Résultats de la recherche

1. Demography of Antarctic krill in the Elephant Island area (Antarctic Peninsula) during austral summer 2001

   Abstract:  A net sampling survey was carried out for krill in an established standard station grid ... around Elephant Island during 27 January to 4 February 2001. Results show a spatial separation of the ... juvenile and the spawning stock. The station grid was extended to the south, where a large proportion of ... high krill abundance and the high recruitment index reflect the end of a succession of years with poor ...

   Meeting Document : WG-EMM-01/10 : Auteur(s): V. Siegel (Germany), B. Bergström (Sweden), U. Mühlenhardt-Siegel (Germany) and M. Thomasson (Sweden)

2. Streamlining the work of the Scientific Committee for the Conservation of Antarctic Marine Living Resources (SC-CAMLR)

   Abstract:  In recent years, the Scientific Committee has been dealing with a great diversity of ... meetings and a large diversity of important issues.  A number of important issues are not being addressed ... through the year: a two week period for workshops, a three week period for the Scientific Committee and ... its working groups and maybe workshops in mid-year, and a short meeting of the Scientific Committee ...

   Meeting Document : WG-EMM-15/59 : Auteur(s): G. Watters (USA), A. Constable and D. Welsford (Australia)

3. Evaluation of the effects of illegal, unregulated and unreported (IUU) fishing on the legal catch of fisheries for Dissostichus eleginoides

   population at a productive level with only a small chance of become depleted. The increasing levels of ... populations of this species. As a result of IUU fishing, the catch limits set by CCAMLR are being reduced each ... by CCAMLR. The scenarios explored are with IUU annual catch at 0.33x, 1x, 2x and 4x a legal catch ... catch and the legal catch were combined in the catch history and a new long-term sustainable annual ...

   Meeting Document : WG-FSA-02/69 : Auteur(s): A.J. Constable (Australia)

4. Identification of Amblyraja species in the longline fishery in Subarea 48.3 – CCAMLR

   Abstract:  We describe a previously unknown Amblyraja, A..sp.anon, from South Georgia. In the past ... this form has been classified as Amblyraja. georgiana. A.sp.anon differs from A. georgiana in form ... A.georgiana. Male A. sp.anon attain 50% maturity at a total length of 97cm, 13 cm greater than the length at ... between 300-500m. We conclude that A.sp.anon probably a separate species from A.georgiana. For the ...

   Meeting Document : WG-FSA-02/54 : Auteur(s): M. Endicott (United Kingdom), L.J.V. Compagno (South Africa) and D.J. Agnew (United Kingdom)

5. Preliminary assessment of toothfish in Subarea 48.3

   due to a combination of a strong 2001 cohort and a change in selectivity for the commercial fleet, but ... recruitment suggests a long-term yield of 3 200 t.  If year class strengths have been low since 1994 and ... scenario is highly unlikely as survey data from 2010 and 2011 suggest a strong 2007 cohort, and survey data ... from 2004 to 2008 suggest a strong 2001 cohort. Model projections, evidence of cohort strength from the ...

   Meeting Document : WG-FSA-11/33 Rev. 1 : Auteur(s): T. Peatman, R.E. Mitchell, G. Parkes and D.J. Agnew (United Kingdom)

6. Scientific requirements for an orderly development of the krill fishery

   survey. These were used by the Scientific Committee to recommend to the Commission a revised ... supported the large increase in the precautionary catch limit, such a large increase required the inclusion ... required to be established immediately, however at a minimum there needs to be mechanisms developed to ... establish a catch limit before fishing is prosecuted in these areas. (ii) Establish small-scale management ...

   Meeting Document : WG-EMM-07/23 : Auteur(s): A. Constable, G. Slocum and S. Nicol (Australia)

7. Southern Ocean Network of Acoustics (SONA): Report on Acoustic Processing and Methods Workshop, Vigo, 24–25 April 2016

   Abstract:  In April 2016 Southern Ocean Network of Acoustics (SONA) hosted a workshop of its ... ; Metrics of data quality and DOIs; Summary statistics and a way forward for regional comparison; and ... Current and future collaboration and opportunities. This report is a summary of those agenda items. Author ... (s):  S. Fielding, J. Thomas, C. Anderson, A. Conchon, A. Cossio, A. Dunford, P. Escobar-Flores, J ...

   Meeting Document : WG-EMM-16/36 : Auteur(s): S. Fielding, J. Thomas, C. Anderson, A. Conchon, A. Cossio, A. Dunford, P. Escobar-Flores, J. Horne, T. Jarvis, R. Kloser and T. Ryan

8. Modelling the impact of krill fishing on seal and penguin colonies

   Abstract:  A key area of concern highlighted by the Scientific Committee of the Commission for the ... region. The dynamics of krill in this region are strongly influenced by advective processes. A key ... ) are necessary given that there is a flux of krill through this region with its islands habited by ... of a breeding colony but also the flux of krill through such areas. This paper outlines a proposed ...

   Meeting Document : WG-EMM-05/14 : Auteur(s): É.E. Plagányi and D.S. Butterworth (South Africa)

9. Reasons of differences between distribution and density of mackerel icefish (Champsocephalus gunnari) aggregations in the South Georgia area during summer and autumn periods in different years from the bottom trawl survey data

   Abstract:  During the feeding period icefish aggregations are confined to a frontal zone between ... . Icefish concentrations were detected at the periphery of a cyclonic meander or in the centre of the ... and the coastal waters. Such a confinement of fish aggregations to dynamically active zones arises ... rather from concentration of food organisms in these areas than as a result of favourable conditions for ...

   Meeting Document : WG-FSA-05/77 : Auteur(s): Zh.A. Frolkina (Russia)

10. Summer distribution, abundance and structure of krill populations (Euphausia superba and Euphausia crystallorophias) sampled by plankton net in the western Ross Sea (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 ... used to collect zooplankton and fish larvae at 63 stations. The net was deployed normally as a standard ... Continental Shelf, was 9.4 (±18%) g/l000m3 of filtered water with a mean density of 11.0 (±16%) indviduals per ...

    Meeting Document : WG-EMM-00/38 : Auteur(s): M. Azzali, A. Sala and G. Brancato (Italy)

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