Resultados de la búsqueda
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Pleuragramma antarcticum distribution in the Ross Sea during late austral summer 2013
, there is still much unknown about larval fish distribution in the Ross Sea, Antarctica. During a United ... sampled the icthyoplankton community at 17 locations in the western Ross Sea as well as one location in ... the central Ross Sea and one location in the far south of the eastern Ross Sea (in the Bay of Whales ... ). Larval P. antarcticum made up more than 99% of the icthyoplankton in the western Ross Sea. Most of these ...
Meeting Document : WG-EMM-14/38 : Autor(es): C. Brooks and K. Goetz (USA)
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To what extent do type C killer whales (Orcinus orca) feed on Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea, Antarctica?
Abstract: Information on type C killer whales in the Ross Sea region is reviewed, in particular ... item for type C killer whales in the Ross Sea: (1) type C killer whales near McMurdo Sound have been ... higher quality than other potential prey in the Ross Sea region; (3) densities of other alternative ... Ross Sea for feeding and the development of a fish-eating ecotype; (4) anecdotal observations of type C ...
Meeting Document : WG-EMM-13/29 : Autor(es): L. Torres, M.H. Pinkerton (New Zealand), R. Pitman, J. Durban (USA) and R. Eisert (New Zealand)
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Adélie penguin population change in the pacific sector of Antarctica: relation to sea-ice extent and the Antarctic Circumpolar Current
on Ross Island, Ross Sea, 1959 to 1997. The sizes of these colonies have displayed significant ... physical environmental factors during that part of the record with comparable sea-ice satellite imagery ... from 1973 to 1997. The Ross Sea sector of the Southern Ocean lying north of Ross Island, from 150° E to ... , and inversely, by the extent of sea-ice in the study area 5 winters earlier, and in some way related ...
Meeting Document : WG-EMM-01/23 : Autor(es): P.R. Wilson (New Zealand), D.G. Ainley, N. Nur, S.S. Jacobs (USA), K.J. Barton (New Zealand), G. Ballard and J.C. Comiso (USA)
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Predicting fishing ground accessibility in the Antarctic Weddell Sea
Abstract: Sea ice is a major constraint of fishery performance in the Southern Ocean seasonal sea ... ice zone. We use sea ice concentration data from 2002-2017 that cover the wider Weddell Sea to ... requested by CCAMLR research fishery regulations. Our findings indicate that under the actual sea ice ... areas such as along the ice shelf of the eastern and south-eastern Weddell Sea. We consider our models ...
Meeting Document : WG-SAM-18/01 : Autor(es): H. Pehlke, K. Teschke and T. Brey
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Oceanic debris observations in the southern ocean whale sanctuary, from Antarctic Peninsula to the Ross Sea: December 1994 to March 1995
start and finish of the expedition, especially near the Antarctic Convergence south of the Tasman Sea ... Peninsula, and north and northwest of the Ross Sea, and consisted mostly of plastic Items, especially ... Ross Sea, whereas non-penguin feathers dominated north and northwest of the Ross Sea. In the southern ... Ross Sea a single sample contained 31 small dead fish. Natural mesolitter quantities were usually low ...
Meeting Document : SC-CAMLR-XVI/BG/29 : Autor(es): ASOC Observer
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Network characterisation of the food-web of the Ross Sea, Antarctica
food-web of the Ross Sea shelf and slope before the advent of commercial fishing for Antarctic ... , i.e. the whole Ross Sea shelf and slope area, averaged over a typical year, and in 35 trophic groups ... not resolved by this analysis. The Ross Sea food-web is a partially inverted biomass pyramid with a ... the total living biomass in the Ross Sea (bacteria excluded). The six groups with the highest ‘indices ...
Meeting Document : WG-EMM-12/53 : Autor(es): M.H. Pinkerton and J.M. Bradford-Grieve (New Zealand)
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The relationship between sea-ice cover and Adélie penguin reproductive performance at Béchervaise Island
between sea-ice and penguin populations based on data from multiple sites to predict the likely outcome of ... population growth in response to a reduction in the frequency of heavy sea-ice years. However, it is ... the form of sea-ice present, the season in which it is present and the processes that such sea-ice ... between sea-ice and Adélie penguin reproductive performance, we investigate the relative importance of ...
Meeting Document : WG-EMM-07/21 : Autor(es): L. Emmerson and C. Southwell (Australia)
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Predation release of Antarctic silverfish in the Ross Sea: how sensitive is the conclusion to uncertainties in the diet of Antarctic toothfish over the shelf?
adeliae) at breeding colonies in the southern Ross Sea more than doubled from about 235 000 to more than ... , consumption rates and diets of toothfish and Adélie penguins over the Ross Sea shelf as a first test of the ... weight of prey) over the southern Ross Sea shelf, including in McMurdo Sound (0.4–6.4%W) and Terra Nova ... as part of the sub-adult Ross Sea survey. The mass of silverfish estimated as being released from ...
Meeting Document : WG-FSA-15/41 : Autor(es): M.H. Pinkerton, P. O’B. Lyver, D.W. Stevens, J. Forman, R. Eisert and S. Mormede (New Zealand)
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Methodology for automated spatial sea ice summaries in the Southern Ocean
Abstract: Sea ice is recognised as a core driver of both ecosystem dynamics and fishery ... performance in the Southern Ocean. Sea ice can limit access to fishing grounds, for both commercial fishing ... sea ice concentration data in the Southern Ocean, and relate it to data on commercial fishing vessel ... dynamics of sea ice in a target location for a specified period, and a temporal view is used to ...
Meeting Document : WG-FSA-14/54 : Autor(es): S.J. Parker, S.D. Hoyle, J.M. Fenaughty and A. Kohout (New Zealand)
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Comparison between the CCAMLR-2000 and KY 1988 surveys on environmental variability of krill in the Scotia Sea, Antarctica
Japanese R/V Kaiyo Maru Survey in the 1987/88 austral summer season in the Scotia Sea. There were distinct ... differences between the 2000 and 1987/88 Surveys with regard to sea ice extent, oceanographic structure and ... krill distribution. The sea ice cover in 1987/88 extended northward widely during the last winter season ... such that sea ice remained around the South Orkney Islands until December 1987. In contrast, the sea ...
Meeting Document : WG-EMM-02/43 : Autor(es): M. Naganobu (Japan), M. Brandon (United Kingdom), K. Ito, K. Segawa (Japan) and V. Siegel (Germany)