The distribution and abundance of 15 taxa of birds seen from a vessel in the region of Prydz Bay, Antarctica between November and December 1982 are presented. Antarctic petrels were by far the most frequent in the survey area while Adélie and emperor penguins made up 77% of the observed avian biomass. The distribution and abundance of birds was found to be related to ice conditions, air temperature and wind speed but not to water temperature or air pressure. The extent of species associations at sea are shown and the possibilities of diurnal fluctuations in bird numbers at sea are examined.
- 1 - sciences appliquees, technologies et medecines
- 2 - sciences biologiques et medicales
- 3 - sciences biologiques fondamentales et appliquees. psychologie
- 4 - psychologie. psychophysiologie