Resultados de la búsqueda
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Maximum entropy reconstruction of stock distribution and inference of stock density from line-transect acoustic survey data
distribution from acoustic line-transect data. MaxEnt is founded on the bedrock of probability theory and ... allows the most efficient possible use of known data in the inference process. The method takes explicit ... account of spatial correlation in the observed data and seeks to reconstruct a distribution of density ... across the whole survey area that is both consistent with the observed data and for which the entropy is ...
Meeting Document : WG-EMM-02/35 : Autor(es): A.S. Brierley, S.F. Gull and M.H. Wafy (United Kingdom)
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APPLYING A TS-PROBE FOR MEASURING ANTARCTIC KRILL (EUPHAUSIA SUPERBA) TARGET STRENGTH IN SITU: PROCEDURES AND DATA ANALYSIS
Abstract: A submersible multifrequency acoustic TS-probe was used for measuring the target ... strength of Antarctic krill in situ at short range. The experimental methods, procedure for data retrieval ... operating at 38, 120 and 200 kHz is installed in the probe, connected to three pressure resistant ... transducers with 7o half power beam opening angles. The orientation of the probe was monitored with sensors ...
Meeting Document : SG-ASAM-09/13 : Autor(es): G. Skaret, L. Calise and E. Ona (Norway)
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Distribution and population structure of Dissostichus eleginoides and D. mawsoni on BANZARE Bank (CCAMLR Division 58.4.3b), Indian Ocean, Antarctic
maturity condition for Dissostichus eleginoides and D. mawsoni were investigated on Banzare Bank, using the ... fishing season. D. eleginoides was mainly caught in the shallower bank <1000 m, while D. mawsoni was ... mainly caught in the deeper slope >1500 m. The separation of the two species by depths may be related ... to the physical intolerance to the cooler temperature by the lack of antifreeze for the former ...
Meeting Document : WG-FSA-10/47 : Autor(es): K. Taki, M. Kiyota, T. Ichii and T. Iwami (Japan)
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Distribution and population structure of Dissostichus eleginoides and D. mawsoni on BANZARE Bank (CCAMLR Division 58.4.3b), Indian Ocean, Antarctic
maturity condition for Dissostichus eleginoides and D. mawsoni were investigated on Banzare Bank, using the ... fishing season. D. eleginoides was mainly caught in the shallower bank <1000 m, while D. mawsoni was ... mainly caught in the deeper slope >1500 m. The separation of the two species by depths may be related ... to the physical intolerance to the cooler temperature by the lack of antifreeze for the former ...
Meeting Document : WG-SAM-10/16 : Autor(es): K. Taki, M. Kiyota, T. Ichii and T. Iwami (Japan)
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Destruction of Antarctic terrestrial ecosystems by a rapidly increasing fur seal population
Abstract: The terrestrial environment of Signy Island, South Orkney Islands, maritime Antarctic ... , is undergoing rapid and possibly irreversible change caused by a natural biological agent. During the ... past decade there has been a dramatic increase in the number of Antarctic fur seals Arctocephalus ... gazella coming ashore on the island during the short summers. It is not known whether significant numbers ...
Meeting Document : SC-CAMLR-VII/BG/06 : Autor(es): R.I. Lewis Smith (United Kingdom)
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UNA PROPUESTA PARA LA NOTIFICACIÓN DE ACCIDENTES MARINOS A LA CCRVMA
Abstract: The delegations of the United States and New Zealand propose to amend CCAMLR ... flag vessels operating in the Convention Area) to require an investigation in the event of a very ... serious marine casualty¹ involving a fishing vessel². Such investigation will result in the preparation of ... a report to be shared with the Commission. The proposal is consistent with Article 94(7) of the ...
Meeting Document : CCAMLR-XXX/24 : Autor(es): Delegations of the USA and New Zealand
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Proposal for a winter longline survey of Antarctic toothfish in Subarea 88.1 SSRUs B–C in 2016
Abstract: We propose to conduct a scientific survey during the austral winter in the northern ... Ross Sea region to investigate spawning dynamics of Antarctic toothfish, as requested by the Scientific ... Committee in 2013. The longline survey is designed to cover key gaps in the knowledge of the life cycle of ... Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea by collecting biological samples from a range of ...
Meeting Document : WG-SAM-15/47 : Autor(es): S.J. Parker, S.M. Hanchet and R.J.C. Currey (New Zealand)
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CCAMLR-XXII
Full Name: Twenty-second Meeting of the Commission Location: Hobart, Australia Date(s): Monday ... Provisional Agenda for the Twenty-second Meeting of the Commission for the Conservation of Antarctic Marine ... Living Resources CCAMLR-XXII/02 Provisional Annotated Agenda for the Twenty-second Meeting of the ... Commission for the Conservation of Antarctic Marine Living Resources CCAMLR-XXII/03 Examination of the ...
Meeting
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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)