Résultats de la recherche
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Krill (Euphausia superba) distribution in relation to water movement and phytoplankton distribution off the northern South Shetland Islands
deployed at a level of 30 m from the surface because at this level krill concentrations are most frequently ... circulation was studied with satellite-tracked buoys equipped with curtain drogues deployed at a level of 30 ... Shetland du Sud et Elephant ont fait l'objet d'une campagne d'evaluation a bord du RV Kaiyo Maru ... bouees suivies par satellite et equipees d'ancres de cape, deployees a 30 m de profondeur, niveau ... Ha ypOBHe 30 MeTpoB OT nOBepxHocTH, nOCKOJIbKY lIaIl\e Bcero KOHl.\eHTpal.\HH KPHJI5.I ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 123–140 : Auteur(s): Ichii, T., H. Ishii and M. Naganobu
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Estimating the impact of depredation by killer whales and sperm whales on longline fishing for toothfish (Dissostichus eleginoides) around South Georgia
51 4 3 50 5 T ot al 29 4 03 30 4 25 30 4 67 30 4 61 % in cr ea se o ... 30 3 20 06 4. 2% 4. 9% 4. 4% 3 53 5 3 68 3 3 70 7 3 69 0 20 07 3. 8 ... 30 56 1 23 9 36 3 67 0 1 09 6 5. 1 23 .3 0. 40 0. 65 20 07 14 68 ... 1 62 6 26 1 75 5 58 2 4. 2 14 .0 0. 38 0. 30 20 08 18 51 1 51 1 ...
Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 163–178 : Auteur(s): Moir Clark, J. and D.J. Agnew
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Can we use discriminant function analysis to sex penguins prior to calculating an index of a morphometric characteristic?
,12 = v = J,1 + aa a2 = ba (3) using the same methodology as described in the foregoing section ... ba = k(1l + aa) substituting equation (3) bA = l+kaA substituting equation (4) (5) We can ... is taken as an estimate of (J, and ~ is known. n;;:: 2( a /0)2 {t(X[v] + t2(1_P)[v]}2: see Sokal ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 259–272 : Auteur(s): Agnew, D.J.
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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
VB parameter estimates obtained from the length-at-age data and the Fabens (1965) form of the VB ... and the Fabens (1965) form of the VB growth model. Formulae for adjusting predictions for bias ... (1965) form of the VB growth model. Formulae for adjusting predictions for bias imparted by the use of ... VB parameter t0. Note also that if E(ec|Lr) is not zero, then apply- ing the Fabens form of the VB ... binomial/logistic model mentioned earlier. Figure 6 shows that the bias in applying the Fabens form of ...
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
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A generalised model for evaluating yield and the long-term status of fish stocks under conditions of uncertainty
the fishery by CCAMLR. As a consequence, their model outputs were relative to the initial biomass Ba ... fishing regimes. This model considers a year of 360 days, consisting of 12 monthly (30-day) intervals ... ) 1.21 I 0 10 20 30 40 50 60 Length (mm) Selectivity (b) 1.6 1 1 0 2 4 6 Age (years) Relative ... 1 0.8 0.6 0.4 0.2 0 0 10 20 30 40 50 60 Length (mm) Proportion mature (b) 1.6 0 2 ...
Science Journal Paper : CCAMLR Science, Volume 3 (CCAMLR Science, Volume 3) : 31–54 : Auteur(s): Constable, A. and W.K. de la Mare
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Estimating unaccounted fishing mortality in the Ross Sea region and Amundsen Sea (CCAMLR Subareas 88.1 and 88.2) bottom longline fisheries targeting Antarctic toothfish
. Collecting and analysing data to better CCAMLR Science, Vol. 19 (2012): 17–30 17 ESTIMATING UNACCOUNTED ... CCAMLR C2 (longline gear catch and effort database) report- ing form was modified for the 2008 fishing ... vessel on the C2 form). Webber and Parker 20 Results Data grooming The initial data grooming ... sections of longline gear, as required on the C2 form, is recommended, in particular, to report zero ...
Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 17–30 : Auteur(s): Webber, D.N. and S.J. Parker
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Biomass of myctophids in the Atlantic sector of the Southern Ocean as estimated by acoustic surveys
concentrations of myctophids as long bands or spots (isolated schools) with a height of up to 30 m (Figures 1 ... concentrations of myctophids in the form of elongated strips were found in the waters of the Frontal Zone ... 47° and 56°S and between 8° and 44°W in the period 30 January to 10 April. The bulk of the biomass ... surveyed in two stages. Firstly, the area from 51 °30' to 56°00'S and between 20°30' and 26°30'W was ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 417–431 : Auteur(s): Filin, A.A., K.V. Gorchinsky and V.M. Kiseleva
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A review of the diet and at-sea distribution of penguins breeding within the CAMLR Convention Area (submitted to the 2008 Joint CCAMLR-IWC Workshop)
penguins form the foci of other strands of Subgroup on Status and Trend Assessment of Predator ... 1994. Birds travelled for c. 30 days to areas of perennially consistent pack- ice in the eastern Ross ... digested that numbers and mass could not be determined. Nototheniidae (notably T. eulepidotus and P. ant ...
Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 75–114 : Auteur(s): Ratcliffe, N. and P. Trathan
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Feeding patterns of nine species of Antarctic fish and assessment of their daily food consumption
(~Ba BH~a). 3TO HCCJle~OBaHHe HanpaBJleHO Ha aHaJlH3 COCTaBa nHIQH 3THX BH~OB B ~eJlSlx H3YlleHHSI HX ... a given time, t - time, A - constant. (1) From equation (1) it follows that the amount of food ... in a particular stomach varies according to the equation: S(t) = S (0) exp (-At) (2) where S (0 ... ) - amount of food at time t = O. 323 Equation (2) clearly shows that 90% of food is evacuated over a ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 321–333 : Auteur(s): Pakhomov, Y.A. and V.B. Tseitlin
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Estimation of effective sample size for catch-at-age and catch-at-length data using simulated data from the Dirichlet-multinomial distribution
data to be input as the total yearly frequency in the form of class proportions com- bined with the ...
Science Journal Paper : CCAMLR Science, Volume 15 (CCAMLR Science, Volume 15) : 115–138 : Auteur(s): Candy, S.G