Résultats de la recherche
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Warp strike observations
. 9%) • The number of small bird heavy contacts was lower, with 306 contacts over the entire survey ... significant factor associated with large bird strikes • Discharging offal increased the large-bird strike rate ... by an estimated factor of 6, compared with no offal discharge • The strike-rate for large-birds ... %) • The discharge of offal was the factor most significantly associated with the recovery of dead and ...
Meeting Document : WG-FSA-05/40 : Auteur(s): E. Abraham (New Zealand)
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Structure and distribution of the slope fish community in the vicinity of the sub-Antarctic Prince Edward Archipelago
average fish diversity and total CPUE positively correlated with the trawling depth. Overall, mean ... . The hierarchal analysis identified three distinct fish assemblages with very pronounced dominant ... species, which occupied different vertical zones with likely specific environmental characteristics. Major ... -/benthopelagic prey. Diet data on 6 species and stable isotopes of 22 fish species revealed that with a few ...
Meeting Document : SC-CAMLR-XXIII/BG/20 : Auteur(s): Delegation of South Africa
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Beach debris survey, Signy Island, South Orkney Islands 2000/2001
seasons, with the proportion of plastic items (56%) being the third highest reported since surveys began ... Signy Research Station. The rest comprised wood (25%) and items with no obvious source (25%). The ... marine debris washed ashore. However, with the exception of 1998/99, the quantity of waste recorded at ... materials with a high resistence to degradation in the marine environment remains a problem and highlights ...
Meeting Document : SC-CAMLR-XX/BG/05 : Auteur(s): Delegation of the United Kingdom
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Stock assessment of the Patagonian toothfish, Dissostichus eleginoides, harvested by the French fishery at Kerguelen Islands (Division 58.5.1 of the CCAMLR)
Island (division 58.5.1 of the CCAMLR) was undertaken with the modeling software CASAL, using different ... iteratively estimated process error was applied to the length frequency data. With an initial biomass of about ... 200,000 tons, the modeling tends to present results which are consistent with the stock assessments ... biomass long-term projection, done for the Patagonian toothfish with a simulated 5,100 tons catch by long ...
Meeting Document : WG-FSA-11/28 : Auteur(s): A. Relot-Stirnemann (France)
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The relative impacts of Autolines and Spanish longlines on vulnerable marine ecosystems
bycatches and the amounts of positive bycatch decreased with depth, but we also found that the rate at which ... positive bycatches decreased with depth was greater for Autolines than for Spanish longlines. Since we ... only analyzed data from areas where there was substantial spatial overlap of sets made with each gear ... type, we attributed the difference in rates at which positive bycatches decreased with depth to a ...
Meeting Document : WG-FSA-12/27 : Auteur(s): T. Gerrodette and G. Watters (USA)
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Seabird by-catch by autoline vessels: do line setters increase the sink rate of integrated weight longlines?
integrated weight longlines? Abstract / Description: Line setters are used with integrated weight (IW) (50 g ... the sink rates of IW longlines. Time-depth recorders were deployed on lines set with and without a ... line setter using a paired-treatment design. Sink rates of longlines set with and without a line setter ... likely to be most intense. Longlines deployed with the line setter entered the water several metres ... setter Magazine set with line setter Magazine join TDRs 3���� m apart and 3���� m from magazine ... . Treatment Target depths (m) 0–2 0–3 0–5 0–10 0–20 With 7.9 12.1 20.4 38.6 76.9 Without 7.4 12.9 20.7 ... , this distance varied from 3 to 4 m but may be up to 8 m with UW long- lines (Løkkeborg and Robertson ... of Fisheries PO Box 1020 Wellington, New Zealand Abstract Line setters are used with integrated ...
Science Journal Paper : CCAMLR Science, Volume 15 (CCAMLR Science, Volume 15) : 107–114 : Auteur(s): Robertson, G., J. Williamson, M. McNeill, S.G. Candy and N. Smith
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Autoliners and seabird by-catch: do line setters increase the sink rate of integrated weight longlines?
Abstract: Line setters are used with integrated weight (50 g/m lead core, IW) by some autoline ... magazines of line set with and without a line setter using a paired treatment design. Sink rates of ... longlines set with and without a line setter were identical, including in the first few metres of the water ... confer no sink rate advantage to IW longlines. Longlines deployed with a line setter enter the water ...
Meeting Document : WG-FSA-07/13 : Auteur(s): G. Robertson (Australia), J. Williamson, M. McNeill (New Zealand), S. Candy (Australia) and N. Smith (New Zealand)
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A circumpolar pelagic regionalisation of the Southern Ocean
series of latitudinal bands in open ocean areas, consistent with the oceanic fronts. Around islands and ... results are broadly consistent with the earlier circumpolar results of Grant et al. (2006) and regional ... information. The results show a series of latitudinal bands in open ocean areas, consistent with the oceanic ... variations in depth and sea ice. The results are broadly consistent with the earlier circumpolar results of ...
Meeting Document : WS-MPA-11/06 : Auteur(s): B. Raymond (Australia)
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PROPERTIES OF WATER DYNAMICS AND KRILL DISTRIBUTION IN THE SOUTH SANDWICH ISLANDS SUBAREA
with increased density. These zones are located within the near-shore shelf-based SSMU and associated ... with meanders and eddy favorable for krill concentration. Here, in the cold water of the Weddell Sea ... than 150 g/m2.. Properties of the zones with increased density: these zones are associated with ...
Meeting Document : WG-EMM-09/44 Rev. 1 : Auteur(s): S.M. Kasatkina and V.N. Shnar (Russia)
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LIFE HISTORY BUFFERING IN ANTARCTIC MAMMALS AND BIRDS AGAINST CHANGING PATTERNS OF CLIMATE AND ENVIRONMENTAL VARIATION
, associated with climate variability observed since 1990, has limited and rendered less predictable the main ... . Changes occur now with a frequency higher than the mean female fur seal generation time, and therefore are ... cope with short-term changes in order to maximize individual fitness. With more frequent extreme ... Antarctic birds and mammals are likely to increase, particularly at regional scales. In species with less ...
Meeting Document : WG-EMM-08/P05 : Auteur(s): J. Forcada, P.N. Trathan and E.J. Murphy