Resultados de la búsqueda
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Echo integration in low signal to noise regimes: methods of noise estimation and removal
Abstract: The results of acoustic surveys, especially in low signal-to-noise regimes, are ... contribution to the above-threshold-signal cannot later be removed in post processing. The only solution is to ... log unthresholded data and to correct for noise in post processing. Integrated data collected at 120 ... requires that logged data have high resolution in both depth and distance. It can be applied so long as ...
Meeting Document : WG-EMM-97/74 : Autor(es): Higginbottom, I., Pauly, T.
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An outline of the Antarctic research cruise by the Japanese RV Kaiyo Maru around the South Shetland Islands in 1994/95
Agency was conducted in the southwest of the Scotia Sea, especially in the vicinity of the South Shetland ... oceanographic and ecological survey in relation to the distribution and abundance of the Antarctic krill ... analytical studies are currently in progress. Author(s): Takao, T., Ogishima, T., Naganobu, M., Ichii, T ... South Shetland Islands in 1994/95 Approval: Approved ...
Meeting Document : WG-EMM-95/50 : Autor(es): Takao, T., Ogishima, T., Naganobu, M., Ichii, T., Kawaguchi, S.
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Towards a new method for age determination in Antarctic krill, and evidence that krill shrink under natural conditions
maintained in conditions of low food availability. Recent studies have also demonstrated that E. superba ... individuals may be shrinking in the field during winter. If krill shrink during the winter, conclusions ... reached by length-frequency analysis may be unreliable. In this study, the correlation between the body ... -length and the crystalline cone number of the compound eye was examined. Samples collected in the late ...
Meeting Document : WG-Krill-94/17 : Autor(es): W. de la Mare (Australia)
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Net escapement of Antarctic krill in trawls
Abstract: This document describes the aims and methodology of a three year project (commenced in ... 2012) entitled Net Escapement of Antarctic krill in Trawls (NEAT). The study will include a morphology ... . Results will be used to quantify the theoretic catch efficiency and escape mortality in different net ... selective properties for krill in different trawls. Author(s): B.A. Krafft (Norway), L.A. Krag, B. Herrmann ...
Meeting Document : WG-EMM-12/24 : Autor(es): B.A. Krafft (Norway), L.A. Krag, B. Herrmann (Denmark), A. Engås, S. Nordrum and S. Iversen (Norway)
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Foraging zones of the two sibling species of giant petrels in the Indian Ocean throughout the annual cycle: implication for their conservation
provided by ARGOS PTT. In order to assess differences in bycatch susceptibility, comparisons were made ... . Overall, in adults, all stages remained close to nesting sites, during and outside the breeding season ... , while juveniles dispersed throughout the southern ocean. In adults, the intersexual differences were ... higher than interspecific ones, with females showing a greater distribution range than males in both ...
Meeting Document : WG-FSA-12/67 : Autor(es): L. Thiers, K. Delord, C. Barbraud (France), R.A. Phillips (United Kingdom) and H. Weimerskirch (France)
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Modern data on parasitofauna of Dissostichus mawsoni and by-catch species from logline fishing in Antarctica
about this ecological group in Antarctica is very scared. Partial geographical and ecological isolation ... – Lophoura szidati. In this work we conclude the results of preliminary analysis of collected parasites of ... Antarctic fishes that were caught during longline fishing in seasons 2010/11 and 2011/12 in Subareas 88.1 ... Dissostichus mawsoni and by-catch species from logline fishing in Antarctica Approval: Approved ...
Meeting Document : WG-FSA-12/P09 : Autor(es): I.I. Gordeev and S.G. Sokolov
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Antarctic krill populations in the outflow region of the north-western Weddell Sea
Abstract: A meso-scale zooplankton and krill net sampling survey was carried out in the north ... -western Weddell See and in Bransfield Strait/western Antarctic Peninsula during late January to early ... distribution in the outflow region of the Weddell Sea. Due to severe pack-ice conditions, more than half of the ... highest in the western Peninsula region and lower in ice-covered Weddell Sea waters. Overall krill density ...
Meeting Document : WG-EMM-13/24 : Autor(es): V. Siegel (European Union)
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The dynamic of krill fishery and the environment in the Antarctic Peninsula Subarea (48.1)
Abstract: The dynamic of krill fishery in the Subarea 48.1 and its relation to the environment ... parameters (air temperature, atmospheric transport intensity, ice situation) in the Subarea 48. 1. The ... observed changes in the interannual and seasonal dynamics of the krill fishery in Subarea 48.1 are ... and S.N. Burikin (Russia) Title: The dynamic of krill fishery and the environment in the Antarctic ...
Meeting Document : WG-EMM-13/32 : Autor(es): S.M. Kasatkina, V.N. Shnar and S.N. Burikin (Russia)
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Updated progress report on the research fishery for Dissostichus spp. in Subarea 48.6 being jointly undertaken by Japan and South Africa: 2012/13 and 2013/14
Abstract: Japan and South Africa initiated a multi-year research plan in Statistical Subarea 48.6 ... as outlined in CM 41-04 (2012 & 2013) during the 2012/13 fishing season. Progress achieved during ... recaptured. Even though almost 50% of the recaptures are within season the progress in the northern section ... data to undertake tag-based assessment of the Dissostichus resource in the north of Subarea 48.6. We ...
Meeting Document : WG-FSA-14/67 : Autor(es): R. Leslie (South Africa), K. Taki, T. Ichii (Japan) and S. Somhlaba (South Africa)
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Research plan for exploratory fishing for toothfish (Dissostichus spp.) in East Antarctica (Divisions 58.4.1 and 58.4.2) by Australia
Abstract: Exploratory fishing for toothfish (Dissostichus spp.) in East Antarctica (Divisions ... 58.4.1 and 58.4.2) began in 2003. Robust stock assessment and catch limits according to CCAMLR decision ... Conservation Measure 41–01 to support a proposal for an Australian vessel to participate in exploratory fishing ... within Divisions 58.4.1 (SSRUs C, E, G) and 58.4.2 (SSRU E). Standardised longline fishing, in ...
Meeting Document : WG-SAM-15/10 : Autor(es): Delegation of Australia