Résultats de la recherche

1. Estimating standing stock of krill using maximum entropy

   relate to any spatial scale determined from the krill distribution or dependent species. Interactions ...

   Science Journal Paper : CCAMLR Science, Volume 15 (CCAMLR Science, Volume 15) : 193 : Auteur(s): Everson, I

2. 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

3. 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

4. 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.

5. 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.

6. 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

7. Information on the status of fjord Notothenia rossii, Gobionotothen gibberifrons and Notothenia coriiceps in the lower South Shetland Islands, derived from the 2000–2006 monitoring program at Potter Cove

   of 24 years which began in 1983, and at Harmony Cove in the summers of 2001 to 2003. The decline in ... et qui s’étend désormais sur 24 années, et à l’anse Harmony, pendant l’été, de 2001 à 2003. Le ... начался в 1983 г., составил 24 года, а также в бухте Гармони в летние месяцы 2001–2003 гг. Все еще ... continuous sampling period of 24 years which began in 1983, and from 2001 to 2003 at Harmony Cove (HC). By ...

   Science Journal Paper : CCAMLR Science, Volume 14 (CCAMLR Science, Volume 14) : 83–87 : Auteur(s): Barrera-Oro, E.R. and E.R. Marschoff

8. A quantified Bayesian Maximum Entropy estimate of Antarctic krill abundance across the Scotia Sea and in small-scale management units from the CCAMLR-2000 Survey

   The CCAMLR 2000 Krill Synoptic Survey of Area 48 (CCAMLR-2000 Survey) (Trathan et al., 2001; Hewitt ... - mass and standard deviation values, that issues of calibration, target strength, krill orientation ...

   Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 97–116 : Auteur(s): Heywood, B.G., A.S. Brierley and S.F. Gull

9. Target strength studies on Antarctic silverfish (Pleuragramma antarcticum) in the Ross Sea

   manual (1993). The expected back- scattering cross-section (m2) of the mean fish TL for each length ... - pled stratum, following the Simrad EK500 manual (Simrad, 1993). The backscattering cross-section of ... -section of an ellipsoid (σbody), approximating the fish body (dorsal aspect), is expressed in equation ... the acoustic cross-section can be represented by equation (6) (Haslett, 1970). The parameter Rb in ...

   Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 75–104 : Auteur(s): Azzali, M., I. Leonori, I. Biagiotti, A. De Felice, M. Angiolillo, M. Bottaro and M. Vacchi

10. Is the attempt to estimate the biomass of Antarctic fish from a multi-species survey appropriate for all targeted species? Notothenia rossii in the Atlantic Ocean sector – revisited

    et al., 1991, 1992, 1994, 2000, 2002; Jones et al., 1998, 2000, 2001, 2003; Kock, 1991, 1998; Kock ... , 1992, 1994, 2000, 2002; Jones et al., 1998, 2001, 2003; Kock, 1991, 1998; Kock et al., 2002 ... Island and the lower South Shetland Islands in 1998 and 2001–2003 (Jones et al., 1998, 2001, 2003; Kock ... Island shelf (Jones et al., 1998, 2001, 2003; Kock, 1986, 1998; Kock et al., 2002). N. rossii was ...

    Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 141–153 : Auteur(s): Kock, K.-H., M. Belchier and C.D. Jones

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