Результаты поиска

1. Revised estimates of seabed areas within the 500 m isobath of the South Orkney Islands (subarea 48.2) and consequences for standing stock biomass estimates of nine species of finfish

   Paper Title:  Revised estimates of seabed areas within the 500 m isobath of the South Orkney ... Islands (subarea 48.2) and consequences for standing stock biomass estimates of nine species of finfish ... Abstract / Description:  A revised bathymetric map of the South Orkney Islands (Subarea 48.2) was generated ... , areas of seabed within the 500 m isobath (i.e. 0-500 m) were computed for 50 m depth intervals. Areas ... . These databases were then used to compute bathymetric surface areas of seabed at 50 m intervals within ... range of each particular species. Given the significant increases in estimated seafloor at greater ... REVISED ESTIMATES OF SEABED AREAS WITHIN THE 500 M ISOBATH OF THE SOUTH ORKNEY ISLANDS (SUBAREA 48.2) AND ... CONSEQUENCES FOR STANDING STOCK BIOMASS ESTIMATES OF NINE SPECIES OF FINFISH C.D. Jones National Oceanic ...

   Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 197–204 : Автор(ы): C.D. Jones

2. Report of a meeting of the SCAR group of specialists on marine living resources of the Southern Ocean

   ~ for gene rc.l ci.:Lscussions at. the gov~:rnmenta.l l e vel of problems ·o·r the utiltbzo.tion of the ... hern Ocellr,l i n t he · Unite d S·co.tes in 19"(6. · It f elt th at t he.' mos t us e ful function of ... . In view of the objectives of the meeting~ and the· fact th at a~commodation Cl.t the proposed ... ... _ ' .. . .. REPORT OF A MEETING OF THE SCAR ...

   Document : Site Section: The Organisation

3. The error of the biomass estimate as a function of survey parameters and the statistics of a density field of krill aggregations

   Abstract:  Simple relationships expressing dependence of sampling relative error in biomass ... estimate (by means of a survey) on statistical characteristics of fish concentration density field under ... examination and on parameters of survey itself, have been derived with the help of mathematical statistics and ... methods of calculus of probabilities; biomass estimate is determined as a product of average density for ...

   Meeting Document : SC-CAMLR-VI/BG/39 : Автор(ы): Z.I. Kizner (USSR)

4. Further computations of the consequences of setting the annual krill catch limit to a fixed fraction of the estimate of krill biomass from a survey

   Abstract:  The results of Butterworth et al. (1992) relating potential krill yield to a pre ... -exploitation survey estimate of kril1 biomass are extended to incorporate most of the amendments specified by ... the Third and Fourth Meetings of Working Group on Krill. The most important of these extensions is ... integration over the ranges of uncertainty for a number of the model parameters. Results are provided for the ...

   Meeting Document : WG-KRILL-93/42 : Автор(ы): D.S. Butterworth, G.R. Gluckman, R.B. Thomson and S. Chalis (South Africa)

5. Hydroacoustic observations of the vertical distribution of icefish Champsocephalus gunnari in the western part of the slope of the South Georgia Island in December 1999–January 2000

   Abstract:  The dynamics of daily vertical migrations of icefish Champsocephalus gunnari was ... studied and some quantitative estimates were obtained by results of analysis of more than 150 fragments of ... echograms obtained with the use of an echograph of the "Priboi-101" echo sounder during the ... concentrations of icefish can be considered by the type of the vertical distribution as bottom/pelagic ones, and ...

   Meeting Document : WG-FSA-00/19 : Автор(ы): V.L. Senioukov (Russia)

6. Further computations of the consequences of setting the annual krill catch limit to a fixed fraction of the estimate of krill biomass from a survey

   Abstract:  The results of Butterworth et al. (1991) relating potential krill yield to a pre ... -exploitation survey estimate of krill biomass are extended as specified by the Third Meeting of Working Group ... on Krill. The most important of these extensions is integration over the ranges of uncertainty for a ... number of the model parameters. Results are provided for the probability of spawning biomass falling ...

   Meeting Document : WG-KRILL-92/04 : Автор(ы): D.S. Butterworth, G.R. Gluckman and S. Chalis (South Africa)

7. Integrating CPUE with the GY model: examination of the effects of shortening the CPUE series and incorporating elements of uncertainty into the D. eleginoides assessment of Subarea 48.3

   2003, paragraph 2.27). This paper explores some of the consequences of shortening the dataset in the ... application of the usual assessment method. In addition we investigate the incorporation of uncertainty in the ... standardised CPUE series into the method of Kirkwood and Constable (2000) via Monte Carlo simulations of the ... CPUE series. Truncation of the standardised series from WG-FSA 2002 results in only slight modification ...

   Meeting Document : WG-FSA-03/96 : Автор(ы): I.R. Ball, S. Candy and A.J. Constable (Australia)

8. The utility of satellite remote sensing for identifying the location and size of penguin breeding sites in Antarctica: a review of previous work and specifications of some current satellite sensors

   Abstract:  Broad-scale survey of the abundance of colonial breeding penguins requires locating all ... , or the great majority, of colonies as the first of several survey stages. Given the remoteness of ... . Past evaluations of the utility of satellites for the detection of penguin breeding sites are reviewed ... with respect to the following issues: spectral response of surrounding material, variability in the ...

   Meeting Document : WG-EMM-03/51 : Автор(ы): C. Southwell and L. Meyer (Australia)

9. VME detection thresholds: provision of a beta version of a R library to compute detection probabilities and preliminary results on the case of the sea pens (Pennatulacea) of the CCAMLR Division 58.4.4b

   , the data are reported to the Secretariat to inform the CCAMLR about the potential presence of VME to ... of sea pens (Pennatulacea, NTW, VME bioindicator) in the 58.4.4b sector have been reported during the ... CCAMLR SAM Working Group 2018. However, despite the important level of the catches, no VME detection ... threshold triggering out the establishment of an immediate fishing exclusion zone have been reached. Here ...

   Meeting Document : WG-FSA-2019/46 : Автор(ы): A. Martin and M. Eléaume

10. Testing the performance of a recompiled version of TrawlCI to calculate confidence intervals of abundance in surveys of Patagonian toothfish (Dissostichus eleginoides) and mackerel icefish (Champsocephalus gunnari)

    Abstract:  A version of the confidence interval calculating program TrawlCI was recompiled to ... enable it to be run within the DOS emulator of recent versions of the Microsoft Windows operating system ... . The performance of the recompiled version was compared with that of the original version. The ... recompiled version of TrawlCI produced very similar, though not identical, results to the original version ...

    Meeting Document : WG-FSA-SAM-05/14 : Автор(ы): T.D. Lamb, W.K. de la Mare and A.J. Constable (Australia)

Страницы