey and T. Reid (Australia) Title: AFMA Research Fund – Final ...
Meeting Document : WG-FSA-01/80 : Autor(es): N. Brothers, D. Chaffey and T. Reid (Australia)