Resultados de la búsqueda
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POPULATION ASSESSMENTS OF GENTOO PENGUINS (PYGOSCELIS PAPUA) BREEDING AT AN IMPORTANT ANTARCTIC TOURIST SITE, GOUDIER ISLAND, PORT LOCKROY, PALMER ARCHIPELAGO, ANTARCTICA
Peninsula; it is one of the most frequently visited tourist sites in Antarctica. A number of gentoo penguin ... Abstract: Goudier Island is located in the Palmer Archipelago, to the west of the Antarctic ... (Pygoscelis papua) breeding colonies are located on the island and these have been the focus of one of the ... longest running experiments to examine the impacts of tourist numbers upon penguin breeding performance ...
Meeting Document : WG-EMM-09/P07 : Autor(es): P.N. Trathan, J. Forcada, R. Atkinson, R.H. Downie and J.R. Shears
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Soft-sediment macrozoobenthos from Domain 1 (Antarctica): A preliminary report using community parameters and proxies
Abstract: The present scientific report presents the analysis of a database compilation in order ... to describe the macrobenthic communities and geochemical proxies biogenic opal and total organic ... carbon (TOC) present on the seafloor of Domain 1. The soft sediment macrobenthic communities were ... analyzed from different approaches. We describe the macrobenthos by means of traditional parameters such as ...
Meeting Document : SC-CAMLR-XXXVI/BG/10 : Autor(es): Delegation of Chile
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Phytoplankton standing stocks in relation to krill in Antarctic waters
abundance could be possible sites for locating krill fisheries in the southern oceans. Author(s): X.N ... Abstract: Investigations on krill trawl operations in the southern ocean were accompanied by the ... phytoplankton and zooplankton studies during the First Indian Antarctic Krill Expedition. The study area which ... , consisting of 32 diatoms and one dinoflagellete. Chaetoceros and Nitzschia spp. dominated the phytoplankton ...
Meeting Document : WG-EMM-98/34 : Autor(es): X.N. Verlecar, R. Vijayakumar, F. Saldhana and L. Martins (India)
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Preliminary examination of otolith microchemistry to determine stock structure in Antarctic toothfish (Dissostichus mawsoni) between SSRU 88.1C and 88.2H
CCAMLR SSRUs 88.1C (Ross Sea) and 88.2H (Amundsen Sea), could be differentiated by the trace elemental ... concentrations in the otolith edge and then to (ii) assess the potential of natal signatures to distinguish ... stocks among these regions. For the elements (Mg, Al and Sr) spatial variation in otolith chemistry was ... shown. This resulted in the correct classification of 63% of fish overall to their original capture ...
Meeting Document : WG-SAM-14/33 : Autor(es): R. Tana, B.J. Hicks, C. Pilditch and S.M. Hanchet (New Zealand)
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Preliminary results of an age/length study of juvenile Notothenia rossii marmorata from Potter Cove, South Shetland Islands
specimens of the same area. Our data are similar to the ones reported previously for fish of Admiralty Bay ... Islands. Results from the analysis of both structures agreed in 95.5%. Likewise, the examination of ... otolith cross sections of chosen specimens confirmed in all the cases the age readings obtained from the ... second whole sagittal otolith. First October instead of the commonly accepted 1 July, was taken as the ...
Meeting Document : WG-FSA-90/09 : Autor(es): E. Barrera-Oro and R. Casaux (Argentina)
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Comparisons in prey distribution between inshore and offshore foraging areas of chinstrap penguins and Antarctic fur seals at Seal Island
the slope/offshore region was less abundant with krill and more remote from their breeding sites than ... (Pygoscelis antarctica) went beyond the inshore region and foraged in the slope/offshore region, even though ... the inshore region. Only diurnal chinstrap penguins foraged in the inshore region. The following ... advantages are considered for visual predators to feed in the slope/offshore region at night:(l) krill showed ...
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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Physical and behavioural influences on larval fish retention: contrasting patterns in two Antarctic fishes
contribution to overall retention from spawning sites on the southwest South Georgia shelf. In addition, a ... of C. gunnari were strongly influenced by location of the spawning site, with the greatest ... Abstract: Waters around South Georgia are amongst the most productive in the Southern Ocean, and ... retention of the planktonic stages (eggs and larvae) of marine fish can play a key role in the maintenance ...
Meeting Document : WG-FSA-12/P10 : Autor(es): E.F. Young, J. Rock, M.P. Meredith, M. Belchier, E.J. Murphy and G.R. Carvalho
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Susceptibility to oxidative stress in different species of Antarctic birds: preliminary results
maccormicki), breeding at Edmonson Point (Wood Bay, Ross Sea). At the time of sampling, Adélie penguins were ... Abstract: The antioxidant defences in aerobic organisms represent the detoxification pathway ... during the 4-electrons reduction of molecular oxygen to water coupled with oxidative phosphorylation and ... during the activity of several enzymatic systems which produce ROS as intermediates. If the antioxidant ...
Meeting Document : WG-EMM-99/59 : Autor(es): S. Corsolini, F. Regoli, S. Olmastroni, M. Nigro and S. Focardi (Italy)
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Report of a domestic workshop to identify U.S. stakeholders’ objectives and protection priorities for one or more marine protected areas in Planning Domain 1
Island and the Marguerite Bay northeast to the tip of the peninsula and Joinville Island and including ... Abstract: The United States has substantive interests within the boundaries of Planning Domain 1 ... , and, in March 2015, scientists from the U.S. Antarctic Marine Living Resources Program hosted a ... domestic workshop to develop background information relevant to the establishment of one or more marine ...
Meeting Document : WG-EMM-15/34 : Autor(es): G. Watters (USA)
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Short note: time series of Drake Passage Oscillation Index (DPOI) from 1952 to 1988
1950s until 1988 at the Web sites of the Carbon Dioxide Information Analysis Centre for Rio Gallegos and ... differences across the Drake Passage, sea ice cover and chlorophyll-a in the Antarctic Peninsula area during ... 1982-1998. They found significant correlations between krill recruitment and those factors. The ... westerlies were especially regarded as a key environmental index. Fluctuations in the westerlies across the ...
Meeting Document : WG-EMM-02/44 : Autor(es): M. Naganobu and K. Kutsuwada (Japan)