Search results
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Bias in acoustic biomass estimates of Euphausia superba Dana to diel vertical migration
Abstract: The diel vertical migration of Antarctic krill (Euphausia superba) can greatly bias the ... sonar and independent of the time of day. To demonstrate and quantify these negative biases on both the ... study was collected in the vicinity of Elephant Island, Antarctica during the Austral Summer of 1992 ... . The data includes five surveys conducted from mid-January to mid March. The first and fourth surveys ...
Meeting Document : WG-KRILL-93/48 : Author(s): D.A. Demer and R.P. Hewitt (USA)
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Catch Documentation Scheme (CDS)
CCAMLR implements a range of measures to support the conservation and management of Antarctic ... marine living resources. These measures seek to minimise the impact harvesting activities may have on the ... sustainability of target species, on species taken incidentally as by-catch and on the marine ecosystems. CCAMLR ... and compliance tools, including the Catch Documentation Scheme (CDS) for Dissostichus spp. (toothfish ...
Page : Site Section: Compliance
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CEMP Fund cameras and satellite transmitter projects in areas of Ukraine responsibility: state and preliminary results
Abstract: Ukraine is responsible for support and providing the CEMP Fund cameras and satellite ... transmitter projects in gentoo and Adelie penguin colonies at the Galindez, Petermann, and Yalour Islands. The ... activity in the Ukrainian Vernadsky Antarctic Station area on service of CEMP cameras and installation ... ARGOS satellite tags in penguin colonies as part of the CEMP projects run by USA, Argentina, Poland and ...
Meeting Document : SC-CAMLR-XXXVI/BG/34 : Author(s): D. Lutsenko, G. Milinevsky, O. Savitsky, A. Simon, I. Dykyy, M. Telipska, V. Lytvynov and L. Pshenichnov
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Multinational large-scale krill synoptic survey in CCAMLR Area 48 in 2019 – survey plan and protocol for consideration by SG-ASAM 2018
Abstract: The objective for the Multinational Large-Scale Krill Synoptic Survey in CCAMLR area 48 ... in 2019 is to provide an updated estimate of the biomass of Antarctic krill (Euphausia superba) used ... in models to estimate sustainable yield. The planned survey follows, as close as possible, the design ... of the CCAMLR 2000 survey, that was undertaken in the year 2000. The basis for comparisons will ...
Meeting Document : SG-ASAM-18/07 : Author(s): B.A. Krafft, O.A. Bergstad, T. Knutsen, G. Skaret and G. Macauley
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MODELING PREDATION BY TRANSIENT LEOPARD SEALS FOR AN ECOSYSTEM-BASED MANAGEMENT OF SOUTHERN OCEAN FISHERIES
Abstract: Correctly quantifying the impacts of rare apex marine predators is essential to ... species and their dependent predators. This requires modelling the uncertainty in such processes as ... prey vulnerability. We combined these uncertainties to evaluate the predatory impact of transient ... assess the implications for an ecosystem-based management. The mesopredators are highly dependent on ...
Meeting Document : WG-EMM-09/P08 : Author(s): J. Forcada, D. Malone, J.A. Royle and I.J. Staniland
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Seabird research at Cape Shirreff, Livingston Island, Antarctica, 2004/05
Abstract: The eighth complete consecutive season of data collection at Cape Shirreff has enabled ... diet, and foraging behaviour. The chinstrap breeding population at Cape Shirreff has continued to ... decline over the past six years, and is at its lowest size in the past eight years of study, and fledging ... success was poor compared to earlier years of study. The gentoo breeding population, in contrast, has ...
Meeting Document : WG-EMM-05/9 : Author(s): A.K. Miller, E. Leung and W.Z. Trivelpiece (USA)
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Krill stock evaluation with data from commercial fishing vessels
. The use of such vessels as platforms for survey transects under scientific supervision has already ... board during normal fishing operations in a relatively easy and cheap manner using the Norwegian vessel ... ‘Saga Sea’ in 2011 as example. A one-month subset of the acoustic data from February/March was processed ... within a time-frame of a week and linked to krill length data from the same period. The data from the ...
Meeting Document : WG-EMM-12/63 : Author(s): G. Skaret (Norway), J. Moir Clark (United Kingdom), O.R. Godø, R.J. Korneliussen, T. Knutsen, B.A. Krafft and S.A. Iversen
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Predation on cephalopods by Pygoscelis papua and Arctocephalus gazella at South Orkney Islands
Abstract: The cephalopod diet of the Gentoo penguin, Pygoscelis papua and the Antarctic fur seal ... samples were collected by the water off-loading method from Gentoo penguins during the autumns of 1993 ... % of the samples. Lower beaks identified belonged exclusively to the squid Psychroteuthis glacialis ... . The mean lower rostral length (LRL) of these beaks was 1.1 mm (range 0.4- 1.8 mm). From the Antarctic ...
Meeting Document : WG-EMM-04/68 : Author(s): M.M. Libertelli, G.A. Daneri (Argentina), U. Piatkowski (Germany), N.R. Coria and A.R. Carlini (Argentina)
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Soviet krill fishery in 1977–1992, Part 1. Distribution, fishing effort, interannual situation patterns
Abstract: The data on Soviet krill fishery in i977-1992 are presented. The fishing effort (FE ... ) developed in 1977-1991 was 50086 fishing days in total. According to the pictures presented FE was ... distributed between subareas 48.1, 48.2 and 48.3. Monthly FE distribution between subareas revealed the three ... : FE was developed mostly in subarea 48.2, since 1985 the role of 48.3 is increasing. Type III: 1987 ...
Meeting Document : WG-EMM-01/57 : Author(s): F.F. Litvinov, V.A. Sushin, G.A. Chernega and O.A. Berezhinskiy (Russia)
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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 : Author(s): Tarling, G., Watkins, J., Quetin, L., Reiss, C., Atkinson, A., Ross, R., Pakhomov, E., Kawaguchi, S., Nicol, S., Siegel, V.