Résultats de la recherche

1. Are penguins and seals in competition for Antarctic krill at South Georgia?

   prevalence of krill in the diet of the two predators differed with less krill in the diet of macaroni ... correlated with estimated krill abundance between 1994 and 2000. We found little evidence for direct ... consumers of Antarctic krill. In recent years the population of fur seals has increased whereas that of ... 1989 and 2000. Foraging ranges of the two species showed considerable overlap in both years but the ...

   Meeting Document : WG-EMM-01/22 : Auteur(s): K.E. Barlow, I.L. Boyd, J.P. Croxall, I.J. Staniland, K. Reid and A.S. Brierley (United Kingdom)

2. A characterisation of the toothfish fishery in Subareas 88.1 and 88.2 from 1997/98 to 2004/05

   eight years in Subarea 88.1 and for four years in Subarea 88.2 with a large amount of data collected on ... total catch1. Comparison of the location of fishing effort with ice distribution over the past six years ... toothfish and the associated bycatch. The 2005 D. mawsoni catch was the highest on record with a total of ...

   Meeting Document : WG-FSA-05/29 : Auteur(s): S.M. Hanchet, M.L. Stevenson, N.L. Phillips and A. Dunn (New Zealand)

3. Geographical differences in the condition, reproductive development, sex ratio, and length distribution of Antarctic toothfish (Dissostichus mawsoni) from the Ross Sea, Antarctica (CCAMLR Statistical Subarea 88.1)

   toothfish Dissostichus mawsoni from mid-December to early April during the 2000-01 to 2004-05 fishing ... a consistent peak over all sampling seasons in comparison with the southern group in which the ...

   Meeting Document : WG-FSA-05/52 : Auteur(s): J.M. Fenaughty (New Zealand)

4. Interannual variation in the diet of the Antarctic prion Pachyptila desolata at South Georgia

   was mainly crustaceans, with a small proportion of myctophid fish and trace amounts of cephalopods ... regurgitated by adult birds during five breeding seasons at Bird Island, South Georgia. In all years the diet ... . Antarctic krill Euphausia superba was the dominant prey item in three years and was replaced by calanoid ... copepods, especially Rhincalanus gigas and Calanoides acutus, in two years of low krill abundance ...

   Meeting Document : WG-EMM-97/12 : Auteur(s): Croxall, J.P., Edwards, T.M., Reid, K.

5. Solutions to seabird by-catch in Alaska’s demersal longline fisheries

   years, regions, and fleets (88% to 100% relative to controls with no deterrent), despite the fact that ... precluded seabird attacks. Most significantly, this success came with no consequence to catch rates of ... Abstract:  This research program compared seabird bycatch mitigation strategies over 2 years (1999 ... fishery for Pacific cod. We conducted tests over two years to account for inter-annual variation and allow ...

   Meeting Document : WG-FSA-01/35 : Auteur(s): E.F. Melvin, J.K. Parrish, K.S. Dietrich and O.S. Hamel (USA)

6. Results from the random stratified trawl surveys to estimate distribution and abundance of Dissostichus eleginoides and Champsocephalus gunnari in the Heard Island region (Division 58.5.2) for 2010 and 2011

   the average catch for the previous four years (2006-2009).  Catches of C. gunnari were very low, with ... the average. Macrourid catches have been stable over recent years, with a fall in 2011. Skate catches ... the 2011 catch, at less than 0.5 t, 15% of the earlier four year average, and the 2010 catch being 60 ... information on abundance. Catches of D. eleginoides were at half or lower than in surveys from both years than ...

   Meeting Document : WG-FSA-11/23 : Auteur(s): G.B. Nowara, S.G. Candy and T. Lamb (Australia)

7. Revised research plan for the exploratory longline fishery for Dissostichus spp. in 2015/16 in Division 58.4.3a

   block by two vessels using longlines: Shinsei Maru No. 3 (Japan) and the Saint André (France). The catch ... . France notified its intention to continue its exploratory fishery over the coming years in order to ...

   Meeting Document : WG-SAM-15/11 : Auteur(s): Delegation of France

8. Revised research plan for the exploratory longline fishery for Dissostichus spp. in 2015/16 in Division 58.4.3a

   block by two vessels using longlines: Shinsei Maru No. 3 (Japan) and the Saint André (France). The catch ... . France notified its intention to continue its exploratory fishery over the coming years in order to ...

   Meeting Document : WG-FSA-15/78 : Auteur(s): A. Rélot-Stirnemann (France)

9. Marine debris and entanglements at Bird Island and King Edward Point, South Georgia, Signy Island, South Orkneys and Goudier Island, Antarctic Peninsula 2013–2014

   association with seabird colonies at Bird Island, most commonly in association with wandering albatrosses (40 ... . Debris associated with seabird colonies was below the mean level for wandering albatrosses and grey ... highest ever recorded in the 24 years of summer surveys and fourth highest ever recorded in 23 years of ... the lowest ever recorded in 24 years of surveys. The incidence of marine mammal entanglements was ...

   Meeting Document : SC-CAMLR-XXXIII/BG/31 : Auteur(s): Delegation of the United Kingdom

10. Evidence to support the annual formation of growth zones in otoliths of Antarctic toothfish (Dissostichus mawsoni)

    , sagittal otoliths were examined from D. mawsoni that had been injected with oxytetracycline some years ... that the modes represented year classes and that one translucent zone is formed annually in otoliths of ... , and 46 cm TL, respectively. These estimates agree with growth curves calculated previously from a ... juvenile D. mawsoni. Mean fish lengths at ages 0.5, 1.5, 2.5, and 3.5 years were estimated to be 14, 28, 37 ...

    Meeting Document : WG-FSA-02/33 : Auteur(s): P.L. Horn, C.P. Sutton (New Zealand) and A.L. DeVries (USA)

Pages