Resultados de la búsqueda
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OPTIONS FOR USING UNREPLICATED ECOSYSTEM MONITORING DATA TO DETECT IMPACTS
these risks. No inference method can eliminate these risks, but characterising the trade-offs allows ... the frequency of very anomalous observations with no detectable change in the frequency of moderately ... Abstract: The CCAMLR ecosystem monitoring programme (CEMP) primarily indicates the short term ... indicate population size, which is the parameter that many conservation objectives attempt to control ...
Meeting Document : WG-EMM-09/26 : Autor(es): S. Hill, J. Forcada, P. Trathan and C. Waluda (United Kingdom)
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Baited Remote Underwater Video (BRUV) system to monitor Antarctic toothfish distribution and abundance: pilot study results and future design
Abstract: The Antarctic toothfish (Dissotichus mawsoni) is an ecologically and commercially ... relevant fish. Lacks of information on the species come from the traditional fishery-based methodology to ... collect samples, which does not cover all the areas of its distribution. Here we want to promote an ... alternative non-extractive methodology to expand the routine collection of data in areas not accessible by the ...
Meeting Document : WG-FSA-18/62 : Autor(es): D. Di Blasi, S. Canese, E. Carlig, L. Ghigliotti, S.J. Parker and M. Vacchi
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BEACH DEBRIS SURVEYS SOUTH SANDWICH ISLANDS
Abstract: Beach debris surveys were carried out at two sites in the South Sandwich Islands ... observations indicated that net floats were present on many beaches in the archipelago). No fragments of net or ... no fishing activity around the South Sandwich Islands at present and suggests that these types of ... (CCAMLR sub-area 48.4) during the 1996/7 austral summer. Two surveys of a north-east facing beach (1 km ...
Meeting Document : CCAMLR-XVI/BG/10 : Autor(es): Delegation of the United Kingdom
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Spatial distribution of foraging by female Antarctic fur seals
sites followed the same pattern of travel. There was no detectable difference in this behavior among ... Abstract: The study tested the hypothesis that the distribution of critical habitat for foraging ... by female Antarctic fur seals breeding at the island of South Georgia was influenced by physical ... gradients in the oceans and also by the need to avoid local competition for food. It also tested the ...
Meeting Document : WG-EMM-01/26 : Autor(es): I.L. Boyd, I.J. Staniland and A.R. Martin (United Kingdom)
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Spatial variability and power to detect regional-scale trends
between sites than within sites over time, inter-site variance can overwhelm the effects of other sources ... examined, monitoring at only 2 or 3 sites provided insufficient power to detect a trend. At the other ... extreme, monitoring at all sites in a region (a census) may be an unnecessary use of resources because the ... of a 2-tailed test meant that a few less sites were able to achieve the same power for a fixed ...
Meeting Document : WG-EMM-03/47 : Autor(es): C. Southwell and L. Emmerson (Australia)
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Population of macaroni penguins Eudyptes chrysolophus at Marion Island, 1994/95 to 2002/03, with information on breeding and diet
large colonies, at Bullard Beach and Kildalkey Bay, account for about 85% of the overall population. At ... both these colonies the area occupied by breeders showed no trend between 1983/84 and 2002/03, but the ... subantarctic Marion Island have decreased since the early 1980s. Estimates of the population at the island fell ... demonstration of a significant decrease in the overall population. Numbers of occupied nests at other colonies ...
Meeting Document : WG-EMM-03/15 : Autor(es): R.J.M. Crawford, J. Cooper and B.M. Dyer (South Africa)
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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)
less deviation from the mean, while females on both sites had very similar growth rates. If these ... site with relation to the local marine environment. Author(s): R. Hucke-Gaete, V. Vallejos and D ... 's population was observed during 1997/98. No evidence for an ENSO phenomenon influence is ... extent, and directly by krill or salp dominance, since the highest value of male growth rate (1995/96 ...
Meeting Document : WS-AREA 48-98/18 Rev. 1 : Autor(es): R. Hucke-Gaete, V. Vallejos and D. Torres (Chile)
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Entanglement of Antarctic fur seals Arctocephalus gazella in man made debris at Signy Island, South Orkney Islands, 1998/99
bands and synthetic line were the main entangling materials at both sites although a greater proportion ... %). Entanglements in packaging bands at Signy Island were 47% higher than the previous season. There were no reports ... Abstract: The results of the third annual survey of entanglement of Antarctic fur seals at Signy ... Island, South Orkney Islands are reported for the 1998/99 summer season. There were ten sightings of ...
Meeting Document : SC-CAMLR-XVIII/BG/06 : Autor(es): Delegation of the United Kingdom
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Información sobre la dinámica estacional e interanual de las condiciones de hielo del Mar de Weddell y lista de los sitios propuestos para recibir protección
Abstract: One condition for designating candidate sites to be afforded protection in the Weddell ... Sea is the subsequent yearly monitoring of these sites from research and fishing vessels, therefore ... interannual dynamics of ice conditions in the Weddell Sea and a list of candidate sites to be afforded ... knowledge about changes in interannual and seasonal ice dynamics is a fundamental factor for the successful ...
Meeting Document : SC-CAMLR-XXXIV/08 : Autor(es): Делегация Российской Федерации
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Identifying areas for monitoring studies
Abstract: The feedback management strategy in development will require a strengthen CEMP (or ... countries had being asked i) contribute to the CEMP program with their existing monitoring programs, even if ... not considered ‘official’ CMEP sites, ii) start new CEMP (or analogous) sites in new areas that ... complement the existing ones. Last year, Argentina proposed the incorporation of Cierva Cove as a Reference ...
Meeting Document : WG-EMM-14/61 Rev. 1 : Autor(es): J. Arata and F. Baeza (Chile)