Résultats de la recherche

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

   examined, one with the population at 30% of average pre-exploitation biomass, and the other at 5%. GNAI is ... Bertalanffy K = 0.12 year! Von Bertalanffy Woo = 2500 grams Age at first fishing = 5 years (knife-edge) Age ... at first spawning = 5 years (knife-edge) Pooled age-class = 20 years Higher yielding stock ... LI ______ -L ____ ~-L ______ -L ______ -L ______ ~ ______ J_ ______ J_ ____ ~ o 5 10 15 Year 20 ...

   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. A possible framework in which to consider plausible models of the Antarctic marine ecosystem for evaluating krill management procedures

   . , , , 1 ( , , ) nS s p s p s p s p p C a g t A Fv E N == ∑ (5) In the absence of models which ... density-depend- ent responses, i.e. relative to a maximum energy intake, then Equation 5 could be modifi ... are simulated could impact on the function of that system. Figure 5 illustrates some of the ... -CAMLR- SSP/5), Part I. CCAMLR, Hobart, Australia: 1–108. CCAMLR. 1991. Report of the Tenth Meeting of ...

   Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 99–117 : Auteur(s): Constable, A.J

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

   .ii =0) t and at i =J j all values of A ('Zz,j) are practically zero, so from (4) we obtain: (5 ... . Thus, passing from c. to relative error d=E/f, from (5) - (8) we obtain the following relationships ... ). Moreover, from the f~g.1 it is clea~ that ~eiatiiBhip 5 = frtp or(which is the same) 0'= 'fr ~ V-Iftjl/t ... the graph of equation .5 .. 0.15 tj3 Figure 1 Figura 1 PHCYHOK 1 - 228 - SC-CAMLR-Vr/BG ...

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

4. The foraging range of Adélie penguins – implications for CEMP and interactions with the krill fishery

   ~ A e p 6 M ) 11 1 7 5 " ~ . ~ . ( ~ O p e Pocc~). ~ A H ~ B A H ~ I A f l e n ~ , K o p M H B K ... . crystalloropkias ("10 1 1 -9 13 - 42 5 7 30 4-9 Adelie penguins were tracked from Petrel Island during ... colony (Kooyman and Mullins, 1990). Krill Mush ("/.l 5 - 21 8 6 7 - 39 Penguins rearing ... Range in Relation to the Krill Fishery Fish ("/.l 8 - 59 5 - 32 31 3 l 47 - 76 The ...

   Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 75–87 : Auteur(s): Kerry, K.R., J.R. Clarke, S. Eberhard, H. Gardner, R.M. Lawless, S. Corsolini, S. Focardi, E. Franchi, D. Rodary and R. Thomson

5. Distribution of krill (Euphausia superba Dana) catches in the South Shetlands and South Orkneys

   297 ~ 00 ~5 5" W :>0 y.5 S" w -r- 5'\ 59 bo bO (,t bl os 'J' \ 00 ~b~ (,:z I ... \.- ~ ) . ) ( & JL (~J , ~.- . . . . (,'5 (,0 S'S' 50 '1-5 Figure 1: Map showing the study area in the south ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 287–303 : Auteur(s): Agnew, D.J.

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

   . Variance Number of Sam )lin~ Dates Component 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 10.298 13 6 4 3 3 2 2 ... 2 2 2 2 2 2 2 2 7.3750 19 8 5 4 3 3 2 2 2 2 2 2 2 2 2 3.2674 60 22 13 8 6 5 4 4 3 3 3 3 2 2 2 ...

   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

7. Statistical problems in krill stock hydroacoustic assessments

   aggregation observed in 1981 covered an area 3 km by 5-6 km and extended from the surface to 250 m (Figure 1 ... IS.'> ::'~:. ,.~ ",. - GIBBS IS. o BRIAN IS. 56°W 30' 55° CLARENCE IS. MARCH 1981 5-250m ... 30' 30' MARCH 1984 5-160 m 30' 54° 54° 54° 15' 30' 45' 30' (a) (b ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 301–309 : Auteur(s): Macaulay, M.C.

8. Estimates of circumpolar abundance of Antarctic krill based on recent acoustic density measurements

   to the boundaries of the CCAMLR statistical area. For example, region 5 (Peninsula) was bounded by ... as mean for Pacific. Re 'on (Numbers in?rackets refer to digitised map sections) Peninsula (5 ... lower figures are probably more realistic. % of Area Containing Krill* 45 13 34 53 0 5 3 41 ... 100-500 million tonnes per year (a factor of 5). An earlier combination of estimates of secondary ...

   Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 87–99 : Auteur(s): Nicol, S., A.J. Constable and T. Pauly

9. Small scale krill surveys: simulations based on observed euphausiid distributions

   Cpe.l1HeH nJIOTHOCTH, H 5.IBJI5.leTC5.I HaHMeHbIIIHM, KOr.l1a CXeMa CbeMKH HCnOJIb3yeT napaJIJIeJIbHbIe ... rotation) respectively. 12 11 10 9 8 7 l? 6 5 4 3 2 1 0 0 El Straight ... transects • Radial transects 1 •• .a •• El 2 • • •• El • 3 . 4 5 6 7 8 9 10 mean ... • 1.6 • • 1.4 El G El 1.2 • • 1.0 0.8 0 1 2 3 El •• • El 4 5 6 mean density El ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 245–256 : Auteur(s): Agnew, D.J. and S. Nicol

10. Management and uncertainty: the example of South Georgia

    exploitation, perhaps F=0.05, could be sustained with a recruitment around that of the 1970's i.e. around 5 ... (e.g. 10 million) - giving a Y/R of 500 to 800 gms, and a total yield of 5-8 thousand tons. It might ... also be hoped that recovery would be quicker, perhaps taking only 5 years. The more pessimistic ... 2,500 Duration of closure 5 years 10 years 20 years Transitional yields (next 10 years) 25-:40,000 ...

    Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 341-353 : Auteur(s): Gulland, J.A.

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