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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
held stable, but spatially adjustable, in the acoustic far-field. 2L2 far-field > T 129 where ... 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 ... -.-... - ..... - ........... - ..... ~:.,'.:. ....... - ............... - .. - .. t .. · .. "'---'--'-' · .. ·_-t· .... _ .. _ ... -- .... ···t ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 127–144 : Autor(es): Demer, D.A. and R.P. Hewitt
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SC-CAMLR-II
): Tuesday, 30 August 1983 to Thursday, 8 September 1983 Meeting documents Doc Number Title SC-CAMLR-II/01 ...
Meeting
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Broadbandwidth sound scattering and absorption from krill (Meganyctiphanes norvegica), Mysids (Praunus flexuousus and Neomysis integer) and shrimp (Crangon crangon)
(Meganyctiphanes norvegica) over the acoustical bandwidth of 30 to 210 kHz and compared to similar scattering ...
Meeting Document : WG-EMM-04/40 : Autor(es): S.G. Conti, D.A. Demer (USA) and A.S. Brierley (United Kingdom)
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Mackerel icefish biomass and distribution on the results of acoustic survey carried out in February–March 2002
estimate of the icefish biomass in the subarea of South Georgia amounted to 92.6 thous. tonnes. Nearly 30 ...
Meeting Document : WG-FSA-02/44 : Autor(es): S.M. Kasatkina, V.Yu. Sunkovich, A.P. Malyshko and Zh.A. Frolkina
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On the problem of by-catch of juvenile fish in krill fishery
was usually less than 50 fish per 30 min trawling. By-catch in commercial trawls was from 114 to 1 x ...
Meeting Document : WG-FSA-92/10 : Autor(es): C.A. Pankratov and E.A. Pakhomov (Ukraine)
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A critical re-examination of the evidence for a possible dependence of Weddell seals (Leptonychotes weddellii) on Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea, Antarctica
estimates. While large (>30 g) silverfish occurring at high densities are a valuable nutritional ...
Meeting Document : WG-EMM-13/28 : Autor(es): R. Eisert, M.H. Pinkerton (New Zealand), S.D. Newsome and O.T. Oftedal (USA)
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Discussion on recent results from an integrated assessment of Antarctic krill (Euphausia superba) in Subarea 48.1
(either decreasing or increasing) in krill biomass have not been apparent over the past 30+ years ...
Meeting Document : WG-EMM-14/35 : Autor(es): G.M. Watters, C.S. Reiss and D. Kinzey (USA)
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e-sc-xxvii-a6.pdf
application/pdf attached to:WG-IMAF-08Meeting Report : WG-IMAF-08
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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 ... Phytoplankton/Zooplankton Relationships (ll). BIOMASS Rep. Ser. 56: 1-13. HOSIE, G.w., T. IKEDA, and M. STOLP ... ) in the Prydz Bay region, Antarctica. Polar Bioi. 8: 213-224. 168 KAWAKAMI, T. and T. DOl. 1979 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 159–176 : Autor(es): Siegel, V.
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Status of krill target strength
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 ... 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 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 101–126 : Autor(es): Foote, K.G., D. Chu and T.K. Stanton