Resultados de la búsqueda

1. 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 : Autor(es): Foote, K.G., D. Chu and T.K. Stanton

2. 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 : Autor(es): Everson, I.

3. 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 : Autor(es): Saunders, R.A., A.S. Brierley, J.L. Watkins, K. Reid, E.J. Murphy, P. Enderlein and D.G. Bone

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 : Autor(es): Barrera-Oro, E.

5. 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 : Autor(es): Murphy, E., I. Everson and A. Murray

6. 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 : Autor(es): Yudanov, K.I.

7. 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 : Autor(es): Everson, I., D.G. Bone, J.L. Watkins and K.G. Foote

8. 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 : Autor(es): Barrera-Oro, E.R. and E.R. Marschoff

9. Movement, growth and available abundance to the fishery of Dissostichus eleginoides Smitt, 1898 at Heard Island, derived from tagging experiments

   movement patterns of this species. Some genetic work has been published (Appleyard et al., 2001; Smith et ... al., 2001; Smith and McVeagh, 2000) which demonstrates that fi sh from widely separated locations ... et al. (2001) found very few genetic differences between fi sh in differ- ent grounds within the ... parameters (L∞ = 2 465 mm, k = 0.029 year-1, t0 = -2.56; data from SC-CAMLR, 2001). The tagged fi sh then ...

   Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 33–48 : Autor(es): Williams, R., G.N. Tuck, A.J. Constable and T. Lamb

10. A review of data on abundance, trends in abundance, habitat use and diet of ice-breeding seals in the Southern Ocean (submitted to the 2008 Joint CCAMLR-IWC Workshop)

    winter reflected the interaction between the reliance of seals on regions of high zooplankton abundance ... ., 2001; Sato et al., 2002; Hindell et al., 2002; Davis et al., 2003; Watanabe et al., 2003; Fuiman et ...

    Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 49–74 : Autor(es): Southwell, C., J. Bengtson, M. Bester, A.S. Blix, H. Bornemann, P. Boveng and M. Cameron, J. Forcada, J. Laake, E. Nordøy, J. Plötz, T. Rogers, D. Southwell, D. Steinhage, B.S. Stewart and P. Trathan

Páginas