Resultados de la búsqueda
-
Determination of Antarctic krill acoustic back-scattering cross-section
directivity diagram can be determined as 2 .b G4 Lk . ritax max (10) mln -2 b Lk min By substituting ... (7) in (10) and (4) in (7) we obtain the expression for determining the mean value of acoustic back ... measurements, the following parameters of the echo sounder were determined : p = 49 103 Palm, = 3.1 10-3 v ... , standardized echo signals ~ max were used in calculations. 10 The attenuation coefficient was determined ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 141-152 : Autor(es): Protaschuk, V.A. and T.A. Lukashova
-
Effect of line sink rate on albatross mortality in the Patagonian toothfish longline fishery
Setting and Hauling A typical set for the CFL Pioneer was about eight magazines or 10 800 hooks, giving ... spacings, averaged 2.72/s. At this rate the CFL Pioneer set 10 800 hooks (eight magazines) in about one ... was attached to two The In Sung 66 set the line at 10-10.5 knots, about maximum cruising speed ... 15-20 m behind the vessel and about 10 m broadside of the water entry point of the hook line and ...
Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 133–150 : Autor(es): Robertson, G.G
-
Breeding numbers and success of Eudyptes penguins at Marion Island, and the influence of mass and time of arrival of adults
return to relieve their part- ners, the incubation shifts of the two parents last- ing 10–14 days on ... , counts of the numbers of chicks in crèches were made as close as possible to 10 February (Cooper et al ... was then suspended from a spring balance that weighed to an accuracy of 10 g. After weigh- ing, both ... /03 19 Nov 19 Nov 19 Nov 9 Dec 9 Dec 9 Dec 2003/04 20 Nov 19 Nov 19 Nov 10 Dec 10 Dec 10 Dec 2004/05 ...
Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 175–190 : Autor(es): Crawford, R.J.M., B.M. Dyer, J. Cooper and L.G. Underhill
-
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
given set were kept together for bootstrapping (see Bradford, 2002) and 10 000 bootstrap samples were ... 5 000 10 000 15 000 Fr eq ue nc y 250 200 150 100 50 0 ... bootstrap variances for all vessels in the years 2008–2011 were determined (Table 10) by apply- ing the ... Proportion 2008 7 508 266 5 798 834 0.772 2009 8 519 566 4 667 698 0.548 2010 10 185 876 2 595 514 0.255 ...
Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 17–30 : Autor(es): Webber, D.N. and S.J. Parker
-
Surface water circulation in krill fishing areas near the South Shetland Islands
were re-calculated for each 5' latitude X 10' longitude block (5 X 5 n miles) for each month of the ... indicate positions of buoys each 10 days. Dates show periods of tracking buoys. (d) - combined tracks of ... represents approximately the distance drifted by buoys each 10 days. Ichii and Naganobu 64" 60" 56" 52 ... #identification des bouees. Les cercles vides indiquent la position des boukes tous les 10 jours. Les dates ...
Science Journal Paper : CCAMLR Science, Volume 3 (CCAMLR Science, Volume 3) : 125–136 : Autor(es): Ichii, T. and M. Naganobu
-
Analysis and modelling of the Soviet Southern Ocean krill fleet, II: Estimating the number of concentrations and analytical justification for search data
(spatial scale 100 m) which then aggregate into concentrations of krill (spatial scale 10 nm) in a large ... " aggregate. Figures 10 and 11 show the results of this approach. Although circles are drawn in these figures ... , running the survey portion of the model developed in Mangel (1989) showed that the bias was only about 10 ... the majority of computations reported below v=10 kt; the other parameters are determined by the data ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 283–322 : Autor(es): Mangel, M.
-
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
ejemplares de 5 anos, 10 que no se vio en la prospeccion del Falklands Protector realizada en enero de 1992 ... in Table 10, with residuals plotted in Figure 5. No attempt was made to re-run the analysis ... -normal error. Mean recruitment and the variance of 10& recruitment were taken from the VPA between 1977 ... number at age, start of year (MAFF output Table 10) age 1977 1978 1979 1980 1981 1982 1983 1984 1985 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 49–79 : Autor(es): Parkes, G.
-
The role of fish as predators of krill (Euphausia superba) and other pelagic resources in the Southern Ocean (submitted to the 2008 Joint CCAMLR-IWC Workshop)
populations already being depleted at the time of the estimate) varied from 10 000 000 to 25 000 000 tonnes ... . Nototheniids and channichthyids have a life span of typically 10–20 years (Kock et al., 1985; La Mesa et al ... were available from trawl surveys conducted from 1987 to 2006 (Table 10). They were largely ... abundant demersal fish species (in terms of biomass) in bot- tom trawl surveys at South Georgia (Table 10 ...
Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 115–169 : Autor(es): Kock, K.-H., E. Barrera-Oro, M. Belchier, M.A. Collins, G. Duhamel, S. Hanchet, L. Pshenichnov, D. Welsford and R. Williams
-
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)
Channichthyidae each totalling less than 10% by mass. The squid component was dominated by P. glacialis and A ... breeding period: three females post-laying (four trips), two males (two trips) post-hatching, 10 adults ... from wind. Kooyman and Ponganis (2007) fitted 10 juveniles with PTTs on their first trip from the ...
Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 75–114 : Autor(es): Ratcliffe, N. and P. Trathan
-
An assessment of the exploratory fishery for Dissostichus spp. on BANZARE Bank (CCAMLR Division 58.4.3b) based on fine-scale catch and effort data
h (k g) 23 8 - - - - - - 23 8 C - 9 75 - 6 - - 90 R - 10 ... 48 - 10 - - 68 E ff or t D ay s fi sh ed - 15 71 - 9 - - 95 T ... O A (n ) - 1 33 5 8 82 1 - 55 3 - - 10 7 09 T O A (k g) - 40 5 55 ... ( kg ) - - - 34 6 79 - 47 84 34 8 10 74 2 73 B y- ca tc h (n ) - - 2 ...
Science Journal Paper : CCAMLR Science, Volume 15 (CCAMLR Science, Volume 15) : 55–78 : Autor(es): McKinlay, J.P., D.C. Welsford, A.J. Constable and G.B. Nowara