Résultats de la recherche
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Calibration of an acoustic echo-integration system in a deep tank, with system gain comparisons over standard sphere material, water temperature and time
and a copper sphere to vary by ±0.2 dB and ±0.1 dB from 0 to 30°C, respectively. TS gain values were ... . Optimal acoustic beam pattern corrections for split-beam transducers. ICES, B:30 Sess. R. ROBINSON, BJ ... held stable, but spatially adjustable, in the acoustic far-field. 2L2 far-field > T 129 where ... -.-... - ..... - ........... - ..... ~:.,'.:. ....... - ............... - .. - .. t .. · .. "'---'--'-' · .. ·_-t· .... _ .. _ ... -- .... ···t ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 127–144 : Auteur(s): Demer, D.A. and R.P. Hewitt
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Estimation of krill (Euphausia superba) mortality and production rate in the Antarctic Peninsula region
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 ... C ID ::J 0- ID ~ LL 6 5 4 3 2 1 25 30 35 40 45 50 Total Length (mm) N=12933 ... 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.
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Status of krill target strength
number density were performed at 30 and 20 kHz. Measurements at 30 kHz were performed near Bouvet Island ... et al. (1992) show that this dip can be quite distinct and is sometimes as much as 30 dB below the ... pressure field is to be evaluated, (0 is the angular frequency, and t is time. The scattered pressure ... . Suppressing the time dependence exp( -i(O t), Um r~oo p = Afexp(ikr)/r, se where fis the far-field ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 101–126 : Auteur(s): Foote, K.G., D. Chu and T.K. Stanton
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A rationale for conservation areas within Antarctic waters
, that all fishing data are recorded in the form recommended by the Scientific committee of CCAMLR (see ... abundance. Sci~ Rep. Whales Res. Inst. Tokyo 37: 155-165. HOSHIAI, T., T. SWEDA, and A. TANlMURA. 1986 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 513-535 : Auteur(s): Chittleborough, R.G.
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SC-CAMLR-XXIV
International Whaling Commission(Ulsan, Republic of Korea, 30 May to 10 June 2005) CCAMLR Observer (K.-H. Kock ... /BG/29 Ad Hoc WG-IMAF Conveners’ summary for the Scientific Committee 2005 SC-CAMLR-XXIV/BG/30 A ...
Meeting
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e-sc-xvii-a4-appD.pdf
... for CCAMLR split-years which run from 1 July to 30 June. The following convention was adopted ... season ended. In this form winter seasons are the same as in the text and summer seasons as the ... properties of the water column annually in the Elephant Island region of Subarea 48.1. Each year, two 30-day ... located north of Elephant Island – Drake Passage (EI1) (60°30’S, 56°30’W), southwest of Elephant Island
application/pdf attached to:WS-AREA 48-98
Meeting Report : WS-AREA 48-98
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e-imaf-02 report.pdf
... (Table 6.2) compared with 30 birds last year and 21 the year before (Table 6.3). The overall catch ... to undertake this has not been found despite considerable effort (WG-FSA-02/30). 6.35 The Working ... , paragraph 6.26). WG-FSA-02/30 reported that that the experimental design and project cost projections had ... commitments. The Working Group especially welcomed Ms T. Hewitt (Australia), Dr D. Nel (South Africa), Mr M
application/pdf attached to:WG-IMAF-02 ad hoc
Meeting Report : WG-IMAF-02 ad hoc
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On the intensity of sampling krill trawl catches
8012, South Africa 29 30 • l'examen des differences minimales de longueurs decelables d'une ... South Orkneys Elephant Island 1mm 750 500 2mm 200 150 5mm 30 25 37 :r: G z w -' 0---0 ... 120 100 90 80 70 60 50 40 30 20 10 30 35 i i i i i i i i i i i i i ... difference. As explained in Appendix 1 (A), a simple two-sample t test was used and the between-population ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 29–48 : Auteur(s): Miller, D.G.M.
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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 ... Mean 6.9 470 -63.2 -64.8 -1.6 (Noise) 80 - I " , - -- I I ...L. " ~i :~ I ~t ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 75–86 : Auteur(s): Hampton, I.
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Investigations of required sampling regimes for environmental parameters
that with a sample size of about 30 maximum and minimum temperature readings (1 per day), a mean ... which case the sample size is fixed at 30 to 31 per month. The results of sensitivity analyses ... -30 per month) may produce data sufficient to identify 10% changes in maximum wind speed in January ... influenced by the depressional cycles identified in the data. This means that a sample size of about 30 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 561–573 : Auteur(s): Agnew, D.J.