Résultats de la recherche

1. OCEANIC CIRCUMPOLAR HABITATS OF ANTARCTIC KRILL

   view that krill require high food concentrations, with a distribution often linked to shelves. For a ... , with 70% of the total stock concentrated between 0o and 90oW. Within this Atlantic sector, krill are ... evidence for a compensating southwards migration, with an increasing proportion of krill found south of the ... regions of moderate food (0.5-1.0 mg chl a m-3). Advection models suggest some loss northwards from these ...

   Meeting Document : WG-EMM-08/P04 - Abstract : Auteur(s): A. Atkinson, V. Siegel, E. A. Pakhomov, P. Rothery, V. Loeb, R.M. Ross, L.B. Quetin, K. Schmidt, P. Fretwell, E.J. Murphy, G.A. Tarling and A.H. Fleming

2. Diet and trophic niche of Antarctic silverfish (Pleuragramma antarcticum) in the Ross Sea, Antarctica

   Paraeuchaeta sp., with krill and fish having low IRI (IRI 2.2% and 5.6% overall). However, according to weight ... % respectively), with copepods being a relatively minor constituent of overall diet by weight (9.9%). Piscivory ... superba (14.1%) with some E. crystallophorias (4.8%). were identified in silverfish stomachs. Both distLM ... demonstrated. Silverfish trophic level was 3.5 (larval/post-larval fish) and 4.0 (fish aged 3+). Author(s ...

   Meeting Document : WG-EMM-12/54 : Auteur(s): M.H. Pinkerton, J. Forman, S.J. Bury, J. Brown, P. Horn and R.L. O’Driscoll (New Zealand)

3. The use of electronic monitoring camera system for the toothfish fishery in CCAMLR Subarea 48.3: a study case to help CCAMLR

   by a scientific observer was compared with recorded video footage recorded by 3 different video ... requires considerable effort and cost with mixed results.  For example it is not always possible to achieve ... divided in settings and hauling operations where at-sea observations were matched with video footage ...

   Meeting Document : WG-FSA-14/27 : Auteur(s): R.A. Benedet (United Kingdom)

4. Population structure of the Antarctic toothfish, Dissostichus mawsoni from the Areas 58 and 88 in the Antarctic Ocean based on mitochondrial and microsatellite DNA markers

   polymorphism (h =0.109, π =0.0002) with only eight COI haplotypes in 213 individuals, connected only by 1-3 ... mutational steps. Nonetheless, microsatellites showed much higher variation with allelic richness (AR) values ... clarify this, further study with additional polymorphic markers (such as microsatellites) using more ...

   Meeting Document : WG-FSA-2019/36 : Auteur(s): H.-K. Choi, J.E. Jang, S.Y. Byeon, S. Chung, S.-G. Choi, H. W. Kim and H.J. Lee

5. Estimating food consumption of marine predators: Antarctic fur seals and macaroni penguins

   consumption of 0?35 (CV = 0?11) and 0?72 (CV = 0?23) G tonnes year –1. Carbon expired as CO 2 was 0?26 (CV = 0 ... ?06) and 0?65 (CV = 0?19) G tonnes year –1 for fur seals and macaroni penguins, respectively. The per ... year –1 for Antarctic fur seals and 0?45 (CV = 0?22) tonnes year –1 for macaroni penguins. 4. The ... macaroni penguins compete for krill with a commercial fishery, these results provide an insight into the ...

   Meeting Document : WG-EMM-02/23 : Auteur(s): I.L. Boyd (United Kingdom)

6. NET-BASED VERIFICATION OF ACOUSTIC TECHNIQUES USED TO IDENTIFY ANTARCTIC KRILL

   ’ algorithm attributed more than 90 % of the total backscatter to krill in all but 1 aggregation with the ‘2 ... identification algorithms for krill: (i) ‘3 freq model’- using the SDWBA to set the acceptance windows for both ... backscatter to krill in 6 nets while the ‘3 freq model’ attributed only just greater than 50 % of the ...

   Meeting Document : WG-EMM-08/54 : Auteur(s): J. Watkins and S. Fielding (United Kingdom)

7. 2007 assessment of the toothfish (Dissostichus eleginoides) resource in the Prince Edward Islands vicinity

   cetacean predation associated with longlining). Author(s):  A. Brandão and D.S. Butterworth (South Africa ... become available for the years 2006 and 2007. The assessment allows for a second fleet to accommodate ...

   Meeting Document : WG-FSA-07/34 Rev. 1 : Auteur(s): A. Brandão and D.S. Butterworth (South Africa)

8. Natural mortality rates of the Antarctic krill Euphausia superba Dana in the Indian sector of the Southern Ocean

   equation. The coefficients of natural mortality of E. superba derived with this method range from 0.49 ... , during the maturation period, to 1.17 and 3.22 during the first and last years of life, respectively ...

   Meeting Document : WG-KRILL-93/44 : Auteur(s): E.A. Pakhomov (Ukraine)

9. Assessment of fishable krill biomass on the basis of the acoustic surveys results using geostatistical methods

   compliance with different thresholds of their fishery importance. The structure of krill density field in ... by years and SSMUs reflecting inter-annual fluctuations of the krill density field structure ...

   Meeting Document : WG-SAM-10/07 Rev. 1 : Auteur(s): S.M. Kasatkina and P.S. Gasyukov (Russia)

10. The fish fauna of the Argentine Islands region (Antarctica; 12 UAE 2007–2008) and morphometrical changeability of Notothenia coriiceps (Richardson, 1844)

    were studied. New fishes subdominant was registry with help our researches. Trematomus bernacchii was ... subdominant in the previous years, but during our researches Notothenia rosii prevailed already. Biological ...

    Meeting Document : WG-FSA-12/P06 : Auteur(s): V.N. Trokhymets, V.A. Tymofyeyev and J.S. Perechrest

Pages