Résultats de la recherche
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Atlas of top predators from French Southern Territories in the Southern Indian Ocean
Antarctica (Prydz Bay- Queen Maud Land sectors, Adelie Land sector). The analysis of distribution indicates ... be the primary targets of site-based conservation efforts in the near future. The Southern Indian ... studied from land base sites, making them the most accessible convenient models to study marine ecosystems ... that have to come on land to reproduce. Therefore, they are the only marine top predators that can be ...
Meeting Document : WG-EMM-16/42 : Auteur(s): K. Delord, C. Barbraud, C.-A. Bost, Y. Cherel,C. Guinet and H. Weimerskirch
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A drone-based Antarctic fur seal (Arctocephalus gazella) census of the St. Telmo Islands, South Shetland Archipelago
to synoptically survey all known and potential breeding sites across the South Shetland Islands as ... to obtain in remote polar environments. The standard approach for income breeding pinnipeds, such as ... the Antarctic fur seal (Arctocephalus gazella), is to annually survey pup production. Fur seal ... population dynamics in the South Shetland archipelago are largely driven by two breeding colonies, Cape ...
Meeting Document : WG-EMM-2019/65 : Auteur(s): D.J. Krause and M.E. Goebel
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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
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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.
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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
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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
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REVIEW OF CCAMLR ACTIVITIES ON MONITORING MARINE DEBRIS IN THE CONVENTION AREA
Bird Island, South Georgia over the last 10 years, but only small amounts from the other sites. Plastic ... sites monitored. The 2009 season reported lower amounts of debris at all sites, except King George ... in Area 48. Overall non-fishing debris items (mostly packaging items) have made up the majority of ... . The most common entangling materials were plastic packaging bands, synthetic string/longline and ...
Meeting Document : WG-IMAF-09/08 : Auteur(s): Secretariat
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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.
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Preliminary results of investigations into the stock structure of Patagonian toothfish (Dissostichus eleginoides) around Macquarie Island
from the two sites are not homogeneous at the 5% probability level. While the other three loci did not ... genetic analyses that interchange of fish between the two sites is very low. Of 469 recaptures at both ... sites combined, only one fish had moved between sites. As the DNA analysis has so far only been ... Abstract: Studies on DNA microsatellites and a tagging programme both provide information on the ...
Meeting Document : WG-FSA-98/39 : Auteur(s): A. Reilly, B. Ward and R. Williams (Australia)
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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