Résultats de la recherche

1. Sensitivity investigation of the SDWBA Antarctic krill target strength model to fatness, material contrast and orientation

   incidence φ is given by: 10 2 10 ( ) 10log ( ) 10log ( ) bs bs TS f ϕ φ σ φ φ = = . (3) In ... . (1998) shapes with increasing fat- ness are presented in Table 3. It must be noted that the shapes do ... 3 al go rit hm . C la ss Pa ra m et er Sy m bo l Pa ck ag e va ria bl e U ni ... m 38 .3 5 · 1 0– 3 D en si ty c on tra st g g0 1. 03 57 2 So un d ...

   Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 97–122 : Auteur(s): Calise, L. and G. Skaret

2. Analyses of acoustic line-transect data from the waters around South Georgia: estimation of krill (Euphausia superba Dana) – biomass

   characterise water mass (Atkinson et al., 1990). 3 . RESULTS AND ANALYSIS 3.1 Analytical Techniques The ... =l (1) (2) 227 where the weights are based on the sample unit length: (3) and the mean ... (Table 3) shows that most of the variation is explained by the chosen strata and that sections within ... semivariogram model produced changes in the density estimate of approximately ± 3 tonnes km-2. 4. DISCUSSION ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 225–243 : Auteur(s): Murphy, E., I. Everson and A. Murray

3. Preliminary analyses of data collected during experimental phases of the 1994/95 and 1995/96 Antarctic crab fishing seasons

   ~arb1 3 ~ a n a 1 rosopxT o TOM, Y T O 661~10 661 H ~ U ~ J I ~ C O O ~ ~ ~ ~ H ~ I M ... AaHHbIM IIO YnOBaM, IIOJIyqeHHbIM B pe3ynbTaTe 3KCIIePMMeHTOB n0 MCTOWeHMH) B XOAe 3 ~ a I I a 2, He ... ~ H n0nyYeHHM 60nee KpYnHbIX ynoBos onpenenmb He yaanocb. B xoae 3 ~ a n a 2 6bmo noMeveHo H ... a 8 0 ~ e BOKPYr TpeTberO KBaApaTa MCTOWeHHX B PaMKaX 3 ~ a n a 2. I Ipennonome~~x MoAenM oTnosa ...

   Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 141–159 : Auteur(s): Watters, G

4. Notes on the use of virtual population analysis for stock assessment of the mackerel icefish, Champsocephalus gunnari (Lönnberg, 1906) in Subarea 48.3 for the 1990/91 and 1991/92 seasons

   +) with that observed during this survey. The samples taken during the survey were dominated by 2 and 3 ... 12 a at a£..J aI (3) ;=1 The application of equation 3 in Parkes (1991) assumed that q was 1 (i.e ... survey indices la, which can be used to re-estimate values of la from equation (3). In running Laurec ... discovery of a small error in the allocation of ages 2 and 3 in the age/length key used previously (Basson ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 49–79 : Auteur(s): Parkes, G.

5. Selectivity of commercial and research trawls in relation to krill

   e n e ~ ~ ~ p y m q ~ e c s o i i c ~ s a Tpana, ~ c n o n h 3 y e ~ o r o Ha 3XOCEeMKaX, no ... speed was 3.5 knots. IKMT Station l 2 3 The IKMT is a midwater trawl with a length of 26.8 ... codend against mechanical wear and tear. The trawl is towed with a single wire. Station 1 2 3 ... length distribution in catches (see Table 3). Krill Length Distribution Calculations showed that the ...

   Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 161–169 : Auteur(s): Kasatkina, S.M

6. Status of the krill stock around Elephant Island in 1991/92 and 1992/93

   ~ ~ K O H O M ~ P H O C T M pacnpeAeneHux Kpmx B p a i o ~ e o - ~ a 3 n e Q a ~ ~ BO BpeMR IoXHOrO ... pacnpeneneme p a l ~ e p ~ b ~ x Knaccos u c~aguf i n o n o ~ o 3 p e n o c ~ ~ KpHnx cornacyeTcs c ... npeAbIAywuMH onHcaaHsMa H npeAcTasnseTcs noBTopaIoquMcs H n p e ~ c ~ a 3 y e ~ b r ~ acneKToM sanaca Kpana B ... 3) and was associated with extremely low krill abundance. It was dominated by small krill with a ...

   Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 7–33 : Auteur(s): Loeb, V. and V. Siegel

7. Characteristics of krill swarms from Prydz Bay

   ) (Butterworth, 1988) mean number density (individuals.m-3) av = lO°.!(vTS) n Ll0°.!SYi * Calculated ... = observed MVBS w = weight (kg) 3. RESULTS The data sequence started at 1558 hours on 18 December and ... modes lie at 3-3.5 and 4.4-4.6 for In(length) and In(BSD) respectively. Basic statistics for these ... 8.0 1n(intercepted swarm Figure 3(a): Log transformed swarm length. ~ 0.15 >Q p-; * fil III ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 177–189 : Auteur(s): Agnew, D.J. and I.R. Higginbottom

8. The Patagonian toothfish (Dissostichus eleginoides) fishery in the Kerguelen Islands (Indian Ocean sector of the Southern Ocean)

   -unit-effort), GLM analysis, CCAMLR 3 Patagonian toothfish fishery in the Kerguelen Islands ... percentages of stages 1–2 (juveniles without developed gonads) and stages 3 to 5 (fish engaged in the annual ... at which 50% of fish are at stages 3 to 5. This calcula- tion was made for the 2003/04 data and for ... maturity stages during the year was studied to determine the spawning period. Mature animals (stages 3 to ...

   Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 1–25 : Auteur(s): Lord, C., G. Duhamel and P. Pruvost

9. Phytoplankton distribution in the mixed layer: implication to krill abundance

   section. Implementation of one-dimensional Lagrangian model is discussed in section 3. The last section ... ( 3 ) where a and ~ are canonical constants and k is the radian wave number. The spectrum shape has ... a sharp cut-off at both the energy containing eddy scale I and the Kolmogorov length scale 'Tl=(V 3 ... Lo=(cN-3)1/2 which is a scale of the largest eddy size in a stratified fluid. Stratification limits ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 331–356 : Auteur(s): Yamazaki, H. and T.R. Osborn

10. A simple approach for calculating the potential yield of krill from biomass survey results

    model for the length of kriU of age (a+t) years may be written: 208 { .e .. [ 1-e -(3(a+ot)] .e ... (a + t) = .e .. [ 1- e-{3(a+l)] O::;t::;l/o (2) Rosenberg et al.'s (op.cit.) fit to data ... also given in Appendix 1. 3. CHOICE OF PARAMETER VALUES The model developed in Appendix 1 has nine ... : M = 0.3; 0.6; 1.0 yi1 O'R = 0.2; 0.4; 1.0 Fixed values a. = 3, ~ = 3 and O's = 0.3 have been ...

    Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 207–217 : Auteur(s): Butterworth, D.S., A.E. Punt and M. Basson

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