Resultados de la búsqueda
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Distribution of krill (Euphausia superba Dana) catches in the South Shetlands and South Orkneys
the literature are used to show that for some years, at distances of between 20 and 60 km from ... Abstract: Zones of 20 km width are defined around selected colonies of penguins distributed ... to have a consistent pattern in Subarea 48.1 but an unpredictable distribution in Subarea 48.2 ... December to March was taken within 40 km of the coast, and 90% within 80 km in all years 1988-1990. In 1987 ...
Meeting Document : WG-KRILL-92/19 : Autor(es): D.J. Agnew (Secretariat)
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A RE-ANALYSIS AND UPDATE OF THE ANTARCTIC KRILL BIOMASS IN THE SOUTH SHETLAND ISLANDS, THROUGH 2011
based data show that 2011 was a year of good recruitment, following two years of low recruitment. Krill ... -based estimates of krill density and recruitment are recalculated for the years 1996 through 2011 ... . Recent changes in the acoustic methodology and target strength models are the basis for the recalculation ... . The time series of acoustic biomass indicate that krill have varied by more than an order of magnitude ...
Meeting Document : WG-EMM-11/26 : Autor(es): A. Cossio, C. Reiss and R. Driscoll (USA)
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Annual Report from SCAR to CCAMLR
representative (Keith Reid) on the planning committee. For further details see www.scar.org. SCAR has several ... Brazil. SCAR hopes to continue to explore with CCAMLR areas where the two organisations can work together ... work on climate change communications, which will be a significant activity over the next year. The ... Abstract: This Background Paper reports on the various activities conducted by SCAR that are of ...
Meeting Document : CCAMLR-XXX/BG/15 : Autor(es): Submitted by SCAR
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PRELIMINARY REPORT OF THE NEW ZEALAND RV TANGAROA IPY-CAML SURVEY OF THE ROSS SEA REGION, ANTARCTICA IN FEBRUARY-MARCH 2008
). The 50 day voyage on the research vessel Tangaroa involved an extensive survey of marine organisms ... 30 years, a total of 282 gear deployments were made at 39 sites covering a wide range of habitats ... trawls, seabed cameras, sleds, and corers were deployed in each habitat to obtain samples for a broad ... universities with collaborating scientists from the USA and Italy. Despite some of the worst ice conditions for ...
Meeting Document : WG-EMM-08/18 : Autor(es): S.M. Hanchet, J. Mitchell, D. Bowden, M. Clark, J. Hall, R. O’Driscoll, M. Pinkerton and D. Robertson (New Zealand)
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Marine debris and fishing gear associated with seabirds at Bird Island, South Georgia, 1996/97
records for wandering albatrosses were halved compared to last year. Nevertheless evidence of continued ... seabirds at Bird Island, South Georgia, ingested and regurgitated plastic items were reported for wandering ... albatrosses (three items), grey-headed albatrosses (one item) and white-chinned petrels (two items). Fishing ... found next to nests, six in squid pellets and one internally lodged in an adult) and adult regurgitates ...
Meeting Document : SC-CAMLR-XVI/BG/05 : Autor(es): Delegation of the United Kingdom
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Peculiarities of Euphausia superba size composition in Statistical Subarea 48.2 (South Orkney Islands)
(Table 1), which cover 20-years period (from 1965 to 1985). Data on size composition of E.superba for ... adolescent and adult E-superba. This phenomenon is mope complicated for the Scotia Sea due to two reasons ... each survey are showed on reparate maps (Fig. l-14). Consideration of age of animals is outside of ... attention, and we operate here only by modal groups, which valuated on the maxima on cures of size ...
Meeting Document : WG-KRILL-91/11 : Autor(es): V.I. Latogursky and R.R. Makarov (USSR)
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Dietary composition of juvenile Dissostichus eleginoides (Pisces, Nototheniidae) around Shag Rocks and South Georgia, Antarctica.
ranges of 30–70 cm (TL). Fish was by far the main food on the shelves of Shag Rocks and South Georgia ... , accounting for about 70% of prey. Krill appeared as secondary food, although its importance was overestimated ... depended on their local abundance. The large proportion of fish exhibiting stomachs full or close to ... fullness (together 62%) suggests that feeding intensity of the species was high. Author(s): Casaux, R ...
Meeting Document : WG-FSA-05/P6 : Autor(es): Casaux, R., Barrera-Oro, E.R., Marschoff, E.R.
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Ecosystem conservation and the race to krill
the requirements of Article II of the Convention. To meet these requirements ASOC seeks key ... procedures, requiring 100% scientific observer coverage on board krill vessels, and implementing further ... colonies in Subarea 48.1. This is of particular relevance since fishing has in recent years been ... Status: Content Approved Document Release Consent: Yes Delegation responsibility for releasing ...
Meeting Document : CCAMLR-XXXIV/BG/28 Rev. 1 : Autor(es): Submitted by ASOC
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Krill population trends
concentrated for the last 20 years. There have been suggestions of changes in the distribution and abundance of ... data available for Antarctic krill and will present an indication of the extent and limitations of the ... Antarctic krill, based mainly on analysis of available scientific net data. There is also evidence of ...
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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Statistical problems in krill stock hydroacoustic assessments
Abstract: Two primary issues are at question for hydroacoustic assessments of krill, The first is ... is distributed. The issue of patchy years vs more even distribution would seem to have more impact on ... for deciding what method is most appropriate, this is made even more difficult by the fact that most ... several unsatisfied needs for improvements in sampling design and tests for systematic trends in survey ...
Meeting Document : SC-CAMLR-VII/BG/22 : Autor(es): United States of America