Resultados de la búsqueda
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Krill population trends
of sources: from net surveys (the longest historical series of available date), from acoustic surveys ... , from fisheries data and from the distribution of krill predators. Each of these forms of data ... abundance comes from utilising the various forms of data to the maximum extent possible. Time series data ... are really only available from the South Atlantic where scientific netting programs and annual ...
Meeting Document : CCAMLR-IWC-WS-08/11 : Autor(es): Tarling, G., Watkins, J., Quetin, L., Reiss, C., Atkinson, A., Ross, R., Pakhomov, E., Kawaguchi, S., Nicol, S., Siegel, V.
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Krill fishery report: 2010 update
Abstract: So far this season (2009/10), ten of the 11 krill fishing vessels licensed by Members ... (China, Japan, Korea, Norway, Poland, Russia) have fished in Area 48. The total catch reported to May ... . Approximately 40% of the catch has been taken by two vessels using the continuous fishing system. The forecast ... total catch of krill for the season is 150000-180000 t. In 2008/09, five Members fished for krill in ...
Meeting Document : WG-EMM-10/05 : Autor(es): Secretariat
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Grupo de Trabajo sobre Estadísticas, Evaluaciones y Modelado (WG-SAM)
In 2001, WG-FSA identified the difficulties that arose when new quantitative methodologies are ... introduced and incorporated into assessments undertaken during the time of a single meeting. As a result, the ... 2002 WG-FSA agreed that the subgroup should meet during the intersessional period and it has met each ... year since 2003, usually in association with the timing and location of the meeting of the Working ...
Page : Site Section: Science
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Krill CPUE standardisation and comparison with acoustic data based on data collected from Chinese fishing vessels in Subarea 48.1
Abstract: The usability of CPUE data as Antarctic krill abundance index was a widely discussed ... issue. Many studies suggested the CPUE data should be standardized before using as abundance/biomass ... index. We tried to develop general additive models to standardize the CPUE data collected from Chinese ... fishing vessels during 2009/10-2013/14 seasons. We also compared the CPUE data and acoustic data collected ...
Meeting Document : WG-EMM-17/41 : Autor(es): Y. Ying, X. Wang, J. Zhu and X. Zhao
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Abundance and richness of key Antarctic seafloor fauna correlates with modelled food availability
Abstract: Most seafloor communities at depths below the photosynthesis zone rely on food that ... sinks through the water column. However, the nature and strength of this pelagic–benthic coupling and ... its influence on the structure and diversity of seafloor communities is unclear, especially around ... Antarctica where ecological data are sparse. Here we show that the strength of pelagic–benthic coupling along ...
Meeting Document : WS-SM-18/P01 : Autor(es): J. Jansen, N.A. Hill, P.K. Dunstan, J. McKinlay, M.D. Sumner, A.L. Post, M.P. Eléaume, L.K. Armand, J.P. Warncock, B.K. Galton-Fenzi and C.R. Johnson
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CCAMLR scientific observation: tasks, priorities and time budget
Abstract: The workload of the tasks required in the CCAMLR Observer manual is assessed. The total ... time needed for the minimum amount of daily routine tasks was well above the capacity that an observer ... to undertake. The manual must be structured as its entirety so that the observer, only by following ... instructions in the manual, can produce the report and logbook data which is collected systematically and ...
Meeting Document : WG-EMM-07/26 : Autor(es): S. Kawaguchi (Australia)
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Management plan for Site of Special Scientific Interest (SSSI) No. 1
Abstract: Management at Cape Royds aims to: • avoid degradation of, or substantial risk to, the ... values of the Area by preventing unnecessary human disturbance to the Area; • allow scientific research ... on the ecosystem, and in particular on the avifauna in the Area, while ensuring protection from over ... -sampling; • minimize the possibility of introduction of alien plants, animals and microbes into the Area ...
Meeting Document : WG-EMM-02/59 : Autor(es): Secretariat
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Near-shore acoustic surveys for Antarctic krill at South Georgia, January 2004
Abstract: Dual frequency (120 and 38 kHz) acoustic surveys were conducted around the Willis ... Islands and off the Barff Peninsula, South Georgia, from a 59 foot yacht in January 2004. The purpose of ... the surveys was to determine krill density near shore, in regions that have not traditionally been ... provisioning chicks ashore were foraging. Despite its relatively small size, the yacht (Golden Fleece) proved ...
Meeting Document : WG-EMM-04/35 : Autor(es): A.S. Brierley, P.N. Trathan, J. Poncet and A. Morton (United Kingdom)
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Observer notes (Subarea 88.1)
bottom long-line sets in Subarea 88.1 from 15.12.03 till 10.03.04 are presented. For the first time ... Antarctic toothfish was found in long-line catches above seamounts of the Pacific-Antarctic Ridge to the ... cannot lead to their intbreeding as its gonads were at the early development stages in that period ... . Antarctic toothfish spawning takes place above the mountains of the Pacific-Antarctic Ridge, located ...
Meeting Document : WG-FSA-04/89 : Autor(es): V.G. Prutko (Ukraine)
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Fish and invertebrate by-catch from Australian fisheries for D. eleginoides and C. gunnari in Division 58.5.2
Islands in CCAMLR Statistical Division 58.5.2. These comprise a trawl and a longline fishery for the ... gunnari. This paper presents available by-catch information for the three fisheries including estimates of ... . Preliminary results from a rajid tagging program are also presented. Total removals of by-catch in the trawl ... caught in the D. eleginoides trawl fishery and 107 tonnes in the C. gunnari trawl fishery. These values ...
Meeting Document : WG-FSA-03/73 : Autor(es): E.M. van Wijk and R. Williams (Australia)