Résultats de la recherche

1. Estimation of natural mortality using catch-at-age and aged mark-recapture data: a multi-cohort simulation study comparing estimation for a model based on the Baranov equations versus a new mortality equation.

   ( ) ( ){ } 1, 1 , 1 , exp 1 exp t a t a t a N N M C M M + + - = - ¢ ¢- - - (10) where M' = qM. So ... - tion and catch numbers-at-age (i.e. equations (3) to (10)). However, the process is made difficult by ... of 100 hauls where across hauls the expected num- ber of fish released was 10 giving 1 000 releases ... -function loess) Candy 10 fitted to the values of L. The PMLE of M obtained by taking the minimum of ...

   Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 1–27 : Auteur(s): Candy, S.G.

2. Target strengths of Antarctic krill (Euphausia superba)

   IO)I{Hoti reOprHH. Pe3y~bTaTbI nOKa3bIBaroT, lITO Be~HlIHHbI CH~bI u,e~H 6bI~H npH6~H3HTe~bHO Ha 10 ... aproximadamente 10dB mas bajos de 10 que previamente se habfa supuesto. 265 1 . INTRODUCTION Euphausia ... 120 kHz modes together with UNIVERSAL SONAR transducers, each with nominal 10 deg beamwidth ... nominal 10 deg beamwidth. Integration of the squared echo signals was performed with the SIMRAD OD ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 265–279 : Auteur(s): Everson, I., D.G. Bone, J.L. Watkins and K.G. Foote

3. Acoustic estimates of krill density at South Georgia, 1981 to 1998

   density estimate falling within the 95% confidence limits of the mean arising from 10 transects, we ... conducted the following simulation. Using individual transect means for the 10-transect surveys exhibiting ... combinations in which four transects could be selected from 10. The 210 four-transect means resulting from ... mean for all 10 transects. RESULTS Best estimates of krill density at South Georgia from 1981 to ...

   Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 47–57 : Auteur(s): Brierley, A.S., J.L. Watkins, C. Goss, M.T. Wilkinson and I. Everson

4. Krill (Euphausia superba Dana) resources and distribution in the Wilkes Land area in the seasons 1986 to 1989

   commercial-sized trawl with a vertical opening of 42 to 44 m. Mesh size in the codend was 10 mm. A trawl ... , the third includes the southernmost extremity of the continental slope from 64°10' to 65°00'S and the ... 41 9.4 283 11.6 2 to 4 April 10 1988 73 5.2 195 14.2 7 to 10 April 11 1989 367 16.4 504 185.2 ... 1988 12 2.8 113 1.4 5 February 6 1988 10 5.0 410 4.1 6 to 7 February 7 1988 274 40.0 1430 392.5 ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 149–162 : Auteur(s): Dolzhenkov, V.N. and V.P.Timonin

5. Quantifying vessel performance in the CCAMLR tagging program: spatially and temporally controlled measures of tag-detection rates

   rates. Sensitivities that used space windows of 10, 50, 100 and 200 km were also in- vestigated. The ... , 50 or 75% of their recaptures randomly, repeating each process 10 times. Results showed that, as ... detection rate index corresponds to the 10 simulations carried out, excluding confidence intervals ... –0.75 50 0.54–1.21 75 1.13–1.43 100 1.66 10 25 0.19–0.43 50 0.44–0.77 75 0.73–1.01 100 ...

   Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 73–80 : Auteur(s): Mormede, S. and A. Dunn

6. Catch per unit effort (CPUE) data from the early years of commercail krill fishing operations in the Atlantic sector of the Antarctic

   28 $18 3 702 33 1 950 226 20 9 599 1 217 109 7 915 652 135 5 340 1 856 10 RESULTS ... differences in the efficiency of various types of vessel opcrations). CPUE values in Table 1 exceeding 10 ... 48.3 only (see also Figure 64. CPUE SE N 10 079 1 250 163 5 698 678 186 4 923 366 122 12 516 ... et al. 10 20 30 40 50 60 70 Total length (mm) 10 20 30 40 50 60 70 Total length (mm) Figure ...

   Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 31–50 : Auteur(s): Siegel, V., V. Sushin and U. Damm

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

   distribuidas a 10 largo de las costas de las islas Shetland del Sur y Orcadas del Sur. Las capturas de kril ... aumentos considerables de las capturas es muy probable que ocurra antes de 10 que se podria esperar en ... species is estimated as within a 10 to 90 km radius of breeding sites at these times of year: Ad6lie ... (Trivelpiece et al. (1986),25 to 50 km (CCAMLR, 1990); gentoos 10 km (Croxall et al., 1984), 17 km ...

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

8. Areas of seabed within selected depth ranges in CCAMLR Subarea 48.3, South Georgia

   °52' - 54°42' 53°36' - 54°58' 53°10' - 54°59' 53°50' - 54°25' 54°00' - 54°15' 54°02' - 54°20' 54 ... (degrees West) 30°00' - 45°00' 30°00' - 45°00' 36°25' - 37°15' 35°40' - 36°10' 35°38' - 36°36' 37°04 ... ' - 38°27' 37°35' - 38°02' 37°10' - 37°56' 36°53' - 37°22' 36°27' - 37°05' 36°10' - 36°42' 35°55 ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 459–466 : Auteur(s): Everson, I. and S. Campbell

9. A generalised model for evaluating yield and the long-term status of fish stocks under conditions of uncertainty

   captura y por 10 tanto permite que se hagan evaluaciones del rendimiento para pesquerias existentes. Como ... year to numerically solve equation 10, in the absence of fishing, to determine the approximate median ... fishing mortality in each year 0.4 - 1.0 constant = 1 38-42 10 none 1.5 1E-05 L, K No of ... -exploitation spawning biomass at some time over the 20-year projection period is equal to 10%. + Values in ...

   Science Journal Paper : CCAMLR Science, Volume 3 (CCAMLR Science, Volume 3) : 31–54 : Auteur(s): Constable, A. and W.K. de la Mare

10. Preliminary appraisal of Antarctic fish selection by the 32/36 bottom trawl combined with various codends

    Island was too scarce to fit the ogive (Figure 9). - 10 - The selectivity ogive for Scotia Sea ... South Georgia and South Shetland Islands (Figure 10). Although the curves were characterized by an ... steel on tape 3.5 x 20 braided no finish 102 outer chafer steelon twisted JJ 10 braided no finish 120 ... Georgia 7 1 663 1 093 notothenia South Shetland IS. 8 10 609 4 253 Elephant I. Scotia Sea South ...

    Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 1-48 : Auteur(s): Zaucha, J.

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