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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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Abstract/Summary

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): https://doi.org/10.1007/978-3-642-84074-6_9
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)
URI: http://nora.nerc.ac.uk/id/eprint/520716

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