Resultados de la búsqueda
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Krill distribution patterns in the Atlantic sector of the Antarctic during the CCAMLR-2000 Survey
the large scale krill biomass in the South Atlantic Sector of the Antarctic. Four vessels from Japan ... krill distribution showed three distinct geographical clusters of size frequency distributions. Small to ... medium sized juvenile and subadult krill mainly occurred east of the South Orkney Islands. Adult krill ... adult krill larger than 50 mm mean size was found to the north of cluster 2, but at the same time was ...
Meeting Document : WG-EMM-00/6 Rev. 1 : Autor(es): V. Siegel (Germany), S. Kawaguchi (Japan), F. Litvinov (Russia), V. Loeb (USA) and J. Watkins (United Kingdom)
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Risk maps for Antarctic krill under projected Southern Ocean acidification
Abstract: The embryonic development of Antarctic krill (Euphausia superba) is sensitive to ... development even if the embryos are transferred to seawater with current levels of CO 2. Krill embryos appear ... the east (the Haakon VII Sea) are the highest risk areas for krill embryos. The entire Southern Ocean ... to collapse of the krill population. This is the first report that explores the circumpolar impacts ...
Meeting Document : WG-EMM-14/P06 : Autor(es): S. Kawaguchi, A. Ishida, R. King, B. Raymond, N. Waller, A. Constable, S. Nicol, M. Wakit and A. Ishimatsu
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CPUEs and body length of Antarctic krill during the 1999/2000 season in Area 48
Abstract: Four Japanese krill fishing vessels operated in Area 48 during the 1999/2000 split year ... . Trawling positions, CPUEs and body length of Antarctic krill during the period is described. The krill ... the possibility of intra-annual variability of two krill stocks (Antarctic Peninsula and Weddell Sea ... krill during the 1999/2000 season in Area 48 Approval: Approved ...
Meeting Document : WG-EMM-01/36 : Autor(es): S. Kawaguchi and M. Naganobu (Japan)
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KRILL DENSITY ESTIMATES IN CCAMLR SUBAREA 48.6 BASED ON ACOUSTIC DATA COLLECTED DURING JANUARY–MARCH 2008
Antarctic Krill and Ecosystem Studies (AKES) from January to March 2008. Acoustical data were sampled ... S in the sparsely studied CCAMLR subarea 48.6. The mean density of Antarctic krill, integrated to ... 270 m depth was 4.42 g/m2. The krill were mainly found in strong aggregations and were patchily ... distributed. The majority of the detected krill was distributed between 40 and 80 m depth, and approximately ...
Meeting Document : WG-EMM-09/45 : Autor(es): G. Skaret, B.A. Krafft and R. Korneliussen (Norway)
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The integrated krill assessment model for Subarea 48.1 with future catches meeting alternative decision rules
Abstract: Model results and diagnostics for the integrated assessment model for krill in Subarea ... 48.1 are summarized. Alternative potential decision rules based on the distributions of krill spawning ... , and WG-FSA in a number of papers since 2011. The assessment model for krill in Subarea 48.1 is offered ... as a tool for CCAMLR to use in managing the krill fishery in Subarea 48.1. Author(s): D. Kinzey, G.M ...
Meeting Document : WG-SAM-16/36 Rev. 1 : Autor(es): D. Kinzey, G.M. Watters and C.S. Reiss
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A multiple-frequency method for identifying and assessing the Antarctic krill stock in the Ross Sea (1989/90, 1997/98 and 1999/2000)
Italian expeditions to the Ross Sea to discriminate Euphausia superba (krill) aggregations from Euphausia ... applied to estimate krill biomass in the area of Ross Sea (22000 nm2), investigated from 19 to 26 December ... 1997. It results that krill biomass estimated by the criteria based on multiple frequency method is ... 8.87% lower than krill biomass estimated using conventional methods (net samplings and/or echogram ...
Meeting Document : WG-EMM-00/37 : Autor(es): M. Azzali, J. Kalinowski and G. Lanciani (Italy)
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Modelling the predator–prey interactions of krill, baleen whales and seals in the Antarctic ecosystem
Abstract: The history of human harvests of seals, whales, fish and krill in the Antarctic is ... summarized briefly, and the central role played by krill emphasized. The background to the hypothesis of a ... krill surplus in the mid 20th Century is described, and the information on population and trend levels ... krill, four baleen whale (blue, fin, humpback and minke) and two seal (Antarctic fur and crabeater ...
Meeting Document : WG-EMM-05/34 : Autor(es): M. Mori and D.S. Butterworth (South Africa)
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Swarm characteristics of Antarctic krill Euphausia superba relative to the proximity of land during summer in the Scotia Sea
swarming characteristics of Antarctic krill across the Scotia Sea in January and February 2003. Krill ... zone compared to <80 m 2 further offshore. The packing concentration of krill within inshore swarms ... . The highest median number of swarms per km and krill acoustic biomass per km was found in the 50 to ... marginally deeper in the night in offshore regions. Krill are likely to move between inshore and offshore ...
Meeting Document : WG-EMM-10/P09 : Autor(es): T. Klevjer, G.A. Tarling and S. Fielding
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Potential climate change effects on the habitat of Antarctic krill
Abstract: Antarctic krill is an obligate cold water species, an increasingly important fishery ... used a statistical model linking Antarctic krill growth to temperature and chlorophyll concentration to ... assess the influence of projected warming on Antarctic krill habitat quality. The results divide the ... sites on South Georgia could be up to 55%, and the habitat’s ability to support Antarctic krill biomass ...
Meeting Document : WG-EMM-13/20 : Autor(es): S.L. Hill, T. Phillips and A. Atkinson (United Kingdom)
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Simulating nursery areas for Antarctic krill along the western Antarctic Peninsula with relevance for the Domain 1 MPA Planning process
Abstract: Antarctic krill (Euphausia superba) is a key species and a dominant grazer in the ... early larval stages of Antarctic krill (the descent-ascent cycle) is largely controlled by temperature ... favorable nursery areas for Antarctic krill and assess how environmental conditions (stronger winds ... , temperature-dependent model of the descent-ascent cycle of Antarctic krill embryos and larvae that was forced ...
Meeting Document : SC-CAMLR-XXXVI/BG/12 : Autor(es): Delegations of Argentina and Chile