Summary
Photoautotrophic picoplankton is reported from some lakes located near the Italian Antarctic station of Terra Nova. Observations, carried out by both flow cytometry on water samples and electron microscopy on micro-organisms in cultures from each lake, have confirmed the occurrence in all the environments studied of this fraction accounting, in several cases, for more than the 50% of the phytoplankton, measured as chlorophyll. Cultures of the picoplankton fraction from these waters contained known prokaryotic (Synechococcus) and eukaryotic (Chlorella) genera as well as two unidentified entities, possibly prochlorophytes.
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Andreoli, C., Scarabel, L., Spini, S. et al. The picoplankton in Antarctic lakes of northern Victoria Land during summer 1989–1990. Polar Biol 11, 575–582 (1992). https://doi.org/10.1007/BF00237951
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DOI: https://doi.org/10.1007/BF00237951