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Distribution and relative abundance of Antarctic toothfish (Dissostichus mawsoni) on the Ross Sea shelf
, with some evidence for an ontogenetic migration from east to west as they grow. From the fisheries data ... Paper Title: Distribution and relative abundance of Antarctic toothfish (Dissostichus mawsoni) on ... relative abundance of Antarctic toothfish (Dissostichus mawsoni) on the Ross Sea shelf (defined here as the ... continental shelf out to the edge of the shelf break at about 600–800 m depth). The focus is on D. mawsoni ... for all years up to, and includ- ing, the 2007/08 fishing year. The observer data used in this report ... 88.2 for all years up to, and including, the 2007/08 fishing year. Data error checking and grooming ... caught in each of the three grounds, for years where more than 10 sets were completed, is shown by year ... between years on catch per 24-hour set, so the use of a single year to illustrate trends is of limited ...
Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 33–51 : Autor(es): Hanchet, S.M., S. Mormede and A. Dunn
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Analysis of variability of krill size and fish by-catch in the Japanese krill fishery based on scientific observer data
Bayesian model. For both krill length and by-catch fish number, vessel sample size shows marked effects on ... fishery based on scientific observer data Abstract / Description: To estimate the optimal relative sample ... size of scientific observer data collected on Antarctic krill commercial fishing vessels, the ... and haul) based on a state–space model, separating biological process error in the population dynamics ... . However, extending the time on board leads to an increased financial cost for sci- entific observer ... ) have an on-board scientific observer on all vessels on at least one cruise each year, and (iii ... th (m m ) 60 50 40 30 20 (a) Adult size in Subarea 48.1 Overall trend Year E st im at ... Year E st im at ed m ea n le ng th (m m ) 60 50 40 30 20 (c) Adult size in Subarea ...
Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 31–47 : Autor(es): Okuda, T. and M. Kiyota
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Informing the Working Group on Fish Stock Assessment about the revisions of the WSMPA proposal
and the EU has submitted a revised CM proposal to CCAMLR 2018. This document is based on similar ... documents submitted to WG SAM 2018 and the CCAMLR Workshop on Spatial Management (WS-SM-18). It intends to ... : Unifying the previously two separate WSMPA parts into one coherent WSMPA by closing the gap on the eastern ... effects of harvesting on Antarctic marine living resources and for achieving the WSMPA specific objectives ...
Meeting Document : WG-FSA-18/08 Rev. 1 : Autor(es): S. Hain, K. Teschke, H. Pehlke and T. Brey on behalf of the German Weddell Sea MPA project team
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On the intensity of sampling krill trawl catches
Paper Title: On the intensity of sampling krill trawl catches Abstract / Description: This paper ... uses actual krill length-frequency data in an attempt to address the problem of the determination of ... . The possible effect of two other factors (within-trawl variability and sample decomposition) which may ... efficiency of measurement, it is proposed that length measurements made on commercial krill catches should be ... conjunction with the need to collect information on maturity stages; • for most purposes a minimum sample ... variance was calculated from the combined error mean squares for length at the two islands derived by the ... most suited for the detection of a 2 mm difference in mean length between the two areas. A similar ... length are analyzed (see Appendix 1 (B) for details of analytical procedures) for the two areas ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 29–48 : Autor(es): Miller, D.G.M.
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Effects of orientation on acoustic scattering from Antarctic krill at 120 kHz
collected per animal. Orientation data were recorded on video. The acoustic data were analyzed and target ... strengths determined from each echo. A method was developed for estimating the three-dimensional orientation ... of the krill based on the video images and was applied to five of them, giving their target strengths ... as functions of orientation. Scattering models based on a simplified distorted-wave Born ...
Meeting Document : WG-EMM-99/42 : Autor(es): D.E. McGehee (USA), R.L. O’Driscoll (New Zealand) and L.V. Martin Traykovski (USA)
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WG-FSA-2019
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Meeting
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A perspective on steepness, reference points, and stock assessment
Abstract: We provide a perspective on steepness, reference points for fishery management, and ... construct a prior for steepness. Ways out of the difficult situation raised by fixing steepness and life ... these patterns. For the production model, we derive explicit relationships for steepness and life ... history parameters and then for steepness and major reference points. For the age-structured model, we are ...
Meeting Document : WG-FSA-14/P05 : Autor(es): M. Mangel, A.D. MacCall, J. Brodziak, E.J. Dick, R.E. Forrest, R. Pourzand and S. Ralston
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Informe de Pesquería 2016:Dissostichus spp. Pesquería exploratoria en la División 58.4.2
hasta el 30 de noviembre de 2015). Informe de Pesquería 2016:Dissostichus spp. Pesquería ... (toneladas) D. mawsoni D. eleginoides Total 2004 500 20 0 20 197 2005 780 125 1 126 86 2006 780 163 ... de 1801 ejemplares de D. mawsoni y 30 ejemplares de D. eleginoides en la División 58.4.2 (Tablas 3a y 3b ... -2014) o cuando se marcan menos de 30 peces (desde 2015)(*). - indica que no se marcaron peces ... Description / Abstract: Fishery Report 2016: Exploratory fishery for Dissostichus spp. in ...
Document : Site Section: Publications
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Page not found spanish
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Page : Site Section: The Organisation
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Preliminary results of the experiments on the krill transport study in the South Orkney area (April 1992)
based on these values. In the.first two dublicates the aggregation of krill was observed within the ... within the square of 30 x 30 miles northwestwards of Coronation Island in the fishing fleet operation ... dublicates of perimeter were made. Control hauls with midwater trawl were made on the regular basis. The ... water flow and geostrophic currents. The balance of krill input and output for the square was calculated ...
Meeting Document : WG-CEMP-92/34 : Autor(es): L.G. Maklygin, V.N. Shnar, A.P. Malyshko (Russian Federation) and A.G. Shepelev (Ukraine)