Résultats de la recherche

1. A hypothetical life cycle for Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea region

   , almost 30% had moved west on to the continen- tal slope, and almost 30% had moved south on to the Ross ... the floats released at 146 m depth, about 30% were retained in the area of release, about 12% moved ... eggs and larvae are in the surface waters, then modelling suggested that as much as 30% of the eggs ... sector, 30–75 cm long D. mawsoni have been commonly caught by Ukrainian bottom trawl- ers targeting ...

   Science Journal Paper : CCAMLR Science, Volume 15 (CCAMLR Science, Volume 15) : 35–53 : Auteur(s): Hanchet, S.M., G.J. Rickard, J.M. Fenaughty, A. Dunn and M.J. Williams

2. Remarks on the natural mortality of Dissostichus eleginoides in Subarea 48.3

   Table 1: Table 2: Table 3: Tableau 1: Tableau 2: Tableau 3: 30 List of Tables Natural ... , captura total y una submuestra de 30 ejemplares por lance, de los cuales se obtuvo la composicion por ... ' LS - 57°00'LS) yen el Area de las Georgias del Sur. Documento WG-FSA-92/30. CCAMLR, Hobart ... al. (1990) y la recientemente aportada por Aguayo (1992). 2. METODOS Los datos para los ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 21–30 : Auteur(s): Moreno, C.A. and P.S. Rubilar

3. Measurements of differences in the target strength of Antarctic krill (Euphausia superba) swarms at 38 kHz and 120 kHz

   -FIBEX de 1984. Pe310Me Pa3JUflUf5.1 B CHJIe aKycTHlIecKot't: QeJIH B3pOCJIOro (30-60 MM ... -scatter from aggregations of encaged animals which varied in mean length from 30 to 39 mm. Calculated ... ~ Z 30 « o "" ~ ~ 20 Z 10 .' . -I, - A9880 /' 1\ --- A9885 1\ •••• A9891 ... strength of the back-scatter between the same vertical and horizontal limits. 2. MATERIALS AND METHODS ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 75–86 : Auteur(s): Hampton, I.

4. Estimation of krill (Euphausia superba) mortality and production rate in the Antarctic Peninsula region

   C ID ::J 0- ID ~ LL 6 5 4 3 2 1 25 30 35 40 45 50 Total Length (mm) N=12933 ... of juvenile krill of 23 to 30 mm became quite obvious, while 30 to 44 mm medium sized subadults ... frequencies from whale stomachs and found high abundances of 20 to 30 mm juvenile krill. These size groups ... Antarctic Peninsula survey area for different years. 30 • PN87/88 29 oME89/90 28 z27 .E 26 25 ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 159–176 : Auteur(s): Siegel, V.

5. Spatial distribution of management measures, Antarctic krill catch and Southern Ocean bioregions: implications for conservation planning

   58.4.2 A 2 645 000b (Trigger level = 452 000) 30 X X B 0 C 0 D 0 E 40 58.6 Outside NJ X X X X ... with similar distributions across the Convention Area. 0 5 10 15 20 25 30 35 0 2 4 6 8 10 12 ... biore- gion defined on the basis of long-term (up to 30 years) averages of time series (Grant et al ... . 2002. Rigor and Representativeness in Marine Protected Area Design. Coastal Man- agement, 30 (3): 237 ...

   Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 1–19 : Auteur(s): Grant, S.M., S.L. Hill and P.T. Fretwell

6. Significant conservation benefits obtained from the use of a new fishing gear in the Chilean Patagonian toothfish fishery

   Branch lines Anchor ~25–30 kg ~40 m Main line (a) Main line Branch line ‘Net sleeve’ Ø~2–3 cm Ø ... ~70–74 cm Ø~30 cm Ø~10–15 cm ~100–120 cm Hooks Snoods ~20 cm ~15 cm ~25 cm Weight 4–8 kg ... comparing randomly sequenced sets with and without streamer lines (30 sets each). The num- bers of black ... net sleeves at an estimated cost of US$25–30 each. However these net sleeves are durable and can be ...

   Science Journal Paper : CCAMLR Science, Volume 15 (CCAMLR Science, Volume 15) : 79–91 : Auteur(s): Moreno, C.A., R. Castro, L.J. Mújica and P. Reyes

7. A von Bertalanffy growth model for toothfish at Heard Island fitted to length-at-age data and compared to observed growth from mark–recapture studies

   of recap- ture was 1 317 mm. Days-at-liberty ranged from 1 to 2 529, with 898 recaptures occurring ... -segment function 2 ( ) exp 0.0051 0.0494 ; 1030 100 400 1 ; 200 400 200 1 ; 400 1030 0 ; 200 L P L L ... popula- tion of fi sh, by μ(A, θ) so that E(L(Pop)|A) = μ(A, θ) = L∞ (1 – exp{–κ(A – t0)}) (2) and L ... K K−′ = + for j = 2,…,r – 1 and as con- venient endpoints set ( )1 1 2 /2r r r rK K K K ...

   Science Journal Paper : CCAMLR Science, Volume 14 (CCAMLR Science, Volume 14) : 43–66 : Auteur(s): Candy, S.G., A.J. Constable, T. Lamb and R. Williams

8. Age determination of Notothenia gibberifrons from the South Shetland Islands, Antarctic Peninsula subarea (Subarea 48.1)

   35.9 36.4 35.6 35.1 35.3 37.8 26.8 31 (1 ) 30 (2) 26.5 27 38.4 38.8 38.7 38.1 38.4 39.6 29.3 31.4 32.8 ... ~ N 0'= 42 0 8 r ~n N~ = 53 ~ 6 4 z 2 ---- >- 14 16 18 20 22 24 26 28 30 32 34 36 38 u z t4 ... w :::> 12 ~ iO t N cf= 15 0 0::: 8 r B ~ I.L N~ = 22 6 4 2 14 16 18 20 22 24 26 28 30 ... CCAMLR to standardize criteria for studying the age and growth of Antarctic fish. 2. METHODS Samples ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II) : 143-160 : Auteur(s): Barrera-Oro, E.

9. Length-based assessments revisited – why stock status and fishing mortality of long-lived species such as toothfish cannot be inferred from length-frequency data alone

   selectivity functions. 0 10 20 30 40 50 0. 0 0. 2 0. 4 0. 6 0. 8 1. 0 Immature selectivity Age (y ... ) Se le ct iv ity 0 10 20 30 40 50 0. 0 0. 2 0. 4 0. 6 0. 8 1. 0 Truncated mature selectivity ... Age (y) 0 10 20 30 40 50 0. 0 0. 2 0. 4 0. 6 0. 8 1. 0 Mature selectivity Age (y) 2000 2010 ... ) with 0% as a target level or 30–40% where no upper size limit exists. The proportional length-based ...

   Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 57–73 : Auteur(s): Ziegler, P.E., D.C. Welsford and A.J. Constable

10. Choosing distance between acoustic survey tacks

    stock exploitation rate and other factors, we have to estimate the biomass with an error 8B~30 ... , ~ , ~,,~" !,I I6~,\ :::::;::""""-1:~:,~ 30~ ~ <: I:' · .. . I·"'t:':::::"............ --=:z"=~ 20% '= I,' 7 ... processing are given in Figure 2. Errors were random so their absolute values are given. The empirical ... error does not exceed the given values, the average distance between tacks will be equal. Figure 2 ...

    Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 153-164 : Auteur(s): Kalikhman, I.L., Z.I. Kizner, B.R. Zaripov and W.D. Tesler

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