Résultats de la recherche

1. Underwater noises produced by research vessels (some comments on acoustic sampling protocol for the Area 48 synoptic survey

   that the level of underwater noise produced by vessel is an important technical property to be taken ... echosurveying has been emphasized. It has been shown that a difference between the underwater noise levels of ... vessels with the unique given level of TS and Sv thresholds used by all vessels. The importance of the ...

   Meeting Document : WG-EMM-99/18 : Auteur(s): S. Kasatkina (Russia)

2. Risk maps for Antarctic krill under projected Southern Ocean acidification

   development even if the embryos are transferred to seawater with current levels of CO 2. Krill embryos appear ... -dimensional circumpolar projection of future p CO 2, predict that by 2100 the Weddell Sea and the waters to ... south of the Polar Front is predicted to be unsuitable for hatching by the year 2300, which would lead ... to collapse of the krill population. This is the first report that explores the circumpolar impacts ...

   Meeting Document : WG-EMM-14/P06 : Auteur(s): S. Kawaguchi, A. Ishida, R. King, B. Raymond, N. Waller, A. Constable, S. Nicol, M. Wakit and A. Ishimatsu

3. Genetic population structure of the mackerel icefish, Champsocephalus gunnari, in Antarctic waters

   , with the proportion of polymorphic loci, P = 0.175, mean heterozygosities per locus, HL = 0.058, and ... expectations, with significant deviations due exclusively to heterozygote deficiencies. Genetic differentiation ... ; South Georgia vs. South Orkneys) sea areas. Nei’s (1973) gene diversity analysis indicated that over 85 ... % of the total gene diversity was due to the within-population component, with progressively higher ...

   Meeting Document : WG-FSA-91/22 : Auteur(s): G.R. Carvalho and M. Warren (United Kingdom)

4. Interannual variation in the autumn diet of the gentoo penguin Pygoscelis papua at Laurie Island, Antarctica

   , species of the family Nototheniidae predominated in the diet with G. gibberifrons as the most important ... terms of frequency of occurrence, mass and number is compared with results of previous studies. Author(s ... T. newnesi were also well represented in the three sampling periods. A total of 1628 squid lower ...

   Meeting Document : WG-EMM-99/19 : Auteur(s): N. Coria, M. Libertelli, R. Casaux and C. Darrieu (Argentina)

5. Results from the 2019 annual acoustic krill monitoring off the South Orkney Islands

   comparison with previous survey years and provide some context for the large scale survey estimate, we here ... surveys from 2011 to 2018. The distribution was similar to previous years with most krill along the shelf ... (s):  G. Skaret, B.A. Krafft, G. Macaulay, T. Knutsen and O.A. Bergstad Title:  Results from the 2019 ...

   Meeting Document : WG-EMM-2019/69 : Auteur(s): G. Skaret, B.A. Krafft, G. Macaulay, T. Knutsen and O.A. Bergstad

6. Entanglement of Antarctic fur seals Arctocephalus gazella in man made debris at Bird Island, South Georgia during the 1999 winter and the 1999/2000 pup rearing season

   plastic packaging bands, double that observed in the 1998 winter, and a return to thehigh levels observed ... the early 1990's. Incidences of severe injury have also decreased. Entanglements in polypropylene ...

   Meeting Document : SC-CAMLR-XIX/BG/02 : Auteur(s): Delegation of the United Kingdom

7. Variation in the diet of the blue-eyed shag Phalacrocorax atriceps throughout the breeding season at Half-Moon Island, South Shetland Islands

   qualitatively and quantitatively similar to that reported for the 1992/93 austral summer at the same colony ... . However, the pellet analysis throughout the 1993/94 breeding season showed that large N. coriiceps were ... important in mass (79%), followed by N. nudifrons and T. newnesi. The overall composition of the diet was ...

   Meeting Document : WG-EMM-95/78 : Auteur(s): Barrera-Oro, E., Casaux, R.

8. Estimation of natural mortality using catch-at-age and aged mark-recapture data: a simulation study comparing estimation for a model based on the Baranov equations versus a new mortality equation

   Abstract:  Attempts to estimate natural mortality, as a single constant M, simultaneously with ... . The model based on a new mortality equation (CCODE model) uses an ODE with constant within-year catch ... per unit time for each age class, and as a result allows catch to be removed directly from the ... fishery that is not substantially depleted within any single fishing season, given fishers tend to ...

   Meeting Document : WG-SAM-10/11 Rev. 1 : Auteur(s): S.G. Candy (Australia)

9. Winter habitat selection by Antarctic krill will increase krill-predator-fishery interactions during ice free years

   around the Antarctic Peninsula in winters with contrasting ice conditions provide the first acoustic ... estimates of krill biomass, habitat use, and association with top predators to examine these likely ... , or primary production and in areas that are becoming more frequently ice free (Stammerjohn et al ... open waters are available to fishing vessels. Changes to conservation measures may be necessary to ...

   Meeting Document : WG-EMM-15/05 : Auteur(s): C.S. Reiss, A. Cossio, C.D. Jones, A. Murray, G. Mitchell, J. Santora, K. Dietrich, E. Weiss, C. Gimpel, J. Walsh and G.M. Watters (USA)

10. Green krill, the indicator of micro- and nano-size phytoplankton availability to krill

    significant regressions with chlorophyll-a concentrations in micro and nano- size fraction. This result shows ... in the natural environment. Author(s):  S. Kawaguchi, T. Ichii and M. Naganobu (Japan) Title:  Green ...

    Meeting Document : WG-EMM-98/29 : Auteur(s): S. Kawaguchi, T. Ichii and M. Naganobu (Japan)

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