Resultados de la búsqueda
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Accounting for food requirements of seabirds in fisheries management – the case of the South African purse-seine fishery
Abstract: In South Africa, four seabirds that feed mainly on sardine Sardinops sagax and anchovy Engraulis encrasicolus all have an unfavourable conservation status or a small population: African penguin Spheniscus demersus, Cape gannet Morus capensis, Cape cormorant Phalacrocorax capensis and
Meeting Document : WG-EMM-04/28 : Autor(es): R.J.M Crawford (South Africa)
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Counts of surface-nesting seabirds at Marion Island in 2003/04
Abstract: Numbers of gentoo penguins Pygoscelis papua, macaroni penguins Eudyptes chrysolophus, eastern rockhopper penguins E. chrysocome filholi and Crozet shags Phalacrocorax [atriceps] melanogenis continued to decrease at Marion Island in 2003/04. The decreases are thought to be due to a
Meeting Document : WG-EMM-04/29 : Autor(es): R.J.M Crawford, N. de Bruyn, B.M. Dyer, B. Hanise, N.T.W. Klages, P.G. Ryan, L.G. Underhill and L. Upfold (South Africa)
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Approaches to evaluating and testing of CEMP methods for parameters A1, A5 and A7
Abstract: The methods and presentation of CEMP parameters A1, A5 and A7 where evaluated using simulated time-series data. The effects of sampling timing and intensity during five-day periods for measures of arrival and fledging mass suggested that situations where sampling is distributed unevenly
Meeting Document : WG-EMM-04/60 : Autor(es): G. Watters (USA) and K. Reid (United Kingdom)
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Approaches to the simplification of the summary and presentation of CEMP data
Abstract: The current approach to providing advice on the status of the krill-centric ecosystem relies on the evaluation of statistical anomalies in the CEMP database. A new approach based on the ordination of variables according to functional groupings is suggested. This approach uses the
Meeting Document : WG-EMM-04/61 : Autor(es): K. Reid (United Kingdom) and G. Watters (USA)
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An initial analysis of the characteristics of Antarctic krill taken by the commercial fishery and Antarctic fur seals during the winters of 2002 and 2003 at South Georgia
Abstract: We present an initial analysis of the fishing locations, fishing depth and length-frequency distribution of krill at South Georgia during the winter of 2002 and 2003 and compare these with the length-frequency distribution and frequency of occurrence of krill in the diet of Antarctic fur
Meeting Document : WG-EMM-04/62 : Autor(es): K. Reid, D.J. Agnew, N.L. Warren and E. Owen (United Kingdom)
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Monitoring krill population variability using seabirds and seals at South Georgia – new samplers provide new insights
Abstract: Variability in the Southern Ocean is often characterised by fluctuations in the distribution and abundance of a single dominant zooplankton species, Antarctic krill Euphausia superba. At South Georgia interannual variability in the krill-based marine ecosystem has historically been most
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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Shipboard line transect surveys of crabeater seal abundance in the pack-ice off East Antarctica: evaluation of assumptions
Abstract: The extent to which the assumptions underlying line transect sampling are satisfied in shipboard surveys of crabeater seals hauled-out on the Antarctic pack-ice is examined. Crabeater seals showed little movement in response to the approaching ship. Movement away from the ship by seals
Meeting Document : WG-EMM-04/64 : Autor(es): C. Southwell, W. de la Mare (Australia), D. Borchers and L. Burt (United Kingdom)
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The structure and spatial distribution of Antarctic krill aggregations from acoustic observation in the South Georgia area
Abstract: Results of acoustic surveys carried out in winter months of 2000 and 2002 demonstrate significant distinctions in spatial distribution patterns of krill in the northwestern and the northeastern parts of South Georgia area. The boundary between two areas is located at about 37°30/ W. It
Meeting Document : WG-EMM-04/66 Rev. 1 : Autor(es): S.M. Kasatkina (Russia)
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Report of the Workshop on Plausible Ecosystem Models for Testing Approaches to Krill Management
Title: Report of the Workshop on Plausible Ecosystem Models for Testing Approaches to Krill Management Approval: Approved
Meeting Document : WG-EMM-04/73
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Provisional Agenda and Provisional Annotated Agenda for the 2004 Meeting of the Working Group on Fish Stock Assessment (WG FSA)
Title: Provisional Agenda and Provisional Annotated Agenda for the 2004 Meeting of the Working Group on Fish Stock Assessment (WG FSA) Approval: Approved
Meeting Document : WG-FSA-04/1