Résultats de la recherche

1. Low genetic diversity in the Antarctic toothfish (Dissostichus mawsoni) observed with mitochondrial and intron DNA markers

   digested with the restriction enzymes, but there was no population differentiation among the three sea ... Paper Title:  Low genetic diversity in the Antarctic toothfish (Dissostichus mawsoni) observed ... appeared to be characterised by low diversity; no genetic variation was detected with restriction enzyme ... digests of nine sub-regions of the mitochondrial genome. Polymorphisms were found in four of seven introns ... were found in four of seven introns digested with the restriction enzymes, but there was no population ... MtDNA RFLPs No genetic variation was detected with the RFLP method for the nine regions of mtDNA in ... the 57 available sequences. Analysis of molecular variance (AMOVA) showed no signifi cant dif fer- en ... Rousset, 1995). There was no signifi cant heterogeneity at any of the loci (CK6 χ2 = 2.36, P = 0.31; CK7 ...

   Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 43–51 : Auteur(s): Smith, P.J. and P.M. Gaffney

2. Assessing the power to detect systematic change in Adélie penguin foraging trip duration

   Paper Title:  Assessing the power to detect systematic change in Adélie penguin foraging trip ... variation was known to occur. Variability among trips and penguins was greater in the crèche stage, but ... variability among years was greater in the guard stage. Estimates of variability were used to explore the ... greater in the crèche stage than the guard stage. The gain obtained by increasing the number of penguins ... ), near Mawson Station in East Antarctica. No krill fishery was operating in the region during that time ... preliminary analy- sis showed no evidence of a systematic trend over the pre-impact years, all year-to-year ... trend change in foraging trip duration across the b post-impact years, but there is no change in vari ... no change up to year a (i.e. the pre- impact years) versus the alternative of an increase in mean of ...

   Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 201–215 : Auteur(s): Southwell, C., J. Clarke and L.M. Emmerson

3. Myctophids in the diet of Antarctic predators

   Paper Title:  Myctophids in the diet of Antarctic predators Abstract / Description:  The aim of ... the present study is to review published data on the diet of various top predators (birds, seals ... , whales, fish and squids) in order to help evaluate the importance of myctophids in their diets. This ... review covers publications for the period since 1984-85 to the present. In total, over 50 publications ... species of seals (Table 1). No myctophids were reported from studies of whale diets in the Antarctic ... Bank). On the Antarctic coast myctophids were reported from samples taken in the Prydz Bay area, Budd ... APF area of the Indian Ocean. Unfortunately no quantitative data are available on the diet of king ... , No 2:40-57 COOPER, J. and N.T.W. KLAGES. (In press). The diets and dietary segregation of sooty ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 335–368 : Auteur(s): Sabourenkov, E.

4. The 1991/92 fishery for Dissostichus eleginoides in Subarea 48.3

   Paper Title:  The 1991/92 fishery for Dissostichus eleginoides in Subarea 48.3 Abstract ... / Description:  The 1991/92 longline fishery for Dissostichus eleginoides in Subarea 48.3 was open from 4 ... Chilean vessels. The maximum catch taken in a five-day period was 375 tonnes. Catch rate was not ... position. Fish caught around Shag Rocks were larger than to the north and southeast of South Georgia. CPUE ... was no significant correlation between the time that hooks were in the water and the number of fish ... appears that the strategies shown in Figure 3 have no bearing on 32 expected catch rates and are ... : a review. BIOMASS Scientific Series, No. 6. MORENO, C.A. 1991. Hook selectivity in the longline ... choice of appropriate sites for setting the longlines, even within the generalised areas shown in Figure ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 31–48 : Auteur(s): Agnew, D.J. and C.A. Moreno

5. An assessment of the merits of length and weight measurements of Antarctic krill Euphausia superba

   Paper Title:  An assessment of the merits of length and weight measurements of Antarctic krill ... the relationships of three length measurements to wet and dry weight as functions of sex, maturity ... stage and moult stage. The range of coefficients and exponents for these relationships are examined and ... an example given to indicate the potential such variation has for introducing error into estimates of ... - 371 - SC-CAMLR-VI/BG/33 AN ASSESSMENT OF THE MERITS ... Antarctic krill Euphausia superba Dana are standardised with new data on the relationships of three length ... measurements to wet and dry weight as functions of sex, maturity stage and moult stage. The range of ... coefficients and exponents for these relationships are examined and an example given to indicate the ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 371-373 : Auteur(s): Morris D.J., J.L. Watkins, C. Ricketts, F. Buchholz, and J. Priddle

