Résultats de la recherche

1. On the taxonomy of the Lepidonotothen squamifrons group (Pisces, Perciformes, Notothenioidei)

   macrophthalma, may also be identical with L squamifrons and that the L squamifrons 'group' is ... Islands to assist in clarifying their taxonomic status. Results suggest that both 'species&#039 ... Abstract:  The Lepidonotothen squamifrons group has been described to be comprised of 3 species: L ... ; represent only populations of one species. Evidence is presented that the third species of the group, L ...

   Meeting Document : WG-FSA-93/25 : Auteur(s): R. Schneppenheim and K.-H. Kock (Germany), G. Duhamel (France) and G. Janssen (Germany)

2. A preliminary model-based approach for estimating natural mortality of Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea Region

   estimated with relatively high precision and with no bias. Further investigations will need to be carried ... mortality can be achieved using MCMC simulations. We recommend that analyses exploring the effect of the ... model-based estimate of M, including values of natural mortality that vary by age and sex, should be ... estimated to be 92 140 t (70 330–121 950 t); a higher B0 72 620 t (65 040–81 050 t) when compared to the ...

   Meeting Document : WG-SAM-2019/04 : Auteur(s): B. Moore, S. Mormede, S. Parker and A. Dunn

3. 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 ... toothfish and the associated bycatch. The 2005 D. mawsoni catch was the highest on record with a total of ... total catch1. Comparison of the location of fishing effort with ice distribution over the past six years ... has clearly demonstrated the strong influence of ice on this fishery. In 2001, 2003, and 2004, ice ...

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

4. Interannual variability in Antarctic krill (Euphausia superba) density at South Georgia, Southern Ocean: 1997 – 2013

   , 2001-2003, 2005-2007) of high values (µ > 30 g m-2) interspersed with years (1999-2000, 2004, 2009 ... targets were identified in acoustic data using the approved CCAMLR protocol, that is using a multi ... g m-2) and its distribution was highly skewed with many zero observations. Within each survey the ... mean krill density was significantly correlated with the top 7% of the maximum krill densities observed ...

   Meeting Document : WG-EMM-14/P04 : Auteur(s): S. Fielding, J. Watkins, P. Trathan et al.

5. Standardised CPUE analysis of Antarctic toothfish (Dissostichus mawsoni) fishery in the Ross Sea for the years 1997/98 to 2004/05

   addition to extreme ice conditions that limited where lines could be set. None of these factors were ... years in Subarea 88.1 and 88.2. This report revises and updates the previous analysis with the addition ... on (a) all vessels and (b) the two main New Zealand vessels that have been in the fishery over most ... of the period. We estimate indices using both lognormal generalised linear models and a Tweedie mixed ...

   Meeting Document : WG-FSA-05/32 : Auteur(s): A. Dunn and N.L. Phillips (New Zealand)

6. A single-area stock assessment model of Antarctic toothfish (Dissostichus mawsoni) in SSRU 88.2E for the 2004/05 season

   . Moreover, the mean catch that could actually be taken under this scenario was 450 t. Hence, two revised ... be the same as used for the Antarctic toothfish in the Ross Sea (see Dunn et al. 2005b), except that ... uncertain, with the median estimated as 7720 t (95% credible intervals 3760–22 240 t), and current (B2005 ... , were estimated to be 670 t. However, as the fishing selectivity was estimated to be to the right of the ...

   Meeting Document : WG-FSA-05/31 : Auteur(s): A. Dunn, D.J. Gilbert and S.M. Hanchet (New Zealand)

7. Mercury concentrations in Patagonian toothfish, Dissostichus eleginoides Smitt 1898, among three distinct ocean basins

   contamination. With a steady global market demand for Dissostichus this could pose a human health risk that has ... mackerel, that are considered high in Hg concentration by the U.S. Food and Drug Administration. In ... , halibut, cod, albacore tuna, and orange roughy. Explanation of these geographical differences in Hg may be ... lie well within the Antarctic Convergence, suggesting that the Polar Front may provide some type of ...

   Meeting Document : WG-FSA-06/24 : Auteur(s): K. Dawson Guynn and M.S. Peterson (USA)

8. Dynamic model of krill Euphausia superba swarm

   . It was found that the vertical density pattern of krills' swarm, with a mean density of up to ... (Okubo, 1980, 1986). It was assumed that the above mentioned model can also be applicable to krill swarms ... 1000 individuals/m3, is consistent with the insect model predictions. That is why cohesive forms of ... superba Dana were registered. Analysis of their physical parameters was carried out. It is known that ...

   Meeting Document : WG-EMM-95/68 : Auteur(s): Kalinowski, J., Azzali, M.

9. Examination of the gut contents of Patagonian toothfish (Dissostichus eleginoides) from the toothfish pot fishery trials around South Georgia

   Abstract:  To undertake the 'ecosystem approach' to fisheries management recommended by ... individuals were examined and their stomach contents identified. The proportion of individuals found with ... confirms that D. eleginoides s an opportunistic carnivore, whose feeding habits vary dependent on the ... availability of food items as well as Factors such as depth. Author(s):  G. Pilling, T. Daw, M. Purves, D ...

   Meeting Document : WG-FSA-00/25 : Auteur(s): G. Pilling, T. Daw, M. Purves, D. Agnew and J. Xavier (United Kingdom)

10. An initial analysis of data provided from the deployment of scientific observers in the krill fishery

    scales and indicated that krill hauled in a given month/season/area were similar enough to be pooled to ... components associated with different vessels and observers to be obtained; these were found to be ... compute monthly length frequency distributions. Linear Mixed Models were used to remove systematic ...

    Meeting Document : WG-EMM-12/60 : Auteur(s): S. Thanassekos (CCAMLR Secretariat), S. Candy (Australia), E. Appleyard (CCAMLR Secretariat), S. Kawaguchi (Australia) and K. Reid (CCAMLR Secretariat)

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