Résultats de la recherche
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Line weights of constant mass (and sink rates) for Spanish-rig Patagonian toothfish longline vessels
method (a modified version of the former method to avoid fish loss by toothed whales) were examined in ... hydrodynamic than their rocks counterparts and require no maintenance. An experiment was conducted on a ...
Meeting Document : WG-FSA-07/15 : Auteur(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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An integrated assessment model for Antarctic krill: progress update
whether a narrow or wide version of the age-length transition matrix was used. The biomass data calculated ... weighted, by whether natural mortality was estimated by the model or pre-assigned a value of 0.8, and by ...
Meeting Document : WG-EMM-12/27 : Auteur(s): D. Kinzey, G. Watters and C. Reiss (USA)
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Yet further krill yield computations
Abstract: Preliminary computations are carried out for the krill yield model of Butterworth et al ... from those of comparative calculations in Butterworth et al. (1993), except at higher harvesting ...
Meeting Document : WG-Krill-94/23 : Auteur(s): R.B. Thomson and D.S. Butterworth (South Africa)
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Development of the Southern Ocean Continuous Plankton Recorder survey
the North Sea and North Atlantic Ocean. Sixty-five years later the CPR as a Type II version returned ... to Antarctic waters when the Australian Antarctic Division initiated a survey of the Southern Ocean ... patterns, as well as the annual abundance and distribution of krill larvae. The survey covers a large area ... icebreaker Shirase in collaboration with the Japanese Antarctic programme. Shirase has a fixed route and time ...
Meeting Document : WS-BSO-07/P4 : Auteur(s): Hosie, G., M. Fukuchi and S. Kawaguchi
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An introduction to the Southern Ocean Observing System (Paper XP18 to CEP–SC-CAMLR Workshop 2016)
) for observing dynamics and change in Southern Ocean ecosystems (Constable et al. 2016). These ... Antarctic Peninsula and one for the Indian Sector. A Ross Sea Working Group is in the process of being ... main topics described here that SC-CAMLR and CEP may be interested in participating and/or developing a ... spatial and temporal design of a sustained circumpolar marine biological observing system in SOOS, which ...
Meeting Document : WG-EMM-16/70 : Auteur(s): A.J. Constable, L. Newmman, O. Schofield, A. Wahlin and S. Swart
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Improvements to the multiple-frequency method for in situ target strength measurements
echosounders (Demer et al., J. Acoust. Soc. Am. 105(4) 2359:2376 (1999)]. The multiple-frequency method ... controlled test tank experiments using 38 and 120 kHz split-beam transducers and a 200 kHz single-beam ...
Meeting Document : WG-EMM-99/38 : Auteur(s): D.A. Demer (USA) and M.A. Soule (South Africa)
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Preliminary examination of otolith microchemistry to determine stock structure in Antarctic toothfish (Dissostichus mawsoni) between SSRU 88.1C and 88.2H
stocks among these regions. For the elements (Mg, Al and Sr) spatial variation in otolith chemistry was ... . However, given these analyses only included adults, further investigations using a larger sample base of ...
Meeting Document : WG-SAM-14/33 : Auteur(s): R. Tana, B.J. Hicks, C. Pilditch and S.M. Hanchet (New Zealand)
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Characterising the preferred at-sea habitats used by chinstrap penguins and the fishery for Antarctic krill: slow-flowing, nearshore waters over shallow bathymetry
Abstract: We show that the preferred habitat models developed by Warwick-Evans et al. (2017) for ... to 150 m) oceanographic flows derived from a high resolution oceanographic model developed using NEMO ... canyons occur near to a number of preferred krill fishing locations, suggesting that these canyons ... how krill movement can satisfy the demands of both predators and the fishery across a range of spatial ...
Meeting Document : WG-EMM-17/34 : Auteur(s): P.N. Trathan, V. Warwick-Evans, J. Hinke, E.F. Young, A.P.B. Carneiro, M.P. Dias, K. Kovacs, O.R. Godø and M. Santos
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Bioregionalisation and spatial ecosystem processes in the Ross Sea region
in previous CCAMLR Bioregionalisation workshops (Grant et al. 2006, SC-CAMLR XXVI/9), i.e. automated ... . networks of Marine Protected Areas, or MPAs). In 2008 CCAMLR utilized a circumpolar-scale ... ‘bioregionalisation’ to identify areas within which MPA designation should be considered as a matter of high priority ... 2009 the CCAMLR Scientific Committee agreed a series of milestones to achieve a representative network ...
Meeting Document : WG-EMM-10/30 : Auteur(s): B.R. Sharp, S.J. Parker, M.H. Pinkerton (New Zealand) (lead authors) also B.B. Breen, V. Cummings, A. Dunn (New Zealand), S.M. Grant (United Kingdom), S.M. Hanchet, H.J.R. Keys (New Zealand), S.J. Lockhart (USA), P. O’B. Lyver, R.L. O’Driscoll, M.J.M. Williams, P.R. Wilson (New Zealand)
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The winter distribution of Adélie and chinstrap penguins from two breeding colonies in the South Shetland Islands of Antarctica
only other record of a chinstrap penguin’s winter migration reported by Wilson et al. (1998). Three ... penguins from a breeding site in Admiralty Bay, King George Island (62° 10’ S, 58° 30’ W) were instrumented ... ). All five chinstrap penguins were tracked for a minimum of three months each, while one bird was ... summer may have vastly different migratory behaviors in winter. This may be a strategy evolved to avoid ...
Meeting Document : WG-EMM-02/55 : Auteur(s): S.G. Trivelpiece and W.Z. Trivelpiece (USA)