Resultados de la búsqueda
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Flexible foraging strategies of gentoo penguins help buffer the impacts of inter-annual changes in prey availability
Shetland Islands, Antarctica, over five years. Antarctic krill Euphausia superba was the primary diet item ... , and fish the secondary, though the importance of these items varied among years. Diving behavior also ... -rearing success remained relatively constant, indicating that gentoo penguins were able to cope with ... differences in prey availability by altering their foraging strategy among years. We suggest that this ...
Meeting Document : WG-EMM-08/50 : Autor(es): A.K. Miller and W.Z. Trivelpiece (USA)
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CDS Implementation and Data Analysis
and one NCP cooperating with CCAMLR by participating in the CDS, and one NCP with limited access to ... the CDS data was undertaken for 2018 and 2019. Across both years Chile had the greatest number of DCDs ... landings and exports and greatest quantity of exports (4 644 tonnes and 2 539 tonnes). For both years ... imports was by the United States of America (USA) in both years, followed by China. Analysis of supply ...
Meeting Document : CCAMLR-38/BG/10 Rev. 2 : Autor(es): CCAMLR Secretariat
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Temperature-dependent growth of Thysanoessa macrura: inter-annual and spatial variability
than in Weddell Sea water during all years. Growth rates were strongly correlated with temperature but ... . We analyzed data from four separate years (1995, 1998, 2001, 2004) that varied widely in temperature ... growth. Growth rates of T. macrura varied between years and water masses, ranging from-0.037 mm day-1 in ... were not significantly correlated with chl-a concentration. These results suggest that the growth rates ...
Meeting Document : WG-EMM-13/39 : Autor(es): R.M. Driscoll, C.S. Reiss and B.T. Hentschel (USA)
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Conservation Measure Conservation Measure 24-02 (2005)
with a minimum of four TDRs on the middle one-third of each longline, where: (a) for vessels using ... longlines with a minimum of four bottle tests (see paragraphs B5 to B9) on the middle one-third of each ... Measure 25-02 shall not apply only where a vessel can demonstrate its ability to fully comply with one of ... the following protocols. Protocol A (for vessels monitoring longline sink rate with Time-Depth ...
Conservation Measure : 24-02 (2005)
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Krill biomass estimates for South Georgia, December and January 1996/97
eastern and western survey boxes were 36.1 mm and 45.4 mm respectively. These lengths were used to derive ... (18.44) for the eastern and western boxes respectively. These mean density values were similar to those ...
Meeting Document : WG-EMM-97/48 : Autor(es): Goss, C., Watkins, J.L., Brierley, A.S.
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A preliminary population status model for the Patagonian toothfish, Dissostichus eleginoides, on the Kerguelen Plateau (Divisions 58.5.1 and 58.5.2) using CASAL
. Preliminary results indicate that illegal fishing in the late 1990s and early 2000s lead to a rapid decline in ... substantial decline in catch rates seen in the French EEZ concurrent with illegal activities are poor ... , indicating that the SSB0 and stock status estimates still need to be interpreted with caution. Continuing pre ...
Meeting Document : WG-SAM-11/20 : Autor(es): S.G. Candy (Australia), A. Relot, G. Duhamel (France), D.C. Welsford, A.J. Constable, T.D. Lamb (Australia), P. Pruvost and N. Gasco (France)
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Krill biomass and distribution in Subarea 48.2 during summer 1996
density in the day-time amounted to 30.4 g/sq.m are comparable with density values, observed in the ... early summer season krill density may be higher. Krill biomass estimate (1.12 ± 0.093 mln.t) in acoustic ... biomass amounted to 2.00 ± 0.573 mln.t with a coefficient of variance 12.5%. Author(s): Kasatkina, S.M ...
Meeting Document : WG-EMM-97/49 : Autor(es): Kasatkina, S.M., Abramov, A.M., Polischuk, M.I., Sushin, V.A.
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Results of the first winter longline survey to the northern Ross Sea region to investigate toothfish reproductive life history
aggregate earlier than females and that spawning begins in early July. There were a higher proportion of ... reared for several days in flow through incubators. Egg buoyancy measurements, conducted with fertilised ... eggs in density gradient cylinders, are being analysed and compared with CTD data to indicate the depth ...
Meeting Document : WG-FSA-16/37 : Autor(es): D. Stevens, D. Di Blasi and S. Parker
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Transparency
6.1.1.1 The RP acknowledged CCAMLR’s efforts to engage with a wide range of Observers and encouraged ... , particularly through the engagement of Observers at its annual meetings. Options to improve transparency with ... consider aligning the Rules of Procedure of the Scientific Committee with those of the Commission with ... discussed. Commission – In progress – early steps 6.1.2 Extent to which CCAMLR decisions, meeting reports ...
Page : Site Section: The Organisation
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An assessment of the mackerel icefish (Champsocephalus gunnari) off Heard Island
these figures with the growth curve shows that the age at first spawning is three years. WEIGHT ... though virtually no pre-spawning 2-year-old fish were taken with this gear in 1997, the proportion of ... recent trawl survey gives a biomass estimate of about 50 000 tonnes, with two strong year classes in ... years from the two abundant cohorts of 1 500 tonnes, comprising 900 tonnes in the first year and 600 ...
Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 79–101 : Autor(es): de la Mare, W.K., R. Williams and A.J. Constable