Résultats de la recherche
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On the use of scientific observers on board krill fishing vessels
Abstract: Wide-scale monitoring of the status of Antarctic krill resources had been previously ... the System of International Scientific Observation compulsory in Antarctic krill fisheries. Indeed, a ... widespread introduction of scientific observation on krill fishing vessels can help to ease the existing ... deficit of fishery-independent krill surveys. Author(s): Delegation of Ukraine Title: On the use of ...
Meeting Document : WG-EMM-05/32 : Auteur(s): Delegation of Ukraine
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Summer distribution, abundance and structure of krill populations (Euphausia superba and Euphausia crystallorophias) sampled by plankton net in the western Ross Sea (January–February 2000)
of krill in the western Ross Sea (Antarctica). A midwater sampler-trawl (Hamburg Plankton Net) was ... double oblique tow. Mean relative biomass of Antarctic krill Euphausia superba, in the area north of ... Area (73°S 173°E) was remarkable. Ice krill Euphausia crystallorophias replaced the Antarctic krill in ... krill and length, sex and reproductive stage of Antarctic krill occurring in discrete aggregations were ...
Meeting Document : WG-EMM-00/38 : Auteur(s): M. Azzali, A. Sala and G. Brancato (Italy)
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A RE-APPRAISAL OF THE TOTAL BIOMASS AND ANNUAL PRODUCTION OF ANTARCTIC KRILL
production are still very uncertain. Recently, circumpolar krill databases, combined with growth models and ... standardised net sampling methodology but they integrate over the period 1926-2004, during which krill ... abundance has fluctuated. To estimate krill biomass at the end of last century we combined the KRILLBASE map ... of relative krill density around Antarctica with the most recent, acoustics-derived, value for the ...
Meeting Document : WG-EMM-08/17 : Auteur(s): A. Atkinson (United Kingdom), V. Siegel (Germany), E.A. Pakhomov (South Africa), M.J. Jessopp (United Kingdom) and V. Loeb (USA)
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Results of a hydroacoustic survey of Antarctic krill populations in CCAMLR Division 58.4.1 carried out in January to April 1996
Abstract: In January-March 1996 a hydroacoustic survey for Antarctic krill was conducted in ... CCAMLR Division 58.4.1 for the purposes of estimating overall biomass (B0). The krill biomass in the area ... surveyed (873,000 km2) was estimated to be 6.67 million tonnes with a CV of 27%. Krill were more abundant ... in the west of the survey area 800-1200E than in the 120°-150°E region. The majority of the krill ...
Meeting Document : WG-EMM-96/28 : Auteur(s): Higginbottom, I., de la Mare, W., Pauly, T., Nicol, S.
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REPORT ON TRANSHIPMENT OF KRILL IN 2009
Abstract: Report on transhipment of krill in 2009 Delegation of Japan Abstract: According to the ... Conservation Measure 10-09 (2009), Japan reports on krill transhipment activities by its krill fishing vessel ... submits the attached report on transshipment activities by its krill fishing vessel in CCAMLR Convention ... ): Delegation of Japan Title: REPORT ON TRANSHIPMENT OF KRILL IN 2009 Approval: Approved ...
Meeting Document : CCAMLR-XXIX/BG/05 : Auteur(s): Delegation of Japan
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A RE-ANALYSIS AND UPDATE OF THE ANTARCTIC KRILL BIOMASS IN THE SOUTH SHETLAND ISLANDS, THROUGH 2011
Abstract: Acoustically based estimates of Antarctic krill (Euphausia superba) biomass, and net ... -based estimates of krill density and recruitment are recalculated for the years 1996 through 2011 ... . The time series of acoustic biomass indicate that krill have varied by more than an order of magnitude ... based data show that 2011 was a year of good recruitment, following two years of low recruitment. Krill ...
Meeting Document : WG-EMM-11/26 : Auteur(s): A. Cossio, C. Reiss and R. Driscoll (USA)
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Krill consumption by crabeater seals in CCAMLR Divisions 58.4.1 and 58.4.2
Abstract: As a contribution to the work program of WG-EMM-STAPP to estimate krill consumption by ... predators, this paper presents estimates of krill consumption by crabeater seals off East Antarctica between ... 64ºE-150ºE, which includes all of Division 58.4.1 and part of Division 58.4.2. Krill consumption by ... . This represents approximately 20% of the krill biomass estimated from acoustic surveys. Author(s): C ...
Meeting Document : WG-EMM-16/66 : Auteur(s): C. Southwell, J. Forcada, L. Emmerson, A. Constable, S. Kawaguchi and P. Trathan
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Describing krill: swarms or integration intervals?
Abstract: CCAMLR anticipates that acoustic data collected from krill fishing vessels will be ... incorporated into krill feed back management. Acoustic data collected from fishing vessels may have different ... may contain seabed aliased echoes and instrument cross-talk. Analysing acoustic data on a krill-swarm ... estimated mean areal krill density for a small (65 km by 60 km) survey conducted in the waters off Mawson ...
Meeting Document : SG-ASAM-17/02 : Auteur(s): M.J. Cox
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Are penguins and seals in competition for Antarctic krill at South Georgia?
consumers of Antarctic krill. In recent years the population of fur seals has increased whereas that of ... macaroni penguins has declined. Both species feed on krill of similar size ranges, dive to similar depths ... prevalence of krill in the diet of the two predators differed with less krill in the diet of macaroni ... penguins than Antarctic fur seals in recent years. Krill in the diet of macaroni penguins was significantly ...
Meeting Document : WG-EMM-01/22 : Auteur(s): K.E. Barlow, I.L. Boyd, J.P. Croxall, I.J. Staniland, K. Reid and A.S. Brierley (United Kingdom)
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A revised assessment of the impact of the krill fishery on penguins in the South Shetlands
krill (Euphausia superba) fishery and penguins (WG-Krill-93/7). Main fishing areas were confined to the ... with areas of high krill abundance. The overlap between trawling depth and foraging dive depth of ... penguins was also insignificant. Furthermore, less similarity between krill caught by trawlers and those ... fishery and penguins. Krill biomass was estimated to be as large as 200-1500 xl03 tonnes within the ...
Meeting Document : WG-Joint-94/17 : Auteur(s): T. Ichii, M. Naganobu and T. Ogishima (Japan)