Search results
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Line weights of constant mass (and sink rates) for Spanish-rig Patagonian toothfish longline vessels
depth, which would be equal to or exceeded by lines with 5 kg steel weights. Sink rates of Chilean ... kg weights at 40 m intervals on longlines to minimise interactions with seabirds. The weights are ... weights become progressively lighter, requiring ongoing weighing and repair. This problem can be solved by ... equipped with bags of rocks (4 kg, 6 kg and 8 kg) and lines with steel weights of equivalent masses. The ...
Meeting Document : WG-FSA-07/15 : Author(s): G. Robertson (Australia), C.A. Moreno, E. Gutiérrez (Chile), S.G. Candy (Australia), E.F. Melvin (USA) and J.P. Seco Pon (Argentina)
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Is toothfish catch correlated with the catch of vulnerable benthic invertebrate taxa?
fishing would be higher than if VMEs are distributed randomly with respect to fishing locations. This ... footprint. If high target fish catch rates are associated with habitats where VMEs are found, impacts from ... evidence that the presence of any of six VME taxa was related to Antarctic toothfish catch at the scale of ... scales (10–100 km) would be useful to determine if both toothfish and individual VME taxa have regionally ...
Meeting Document : WG-EMM-10/27 : Author(s): S.J. Parker and M.H. Smith (New Zealand)
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Conservation Measure Conservation Measure 119/XX (2001)
in Force: 2001- 2004 ... -02 (2001)1,2 Licensing and Inspection Obligations of Contracting Parties with regard to their Flag ...
Conservation Measure : 119/XX (2001)
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Breeding numbers and success of Eudyptes penguins at Marion Island, and the influence of mass and time of arrival of adults
International, 2000; Woehler et al., 2001; Bingham, 2002; Clausen and Huin, 2003; Puetz et al., 2003 ... 2000/01 18 Nov 18 Nov 18 Nov 11 Dec 11 Dec 11 Dec 2001/02 7 Dec 16 Nov 16 Nov 7 Dec 7 Dec 7 Dec 2002 ... 250 2001/02 2 Oct 100 10 Oct 100 7 Feb 250 2002/03 2 Oct 100 11 Oct 100 7–8 Feb 250 2003/04 ... 100 7 Nov 100 2–5 Mar 250 2001/02 3 Nov 100 7 Nov 102 28 Feb–3 Mar 250 2002/03 8 Nov 100 14 Nov 80 ... with that of females. Although both species had low masses on arrival after the El Niño Southern ... filholi) over 22 years, suggesting that overwintering conditions may influence the proportions of birds ... foraging range than rockhopper penguins when breeding, and may be more influenced at this stage by wider ... -scale environmental phenomena. For macaroni penguins, breeding success was significantly correlated with ...
Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 175–190 : Author(s): Crawford, R.J.M., B.M. Dyer, J. Cooper and L.G. Underhill
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Evaluation of krill transport factor results in Subarea 48.2 in summer period of 1996
-200 m: krill density (t/cubic mile) and water output (cubic mile/hour) through 1 mile of the polygon ... boundary per hour. The value (t/hour) characterizes transport intensity of krill biomass through 1 mile of ... =7.2 t/hour, s.d.=15.5 t/hour. There is sufficient variability of krill transport through polygon ... input-output through all the polygon boundaries was positive (2088 ±831 t/hour). The obtained values of ...
Meeting Document : WG-EMM-96/37 : Author(s): Sushin, V.A., Kasatkina, S.M., Shnar, V.N., Abramov, A.M., Polischuk, M.I.
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Conserving surface-nesting seabirds at the Prince Edward Islands: the roles of research, monitoring and legislation
regionally or internationally. The main causes of population decreases are thought to be by-catch mortality ... availability of prey to penguins and the Crozet shag Phalacrocorax [atriceps] melanogenis. It is proposed that ... the Prince Edward Islands Special Nature Reserve be expanded to include surrounding territorial waters ... near to the islands. Consideration needs also to be given to listing species as threatened or protected ...
Meeting Document : WG-EMM-03/14 : Author(s): R.J.M. Crawford and J. Cooper (South Africa)
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Circumpolar connections between Antarctic krill (Euphausia superba Dana) populations: Investigating the roles of ocean and sea ice transport
. Here we present Lagrangian modelling studies at the circumpolar scale that include interaction with sea ... that the Antarctic Coastal Current is likely to be important in generating the large-scale distribution ... in the Southern Ocean. Krill have a close association with sea ice which provides access to a ... Modelling (OCCAM) project model together with satellite-derived sea ice motion vectors to examine the ...
Meeting Document : WG-EMM-07/P10 : Author(s): S.E. Thorpe, E.J. Murphy and J.L. Watkins (United Kingdom)
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An updated spatially explicit population dynamics operating model for Antarctic toothfish in the habitable depths of the Ross Sea region
unsatisfactory in previous models, with a much flatter maturity ogive than that derived through histology. In the ... . We propose that the modelling platform presented here can be used to test the likelihood and examine ... that a proportion of the mature fish spawn each year. The model estimation of the maturity ogive is now ... similar to that estimated by histological analysis. This model represents our current best model of the ...
Meeting Document : WG-SAM-14/31 : Author(s): S. Mormede, A. Dunn, S. Parker and S. Hanchet (New Zealand)
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Characteristics of krill aggregations in the South Sandwich Islands subarea in January–February 2000
et al. (2002), Trathan et al. (2001) and SC-CAMLR (2000). Maps of survey tracks and trawl station ... in 3-dimensional space 0.021 0.164 0.039 Estimates of trawl catchability 0.049 0.07 0.043 Calculated catch per ... , S. Kawaguchi, V. Sushin, S.M. Kasatkina, S. Hedley, S. Kim and T. Pauly. 2001. The CCAMLR-2000 Krill Synoptic ... million tonnes. It was shown that the removal of biomass up to a recommended precautionary limit could be ... February 2000 it was observed that krill was present in non-aggregated and scattered forms, as well as in ... patterns of krill aggregations and distribution of krill biomass density were analysed with a view to ... detecting potential fishing grounds where the recommended precautionary catch limit could be taken. Such ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 145–164 : Author(s): Kasatkina, S.M., A.P. Malyshko, V.N. Shnar and O.A. Berezhinsky
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Impacts of cetaceans on the structure of Southern Ocean food webs
, in part, researchers are preoccupied with physical factors as ecosystem drivers, i.e. climate, that ... Abstract: Here we present three scenarios that demonstrate how cetaceans may influence the ... structure and dynamics of the Southern Ocean food web. These should be considered in addition to several ... nonetheless contend that they indicate fruitful directions for current and future research in the Southern ...
Meeting Document : WG-EMM-09/P04 : Author(s): D. Ainley, G. Ballard, L.K. Blight, S. Ackley, S.D. Emslie, A. Lescroël, S. Olmastroni, S.E. Townsend, C.T. Tynan, P. Wilson and E. Woehler