Résultats de la recherche

1. Temporal variability and the interrelationships between CEMP parameters collected on Adélie penguins at Béchervaise Island

   Adélie penguins at Béchervaise Island Abstract / Description:  Temporal variability in a series of CCAMLR ... output from the Automated Penguin Monitoring System (APMS), were also examined in terms of their ... , m in im um , m ax im um , st an d ar d d ev ia ti on ( SD ), sa m pl e si ze ... : T em po ra l m ea n, s ta nd ar d d ev ia ti on ( SD ), sa m pl e si ze ( n) a ... t d if fe re nt t im es w it hi n th e ar ri va l an d i nc ub at io n pe ri ... ed f or f em al e pe ng ui ns d ur in g th e d ep ar tu re pe ri od in th e 19 ...

   Science Journal Paper : CCAMLR Science, Volume 10 (CCAMLR Science, Volume 10) : 75–90 : Auteur(s): Emmerson, L.M., J. Clarke, K.R. Kerry and C. Southwell

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

   between the Antarctic sectors, but latitudinally it is maximal in the Polar Frontal Zone and declines to ... for differences in the extent of identification of early larval stages. Likewise, the time of year ... in size structure and abundance. Other issues are specific to polar environments, for example, lipid ... in global literature compilations. Likewise, stenothermy (narrow temperature tolerance) means that ... 100 200 300 400 500 600 Pe rc en ta ge  re te nt io n Net mesh size (microns) Abundance Biomass ... from the Atlantic (50oN to 50oS). 0 20 40 60 80 100 0 100 200 300 400 500 600 Pe rc en ta ge ... 600 Pe rc en ta ge  re te nt io n Net mesh size (microns) Galliene & Robins (2001) Open ocean ... Antarctic sectors, but latitudinally it is maximal in the Polar Frontal Zone and declines to the north and ...

   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

3. Demographic characteristics of the Adélie penguin population on Béchervaise Island after 12 years of study

   , fecundity levels and population numbers) were analysed for the Béchervaise Island Adélie penguin colony in ... changes in annual survival rates, especially of young breeding adults, than to changes in fecundity ... parameters. Results are discussed in comparison with data from a declining Adélie penguin population in the ... Ross Sea studied during the 1960s and 1970s (Ainley et al., 1983), and in relation to other CEMP ... oo le d (b ) P oo le d a ge -s pe ci fi c an nu al su rv iv al (p x) 3 68 ... ee d in g su cc es s 0. 71 T ab le 2 : A ge -s pe ci fi c su rv iv al r at es ... % ) (c on ti nu ed ) 62 Clarke et al. T ab le 2 (c on ti nu ed ) ag e (x ) N a liv e ... 66 53 80 .3 2 9 2 1 50 .0 1 M ea n an nu al s ur vi va l ...

   Science Journal Paper : CCAMLR Science, Volume 10 (CCAMLR Science, Volume 10) : 53–74 : Auteur(s): Clarke, J., L.M. Emmerson, A. Townsend and K.R. Kerry

4. Sensitivity investigation of the SDWBA Antarctic krill target strength model to fatness, material contrast and orientation

   model is recognised as state-of-the-art in predicting acoustic target strength (TS) from fluid-like ... TS of Antarctic krill (Euphausia superba) for use in the acoustic echo-integration method. In this ... the distribution of animal orientations. Due to the high variability of TS to realistic changes in ... variability of krill in the area of investigation. In a multifrequency context, the girth–length relationship ... ] O bs er va tio n in a qu ar iu m C hu e t a l., 1 99 3 E. su pe rb a N [ 20 ... iu m D em er a nd C on ti, 2 00 5 E. su pe rb a N [1 5, 5] M at ch in g ... th -d ep en de nt d en si ty c on tra st ( g) a nd s ou nd s pe ed c on tra st s ... ir no ta tio n in t hi s pa pe r (S ym bo l) an d SD W B A pa ck ag e2 00 50 60 ...

   Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 97–122 : Auteur(s): Calise, L. and G. Skaret

5. A hybrid approach to acoustic classification and length estimation of krill

   the acoustic estimates of species and sizes to net samples collected during three surveys conducted in ... et à l’estimation de la taille de deux espèces d’euphausiidés par acoustique. Une concentration ... probabilités de classifi cation, on a intégré les décisions individuelles. La structure des tailles de la ... concentration classifi ée est dérivée d’un modèle de sphère fl uide. L’effi cacité de la méthode est démontrée ... при различных условиях окружающей среды. Resumen Se considera el problema de la identifi cación ...

   Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 33–58 : Auteur(s): Azzali, M., I. Leonori and G. Lanciani

6. A first step towards modelling the krill–predator dynamics of the Antarctic ecosystem

   ecosystem Abstract / Description:  The history of human harvests of seals, whales, fish and krill in the ... hypothesis of a krill surplus in the mid-20th century is described, and the information on population and ... ) species. The model commences in 1780 (the onset of fur seal harvests) and distinguishes the Atlantic ... /Indian and Pacific Ocean sectors of the Southern Ocean in view of the much larger past harvests in the ... de la interacción entre especies por sí solos pueden explicar las tendencias observadas de la ... the discovery of high levels of fluoride in the exoskeleton of krill (Nicol and de la Mare, 1993 ... discussions de cette question. L’objectif de cette étude est de déterminer si, à elles seules, les ... sur les espèces de krill, de quatre baleines mysticètes (la baleine bleue, le rorqual commun, la ...

   Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 217–277 : Auteur(s): Mori, M. and D.S. Butterworth

7. Methodological guidelines on the assessment of trawl catchability of krill by means of statistical modelling

   method, which is described in the works by Metropolis, N., Ulam, S. (1949) and Sobol, I.M. (1978), is ... assessment of complex stochastic systems, including the assessment of the effectiveness of trawl nets used in ... of various configurations. The algorithm for solving this problem is constructed in such a way that ... equations and two double inequalities). The proposed algorithm can be realised by computer in algorithmic ... in the works by Metropolis, N., Ulam, S. (1949) and Sobol, I. M. (1978), is used as a basis. The ... methode Monte-Carlo, decrite dans les ouvrages de Metropolis, N., Ulam, S.(1949) et Sobol, I. M.(1978) a ... . El metodo Monte-Carlo, que se describe en los trabajos de Metropolis, N., Ulam, S. (1949) y Sobol, 1 ... Metropolis, N, Ulam, S (1949), C060JI~ M. M. (1978) . McrroJI b30BaHHe MeTOAa MOHTe-Kapno rrone3HO rrpH ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 195-222 : Auteur(s): Kizner, Z.I.

8. A balanced model of the food web of the Ross Sea, Antarctica

   model has 38 trophic groups and is balanced in terms of annual flows of organic carbon in an average ... recent year (1990–2000). The focus of the model is on the role of Antarctic toothfish in the food web ... ) in trophic flows between groups. Parameters for biomass, production rate, growth efficiency, diet ... changes in biomass, production/biomass and production/consumption parameters were needed to balance the ... ) Export fraction δXi i i iX X K X ¢ = + × (7) Accumulation fraction δAi i i iA A K A ¢ = + × (8 ... these groups due to the fishery. Résumé Un réseau trophique quantitatif de la mer de Ross est ... présenté ici en vue de l'étude des effets sur l'écosystème de la pêcherie de légine antarctique ... biote de la mer de Ross sont consolidées dans le modèle qui teste la cohérence des données. Le modèle ...

   Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 1–31 : Auteur(s): Pinkerton, M.H., J.M. Bradford-Grieve and S.M. Hanchet

9. Biology and harvesting of Dissostichus eleginoides around the Kerguelen Islands (Division 58.5.1)

   species in the fisheries of the Southern Ocean. In Division 58.5.1, a directed trawl fishery has been in ... operation since 1984/85 and has expanded in the deep western sector of the Kerguelen Shelf. This fishery ... biological information on population dynamics, as well as demographic structures and trends observed in an ... cette annee-Ia sont directement le reflet d'une abondance liee a cette decouverte. Depuis cette date le ... va en aumento. Desde la temporada 1984/85 existe una pesqueria de arrastre en la Division 58.5.1 ... eleginoides constitue de plus en plus une espece importante dans les pecheries de l'ocean Austral. Dans la ... ouest profond du plateau de Kerguelen. Cette pecherie exploite la partie sub-adulte et adulte du stock ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 85–106 : Auteur(s): Duhamel, G.

10. A compilation of parameters for ecosystem dynamics models of the Scotia Sea – Antarctic Peninsula region

    – Antarctic Peninsula region Abstract / Description:  Expansion of the krill fishery in the Scotia Sea ... compiles parameters for use in the ecosystem dynamic models that are needed to assess these methods. These ... species that feed on krill in this region. Maximum krill transport rates are also derived from the OCCAM ... are provided where possible. The results suggest that fish are the major krill consumers in all SSMUs ... in penguins and seals than in whales and fi sh. Résumé L’expansion de la pêcherie de krill de la ... Shores Drive La Jolla, CA 92037, USA G.M. Watters Southwest Fisheries Science Center NOAA Fisheries ... région de la mer du Scotia–péninsule antarctique, au-delà de la limite de capture actuellement en ... vigueur, nécessite la mise au point et l’évaluation de méthodes de subdivision de la limite de précaution ...

    Science Journal Paper : CCAMLR Science, Volume 14 (CCAMLR Science, Volume 14) : 1–25 : Auteur(s): Hill, S.L., K. Reid, S.E. Thorpe, J. Hinke and G.M. Watters

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