6. Estimation of krill (Euphausia superba) mortality and production rate in the Antarctic Peninsula region

   Paper Title:  Estimation of krill (Euphausia superba) mortality and production rate in the ... Meteor along the Antarctic Peninsula from 26 December 1989 to 14 January 1990. Results were compared with ... ratio of 0.88 to 0.94 for different years. The exchange rate of water masses and krill biomass within ... biomass (including production) of 4.3 and 5.0 x 10 6 tonnes passing through the survey area during the ... , that there was no indication of a continued trend for the decrease in krill mortality rate ... transported with the mean current speed and no retention occurs by meanders or eddies. Under these ... ) in the Prydz Bay region, Antarctica. Polar Bioi. 8: 213-224. 168 KAWAKAMI, T. and T. DOl. 1979 ... . STEPNIK, J.C. 1982. All-year populational studies of Euphausiacea (Crustacea) in the Admiralty Bay (King ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 159–176 : Auteur(s): Siegel, V.

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

   Paper Title:  A compilation of parameters for ecosystem dynamics models of the Scotia Sea ... – Antarctic Peninsula region Abstract / Description:  Expansion of the krill fishery in the Scotia Sea ... –Antarctic Peninsula region beyond the current operational catch limit requires the development and ... assessment of methods for subdividing the precautionary catch limit amongst smaller spatial units. This paper ... no krill transport between SSMUs ver- sus the transport of krill as passive drifters. A more extreme ... diffusion. The scheme applies a no-slip boundary condition at coasts and, once particles leave the model ... domain, they take no further part in the simulations. Particles were released on a regular grid within ... matrices imply trans- port between non-adjacent SSMUs with no infor- mation on the intermediate SSMUs that ...

   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

8. Fish distribution and biomass in the Heard Island zone (Division 58.5.2)

   Paper Title:  Fish distribution and biomass in the Heard Island zone (Division 58.5.2) Abstract ... / Description:  Division 58.5.2 encompasses the southern part of the Kerguelen plateau, and contains Heard ... Island and the McDonald Islands, an Australian Territory around which a 200-mile EEZ has been declared ... . In order to assess the potential of this area for commercial fishing, and to obtain some preliminary ... area, with the proviso that no stratum had less than five trawls. Within each stratum, trawl sites ... that there is no reason to suppose that differences in the estimates reflect anything other than ... were chosen at random by computer, with the minimum distance between sites of 5 n miles. For each ... stratum a list of reserve sites was compiled by the same method, to be used if any of the primary sites ...

   Science Journal Paper : CCAMLR Science, Volume 2 (CCAMLR Science, Volume 2) : 1–20 : Auteur(s): Williams, R. and W.K. de la Mare

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

   Paper Title:  Demographic characteristics of the Adélie penguin population on Béchervaise Island ... , fecundity levels and population numbers) were analysed for the Béchervaise Island Adélie penguin colony in ... eastern Antarctica after 12 years of monitoring under the CCAMLR Ecosystem Monitoring Program (CEMP). A ... . The population model predicted an annual population growth rate of 0.3% compared to the 1.2–1.8 ... considered valid on the basis that no signifi cant differences in survival between age classes were evident ... of population growth, a stable age structure and no density-dependent constraints. For the ... (2003): 53–74 53 DEMOGRAPHIC CHARACTERISTICS OF THE ADÉLIE PENGUIN POPULATION ON BÉCHERVAISE ISLAND ... for the Béchervaise Island Adélie penguin colony in eastern Antarctica after 12 years of monitoring ...

   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

10. By-catch, growth and feeding of Antarctic juvenile fish taken in krill (Euphausia superba Dana) fisheries in the South Georgia area, in 1992

    superba Dana) fisheries in the South Georgia area, in 1992 Abstract / Description:  This paper discusses ... an investigation of juvenile Antarctic fish caught during krill fishing by the FV Grigory Kovtun in ... the area around South Georgia from May to July 1992. Two species were predominant in the by-catches ... : Champsocephalus gunnari and Nototheniops larseni. The frequency of occurrence of juvenile fish was 18.2% when all ... ) recorded juvenile fish in all krill hauls in the Prydz Bay region (Table 2). During the period May to ... vessel because no commercial fishery had as yet commenced in the area (CCAMLR, 1991). On the other hand ... FEEDING OF ANTARCTIC JUVENILE FISH TAKEN IN KRILL (EUPHAUSIA SUPERBA DANA) FISHERIES IN THE SOUTH GEORGIA ... caught during krill fishing by the FV Grigoy Kovtun in the area around South Georgia from May to July ...

    Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 129–142 : Auteur(s): Pakhomov, E.A. and S.A. Pankratov

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