Resultados de la búsqueda
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The foraging range of Adélie penguins at Béchervaise Island, Mac. Robertson Land, Antarctica, and its overlap with the krill fishery
Paper Title: The foraging range of Adélie penguins at Béchervaise Island, Mac. Robertson Land ... , Antarctica, and its overlap with the krill fishery Abstract / Description: The foraging ranges of six female ... ) were determined by satellite tracking using the ARGOS system. Birds were tracked over four foraging ... trips (two females and four males) during the incubation period (November to December 1991) and 17 trips ... fisheries show that much of their catch occurred in the Prydz Bay region (Division 58.4.2). The Soviet ... first time an overlap occurring in the Prydz Bay region between the foraging range of Ad6lie penguins ... . 1988. Hydroacoustic surveys of the distribution and abundance of krill: Prydz Bay region- FIBEX, AD ... WG-CEMP-92/36 THE FORAGING RANGE OF ADELIE PENGUINS AT ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 337–344 : Autor(es): Kerry, K.R., J.R. Clarke and G.D. Else
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A review of data on abundance, trends in abundance, habitat use and diet of ice-breeding seals in the Southern Ocean (submitted to the 2008 Joint CCAMLR-IWC Workshop)
-breeding seals in the Southern Ocean (submitted to the 2008 Joint CCAMLR-IWC Workshop) Abstract ... / Description: The development of models of marine ecosystems in the Southern Ocean is becoming increasingly ... habitats of the Southern Ocean (i.e. crabeater seal, Lobodon carcinophaga; Ross seal, Ommatophoca rossii ... are identified and discussed. Spatial and temporal gaps in knowledge of the populations, habitats and ... the fast-ice edge in Prydz Bay remained close to their tagging site with no evidence of pronounced ... position in the pack-ice at five locations around Antarctica in February (at one of these sites counts of ... (1962) would have underes- timated true densities because no adjustment was made for the number of ... et al. (1995) noted that the only crabeater seal that left the pack-ice crossed a large bay of open ...
Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 49–74 : Autor(es): Southwell, C., J. Bengtson, M. Bester, A.S. Blix, H. Bornemann, P. Boveng and M. Cameron, J. Forcada, J. Laake, E. Nordøy, J. Plötz, T. Rogers, D. Southwell, D. Steinhage, B.S. Stewart and P. Trathan
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Precautionary spatial protection to facilitate the scientific study of habitats and communities under ice shelves in the context of recent, rapid, regional climate change
Paper Title: Precautionary spatial protection to facilitate the scientific study of habitats and ... communities under ice shelves in the context of recent, rapid, regional climate change Abstract / Description ... : Recent rapid climate change is now well documented in the Antarctic, particularly in the Antarctic ... Peninsula region. One of the most evident signs of climate change has been ice-shelf collapse; overall, 87 ... volume of deep water in Pine Island Bay has increased in recent years. Faster basal melting under the ... , 2012) mean that community processes will vary across a range of sites. The Antarctic shelf ecosystems ... collapsing ice shelves and retreating glaciers. However, there has been no resolution about the best way to ... tip of the Antarctic Peninsula. No commercial fishing took place south of Antarctic Sound at the tip ...
Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 139–151 : Autor(es): Trathan, P.N., S.M. Grant, V. Siegel and K.-H. Kock
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A first step towards modelling the krill–predator dynamics of the Antarctic ecosystem
Paper Title: A first step towards modelling the krill–predator dynamics of the Antarctic ... ecosystem Abstract / Description: The history of human harvests of seals, whales, fish and krill in the ... Antarctic is summarised briefly, and the central role played by krill emphasised. The background to the ... hypothesis of a krill surplus in the mid-20th century is described, and the information on population and ... (2005) report that in the deep parts of the Ross Sea and Prydz Bay, minke whales feed on E ... details in the ‘Discussion’ section). Although no direct inferences can be made, there are several ... other breeding sites such as the South Shetland, Bouvet, Marion, Possession and Heard Islands also ... harvesting of the krill-feeding large baleen whales. Since there is no ...
Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 217–277 : Autor(es): Mori, M. and D.S. Butterworth
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Abundance, size and maturity of krill (Euphausia superba) in the krill fishing ground of Subarea 48.1 during the 1990/91 austral summer
Paper Title: Abundance, size and maturity of krill (Euphausia superba) in the krill fishing ... ground of Subarea 48.1 during the 1990/91 austral summer Abstract / Description: Acoustic and net ... sampling surveys for krill were conducted in the krill fishing ground north of the South Shetland Islands ... of krill were observed. The survey area was divided into four zones: oceanic, slope frontal, neritic ... current along the shelf break, before becoming trapped in Barclay Bay on the northern side of Livingston ... (EUPHAUSIA SUPERBA) IN THE KRILL FISHING GROUND OF SUBAREA 48.1 DURING THE 1990/91 AUSTRAL SUMMER T ... conducted in the krill fishing ground north of the South Shetland Islands from 18 January to 3 February ... 1991. Distinct offshore-inshore heterogeneities in abundance and maturity of krill were observed. The ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 183–199 : Autor(es): Ichii, T., H. Ishii and M. Naganobu
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On the power to detect changes using the standard methods for monitoring parameters of predatory species
Paper Title: On the power to detect changes using the standard methods for monitoring parameters ... of predatory species Abstract / Description: The CCAMLR guidelines (CCAMLR, 1989) for analyzing the ... statistical power to detect changes are applied using variance estimates from studies at the South Shetland ... trip duration (C2.0). The other Standard Methods are not evaluated because the power analysis in the ... complexity of some of the designs, there may be no general formula for evaluating power or determining a ... from the study by Trivelpiece et al. (1989) at Admiralty Bay, King George Island (62°10'S, 58°30'W ... sample sizes for detecting changes of 10%, 20% and 30% of the mean values are shown in Table 2. No ... Population Size (A3.1) There were no suitable estimates of variance for the data on breeding population ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 377–397 : Autor(es): Boveng, P. and J.L. Bengtson
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Use of the Leslie stock depletion model for the assessment of local abundance of Patagonian toothfish (Dissostichus eleginoides)
potential for application of the model in some areas than in others, but in general there is no sufficiently ... Paper Title: Use of the Leslie stock depletion model for the assessment of local abundance of ... Patagonian toothfish (Dissostichus eleginoides) Abstract / Description: The Leslie depletion model has been ... used to examine local patterns in catch per unit effort (CPUE) in the longline fisheries for Patagonian ... than in others, but in general there is no sufficiently consistent signal in the data for the ... no significant movement of fish in or out of the local area. M was assumed to be not significantly ... vessels which overlapped with the series being analysed. Note that no detailed position information was ... applied in the 1993/94 season, five separate fishing sites were chosen within the existing fishing ...
Science Journal Paper : CCAMLR Science, Volume 3 (CCAMLR Science, Volume 3) : 55–77 : Autor(es): Parkes, G., C.A. Moreno, G. Pilling and Z. Young
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Distribution characteristics of krill aggregations in the fishing ground off Coronation Island in the 1989/90 season
. Wind force had no direct or indirect influence on the types of krill aggregations or their density. The ... Paper Title: Distribution characteristics of krill aggregations in the fishing ground off ... Coronation Island in the 1989/90 season Abstract / Description: Distributional characteristics of krill ... aggregations in the Coronation Island fishing ground were examined in relation to environmental factors, the ... temperature had no direct impact on krill distribution, although increased temperature towards the end of the ... AGGREGATIONS IN THE FISHING GROUND OFF CORONATION ISLAND IN THE 1989/90 SEASON S.M. Kasatkina and V.I ... . Latogursky* * Abstract Distributional characteristics of kriU aggregations in the Coronation Island ... fishing ground were examined in relation to environmental factors, the biological condition of krill and ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 49–73 : Autor(es): Kasatkina, S.M. and V.I. Latogursky
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Analysis of results from demersal fish surveys at South Georgia, undertaken by the United Kingdom and the USSR, January and February 1990
these large hauls were considered in the analysis. No ideal method was found for incorporating the large ... Paper Title: Analysis of results from demersal fish surveys at South Georgia, undertaken by the ... United Kingdom and the USSR, January and February 1990 Abstract / Description: The report describes ... discussions and analyses of the data from a survey from MV Hill Cove in January 1990 and RV Akademik Knipovich ... large hauls were considered in the analysis. No ideal method was found for incorporating the large ... como se consideraron estos lances voluminosos en los anaIisis, pero no se logro encontrar un metodo ... results. The presence of zero as a biomass value indicates that no catch was made of that species by the ... insufficient to warrant allocating a sampling station. See Table 3. No indicator in the final column ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 223–254 : Autor(es): (Report of a Joint UK/USSR Workshop, 23 to 27 July 1990)
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A first attempt at an assessment of the Patagonian toothfish (Dissostichus eleginoides) resource in the Prince Edward Islands EEZ
Paper Title: A first attempt at an assessment of the Patagonian toothfish (Dissostichus ... eleginoides) resource in the Prince Edward Islands EEZ Abstract / Description: The history of the fishery for ... Patagonian toothfish (Dissostichus eleginoides) in the Prince Edward Islands Exclusive Economic Zone (EEZ) is ... a robust indication that the spawning biomass has been depleted to, at most, a few percent only of ... shing enter the Prince Edward Islands EEZ in greater numbers when no legitimate South African vessels ... operators were photographed in the Prince Edward Islands EEZ. No illegal operators were sighted during ... the at-sea reconnaissance in 2000. No prosecutions have as yet been instigated by South Africa on ... , Vol. 9 (2002): 11–32 11 A FIRST ATTEMPT AT AN ASSESSMENT OF THE PATAGONIAN TOOTHFISH (DISSOSTICHUS ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 11–32 : Autor(es): Brandão, A., D.S. Butterworth, B.P. Watkins and D.G.M. Miller