Résultats de la recherche

1. Preliminary report of sound-speed contrast and density of krill measured on board RV Kaiyo Maru

   improve the accuracy and precision of the TS value. Since in situ and experimental TS measurements of ... ) and the other is the ratio of the sound speed in animal to that in the surrounding water (sound-speed ... still few. During Antarctic surveys of the Japanese R/V Kaiyo Maru in 2000 and 2004/ 2005, the ... mean total length and mean density were 43.5mm and 1.0562gcm-3, respectively in 2000 survey, and were ...

   Meeting Document : WG-EMM-05/36 : Auteur(s): Y. Takao, H. Yasuma, R. Matsukura and M. Naganobu (Japan)

2. Agreement on the Conservation of Albatrosses and Petrels – Report of the First Meeting of the Advisory Committee Interim Secretariat – Agreement on the Conservation of Albatrosses and Petrels

   Albatrosses and Petrels was held in Hobart from 20-22 July 2005. This meeting followed the First Session of ... the Meeting of the Parties, held in Hobart from 10-12 November 2004. Eleven Parties have ratified the ... Agreement of which six were represented at the Advisory Committee meeting. In addition three range states ... examined a number of papers submitted in relation to the issue of incidental mortality in fisheries. It was ...

   Meeting Document : WG-FSA-05/25

3. Demersal longlines with integrated weight: a preliminary assessment of sink rates, fish catch success and operational effects

   Abstract:  Conservation Measure # 216 requires vessels fishing in sub area 88.1 + sink longlines ... attached weights (6 kg/49 m) in the New Zealand ling fishery. Longlines with 0 g/m (unweighted), 25 g/m, 50 ... sank instantly, reaching 1 m depth in 6-9 s whereas unweighted lines took >20 s to reach this depth ... /m added weight are recommended for testing in a subsequent trial to examine the effectiveness of IW ...

   Meeting Document : WG-FSA-02/22 : Auteur(s): G. Robertson (Australia), M. McNeill, B. King (New Zealand) and R. Kristensen (Norway)

4. Movement and growth of tagged toothfish around South Georgia and Shag Rocks (Subarea 48.3)

   Abstract:  In 2000 the UK started a toothfish (Dissostichus eleginoides) tagging programme. The ... of the fish recaptured to date were tagged and released during the experimental pot fishing in 2000 ... the same longline vessel in 2002 after up to two months at liberty. The fish tagged during the ... recaptures of these fish tagged at South Georgia or elsewhere in the South Atlantic. Similarly, tags ...

   Meeting Document : WG-FSA-02/28 : Auteur(s): T.R. Marlow, D.J. Agnew and I. Everson (United Kingdom)

5. CCAMLR measures regulating the tagging of Dissostichus species, metrics used to assess vessel tagging performance, the potential for some anomalous results, and general recommendations on tagging; a view from the hauling room

   species) in exploratory fisheries carried out within the Convention Area are described.  Following the ... first season of implementation we describe several circumstances which will cause anomalies in the tag ... overlap statistic used to monitor tagging performance.  These relate to differences in the length ... distribution of Dissostichus species within the assessed management division (ASD) or changes in the tagging ...

   Meeting Document : WG-FSA-11/50 : Auteur(s): J.M. Fenaughty (New Zealand) and J. Brown (United Kingdom)

6. DRAFT SOFTWARE USER GUIDE FOR: ICESCAPE: INTEGRATING COUNT EFFORT BY SEASONALLY CORRECTING ANIMAL POPULATION ESTIMATES

   in the R language for statistical computing (R Development Core Team 2008), aims to adjust raw count ... data for availability and perception bias, and account for sampling fractions less than unity, in order ... conditions. In Antarctica, adjustment for availability is particularly important, because difficulties in ... accessing breeding sites often lead to counts of land-breeding predators being taken at suboptimal times in ...

   Meeting Document : WG-SAM-09/16 : Auteur(s): J. McKinlay, C. Southwell and R. Trebilco (Australia)

7. Histopathology of Antarctic krill, Euphausia superba, bearing black spots

   superba, since January, 2001. To study the nature of the black spots, the krill were sampled in the winter ... of 2003, 2006, and 2007 in the South Georgia region, the Antarctic Ocean. Histological observations ... bacteria or amorphous material. In the 2007 samples, 42% of the krill had melanized nodules. Most of the ... genes. More than three bacterial species or strains were also confirmed by in situ hybridization for 16S ...

   Meeting Document : WG-EMM-08/P09 : Auteur(s): S. Miwa, T. Kamaishi, T. Matsuyama, T. Hayashi and M. Naganobu

8. UPDATED BIOLOGICAL PARAMETERS FOR THE ANTARCTIC STARRY SKATE, AMBLYRAJA GEORGIANA, FROM THE ROSS SEA

   Abstract:  Photographs of skates taken by observers on New Zealand toothfish longliners in the ... examined in the laboratory. There was no significant difference between the median length at maturity for ... of these were returned in good condition and were considered likely to survive. Estimates of the ... proportion released in good condition are in the range 50–80%, depending on assumptions about whether skates ...

   Meeting Document : WG-FSA-08/20 : Auteur(s): M.P. Francis and S. Mormede (New Zealand)

9. Important aspects of prey distribution for the formation of foraging areas of chinstrap penguins and Antarctic fur seals at Seal Island

   . Chinstrap penguins foraged in two modes during chick-brooding period: daytime foraging chinstrap penguins ... foraged in the inshore region, while overnight foraging penguins foraged in the slope region. It was ... difficulty in perceiving prey at night. Antarctic fur seals foraged mostly in the slope/offshore region ... during pup-rearing period. It was suggested that important factors may be mainly 4) and 6). In conclusion ...

   Meeting Document : WG-EMM-97/28 : Auteur(s): Bengtson, J.L., Hiruki, L.M., Naganobu, M., Ichii, T., Meyer, W.R., Cameron, M.F., Boveng, P., Takao, T., Miura, A., Jansen, J.K., Kawaguchi, S., Hayashi, T.

10. A tale of two islands: contrasting fortunes for sub-Antarctic skuas at the Prince Edward Islands

    at the Prince Edward Islands was conducted during December 2008, repeating a previous survey in ... supported twice as many non-breeding birds. Burrowing petrels comprised 96% of prey in skua middens at ... coverage in 2008, whereas the number of skua nests on Marion Island was barely half that counted in 2001 ... , continuing an apparent decrease in this species at Marion Island since the 1980s. There is no evidence that ...

    Meeting Document : WG-EMM-10/P03 : Auteur(s): P.G. Ryan, P.A. Whittington and R.J.M. Crawford

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