Résultats de la recherche

1. An 8-year cycle in krill biomass density inferred from acoustic surveys conducted in the vicinity of the South Shetland Islands during the austral summers of 1991/1992 through 2001/2002

   from 1 to 60 g m–2, decreasing from mid-range levels in 1991/1992 to a minimum in 1992/1993–1993/1994 ... , increasing to a peak in 1996/1997–1997/1998, and decreasing again through 2000/2001–2001/2002. Although this ... biomass density are consistent with apparent changes in reproductive success. A truncated Fourier series ...

   Meeting Document : WG-EMM-03/6 : Auteur(s): R.P. Hewitt, D.A. Demer and J.H. Emery (USA)

2. Foraging strategies of chinstrap penguins at Signy Island, Antarctica: importance of benthic feeding on Antarctic krill

   both types of trip fed almost exclusively on Antarctic krill. There was a positive relationship between ... strategy by one of the major avian consumers of Antarctic krill provides a new insight into the predator ... -prey interactions of the Antarctic coastal marine ecosystem. Author(s):  A. Takahashi (Japan), M.J ...

   Meeting Document : WG-EMM-03/37 : Auteur(s): A. Takahashi (Japan), M.J. Dunn, P.N. Trathan (United Kingdom), K. Sato, Y. Naito (Japan), J.P. Croxall (United Kingdom)

3. Sources of variability associated with Adélie penguin CEMP parameters measured at Béchervaise Island, East Antarctica

   Abstract:  We examine the magnitude of a variety of sources of variability associated with CEMP ... maintaining a sufficient sample size or by standardising summary statistics against some chronologically ... would only affect the ability to detect long term changes in a parameter if sampling variance can also ...

   Meeting Document : WG-EMM-03/48 : Auteur(s): L.M. Emmerson, C. Southwell, J. Clarke and K. Kerry (Australia)

4. Otolith microstructure of juvenile fish, the first annulus radius and pelagic stage duration of icefish Champsocephalus gunnari (Channichthyidae) in the South Georgia area

   represent a mixture of two year-classes of 1999-2000 and 2000-2001. The mean width of the daily growth zone ... . The length of the young-of- the-year varies within a broad range as a result of prolonged spawning ...

   Meeting Document : WG-FSA-03/75 Rev. 1 : Auteur(s): L.V. Shcherbich (Russia)

5. Antarctic fur seals in the South Shetland Islands: pup production and population trends

   reports the results of a ground survey of all known fur seal colonies from Smith to Elephant Islands from ... %) and San Telmo Islands (21%). Dead pups accounted for 1.37% of the total. A comparison with previous ... censuses over a 15yr period (1987, 1992, 1994, and 1996) indicates the rate of increase in fur seal ...

   Meeting Document : WG-EMM-02/51 : Auteur(s): M.E. Goebel (USA), V.I. Vallejos (Chile), W.Z. Trivelpiece, R.S. Holt (USA) and J. Acevedo (Chile)

6. Report of the Workshop for the International Coordinated Survey in conjunction with CCAMLR-2000 Survey

   %), 39.5 g m-2 (CV 15.2 %) and 43.0 g m-2 (CV 14.1 %) over a nine-week period. Maps of biomass density for ... a change in the demographic structure of the population. The smaller size modes disappear and krill ... include analyses of patch sizes and densities along transects as a means of investigating variations in ...

   Meeting Document : WG-EMM-01/68 : Auteur(s): Delegations of Japan, Rep. of Korea, USA and Peru

7. Distribution, demography and discard mortality of crabs caught as by-catch in an experimental pot fishery for toothfish in the South Atlantic

   South Georgia of a method of fishing for toothfish (Dissostichus eleginoides) using pots. A significant ... belt 85% – 90% of crabs would survive discarding, whereas on the vessel where crabs were emptied down a ...

   Meeting Document : WG-FSA-01/32 : Auteur(s): M.G. Purves (South Africa), D.J. Agnew, G. Moreno, C. Yau and G. Pilling (United Kingdom)

8. 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

   here. Only six entangled seals were observed during the winter, representing a 53% decrease from1998 ... and a 94% decrease on the highest previous total (1992). Four of these animals wereentangled in ... plastic packaging bands, double that observed in the 1998 winter, and a return to thehigh levels observed ...

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

9. Entanglement of Antarctic fur seals Arctocephalus gazella in man made debris at Signy Island, South Orkney Islands 1997/98

   number of fur seals in total that came ashore during the season. Data are compared with results from a ... bands at Bird Island was higher than in recent years and there was a decrease in the incidence of net ... (nil at Bird Island), a slight drop (8%) from 1996/97. The decrease in observed entanglements is ...

   Meeting Document : SC-CAMLR-XVII/BG/12 : Auteur(s): Delegation of the United Kingdom

10. Major fishery events in Kerguelen Islands: Notothenia rossii, Champsocephalus gunnari, Dissostichus eleginoides – current distribution and status of stocks

    biomass in these shelf stocks. Only the icefish fishery maintained a series of strong cohorts with ... -sea stocks have been naturally protected at the beginning of 1990. It maintained a high amount of ... biomass despite a strong IUU fishing episode from 1997-2004. The management of the stock needs to consider ...

    Meeting Document : WS-MPA-11/P04 : Auteur(s): G. Duhamel, P, Pruvost, M. Bertignac, N. Gasco and M. Hautecoeur

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