Résultats de la recherche
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Proposal to reposition the boundary between CCAMLR statistical Subareas 58.6 and 58.7
Abstract: Subareas 58.6 and 58.7 are closed to fishing outside of the Exclusive Economic Zones ... (EEZs) around the Crozet (France) and Prince Edward (South Africa) Archipelagos. The current boundary ... between Subareas 58.6 and 58.7 bisects the South African EEZ around the Prince Edward Islands. Thus ... fishery statistics reported for Subarea 58.7 reflects only part of the fishery in the South African EEZ ...
Meeting Document : WG-SAM-15/51 : Auteur(s): R.W. Leslie (South Africa) and G. Duhamel (France)
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An introduction to the Southern Ocean Observing System (Paper XP18 to CEP–SC-CAMLR Workshop 2016)
Abstract: ATCM 39/XP018 provides an introduction to the Southern Ocean Observing System (SOOS ... ; www.soos.aq). SOOS aims to facilitate the collection and delivery of essential observations on dynamics and ... ). SOOS will be implemented regionally through Regional Working Groups, currently one for the West ... Antarctic Peninsula and one for the Indian Sector. A Ross Sea Working Group is in the process of being ...
Meeting Document : WG-EMM-16/70 : Auteur(s): A.J. Constable, L. Newmman, O. Schofield, A. Wahlin and S. Swart
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Dynamics of Antarctic krill in the Bransfield Strait during austral summer and autumn investigated using acoustic data from a fishing vessel
Abstract: The Antarctic krill fisheries have evolved to operate in ever more concentrated ... biomass, distribution and swarm structure on these local scales seems critical for assessing the three-way ... interactions between krill, krill-dependent predators and the krill fishery. Acoustic data collected from the ... fishing vessels might help provide such insight. In the present work, the dynamics of krill with regards ...
Meeting Document : WG-EMM-17/40 : Auteur(s): X. Wang, G. Skaret, O.R. Godø and X. Zhao
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New Zealand’s exploratory fishery for toothfish within the SPRFMO Convention Area: update and future directions
Abstract: The 2-year programme of exploratory fishing provided for by SPRFMO CMM 4.14 has been ... successfully completed and new and important biological information has been collected on toothfish outside the ... CCAMLR convention area. The key findings are that only Antarctic toothfish, Dissostichus mawsoni, were ... surveys provide information on the life history of Antarctic toothfish that is consistent with the current ...
Meeting Document : SC-CAMLR-XXXVI/BG/18 : Auteur(s): M. Cryer, A. Dunn and J. Fenaughty
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Spatial and temporal operation of the Scotia Sea ecosystem: a review of large-scale links in a krill centred food web
Abstract: The Scotia Sea ecosystem is a major component of the circumpolar Southern Ocean system ... , where productivity and predator demand for prey are high. The eastward-flowing Antarctic Circumpolar ... Current (ACC) and waters from the Weddell–Scotia Confluence dominate the physics of the Scotia Sea ... , manifest by the changing irradiance and sea ice cover, which leads to shorter summers in the south. Summer ...
Meeting Document : WG-EMM-07/P8 : Auteur(s): E.J. Murphy, J.L. Watkins, P.N. Trathan, K. Reid, M.P. Meredith, S.E. Thorpe, N.M. Johnston, A. Clarke, G.A. Tarling, M.A. Collins, J. Forcada, R.S. Shreeve, A. Atkinson, R. Korb, M.J. Whitehouse, P. Ward, P.G. Rodhouse, P. Enderlein, A.G. Hirst, A.R. Martin, S.L. Hill, I.J. Staniland, D.W. Pond, D.R. Briggs, N.J. Cunningham and A.H. Fleming (United Kingdom)
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Non-native Species in the Antarctic: Report of a Workshop
the marine environment, invasive alien species are recognized as the fifth largest threat to global ... marine biodiversity. To date Antarctica has escaped the most significant impacts from invasive alien ... species, but the continent and Southern Ocean can no longer be considered immune. More than 200 non-native ... species have been discovered on the sub-Antarctic islands and several non-native species have been found ...
Meeting Document : SC-CAMLR-XXV/BG/21 : Auteur(s): Delegation of New Zealand
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Spatial distribution of predator/prey interactions in the Scotia Sea: implications for measuring predator/fisheries overlap
Abstract: The measurement of spatial overlap between predators and fisheries exploiting a common ... prey source is dependent upon the measurement scale used and the use of inappropriate scales may ... provide misleading results. Previous assessments of the level of overlap between predators and fisheries ... for Antarctic krill Euphausia superba in the South Shetland Islands have used different measurement ...
Meeting Document : WG-EMM-02/14 : Auteur(s): K. Reid, M. Sims, R.W. White and K.W. Gillon (United Kingdom)
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Reconciling theoretical versus empirical target strengths of krill; effects of phase variability on the distorted wave Born approximation
Abstract: A model was recently proposed to predict the target strengths (TS) of Antarctic krill ... ]. Based on the distorted wave Born approximation (DWBA), the model depends upon the coherent summation of ... broadside incidence (?? 90°), but large discrepancies were observed at other angles away from the main lobe ... . As the side-lobe measurements were both higher than the model predictions and above the noise floor ...
Meeting Document : WG-EMM-02/50 : Auteur(s): D.A. Demer and S.G. Conti (USA)
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Modelling the consequences of Antarctic krill harvesting of Antarctic fur seals
Abstract: In terms of the convention governing the Commission for the Conservation of Antarctic ... Marine Living Resources (CCAMLR), management advice for the Antarctic krill (Euphausia superba) fishery ... should take the needs of the predators of krill into account in order to reduce the risk of deleterious ... ). A single species yield model is currently being used by the CCAMLR Scientific Committee to recommend ...
Meeting Document : WG-EMM-01/66 : Auteur(s): R.B. Thomson, D.S. Butterworth (South Africa), I.L. Boyd and J.P. Croxall (United Kingdom)
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ON THE STUDY OF FECUNDITY AND EGGS SIZE OF ANTARCTIC TOOTHFISH DISSOSTICHUS MAWSONI NORMAN 1937
Abstract: The results of the microscopic analyses of the Antarctic toothfish (Dissostichus ... mawsoni) fecundity and eggs size, caught in December-March the Pacific and Indian Ocean area of the ... Antarctica are presented. We analyzed the main reproductive characteristics which determinate the individual ... fecundity of the Antarctic toothfish: individual absolute fecundity by the largest oocytes, share of largest ...
Meeting Document : WG-FSA-08/35 : Auteur(s): S.V. Piyanova. A.F. Petrov and N.V. Kokorin (Russia)