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TOWARDS THE BALANCED STOCK ASSESSMENT OF ANTARCTIC TOOTHFISH IN THE ROSS SEA
of features aiming at consistent assessment using real (that is usually noisy and containing outliers ... Abstract: Last two years two different approaches were used for stock assessment of Antarctic ... toothfish in the Ross Sea. One of them, the CASAL model, (Dunn & Hanchet, 2007; Bull et al., 2007) is ... mostly based on likelihoods and potentially could insure proper mutual weighting of signals from all ...
Meeting Document : WG-SAM-08/08 : Автор(ы): D. Vasilyev and K. Shust (Russia)
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Report of vulnerable marine ecosystems in South Georgia Islands (CCAMLR Subarea 48.3) through research dredge sampling
Abstract: In this contribution we report the presence of 6 vulnerable marine ecosystems (VME ... Institute of Fishery Research and Development (INIDEP) and the Argentine Antarctic Institute (IAA) during ... April-May of 2013. VMEs were established from the finding of high densities of indicator taxa through a ... the biomass and were primarily responsible of reaching the proposed threshold of 10kg/1200 m 2 but ...
Meeting Document : WG-FSA-13/58 : Автор(ы): E. Gaitán, L. Schejter, D. Giberto, M. Escolar and C. Bremec (Argentina)
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Method of age determination for Antarctic toothfish (Dissostichus mawsoni)
. All in all 6009 specimens of toothfish were aged using the same above described method. Otoliths were ... collected by Russian observers aboard longline vessels at the Ross Sea during 2002-2007 seasons. We consider ... , A.F. Petrov and V.A. Bizikov (Russia) Title: Method of age determination for Antarctic toothfish ...
Meeting Document : WG-SAM-12/18 : Автор(ы): E.N. Kyznetsova, A.F. Petrov and V.A. Bizikov (Russia)
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The structure and spatial distribution of Antarctic krill aggregations from acoustic observation in the South Georgia area
parts of South Georgia area. The boundary between two areas is located at about 37°30/ W. It is shown ... Abstract: Results of acoustic surveys carried out in winter months of 2000 and 2002 demonstrate ... significant distinctions in spatial distribution patterns of krill in the northwestern and the northeastern ... that in winter months in the northwestern part where foraging areas of dependent predators are located ...
Meeting Document : WG-EMM-04/66 Rev. 1 : Автор(ы): S.M. Kasatkina (Russia)
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Database of CCAMLR working documents
database is subject to the rules for access and use of CCAMLR data. At the time of writing, a total of 3824 ... documents contain major contributions to the work of CCAMLR and provide an important record of the history ... of scientific, political and administrative developments. While readily accessible within the ... examine the feasibility of creating a database of CCAMLR working documents that could be indexed by ...
Meeting Document : WG-EMM-02/8 : Автор(ы): Secretariat
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PROPOSED APPROACH FOR THE IDENTIFICATION OF IMPORTANT MARINE AREAS FOR CONSERVATION: USING ‘MARXAN’ SOFTWARE TO SUPPORT SYSTEMATIC CONSERVATION PLANNING
Abstract: We provide a worked example of how a systematic conservation planning methodology ... (Margules & Pressey, 2000) might be used to identify important areas for conservation of biodiversity in ... the pelagic environment, using Subarea 48.2 (South Orkney Islands) as a pilot study area. The aim of ... the worked example is not to identify areas for protection or management at this stage, but rather to ...
Meeting Document : WG-EMM-08/49 : Автор(ы): S.M. Grant, J. Tratalos and P.N. Trathan (United Kingdom)
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ESTIMATING THE SWEPT AREA OF DEMERSAL LONGLINES BASED ON IN-SITU VIDEO FOOTAGE
, the section of line visible to the camera swept sideways, interacting with sessile benthic organisms ... before leaving the seafloor. Based on an estimate of the rate of sideways movement, the total time ... sideways movement occurred before the line lifted off the seafloor, the total length of the line and the ... total time to retrieve the line, we estimate that up to 0.122 km2 of seafloor was swept by the line ...
Meeting Document : WG-FSA-08/58 : Автор(ы): D. Welsford and R. Kilpatrick (Australia)
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Laboratory target strength measurements of free swimming Antarctic krill (Euphausia superba)
Abstract: Target strength measurements of free swimming krill at 120kHz were made using a single ... were calculated indirectly by deconvolution of the cumulative probability function of echo ensembles of ... evaluate the effects of varying the ratio of largest to smallest echo amplitudes for a given ensemble, thus ... enabling the estimation of threshold induced bias in the target strength estimates. The threshold induced ...
Meeting Document : WG-EMM-97/75 : Автор(ы): Pauly, T., Penrose, J.D.
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Biological acoustic survey in the marginal ice edge zone of the Bellingshausen Sea
Abstract: An acoustic survey at 38 and 120 kHz was carried out from RRS Discovery in the ... Bellingshausen Sea from 23 November to 7 December 1992 as part of the UK Joint Global Ocean Flux Study (JGOFS ... ) Southern Ocean investigations (TuRNER and OWENS, 1995). A total of 285 targets were identified and ... described from the chart record of the echo sounder. Mean Volume Backscattering Strength data were collected ...
Meeting Document : WG-Krill-94/32 : Автор(ы): A.W.A. Murray, J.L. Watkins and D.G. Bone (United Kingdom)
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Report on the results of exploratory research fishing for crabs in Subarea 48.2 on board FV Tamango in the 2009/10 season
concentrations of king crabs were encountered in the area adjacent to CCAMLR area, on the North Scotia Ridge, at ... Abstract: Exploratory research voyage of F/V 'TAMANGO' proceeded from March, 23 to May ... revealed no commercial concentrations of crabs on the South Orkney Islands shelf. However, commercial ... , three species of king crabs were found on the Patagonian shelf: Lithodes santolla, Paralomis ...
Meeting Document : WG-SAM-11/19 : Автор(ы): V.A. Bizikov and S.E. Anosov (Russia)
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