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The relationship between water chemistry and surface sediment diatom assemblages in maritime Antarctic lakes

Published online by Cambridge University Press:  13 May 2004

V. J. Jones ,
S. Juggins  and
J. C. Ellis-Evans
V. J. Jones
Affiliation:
Environmental Change Research Centre, Department of Geography, University College London, 26 Bedford Way, London WC1H 0AP, UK
S. Juggins
Affiliation:
Environmental Change Research Centre, Department of Geography, University College London, 26 Bedford Way, London WC1H 0AP, UK
J. C. Ellis-Evans
Affiliation:
British Antarctic Survey, Natural Environment Research Council, High Cross, Madingley Road, Cambridge CB3 0ET, UK
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Abstract

Maritime Antarctic freshwater lakes and their catchments are inherently simple systems in an environment which is characterized by strong seasonality. Such lakes offer excellent opportunities to study the interaction of water chemistry and plant communities. The response of diatom species to environmental gradients was assessed by constructing a diatom and water chemistry dataset from 59 lakes at two locations (Livingston Island, South Shetland Islands and Signy Island, South Orkney Islands). Results indicate that diatom species abundance is predominately related to nutrient and salinity gradients. The dataset will be used to create transfer functions which can be applied to sediment core diatom assemblages to reconstruct historical patterns of lake chemistry.

Keywords

diatomstraining datasetnutrientssalinitymultivariate analysis
Type
Papers—Life Sciences and Oceanography
Information
Antarctic Science , Volume 5 , Issue 4 , December 1993 , pp. 339 - 348
Copyright
© Antarctic Science Ltd 1993

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