Summary
The abundance of loricate choanoflagellates at three shallow inshore sites (< 30 m) near Davis, Antarctica from March 1982 to February 1983 showed marked variation which followed the seasonal cycle of chlorophyll a concentration. In summer the concentration of choanoflagellates ranged from 104–106 cells 1−1 while in winter they were in the order of 102 cells 1−1. Species seasonal succession was observed with Bicosta spinifera, Crinolina aperta and Parvicorbicula socialis, organisms which dominated the summer population, being absent in winter whereas Cosmoeca ventricosa and Saepicula leadbeateri were found only in winter. Acanthocorbis unguiculata, Calliacantha simplex and Diaphanoeca grandis were present throughout the year.
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Marchant, H.J., Perrin, R.A. Seasonal variation in abundance and species composition of choanoflagellates (Acanthoecideae) at Antarctic coastal sites. Polar Biol 10, 499–505 (1990). https://doi.org/10.1007/BF00233698
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DOI: https://doi.org/10.1007/BF00233698