Résultats de la recherche

1. Progress towards a trophic model of the ecosystem of the Ross Sea, Antarctica, for investigating effects of the Antarctic toothfish fishery

   with which to investigate effects of the fishery for Antarctic toothfish (Dissostichus mawsoni). The ... Ross Sea is a low primary production system, with production being localised in space and time. In the ... . antarcticus) are other key linking species. The trophic model presented here is not complete and should be ... considered a work in progress. Overall, the model is close to balance, with total exports of organic carbon ...

   Meeting Document : WG-EMM-06/14 : Auteur(s): M. Pinkerton, S. Hanchet and J. Bradford-Grieve (New Zealand)

2. A review of methodologies aimed at avoiding and/or mitigating incidental catch of protected seabirds.

   interactions with fishing gear in New Zealand fisheries and fisheries that operate using similar methodologies ... are likely to be the most effective regime at this point to mitigate seabird interactions with the ... required, and even within a fishery there is likely to be individual vessel refinement of mitigation ... paired bird-scaring lines, line-weighting and night-setting (in some fisheries). Along with offal and ...

   Meeting Document : WG-FSA-05/P8 : Auteur(s): Bull, L.

3. Report of the First Workshop on the Identification of Priority Areas for MPA Designation within Domain No. 1 (CCAMLR). Valparaiso 2012

   was realized that some conservation objectives had a direct relationship with the feedback management ... for conducting the analysis; a concerted list of conservation objectives to be included in the ... analyses; a review of existing and missing data; a definition of the cost-layer to be included; a ... recommendation on the analysis and software to be used for aiding to identify priority areas for conservation ...

   Meeting Document : WG-EMM-12/69

4. Cephalopods and mesoscale oceanography at the Antarctic polar front: satellite tracked predators locate pelagic trophic interactions

   the Falkland Ridge. The association of these mesoscale features with the bathymetry suggests that they ... cephalopod concentrations, and sampled them with commercial and scientific nets to determine the relationship ... . A net survey was carried out with a commercial pelagic trawl, a rectangular midwater trawl 25 m2 ... cephalopod community that closely resembled that exploited by D. chrysostoma. The largest and most ...

   Meeting Document : WG-EMM-96/12 : Auteur(s): Murphy, E.J., Trathan, P.N., White, M.G., Bone, D.G., Hatfield, E.M.C., Rodhouse, P.G., Prince, P.A., Watkins, J.L.

5. Bycatch of skates (Rajiformes) and grenadiers (Macrouridae) in longline fisheries in Subarea 48.3

   range. During the period 1996–1999 skate bycatch was higher in February-March, while that of grenadiers ... was lower in July-August; since the limitation to a winter longline fishery there in no longer any ...

   Meeting Document : WG-FSA-14/47 Rev. 1 : Auteur(s): V. Laptikhovsky, M. Soeffker, M. Belchier, J. Roberts, C. Darby, J. Ellis and R. Scott (United Kingdom)

6. Krill caught by predators and nets revisited: interpreting prey selection in proper temporal–spatial scales

   frequently show differences that have fueled speculation of prey selectivity by predators. Krill, however ... , are not homogenously distributed and matching temporal-spatial scales of sample collections can be ... compare krill length frequency data collected over the entire West area of the U.S. AMLR survey grid with ... that collected only in fur seal foraging habitat. Both are compared to krill in fur seal diet. When ...

   Meeting Document : WG-EMM-04/49 : Auteur(s): M.E. Goebel, V. Loeb, D.P. Costa, S.N. Sexton, A.R. Banks, J.D. Lipsky and A.C. Allen (USA)

7. Mitigation trials and recommendations to reduce seabird mortality in the pelagic icefish (Champsocephalus gunnari) fishery (Subarea 48.3)

   ) season in sub-area 48.3, to quantify seabird interaction with fishing operations, to trial different ... mitigation methods in an attempt to reduce seabird mortality caused by entanglement with the net and to ... idea of binding the net with sisal string on shooting, in order to prevent it opening until it had sunk ... feed from the net. Observations suggest this technique to be highly efficient and adoption of this ...

   Meeting Document : WG-FSA-05/59 : Auteur(s): J.O. Roe (United Kingdom)

8. Population, breeding, diet and conservation of Crozet shag Phalacrocorax [atriceps] melanogenis at Marion Island, 1994/95 to 2002/03

   birds breeding in any given season. The decreases coincided with a period of warming and reduced ... precipitation at Marion Island and with a decrease in the number of gentoo penguins Pygoscelis papua breeding ... . Nototheniid fish and the decapod Nauticaris marionis continued to be important in the diet of Crozet shags ... the mid 1980s. Crozet shags breed for the first time when aged three years. It is probable that about ...

   Meeting Document : WG-EMM-03/17 : Auteur(s): R.J.M. Crawford, J. Cooper, B.M. Dyer, A.C. Wolfaardt, D. Tshingana, K. Spencer, S.L. Petersen, J.L. Nel, D.G. Keith, C.L. Holness, B. Hanise, M.D. Greyling and M. du Toit (South Africa)

9. A preliminary stock assessment in SSRUS 486A, G: A Bayesian and CPUE based biomass dynamic model

   contributed little to the abundance estimates. This indicates that other modelling framework should be ... area of 48.6 (SSRU 48.6A, 48.6G). Antarctic and Patagonian toothfish presented a high proportion with ... assessment model, it is highly recommendable to continue with the collection of the data by scientific ... observed and tagging and release program. Bayesian data-poor models seem to be appropriated to treat data ...

   Meeting Document : WG-SAM-13/29 : Auteur(s): R. Wiff, J.C. Quiroz (Chile) and R. Scott (United Kingdom)

10. Detection of growth zones in the eyestalk of the Antarctic krill Euphausia superba (Dana, 1852) (Euphausiacea)

    narrower growth zones from the third zone and onwards compared with males. Data show that male subadult ... increased with increasing body length, although there were differences between sexes. Females tended to have ... and a verification of the ageing procedure from krill with a known age is needed before the number of ... growth zones can be definitely established as an indicator of age. The detection of growth zones in the ...

    Meeting Document : WG-EMM-16/P02 : Auteur(s): B.A. Krafft, M. Kvalsund, G. Søvik, E. Farestveit and A.-L. Agnalt

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