Résultats de la recherche

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

   instruments Abstract / Description:  The limited capabilities of existing hydroacoustic instruments in ... in areas surveyed. The task of detecting surface concentrations of krill can be solved with the help ... capable of registering individual krill at a depth of 50–60 m while the vessel is in motion. According to ... expense of a rise in the acoustic power of emission. File:  06-Yudanov.pdf ... transmitter frequency. Thus, echo sounders operating at comparatively low frequencies (20-30 kHz) are much ... length of transmitted pulses less than 1 msec., 2 specific power can be accepted as 15-20 Wt/cm. In ... . Investigations over many years have proved that krill disperses extremely non-uniformly over vast areas in the ... different years and seasons. In the same area at different times, krill can form large concentrations in ...

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

2. e-sc-xxxv-a04.pdf

   ... orientations (N( θ = x°, s.d. = y°) of N(–20°, 28°)). Specifically, the Subgroup identified that in the ... Islands (SC-CAMLR-XXXIV, Annex 6, paragraph 2.223) in which the frequencies varied by vessel and year ... such that there was no single frequency that could be used in every year to generate a coherent series ... calculated during SG-ASAM-10 (mean, SD) N(–20°, 28°), should be used in the absence of any other application/pdf attached to:SG-ASAM-16

   Meeting Report : SG-ASAM-16

3. The BROKE-West acoustic krill biomass survey of CCAMLR Division 58.4.2

   krill in CCAMLR Division 58.4.2 (the South West Indian Ocean Sector) in January-March 2006. The survey ... 11 parallel transects between 30° and 80°E. The survey design was presented to WG-EMM for their ... comment in 1995 and suggested improvements have been incorporated into the final design. Author(s):  S ...

   Meeting Document : WG-EMM-05/11 : Auteur(s): S. Nicol, S. Kawaguchi, T. Jarvis and T. Pauly (Australia)

4. Fishery Report: Dissostichus eleginoides Kerguelen Islands (Division 58.5.1)

   France in its EEZ extends from 1 September to 31 August of the following year, the season used in this ... report is the CCAMLR season (1 December to 30 November of the following year). 60°E 65°E 70°E 75°E 80 ... spawning is restricted to the westerly zone early in winter each year (Lord et al., 2006). Tagging ... year and nationality for longline vessels are summarised in Table 2. The average (unstandardised ...

   Document : Site Section: Publications

5. Information from the organiser

   Piazzale della Farnesina 1 00135 Roma BADGE Each day between 8:00–8:30 ... they will drop their badges. HOSPITALITY During the Workshop refreshments for morning (10:30–11:00 ... ) and afternoon (15:30–16:00) tea breaks will be provided for participants. On 26 April a welcome ... access to a Wi-Fi connection in all the rooms of the Workshop. The Secretariat is kindly requested to ...

   Document : Site Section: Meetings

6. KRILL CONSUMPTION ESTIMATES FOR CRABEATER SEALS AT THE ANTARCTIC PENINSULA AND THE WESTERN WEDDELL SEA WITH SPECIAL REFERENCE TO SSMUS OF AREA 48.1

   Abstract:  We report annual Antarctic krill consumption estimates for crabeater seals in the ... Antarctic Peninsula and western Weddell Sea region (90° to 30° W and 60° to 80° S), with special reference ... estimates of crabeater seals from the UK-APIS survey conducted in 1999, and were produced with a ...

   Meeting Document : WG-EMM-09/21 : Auteur(s): J. Forcada and P.N. Trathan (United Kingdom)

7. Trophic study of Ross Sea Antarctic toothfish (Dissostichus mawsoni) using carbon and nitrogen stable isotopes

   glacialis (Gg, n=3), Kondakovia longimana (Kl, n=20), Psychroteuthis glacialis (Pg, n=20) and the Colossal ... variables in explaining the variation of δ15N and δ13C. Positive relationships between length and δ15N ... were substantial residual within-species variations in δ15N and δ13C. Dissostichus mawsoni exhibited a ... range of 7 ‰ (9–16 ‰) in δ15N, which is equivalent to two trophic steps. All fish, except Antimora ...

   Meeting Document : WG-EMM-08/27 : Auteur(s): S.J. Bury, M.H. Pinkerton, D.R. Thompson, S. Hanchet, J. Brown and I. Vorster (New Zealand)

8. SG-ASAM-17

   survey for CCAMLR Division 58.4.1 during 2018/19 season by the Japanese survey vessel, Kaiyo-maru H ... in Antarctic S.-G. Choi, H. Lee, K. Lee and J. Lee ...

   Meeting

9. Incident of Antarctic krill (Euphausia superba) mass infection near the coasts of South Georgia Island (Subarea 48.3)

   Abstract:  In the north-eastern part of South Georgia Island shelf (Subarea 48.3) on 30 July 2001 ... by the disease that had not been described earlier. In the period of winter and spring some males and ... percentage of krill invasion increased 2.3 times. In shelf zone and on the continental slope of the South ...

   Meeting Document : WG-EMM-02/13 : Auteur(s): M.S. Savich (Ukraine)

10. Modelling krill recruitment

    observed values of the mean proportion of recruits and its variance to model recruitment in a krill ... population in terms of numbers of recruits. The method includes the calculation of natural mortality and ... in the observed recruitment parameters.  File:  04delamare-mod-rec.pdf ... estimated. MODEL DEVELOPMENT In modelling a krill population we need, in each year of a simulation, a ... the recruitment in each year is randomly and independently distributed, then it can be shown that ... and its variance to model recruitment in a krill population in terms of numbers of recruits. The ... which are consistent with the statistical uncertainty in the observed recruitment parameters. Resume ...

    Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 49–54 : Auteur(s): W.K. de la Mare

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