Résultats de la recherche

1. Refinements to the strategy for managing depleted fish stocks based on CCAMLR objectives

   on the marine ecosystem and of the effects of environmental changes, with the aim of making possible ... associated activities in the area to which this Convention applies shall be conducted in accordance with the ... provisions of this Convention and with the following principles of conservation: (a) prevention of ... minimum population level posited to ensure stable recruitment is equated with GNAI. (3) The effects of ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 467–475 : Auteur(s): de la Mare, W.K. and A. Constable

2. Large-scale peculiarities of phytocenosis species composition in the surface layer in the Antarctic Atlantic and Indian Ocean sectors

   samples (layer between 0 and 1 m) taken with a sampler towed by RV Professor Vize, Corethron criophilus ... (Bibik et ai, 1988). In association with it a new change in the community was manifested by the ... ) taken with a sampler towed by RV Professor Vize, Corethron criophilus dominated over vast areas within ... la periferia sur de la Corriente Circumpolar Antartica. To study plankton over vast areas with ... filtration device with changeable filters (plankton net N 70) fitted to the reception hose made it possible ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II) : 201-214 : Auteur(s): Makarov, R.R. and K.P. Fedorov

3. Survey design to estimate krill abundance during FIBEX

   echosignals or from examination of echocharts with respect to integrator output. 4. The operating frequency ... ; Mackintosh 1973) with the abundance decreasing rapidly some distance from the ice edge. 3.2 Selection of ... coincide with a periodicity in the krill distribution, is eliminated. 4. By taking account of the ... with the supplementary variate; these conditions can be assumed to apply here as density is unlikely ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 253–263 : Auteur(s): Everson, I., I. Hampton and G.M. Jolly

4. Response to Everson (2008)

   krill in the southwest Atlantic has been estimated as 109.4 million tonnes with a standard deviation ... wrong’ with either or both methods, and has implied that since, in his opinion, the MaxEnt approach is ... is) the fault must lie with the MaxEnt approach. The two methods are however quite different ... to the total stratum area. For a single survey stratum, the mean density is determined with the ...

   Science Journal Paper : CCAMLR Science, Volume 15 (CCAMLR Science, Volume 15) : 195–198 : Auteur(s): Brierley, A.S., B.G. Heywood and S.F. Gull

5. Optimization of survey sampling design in the detection of interannual variability and prey size selectivity in the diet of penguins

   . Restrictions have been fixed in accordance with the recommendations of the fourth meeting of WG-CEMP: minimum ... in accordance with the recommendations of the fourth meeting of WG-CEMP: minimum interannual ... of Ad6lie penguins from Bahfa Esperanza was made using a nested ANOV A design with data grouped by ... ), comparison between years results naturally in a new level added at the top. Exact F tests are obtained ... cost associated with each determination of the annual mean results from the sum of costs at the ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 551–559 : Auteur(s): Marschoff, E. and B. Gonzalez

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

   with the help of mathematical statistics and methods of calculus of probabilities. The biomass estimate ... of the survey with respect to the axis of the correlation ellipse and the frequency of transects ... concentration density field and on parameters of the survey itself, have been derived with the help of ... variation serve as field characteristics on which the error depends. The direction of the survey with ... ecological meaning, it is necessary to supply them with ,confidence intervals indicating the limits of ... possible errors with desired probability. Thus, it is important to find out on whioh parameters of survey ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 213-228 : Auteur(s): Kizner, Z.I.

7. The sensitivity of multiple output statistics to input parameters in a krill–predator–fishery ecosystem dynamics model

   productivity, health, resilience and services. These objectives are also consistent with CCAMLR’s con ... available for download as an [R] package with accompany- ing documentation from http://swfsc.noaa.gov/ aerd ... predator resilience parameters Table 2: Model output statistics, with the relevant text and article ... setting organ- ism abundances consistent with the plausible dynamics and adjusting krill recruitment ...

   Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 97–118 : Auteur(s): Hill, S.L. and J. Matthews

8. Investigations of required sampling regimes for environmental parameters

   monthly mean temperature over two years with a significance α of 0.05 and a power P of 0.8. Sampling wind ... minima would be sufficient to detect a 2 to 3°C change in monthly mean temperature over two years with a ... parameter with a significance level exS 01 and a statistical power of P (= 1-~) ;::: 0.8. This paper ... which the effect is detected), ta[v] and t2(1-P)[v] are obtained from a two-tailed t table with v ... associated with the regular passage of depressions around the Antarctic continent. Yearly cycles are those ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 561–573 : Auteur(s): Agnew, D.J.

9. Distribution and size of Antarctic krill (Euphausia superba Dana) in Polish commercial catches taken in the Atlantic sector of the Southern Ocean from 1997 to 1999

   summer from 1997 to 1999. The density of concentrations varied with area and season. The densest ... 1999. The density of concentrations varied with area and season. The densest concentrations were ... krill in Polish commercial catches, 1997–1999 Most of the works cited above have dealt with a limited ... the ship’s log were used to determine krill distribution. A WP/42+42/94 x 4 pelagic trawl with 20 mm ... between February and April (this period varied with year), and then in the South Shetlands area (i.e ...

   Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 83–105 : Auteur(s): Jackowski, E

10. Alternative methods for determining subarea or local area catch limits for krill in Statistical Area 48

    requires CCAMLR'S Scientific Committee to provide the Commission with advice on how the 1.5 million tonne ... associated with initial implementation of an alternative are not considered (3) Reliability of the ... costs associated with data collection. The management scheme is not 241 complex and is easy to ... adverse impacts on the fishery (e.g., shorter fishing seasons during years with increased ice cover). The ...

    Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 237–249 : Auteur(s): Watters, G. and R.P. Hewitt

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