Resultados de la búsqueda
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An index of per capita recruitment
)eM where R1 is the proportion of age-1 animals sampled in year y and M is the post-recruit mortality ... rate. The intent of the index is to facilitate investigation of reproductive success and the factors ... postulated to affect it. The formulation of PCR is based on the assumptions that: 1) post-recruit mortality ... the population is available; and 4) the proportion of age-1 animals in the sample can be determined ...
Meeting Document : WG-EMM-99/50 : Autor(es): R. Hewitt (USA)
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Linking fish and shags population trends
inshore demersal fish and Antarctic shags of the South Shetland Islands. The analysis is complemented with ... comparable information on diet, foraging patterns and breeding output of shags from the Danco Coast, western ... Antarctic Peninsula, an area that has remained out of the influence of the commercial fishery. Instead of ... climate change processes, indicated as responsible for the diminution of other bird populations, the most ...
Meeting Document : WG-EMM-12/36 : Autor(es): R. Casaux and E. Barrera-Oro (Argentina)
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Linking fish and shags population trends
inshore demersal fish and Antarctic shags of the South Shetland Islands. The analysis is complemented with ... comparable information on diet, foraging patterns and breeding output of shags from the Danco Coast, western ... Antarctic Peninsula, an area that has remained out of the influence of the commercial fishery. Instead of ... climate change processes, indicated as responsible for the diminution of other bird populations, the most ...
Meeting Document : WG-FSA-12/05 : Autor(es): R. Casaux and E. Barrera-Oro (Argentina)
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WG-EMM-95
Doc Number Title WG-EMM-95/01 Provisional agenda and provisional annotated agenda for the First ... Meeting of the Working Group on Ecosystem Monitoring and Management (WG-EMM) WG-EMM-95/02 List of ... within the local ground of Subarea 48.3 in June 1991 Kasatkina, S.M. WG-EMM-95/05 Growth of krill around ... the South Orkney Islands in 1989/90 Latogursky, V.I. WG-EMM-95/06 Summary of fine-scale catches of ...
Meeting
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Summer survey of fur seals at Prince Edward Island, southern Indian Ocean
Abstract: The onshore distributions and the abundances of Antarctic fur seals Arctocephalus ... December 2008. This repeats a survey conducted in December 2001 and extends the area surveyed to include ... the entire south-west coast of Prince Edward Island. Of the two colonies of Antarctic fur seals, the ... Subantarctic fur seals and putative hybrids. The other Antarctic fur seal breeding colony at Penguin Beach ...
Meeting Document : WG-EMM-10/P15 : Autor(es): M.N. Bester, P.G. Ryan and J. Visagie
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A method to evaluate selection of Antarctic krill in towed fishing gears
Abstract: The pelagic trawlers involved in the fishery for Antarctic krill (Euphausia superba ... ) apply different trawl designs. Very little information exists on the size selectivity of E. superba ... is valuable information for the management of harvested marine stocks. Size selectivity data is ... traditionally collected during timely and costly fishing experiments in the field where one design is tested at ...
Meeting Document : WG-EMM-13/34 : Autor(es): L.A. Krag, B. Herrmann (Denmark), S. Iversen, A. Engås, S. Nordrum and B.A. Krafft (Norway)
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Geographical aspects of utilising resources of krill (Euphausia superba)
Abstract: This paper presents data on the distribution of E. superba in the Atlantic sector and ... adjacent waters with an emphasis on subregions lying beyond the current fishing grounds of the Scotia Sea ... . In a number of subregions on the periphery of the Weddell Gyre (both to the north and south), as well ... as in the coastal waters of the Antarctic continent, the formation of krill aggregations is variable ...
Meeting Document : WG-EMM-96/05 : Autor(es): Makarov, R.R.
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Revised research longline fishing proposal for Dissostichus spp. in Subarea 48.2, second season
Abstract: This document contains the research plan proposed by the Chilean Delegation in the ... Subarea 48.2 including the observations suggested by the Working Group on Statistics, Assessments and ... Modelling (WG-SAM) during the meeting held in Buenos Aires, Argentina, on 26 to 30 June 2017. Among the ... recommendations adopted, coordination was achieved with the Delegation of Ukraine to develop research in the ...
Meeting Document : WG-FSA-17/27 : Autor(es): Delegation of Chile
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SCOI-97
Illegal fishing for toothfish (Dissostichus eleginoides) in French waters adjacent to the Kerguelen and ... fishing vessels in the Convention Area in the 1996/97 season Secretariat SCOI-97/07 The provision of ... information on the implementation of the Scheme of International Scientific Observation Secretariat SCOI-97/08 ... Amendments proposed to the text of the System of Inspection Secretariat SCOI-97/09 Information on reflagging ...
Meeting
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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 ... South Georgia interannual variability in the krill-based marine ecosystem has historically been most ... frequently detected in the response of upper-trophic level predators. Analysis of the changes in the ... population size structure of krill in the diet of Antarctic fur seals Arctocephalus gazella, particularly ...
Meeting Document : WG-EMM-04/63 : Autor(es): K. Reid, E.J. Murphy, J.P. Croxall and P.N. Trathan (United Kingdom)