Résultats de la recherche

1. Detection and quantitative estimation of krill concentrations by hydroacoustic instruments

   2.107 L 1----. .1- _______ . __ .... __ . ___ _ 30 35 'ID so Figure 1 60 70 80 90 tDO ·120 ISO ... transmitter frequency. Thus, echo sounders operating at comparatively low frequencies (20-30 kHz) are much ... towed antennae is their ease of calibration in the sea - an especially important feature for echo ... desirable that the range of detection for an individual krill should be extended to the limit possible ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 123-139 : Auteur(s): Yudanov, K.I.

2. A characterisation of the toothfish fishery in Subareas 88.1 and 88.2 from 1997–98 to 2014–15

   three years. The strong mode of smaller (90–120 cm TL) toothfish present in the Slope fishery from 2010 ... fishery were stable in the North up until 2014, then showed a decrease in mode, particularly for males (to ... similar to that in the early period of the fishery – the reason for this is unclear. There has been a ... slight reduction in mean age in SSRU 88.2H, but the data are very uncertain due to the paucity of otolith ...

   Meeting Document : WG-FSA-15/36 : Auteur(s): K. Large, S.M. Hanchet and S. Mormede (New Zealand)

3. Investigation of the sensitivity of the Ross Sea toothfish assessment to withholding subsets of the available data

   the effect of not updating an assessment every year, and also the evolution of stock assessments with ... model outputs of withholding from a stock assessment between one and eight years of age frequency and/or ... very sensitive to changes in years of tag release and recapture data available to the model. For ... CCAMLR areas using integrated statistical catch-at-age stock assessment models. These models were ...

   Meeting Document : WG-SAM-11/17 : Auteur(s): S. Mormede (New Zealand)

4. A quantified Bayesian Maximum Entropy estimate of Antarctic krill abundance across the Scotia Sea and in small-scale management units from the CCAMLR-2000 Survey

   area. Density values for the unsurveyed off-transect portions of the survey area were inferred, and ... thus values for total biomass across the survey area, and within individual small-scale management ... estimated due to the sparseness of data in these regions. The MaxEnt formalism allows an objective choice of ... the parameters of the estimation method, and hence an objective choice of the most probable ... et al. 100 and Sibisi, 1990; Gull and Skilling, 1991; Skilling, 1991; see Sivia, 1996 for an ... which expresses a preference for smoothness (since an equal distribution of krill across all cells has ... particular application of the MaxEnt method. In astrophysics, for example, the data from an instru- ment may ... simply an approximation to a Gaussian point spread func- tion. It is necessary to choose a width for ...

   Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 97–116 : Auteur(s): Heywood, B.G., A.S. Brierley and S.F. Gull

5. Modifications to the Generalised Yield Model in 2004, version GYM501E.EXE

   fish at the nominated ‘recruitment age’ (age 4 for toothfish) in each year. The first year in the time ... recruitment age and greater. This calculation needed to be made general to allow for many years younger than ... . This was coded specifically for the case of surveys observing fish of ages one year younger than the ... of reviewing the methods for estimating the time series of recruitments of D. elegionoides for WG-FSA ...

   Meeting Document : WG-FSA-04/91 : Auteur(s): A.J. Constable (Australia)

6. e-cc-xxxi-a6.pdf

   ... addition, the vessel achieved an overall tag overlap of about 70% for the year. South Africa undertook to ... an analysis for the past two years of landings by toothfish vessels and port inspection frequency ... have implications for search and rescue in the event of an accident at sea. SCIC appealed to Members ... Secretariat reported on the request from Singapore for the reinstatement of its status as an NCP cooperating application/pdf attached to:SCIC-12

   Meeting Report : SCIC-12

7. WG-FSA-92

   design for Subarea 48.1 G. Watters (USA) WG-FSA-92/08 Length-age composition of the Patagonian toothfish ... Rev. 1 An iterative model to construct an age-length key to assess the age composition of a new ... documents Doc Number Title WG-FSA-92/01 Provisional Agenda for the 1992 Meeting of the Working Group on Fish ... AtlantNIRO I.A. Trunov (Russia) WG-FSA-92/05 Collected data and stock assessment results for Notothenia ...

   Meeting

8. Otolith and body size relationships in the mackerel icefish (Champsocephalus gunnari)

   regression model allowing for parallel lines for each year (F4.846 = 30.57, p < 0.001); including extra ... parameters for separate slopes for each year did not give a statistically significant improvement to the ... parallel lines for each year (F4889 = 36.7, p < 0.001); including extra parameters for separate slopes ... for each year did not give a statistically significant improvement to the fit (F4.889 = 1.85, p ...

   Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 117–123 : Auteur(s): Everson, I., B. Bendall and A. Murray

9. WG-EMM-15

   Federation WG-EMM-15/30 Krill Fishery Report CCAMLR Secretariat WG-EMM-15/31 Citizen science for large-scale ... sections for age determination C. Reiss (USA), R. Kilada (Canada) and S. Kawaguchi (Australia) WG-EMM-15/46 ... alternative decision rules for FAO Subarea 48.1 using an integrated assessment model D. Kinzey, G.M. Watters ... . Gardner and D.J. LeRoi WG-EMM-15/P07 Selectivity and two biomass measures in an age-based assessment of ...

   Meeting

10. Volume 8: CCAMLR. 1996. Statistical Bulletin, Vol. 8 (1986–1995). CCAMLR, Hobart, Australia.

    annual period used is the split-year 1 July to 30 June. Split-years are shown for instance as 1989/90 ... ) PLATAFORMA DE HIELO 200m IOOOm 25' E 30' 40' 50' 60' . 70' 80' 90' E 40' Spa:::::5I.:::=JIII!IIC:=II ... tonnes have been caught in any year were chosen for this section. 2.2 Tables 3, 4 and 5 report ... , reporting of the data described in paragraph 1.10 has not been required for all areas and years. Reporting ...

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