Resultados de la búsqueda
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CHINSTRAP PENGUINS: MISUNDERSTOOD AND VULNERABLE MONITORS OF ECOSYSTEM CHANGES IN THE SCOTIA SEA REGION OF ANTARCTICA
, 30 years of field studies in the WAP, coupled with more regional surveys throughout the Scotia Sea ... (Euphausia superba) in the SS region. Linking trends in penguin abundance with trends in krill biomass can ...
Meeting Document : WG-EMM-09/17 : Autor(es): W.Z. Trivelpice, J.T. Hinke, A.K. Miller, C. Reiss, S.G. Trivelpiece and G.M. Watters (USA)
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Marine debris collected at Cape Shirreff, Livingston Island, during the Antarctic season 1993/94
Arctocephalus gazella, and with the purpose of having a baseline zero for further studies using the guidelines ... store the greatest part of marine debris got together during several years from different areas of the ... composed by 1.754 objects collected from 36 beaches, with a total of 284.29 kg. As in previous studies on ...
Meeting Document : CCAMLR-XIII/BG/17 : Autor(es): Delegation of Chile
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A proposal for a research plan for the exploratory longline fishery for Dissostichus spp. in 2013/14 in Division 58.4.3a
to participate in this exploratory fishery over the next three years in order to achieve a robust ... assessment of the stock in 2012 has been retained and updated with a small number of changes to try to ... %. Sustainable yield, calculated in accordance with the CCAMLR decision rules is around 70 tonnes for ...
Meeting Document : WG-FSA-13/04 : Autor(es): A. Rélot-Stirnemann - Submitted on behalf of France
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Acoustic and catch data collected by the fleet – relevance for feedback management
coherent from year to year during the recent 6 years with some moderate variations, as also is the effort ... over the day and night and during the seasons. Diel migration, with krill being distributed close to ... obvious trend indicating declining krill density until May in the study year. Author(s): O.R. Godø, T ...
Meeting Document : WG-EMM-15/13 : Autor(es): O.R. Godø, T. Klevjer and G. Skaret (Norway)
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Updated status of Notothenia rossii, Gobionotothen gibberifrons and Notothenia coriiceps in inshore sites of the South Shetland Islands: results of a long-term monitoring program (1983–2016) at Potter Cove
consistent with those achieved from the most recent offshore bottom trawl research cruises in 2007 and 2012 ... decline in G. gibberifrons recruitment evidenced by the low proportions of juvenile fish; and 3) a high ... abundance of N. coriiceps. Results were also consistent with trends in seabirds that feed on juveniles of ... , to achieve a 33-year record, 1983-2016, to monitor changes in the prevalence of three species of ...
Meeting Document : WG-FSA-16/02 : Autor(es): E. Barrera-Oro, E. Marschoff and D. Ainley
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Glider-based estimates of Antarctic krill in Bransfield Strait, and the West shelf off Livingston Island, Antarctica
Research), equipped with a suite of oceanographic sensors (CTD, fluorometers, and oxygen) and a three ... from 350 glider profiles was 25.0 g m-2, compared with the mean biomass density of 28 g m-2 collected ... over 13 years of ship surveys. On the west shelf of Livingston Island, glider-based biomass densities ... the area of ship surveys to overlap with the area surveyed by the glider was 79 g m-2. Mean biomass ...
Meeting Document : WG-EMM-2019/13 : Autor(es): C. Reiss, A. Cossio, G. Cutter, J. Walsh and G. Watters
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Antarctic fur seal (Arctocephalus gazella) pup growth rates obtained at Cape Shirreff, Livingston Island, South Shetlands: 1994/95 to 1997/98 (CEMP Index C2, Procedure B)
followed by females, which appear to have no relation with sea-ice variation. Four years of data is ... ). For comparison purposes we contrasted our data with values reported for Bird Island, South Georgia ... (1973-1987). From this comparison, Cape Shirreff's male pups resulted to have a faster growth with ... Shirreff's male pups grow faster in order to undergo with better body conditions higher latitude ...
Meeting Document : WS-AREA 48-98/18 Rev. 1 : Autor(es): R. Hucke-Gaete, V. Vallejos and D. Torres (Chile)
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Analisis de los censos de Arctocephalus gazella efectuados en el sitio de especial interes cientifico no. 32, Isla Livingston, Antarctica
with the purpose to clarify its population size, between the Antarctic seasons 1965-66 and 1991-92. The ... results show that the population size of this species, in the study area increased during 26 years, form ...
Meeting Document : WG-CEMP-93/24 : Autor(es): A. Aquayo L. and D. Torres N. (Chile)
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Fish by-catch in the krill fishery: 2018 update
the commercial krill fishery catch data. As in previous years there was a high degree of overlap in ... the most frequently reported taxa in the C1 data and SISO data, with Lepidonothen larseni the most ...
Meeting Document : WG-FSA-18/10 : Autor(es): CCAMLR Secretariat
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Long term movements and activity patterns of an Antarctic marine apex predator: the leopard seal
changed throughout the year with the highest values occurring during the summer which has implications for ... including one individual in two separate years. Whilst the sample size is small the results represent an ... 22 and 31% of the time with maximum of 74 hours and a median of between 9 and 11 hours. The longest ... behaviour within, areas important to breeding populations of birds and other seals, coupled with the ...
Meeting Document : WG-EMM-18/P09 : Autor(es): I.J. Staniland, N. Ratcliffe, P.N. Trathan and J. Forcada