Résultats de la recherche

1. Abundance, size and maturity of krill (Euphausia superba) in the krill fishing ground of Subarea 48.1 during the 1990/91 austral summer

   survey described, were found restricted mainly to the nearshore zone. Gravid females were exceedingly ... by examining the relationship between the pattern of krill distribution and oceanographic structure ... . A zig-zag transect pattern in the offshore region of Livingston Island was caused by weather ... reduction in source level and receiving sensitivity. 2.3 Net Sampling Samples of krill were collected by ... the end of the telson. All measurements were carried out by a single observer to avoid ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 183–199 : Auteur(s): Ichii, T., H. Ishii and M. Naganobu

2. Use of the Leslie stock depletion model for the assessment of local abundance of Patagonian toothfish (Dissostichus eleginoides)

   size, and that this reduction would be indicated by a significant decline in an abundance index with ... cumulative catch was then calculated separately for each series, including any catches taken by other ... . A limited analysis was undertaken by WG-FSA at its meeting in 1992, which showed no relationship ... start of setting and the time at the start of hauling. It was generally felt by WG-FSA that this was ...

   Science Journal Paper : CCAMLR Science, Volume 3 (CCAMLR Science, Volume 3) : 55–77 : Auteur(s): Parkes, G., C.A. Moreno, G. Pilling and Z. Young

3. An overview of Southern Ocean zooplankton data: abundance, biomass, feeding and functional relationships (submitted to the 2008 Joint CCAMLR-IWC Workshop)

   relationships to food and temperature. Functional relationships are in great demand by modellers but seldom ... produced by SO ecologists. It is therefore shown where these limited data lie and, where non-SO-specific ... second- ary production. They typically comprise >75% of biomass and are only exceeded by E. superba or ... water column in the productive sea- son, followed by reproducing adults. Most studies address the ...

   Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 171–218 : Auteur(s): A. Atkinson, P. Ward, B.P.V. Hunt, E.A. Pakhomov and G.W. Hosie

4. Status of the FIBEX acoustic data from the West Atlantic

   Area 48 (Conservation Measure 32/X). This limit was based on calculations undertaken by the ... collection, whilst errors in time and position were corrected by examining details of speed and course in ... the version which was distributed by the BIOMASS Data Centre to those nations which contributed to ... the acoustic integration interval adopted by the l t zurn i was different to that used by other ...

   Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 35–48 : Auteur(s): Trathan, P.N. and I. Everson

5. Patterns and processes in the distribution and dynamics of Antarctic krill

   approximation, it is reasonable to regard phytoplankton abundance as determined by physical processes. Of ... first is that the patterns revealed by those descriptions allow the formulation of the simplest models ... correspondence of the spectral estimates for temperature and fluorescence suggests that grazing by herbivores ... wavenumber). Although krill distribution undoubtedly is influenced by physical processes (such as advection ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 281–299 : Auteur(s): Levin, S.A., A. Morin and T.M. Powell

6. Note on estimating krill abundance from acoustic data on individual aggregations

   acoustic hardware and software have enabled fine resolution (i.e., ping-by-ping) information on the ... be obtained by using such information. Although the principles underlying such an approach are ... here. 2. ABUNDANCE ESTIMATION BY ECHO-INTEGRATION The primary equation for estimating P j' the mean ... targets of interest. Areal biomass is estimated by mUltiplying the survey area by the weighted (according ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 219–223 : Auteur(s): Hampton, I. and D.G.M. Miller

7. Observations on haul-out patterns and trends in the breeding populations of southern elephant seal at Península Valdés (Patagonia) and Stranger Point (25 de Mayo - King George I.)

   ). Population decrease was reported by several authors in different stocks: at Kerguelen (Skinner and van ... Stranger Point was calculated by females plus weaned and dead pups (McCann, 1985) and at Peninsula Valdes ... a mathematical model as described by Lewis (in press) was used. Estimates of intrinsic ... population growth rates were based on the exponential function: Nt = No e rt as suggested by Caughley (1977 ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 453-463 : Auteur(s): Vergani, D.F., M.N. Lewis and Z.B. Stanganelli

8. CPUE indices used in Soviet krill fishery statistics from 1977 to 1992 and their possible utility for evaluation of relative changes in krill biomass

   the high variability of CPUE indices, which are infl uenced by many factors, means that they may not ... correlation between these indices, as recom- mended by CCAMLR (SC-CAMLR, 2002), as well as their utility for ... –1992) and the AtlantNIRO computerised database containing haul-by-haul data from 1986 to 1991, so ... Southwestern Atlantic (Anon., 1978–1992) contains data from 1977 to 1991 by a fi shery operator (Regional ...

   Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 165–177 : Auteur(s): Litvinov, F.F., A.Z. Sundakov and V.I. Arkhipov

9. Review of length-weight relationships for Antarctic krill

   goodness of fit tests of the regressions by examining their variances. They found that the simple ... relationships has already been carried out by Morris et al. (1988), who also investigated the importance of ... Tables 1 to 4 summarise the available length-weight relationships for E. superba by season and contain ... shows that the results may differ by 15% when using length-weight relationships for kriU at different ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 145–155 : Auteur(s): Siegel, V.

10. Refinements to the strategy for managing depleted fish stocks based on CCAMLR objectives

    -DAC) suggested that the interpretation of Article IT of the CCAMLR Convention would be assisted by ... might be a by-catch limit in practice) would be set using whichever of these fishing mortalities was ... distribution associated with the current assessment, weighted by their subjective probabilities. These ... catches by weight, however, rather than applying fishing mortality. The catches by weight were calculated ...

    Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 467–475 : Auteur(s): de la Mare, W.K. and A. Constable

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