Résultats de la recherche

1. Directed research. Antarctic Marine Living Resources (AMLR). A program development plan

   goal of effective implementation of the objectives under the CCAMLR. Section 312 of the Act directs ... under the CCAMLR. Section 312 of the Act directs, among other things, that "(A) The Director of the ... oeuvre efficace des objectifs de la CCAMLR. La Section 312 de la loi stipule, entre autres, que: "(A ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 363-373 : Auteur(s): Office of Science and Technology, NMFS, NOAA, US Department of Commerce (USA)

2. Significant intra-annual variability in krill distribution and abundance at South Georgia revealed by multiple acoustic surveys during 2000/01

   March 2001 (late-season). The surveys were the first in a newly planned five-year series of observations ... January 2000/01 (mid-season), and in March 2001 (late-season). The surveys were the fi rst in a newly ... (au début de la saison), fi n décembre 2000/début janvier 2001 (mi-saison) et en mars 2001 (vers la ... /01 г. (середина сезона), и в марте 2001 г. (конец сезона). Это были первые съемки в недавно ... enero de 2000/01 (mediados de la temporada) y en marzo de 2001 (a fi nes de la temporada). Estas ...

   Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 71–82 : Auteur(s): Brierley, A.S., C. Goss, S.A. Grant, J.L. Watkins, K. Reid, M. Belchier, I. Everson, M.J. Jessop, V. Afanasyev and J. Robst

3. Variations in echosounder calibration with temperature, and some possible implications for acoustic surveys of krill biomass

   undertaken in temperate European waters. The most recent of these took place in August 1995 at Uggdalseidet ... - see Simrad, 1993 section P2260E, pp. 15-16), which would equate to a 52.5% underestimation of krill ...

   Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 273–281 : Auteur(s): Brierley, A.S., C. Goss, J.L. Watkins and P. Woodroffe

4. Status of krill target strength

   scattering cross section, and mean volume backscattering coefficient and strength are defined. Empirical ... scattering amplitude. The backscattering cross section, 0' or O'bs, is defined in terms of the far-field ... cross section in the backscattering direction. Because of the frequently large range in values of C1 or ... strength TS, 0' TS = 10 log - = 10 log O'bs' 41l' (2) where the backscattering cross section is ...

   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

5. Prey monitoring surveys: a discussion of the characteristics necessary in prey surveys

   such surveys and the level of interaction is only a small proportion of the total Southern Ocean. The ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 377-391 : Auteur(s): Everson, I.

6. Intra-annual variability in the density of Antarctic krill (Euphausia superba) at South Georgia, 2002–2005: within-year variation provides a new framework for interpreting previous ‘annual’ estimates of krill density

   moorings (Reid and Brierley, 2001). It has been shown previously (Reid and Brierley, 2001) that sizes of ... may occur against the predominately low winter signal (e.g. July–August in 2005) (Figure 2), and ...

   Science Journal Paper : CCAMLR Science, Volume 14 (CCAMLR Science, Volume 14) : 27–41 : Auteur(s): Saunders, R.A., A.S. Brierley, J.L. Watkins, K. Reid, E.J. Murphy, P. Enderlein and D.G. Bone

7. Age determination of Notothenia gibberifrons from the South Shetland Islands, Antarctic Peninsula subarea (Subarea 48.1)

   quadrillages faux et annuels sur les ecailles. La determination de I'age au moyen de section transversale ... those obtained from the section of the first otolith. These procedures facilitated the age ... examination of an otolith cross section under reflected and transmitted lights revealed that hyaline nucleus ... had an eccentric position. The growth rings could be observed in all the section; however the dorsal ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II) : 143-160 : Auteur(s): Barrera-Oro, E.

8. Analyses of acoustic line-transect data from the waters around South Georgia: estimation of krill (Euphausia superba Dana) – biomass

   sections approximately 30 n miles in length. Each section was further divided into 1 n mile integration ... (MVBS). 226 At the end of each section various 'station' activities were carried out as part of ... . An estimate of the mean bottom depth was available for each section. The CTD profiles collected at ... either end of a section allowed an estimate of the mean temperature minimum to be obtained and used to ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 225–243 : Auteur(s): Murphy, E., I. Everson and A. Murray

9. Detection and quantitative estimation of krill concentrations by hydroacoustic instruments

   krill in form and structure. Figure 1 shows the frequency dependence of the acoustic cross-section (0 ... ; transducer axis concentration y 2 a = individual krill acoustic section, m space acoustic attenuation, db ... . Determination of Antarctic krill acoustic back scattering cross section. Report to Bergen symposium on ... MO Dependence of freshwater shrimp acoustic section on frequency (shrimp length - 4.5 cm). f ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 123-139 : Auteur(s): Yudanov, K.I.

10. Target strengths of Antarctic krill (Euphausia superba)

    . Integration of the squared beam pattern over the cage cross section and normalizing this to the solid angle ... backscattering cross section 0' by the standard relation, TS=10 log 0'/4 (Urick 1975), but with use of SI units ... . Following subtraction, averaging yields the mean backscattering cross section per krill. (2) The effective ... cage contribution can also be inferred by regressing the equivalent backscattering cross section of ...

    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

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