Résultats de la recherche

1. In situ target strength measurements of Antarctic zooplankton (Euphausia superba and Salpa thompsoni) at 120 khz and 200 khz, corroboration of scattering models, and a statistical technique for delineating species

   (Euphausia superba and Salpa thompsoni) at 120 kHz and 200 kHz. Concurrently, a two meter Isaacs-Kidd ... both species. The individual TS measurements were collected at 120 kHz with a split-beam echosounder ... and a single-target detection algorithm. Because the two transducers were essentially collocated ... a fluid sphere model [V.C. Anderson, J.Acoust. Soc. Am. 22:426-431 (1950)]; presumably, predominant ...

   Meeting Document : WG-Krill-94/12 : Auteur(s): D.A. Demer and R.P. Hewitt (USA)

2. Seabird and longline interactions: effects of a bird-scaring streamer line and line shooter on the incidental capture of northern fulmars Fulmarus glacialis

   and reduced gear efficiency. The potential for solving these problems by using a bird-scaring streamer ... line and a line shooter was investigated in commercial longlining in the northern Atlantic off the ... mitigation measures, a combination of both and no mitigation measure. A total of 58,420 hooks were set in ... each of the four treatments. No birds were caught using the bird-scaring line alone and a single fulmar ...

   Meeting Document : WG-FSA-01/78 : Auteur(s): S. Løkkeborg (Norway) and G. Robertson (Australia)

3. TOWARDS A SYSTEM OF MARINE SPATIAL PROTECTION FOR THE SOUTH ORKNEY ISLANDS

   Report, para 7.2). In 2008, a pilot study undertaken for this region demonstrated that a systematic ... areas that might form the basis of further work, emphasising a number of questions that will help ... , we consider that work will be sufficiently well advanced to submit a preliminary proposal to SC-CAMLR ... -XXVIII, describing a package of marine spatial protection and management measures that could be ...

   Meeting Document : WG-EMM-09/22 : Auteur(s): S. Grant, P.N. Trathan, J. Tratalos and J. Silk (United Kingdom)

4. A REVIEW OF BIAS AND UNCERTAINTY IN ANTARCTIC PACK-ICE SEAL ABUNDANCE ESTIMATES

   Abstract:  While the joint CCAMLR-IWC workshop will consider a number of parameters for species ... of pack-ice seals focuses primarily on abundance and to a lesser extent trends in abundance. The ... spatial scope covers the circumpolar extent of pack-ice, and the temporal scope spans a period of more ... provide a sense of evolution and development of methodologies over a 50 year period of application. The ...

   Meeting Document : CCAMLR-IWC-WS-08/06 : Auteur(s): Steinhage, D., Bengtson, J., Blix, A.S., Bester, M., Boveng, P., Laake, J., Cameron, M., Nordøy, E., Forcada, J., Stewart, B., Southwell, C., Trathan, P., Rogers, T., Plotz, J., Bornemann, H.

5. A characterisation of the toothfish fishery in Subareas 88.1 and 88.2 from 1997–98 to 2013–14

   12 years with a slight decline in the past two years. Length frequency distributions of Antarctic ... of the fishery – the reason for this is unclear. There has been a slight reduction in mean age in ... recommended that additional otolith readings for this area are given a high priority. There was a marked ... , S. Hanchet, S. Mormede and A. Dunn (New Zealand) Title:  A characterisation of the toothfish fishery ...

   Meeting Document : WG-FSA-14/52 : Auteur(s): M. Stevenson, S. Hanchet, S. Mormede and A. Dunn (New Zealand)

6. The winter pack-ice zone provides a sheltered but food-poor habitat for larval Antarctic krill

   Abstract:  A dominant Antarctic ecological paradigm suggests that winter sea ice is generally the ... is a food-poor habitat for larval development. In contrast, the more open marginal ice zone provides ... a more favourable food environment for high larval krill growth rates. We found that complex under ... previously fed. Model analyses indicate that this behaviour increases both food uptake in a patchy food ...

   Meeting Document : WG-EMM-18/P04 : Auteur(s): B. Meyer, U. Freier, V. Grimm, J. Groeneveld, B.P.V. Hunt, S. Kerwath, R. King, C. Klaas, E. Pakhomov, K.M. Meiners, J. Melbourne-Thomas, E.J. Murphy, S.E. Thorpe, S. Stammerjohn, D. Wolf-Gladrow, L. Auerswald, A. Götz, L. Halbach, S. Jarman, S. Kawaguchi, T. Krumpen, G. Nehrke, R. Ricker, M. Sumner, M. Teschke, R. Trebilco and N.I. Yilmaz

7. CCAMLR ecosystem monitoring and a feedback management procedure for krill

   Abstract:  The CCAMLR Ecosystem Monitoring Programme has been developing a techniques-which might ... Programme might be incorporated into a feedback management strategy for this fishery. Author(s):  A ... . Constable (Australia) Title:  CCAMLR ecosystem monitoring and a feedback management procedure for krill ...

   Meeting Document : WG-KRILL/CEMP-92/04 : Auteur(s): A. Constable (Australia)

8. Preliminary assessment of long-term yield of Patagonian toothfish (Dissostichus eleginoides) for the Heard Island region (CCAMLR Division 58.5.2) based on a random stratified trawl survey in June 2005

   Abstract:  A survey of Patagonian toothfish, Dissostichus eleginoides,was undertaken in Division ... -term annual yield in the 2005/2006 CCAMLR season. This paper provides a preliminary assessment of yield ... growth parameters, including the use of a length-at-age vector, (iii) consideration of a vulnerability ... Division 58.5.2) based on a random stratified trawl survey in June 2005 Approval:  Approved ...

   Meeting Document : WG-FSA-05/30 : Auteur(s): A.J. Constable, T. Lamb and R. Williams (Australia)

9. A circumpolar pelagic regionalisation of the Southern Ocean

   Abstract:  This short note describes a circumpolar, pelagic regionalisation of the Southern Ocean ... south of 40°S, based on sea surface temperature, depth, and sea ice information. The results show a ... results from the Ross Sea (Sharp et al. 2010).This short note describes a circumpolar, pelagic ... information. The results show a series of latitudinal bands in open ocean areas, consistent with the oceanic ...

   Meeting Document : WS-MPA-11/06 : Auteur(s): B. Raymond (Australia)

10. A brief exploitation of the stone crab Lithodes murrayi (Henderson) off south west Africa, 1979/80

    . The species is largely confined to a bathymetric corridor of 500–700 m off South West Africa. Prior to ... commercial fishing, there was a densely populated region between 24°00'S and 24°40'S, although the ... crabs were present in small numbers over a much larger area. Over 90 per cent of the fishing effort was ... virtually constant. Some morphometric relationships and a factor for converting processed crab section mass ...

    Meeting Document : WS-CRAB-93/21 : Auteur(s): R. Melville-Smith (South Africa)

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