Resultados de la búsqueda
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Beach debris survey Signy Island, South Orkney Islands, 2004/05
and size categories. A total of 38 items weighing 10.95kg were collected. The number of items found ... exception of 2003/2004 and marking a return to what has otherwise proved a declining trend since 1993/94 ... clearly show that the longevity of plastics and other materials with a high resistance to degradation in ... the marine environment remains a problem. The need for continued monitoring to ensure that vessels are ...
Meeting Document : SC-CAMLR-XXIV/BG/17 : Autor(es): Delegation of the United Kingdom
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Seabird avoidance measures for small Alaskan longline vessels
guidelines. Vessel speed was found to be a primary determinant of both the distance astern that longline ... 16.8 m and with infrastructure (a 45-m streamer line with a minimum aerial distance of 20 m) was ... achievable and practical regardless of vessel size, especially with a lighter streamer line design. However ... , the current requirement for small vessels using fixed gear of a single streamer line with no mandatory ...
Meeting Document : WG-FSA-05/36 : Autor(es): E.F. Melvin and M. Wainstein (USA)
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Monitoring krill population variability using seabirds and seals at South Georgia – new samplers provide new insights
distribution and abundance of a single dominant zooplankton species, Antarctic krill Euphausia superba. At ... associated with periods of low krill biomass, has shown that the population dynamics of krill is a major ... has provided the basis for a re-evaluation of the role of recruitment variability and high rates of ... . Furthermore the production of a consistent index of krill population size composition from the diet of ...
Meeting Document : WG-EMM-04/63 : Autor(es): K. Reid, E.J. Murphy, J.P. Croxall and P.N. Trathan (United Kingdom)
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Beach debris survey Signy Island, South Orkney Islands, 2002/03
and size categories. A total of 54 items weighing 27.36kg were collected. The number of items found ... continued the change in trend that began last season in what had otherwise been a declining trend since 1993 ... /94. Such a continued increase in the number of these packaging bands found indicates that the ban on ... longevity of plastics and other materials with a high resistance to degradation in the marine environment ...
Meeting Document : SC-CAMLR-XXII/BG/12 : Autor(es): Delegation of the United Kingdom
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Conservation of Antarctic pack-ice seals with increasing krill fishing and environmental change
. For Antarctic pack-ice seals, a main group of krill predators, we report the spatial density and krill ... suitable seal habitat has declined between 21 and 28% over a 30 year period; krill density has potentially ... , a critical source of krill for the Antarctic Peninsula and elsewhere. This area has the highest seal ... and in their environmental drivers calls for a precautionary management approach, in the absence of ...
Meeting Document : WS-MPA-11/24 : Autor(es): J. Forcada, P.N. Trathan (UK), P.L. Boveng (USA), I.L. Boyd (UK), D.P. Costa (USA), M. Fedak (UK), T.L. Rogers and C.J. Southwell (Australia)
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Descriptive analysis of the toothfish (Dissostichus spp.) tagging programme in Subareas 88.1 & 88.2 for the years 2000–01 to 2010–11
updated, including summaries of data for the 2011 season. Overall, a total of 28 458 Antarctic toothfish ... as being recaptured only a short distance from their point of release, typically less than 100 km ... and vice versa.. The total number of recaptures in 2010 and 2011 was at a similar level to 2007 and ... is more likely to be related to the different locations of fishing in 2009 rather than a lower ...
Meeting Document : WG-FSA-11/46 : Autor(es): S. Mormede, A. Dunn and S.M. Hanchet (New Zealand)
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PRELIMINARY PROPOSAL FOR MARINE SPATIAL PROTECTION AROUND THE SOUTH ORKNEY ISLANDS
Abstract: This paper proposes the establishment of a protected area to the south of the South ... paper discusses the need for further work required to achieve a comprehensive, adequate and ... Committee to: i) Endorse the work undertaken to date and recommend the adoption of a protected area ... Subarea 48.2 (South Orkney Islands), for which special use restrictions including a prohibition on fishing ...
Meeting Document : SC-CAMLR-XXVIII/14 : Autor(es): Delegation of the United Kingdom
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SOUTHERN OCEAN SENTINEL: REPORT OF THE FIRST INTERNATIONAL WORKSHOP IN 2009
Abstract: The first international workshop on implementing a Southern Ocean Sentinel program was ... presentations. A report of the workshop will be submitted to the Scientific Committee for its considerations in ... October 2009, including discussion on the following questions: A key conclusion of the workshop was that ... impacts on Southern Ocean marine ecosystems and work towards a quantitative assessment of impacts by 2014 ...
Meeting Document : WG-EMM-09/37 : Autor(es): A.J. Constable
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An Apparent Decrease in the Prevalence of “Ross Sea Killer Whales” in the Southern Ross Sea
decreased; prevalence as indicated by casual observations from helicopter pilots flying over the area on a ... daily basis has also decreased in nearby McMurdo Sound. Consistent with a decrease in the catch-per-unit ... change in Ross Sea killer whale numbers in the southern Ross Sea is related to a industrial fishery ... . Therefore, we propose, the Ross Sea killer whales have opted to move elsewhere in a scenario consistent with ...
Meeting Document : WG-EMM-09/P01 : Autor(es): D.G. Ainley, G. Ballard and S. Olmastroni
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INGESTION OF FISHING GEAR AND ENTANGLEMENTS OF SEABIRDS: IMPLICATIONS FOR MONITORING AND MANAGEMENT
of a 16 year dataset collected at Bird Island indicated that the amount of gear found in association ... corresponding with a substantial increase in the number of multifilament snoods (gangions), suggesting that the ... widespread adoption of a new longline system may have been responsible. Although all identified gear was ... demersal, given the widespread use of similar hooks, little could be assigned to a specific fishery ...
Meeting Document : WG-IMAF-09/10 : Autor(es): R.A. Phillips, C. Ridley, N. Harrison (United Kindom), K. Reid (Secretariat), G.N. Tuck (Australia) and P.J.A. Pugh (United Kingdom)