A preliminary study of benthic diatoms in contrasting lake environments

Oppenheim, D.R.. 1990 A preliminary study of benthic diatoms in contrasting lake environments. In: Kerry, K.R.; Hempel, G., (eds.) Antarctic Ecosystems: ecological change and conservation. Berlin, Springer-Verlag, 91-99.

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Eleven of the 17 freshwater lakes from Signy Island, South Orkney Islands, Antarctica were sampled by snorkel divers. A list of diatom taxa identified from benthic samples is presented. Most freshwater taxa listed were rare and only a few taxa were observed abundantly in many lakes. Assemblage composition varied between three broad lake categories: (1) proglacial; (2) oligotrophic; and (3) mesotrophic lakes. Assemblage composition also changed with lake depth in the larger lakes. A second, more detailed study was undertaken on an oligotrophic and a mesotrophic lake. No seasonal trends could be identified. The limitation of the methods used are discussed, and spatial and temporal variability in Antarctic lakes is considered.

Item Type: Publication - Book Section
Digital Object Identifier (DOI):
ISBN: 9783642840760
Additional Keywords: benthic diatom, mesotrophic lake, diatom flora, Antarctic lake, South Orkney Island
Date made live: 15 Aug 2018 11:08 +0 (UTC)

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