Resultados de la búsqueda
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Age and growth of Scotia Sea icefish Chaenocephalus aceratus (Lönnberg, 1906), from the South Shetland Islands
observed in other recent surveys within the same area, C. aceratus represented one of the predominant ... % of their maximum estimated age. These results are compared with age and growth data available in the ... literature for C. aceratus, and discussed in the light of recent commercial exploitation. Author(s): M. La ... around the South Shetland Islands in the austral summer 2002 (January-February). Fish were caught by ...
Meeting Document : WG-FSA-02/77 : Autor(es): M. La Mesa, J. Ashford, E. Larson and M. Vacchi
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REPORT ON ACTIVITIES OF THE SCIENTIFIC COMMITTEE ON ANTARCTIC RESEARCH (SCAR) 2007/08
Environment of the Antarctic”. The 10th SCAR International Biology Symposium will be held in Sapporo from 26 ... reports on progress with the Evolution and Biodiversity in the Antarctic (EBA) programme, SCAR-MarBIN, the ... Southern Ocean Continuous Plankton Recorder Survey and the Census of Antarctic Marine Life (CAML) project ... data portal continues to gather information on marine biodiversity in the Antarctic and the CPR Survey ...
Meeting Document : CCAMLR-XXVII/BG/42 : Autor(es): SCAR Observer to CCAMLR (G. Hosie, Australia)
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First global census of the Adélie penguin
colonizations. These recent colonizations represent approximately 5% of the increase in known breeding ... Abstract: We report on the first global census of the Adélie Penguin (Pygoscelis adeliae ... % larger (3.79 million breeding pairs) than the last estimate in 1993. We provide the first abundance ... population and provide insight into the ability of these highly philopatric seabirds to colonize new breeding ...
Meeting Document : WG-EMM-14/P05 : Autor(es): H.J. Lynch and M.A. LaRue
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Autoliners and seabird by-catch: do line setters increase the sink rate of integrated weight longlines?
longlines set with and without a line setter were identical, including in the first few metres of the water ... vessels in the Kerguelen and Crozet Islands Patagonian toothfish fisheries to deter seabirds, ostensibly ... by expediting gear sink rates. A trial was conducted in the Ross Sea in 2007 to determine the ... effectiveness of line setters in increasing sink rates of IW longlines. Time-depth recorders were deployed along ...
Meeting Document : WG-FSA-07/13 : Autor(es): G. Robertson (Australia), J. Williamson, M. McNeill (New Zealand), S. Candy (Australia) and N. Smith (New Zealand)
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Review of depredation mitigation methods applied within the CCAMLR Statistical Area
sound, the physical protection of the catch by nets, hooks or wires or changes in fishing practise such ... of different length. However, deterrents and in particular acoustic deterrents have the potential to ... growing issue in fisheries around the world. Within the CCAMLR management killer whales and to a lesser ... measures employed in the CCAMLR management area and their potential for disruption both in target and non ...
Meeting Document : WG-SAM-15/28 : Autor(es): R. Faulkner, N. Edmonds and M. Soeffker (United Kingdom)
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Using carapace measurements to determine the sex of Antarctic krill (Euphausia superba)
populations. The equations have been applied to fur seal diet studies in the South Shetlands but until now ... validating the use of discriminant functions to determine sex of krill based on carapace length and width and ... independently derives sex-specific regression models for krill collected in the South Shetlands. Allometric ... derived from mature krill in years following significant recruitment events with large proportions of ...
Meeting Document : WG-EMM-05/26 : Autor(es): J.D. Lipsky, M.E. Goebel, C.S. Reiss and V. Loeb (USA)
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An assessment of longlining operations for Dissostichus eleginoides on board the Chilean-registered longliner BF Cisne Verde during March–May 1997 around South Georgia (Subarea 48.3)
only 24% in the female population. The mean daily loss rate of toothfish observed at the hauling point ... maturity was also larger. The proportion of mature fish in the male population sampled was 52.0%, but was ... was only 0.8% of the mean daily catch rate; total by-catch by numbers was less than 5%. Consistent ... sampling method; the known number of coils laid during a night's setting operations provided the ...
Meeting Document : WG-FSA-97/41 : Autor(es): Ashford, J.R., Everson, I.
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Factors affecting the growth rate and mass at weaning of Antarctic fur seal pups at Bird Island, South Georgia
the pups influenced the nature and magnitude of sex differences in estimated growth rates. Growth ... conditions that normally exist, individual differences in the growth of pups are most likely influenced by ... foraging trips, and the mean duration of both foraging trips at sea and nursing visits ashore on the growth ... Abstract: We studied the influence of sex of pup, maternal age, birth date of pup, number of ...
Meeting Document : WG-CEMP-93/09 : Autor(es): N.J. Lunn, I.L. Boyd, T. Barton and J.P. Croxall (United Kingdom)
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Is population structure of Patagonian toothfish (Dissostichus eleginoides) determined by the Antarctic Circumpolar Current?
of the ACC, and off Kerguelen and South Georgia Islands, situated respectively in the southern Indian ... Abstract: Water transported by the Antarctic Circumpolar Current (ACC) in the Southern Ocean may ... off the southern South American continent around the Falkland Islands north of the Sub-Antarctic Front ... and Atlantic Oceans to the south of the Polar Front. We fitted von Bertalanffy (VB) models ...
Meeting Document : WG-FSA-03/84 : Autor(es): J.R. Ashford, C.M. Jones, E. Hofmann (USA), I. Everson (United Kingdom) and G. Duhamel (France)
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Development of a five-year work plan for the CCAMLR Scientific Committee
the first stage in the development of the five-year work plan and draws on recommendations arising ... Committee should be developed for consideration by the Scientific Committee in 2017 (SC-CAMLR-XXXV ... , paragraphs 13.8 to 13.20). It was agreed that the work should be led by the Chair of the Scientific Committee ... with input from the conveners of its working groups and that it should be made available for ...
Meeting Document : WG-EMM-17/02 : Autor(es): M. Belchier (Chair of SC-CAMLR)