Résultats de la recherche
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THE POWER OF ECOSYSTEM MONITORING
ecosystem monitoring programme, the utility of which depends upon its ability (measured by the statistical ... monitoring programme of the predators of Antarctic krill Euphausia superba at South Georgia together with a ... krill population model to simulate natural and fisheries induced variability in krill abundance, the ... power to detect the effects of different levels of fishing was examined. 3. The power to detect the ...
Meeting Document : WG-EMM-08/P11 : Auteur(s): K. Reid, J.P. Croxall and E.J. Murphy
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Proposal for a SCOR Working Group to identify Ecosystem Essential Ocean Variables for measuring change in the biological properties of marine ecosystems
for measuring change in the biological properties of marine ecosystems” was developed by members of ... the Southern Ocean Observing System (SOOS) Science Steering Committee in conjuction with discussions ... amongst members of the Science Steering Committee of the IMBER program, Integrating Climate and Ecosystem ... Dynamics (ICED) as part of the development of the ICED Southern Ocean Sentinel. The aim of the Working ...
Meeting Document : WG-EMM-12/45 : Auteur(s): A. Constable (Australia)
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Revised research plan for the exploratory longline fishery for Dissostichus spp. in Division 58.4.2 in 2014/15
Abstract: Most things related to Dissostichus spp. in the eastern side of Antarctic has not been ... known well as namely the area is data poor areas. In the Division 58.4.1 there are two stocks; one ... extends from the SSRU 58.4.1C to the SSRU 58.4.2A, and the other one to the SSRU 58.4.1H. The population ... sizes were vulnerable with a big range of about 100-1,500 t per SSRU in 58.4.2. During the 2004-2014 ...
Meeting Document : WG-FSA-14/39 : Auteur(s): Delegation of the Republic of Korea
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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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The Ross Sea region Marine Protected Area Research and Monitoring Plan (WG-EMM 2017)
Abstract: The Ross Sea region MPA Research and Monitoring Plan Workshop (WS-RMP) was held at the ... April 2017. The purpose of the workshop was to develop a draft research and monitoring plan (RMP) for ... the Ross Sea region MPA. The RMP is required to be introduced to CCAMLR at the annual meetings of the ... Scientific Committee and Commission later this year, prior to the Ross Sea Region MPA’s implementation in ...
Meeting Document : WG-EMM-17/43 : Auteur(s): A. Dunn, M. Vacchi and G. Watters
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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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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)