Résultats de la recherche
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WG-FSA-SAM-06
toothfish at South Georgia R.M. Hillary and D.J. Agnew (United Kingdom) WG-FSA-SAM-06/07 A von Bertalanffy ... growth model for Division 58.5.2 fitted to length-at-age data and a comparison of predicted with observed ... ) in the Ross Sea A. Dunn, P.L. Horn and S.M. Hanchet (New Zealand) WG-FSA-SAM-06/09 A descriptive ... analysis of the toothfish (Dissostichus spp.) tagging programme in the Ross Sea up to 2005/06 A. Dunn and ...
Meeting
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Abundance and trends of Type B killer whales (Orcinus orca) around the western Antarctic Peninsula
impact of these physical changes on the marine ecosystem. The WAP is surrounded by a complex marine food ... web involving a number of predator and prey populations, and empirical data on abundance and trends is ... ecotypes (Types B1, B2 and A). Here we report on the movement patterns and abundance of both forms of Type ... B killer whales: a larger mammal-eating form (B1) that apparently specializes on hunting ice seals ...
Meeting Document : WG-EMM-18/16 : Auteur(s): H. Fearnbach, J.W. Durban, D.K. Ellifrit and R.L. Pitman
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Towards an initial operational management procedure for the krill fishery in Subareas 48.1, 48.2 and 48.3
requires a basis for the assessment of resource status, and an algorithm for specifying the levels of ... regulatory mechanisms (e.g. a catch control law) that depends on the results of the assessment. Developing ... and selecting a procedure requires a basis for the simulation testing of procedures, and an ... restricted to an initial ceiling (Cc) for a 5 year period, with a reference CPUE level (CPUEref) calculated ...
Meeting Document : SC-CAMLR-VIII/BG/17 : Auteur(s): Delegation of South Africa
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Management Plan for Antarctic Specially Protected Area (ASPA) No. XYX, Edmonson Point, Wood Bay, Victoria Land, Ross Sea
-free areas in Northern Victoria Land and was first identified in the 1980s as a site that could merit ... special protection. The site is representative in the sense that a wide range of freshwater habitats is ... unusually well-developed and the site is a good example of an Adélie penguin (Pygoscelis adeliae) and south ... polar skua (Catharacta maccormicki) assemblage. Edmonson Point includes a Weddell seal (Leptonychotes ...
Meeting Document : WG-EMM-05/7 : Auteur(s): Delegation of Italy
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Identifying marine protected areas (MPAs) in data-poor regions to conserve biodiversity and to monitor ecosystem change: an Antarctic case study
Abstract: The World Summit on Sustainable Development implementation plan requires, by 2012, a ... biodiversity. A great challenge for meeting this goal, particularly in data-poor regions, is to avoid ... inadvertant failure while giving science the time and resources to provide better knowledge. A staged process ... in the long term. We elaborate a procedure that would satisfy the first stage of identifying a RSMPA ...
Meeting Document : WS-MPA-11/05 : Auteur(s): A.J. Constable, B. Raymond, S. Doust, D. Welsford (Australia), P. Koubbi (France) and A.L. Post (Australia)
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OCEANIC CIRCUMPOLAR HABITATS OF ANTARCTIC KRILL
view that krill require high food concentrations, with a distribution often linked to shelves. For a ... regions of moderate food (0.5-1.0 mg chl a m-3). Advection models suggest some loss northwards from these ... evidence for a compensating southwards migration, with an increasing proportion of krill found south of the ... ACC as the season progressed. The retention of krill in moderately productive oceanic habitats is a ...
Meeting Document : WG-EMM-08/P04 - Abstract : Auteur(s): A. Atkinson, V. Siegel, E. A. Pakhomov, P. Rothery, V. Loeb, R.M. Ross, L.B. Quetin, K. Schmidt, P. Fretwell, E.J. Murphy, G.A. Tarling and A.H. Fleming
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Krill of the Ross Sea: distribution, abundance and demography of Euphausia superba and Euphausia crystallorophias during the Italian Antarctic expedition (January–February 2000)
) were analysed to obtain a general picture of the summer distribution pattern, abundance and demography ... of krill in the western Ross Sea (Antarctica). A midwater sampler-trawl (Hamburg Plankton Net) was ... , in the area north of Continental Shelf, was 9.3 g/1000m3 of filtered water with a mean density of ... dominance in the High Antarctic Zone (south of 74°), with a mean relative biomass of 3.0 g/1000m3 and mean ...
Meeting Document : WG-EMM-02/32 Text : Auteur(s): A. Sala, M. Azzali and A. Russo (Italy)
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Has climate change promoted genetic fragmentation in the ice-dependent fish Pleuragramma antarcticum?
Abstract: Pleuragramma antarcticum is the only Antarctic notothenioid characterized by a complete ... pelagic life cycle and plays a major trophic role in the coastal Antarctic marine ecosystem. A previous ... investigate the population structure of P. antarcticum along the Antarctic Peninsula (AP) shelf, a region of ... Antarctica highly impacted by regional warming. We found a single gene pool and an absence of inter-annual ...
Meeting Document : WG-FSA-13/67 : Auteur(s): C. Agostini, T. Patarnello (Italy), J. Ashford, J. Torres (USA) and L. Zane (Italy)
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Results of the seventh Ross Sea shelf survey to monitor abundance of Antarctic toothfish in the southern Ross Sea, January 2018, and notification for research in 2018/19
Abstract: At its 2011 meeting, the Scientific Committee agreed that a time series of relative ... abundance from a well-designed survey would be a useful input into the Ross Sea stock assessment model. In ... southern Ross Sea (Strata A–C) using standardised gear in a standardised manner; and monitoring trends in ... relative biomass index of toothfish for the core strata showed a decrease from 2017 to a value equal to the ...
Meeting Document : WG-SAM-18/10 : Auteur(s): D. Stevens, X. Fu, S. Mormede and S. Parker
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Ross Sea fishery research and data collection plan
Abstract: A review of the use and effectiveness of research lines as a data collection and effort ... collected through fishing activities has effectively made the requirement to force a spread of research sets ... demonstrably higher on research hauls. The paper concludes with a proposal for a more effective Research Plan ... , environmental, and longline specific data on both the target species and on other catch species in a non biased ...
Meeting Document : WG-FSA-05/49 : Auteur(s): J. Fenaughty (New Zealand)