Borghini, Francesca; Colacevich, Andrea; Bargagli, Roberto (2007): Water chemistry, and pigments and geochemistry of sediments from northern Victoria Land lakes [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.807926, Supplement to: Borghini, F et al. (2007): Water geochemistry and sedimentary pigments in northern Victoria Land lakes, Antarctica. Polar Biology, 30, 1173-1182, https://doi.org/10.1007/s00300-007-0274-2
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Abstract:
Total concentrations of algal pigments, organic C, C, N, P and S were determined in surface sediments from the littoral zone of 21 lakes in ice-free areas of northern Victoria Land (Antarctica) with different climatic and environmental conditions. Concentrations of major ions and nutrients were also determined in water samples from the same lakes. The latter samples had extremely variable chemical compositions; however, all the lakes resulted oligotrophic. Pigment concentrations in surface sediments were comparable to those reported for other Antarctic lakes and lower than those in oligotrophic lakes at lower latitudes. Cyanophyta, Chlorophyta and Bacillariophyta were the main taxa identified. These taxa correspond to those reported in previous microscopy-based studies on Antarctic phytoplankton and phytobenthos. Discriminant Function Analysis and Canonical Correspondence Analysis of data indicate that the distribution of pigments in these Victoria Land lakes depends mainly on their geographical location (particularly the distance from the sea) and nutrient status.
Project(s):
Coverage:
Median Latitude: -74.667771 * Median Longitude: 165.350869 * South-bound Latitude: -76.910650 * West-bound Longitude: 161.968100 * North-bound Latitude: -72.608520 * East-bound Longitude: 169.360800
Date/Time Start: 2005-12-01T00:00:00 * Date/Time End: 2005-12-01T00:00:00
Comment:
Data extracted in the frame of a joint ICSTI/PANGAEA IPY effort, see http://doi.pangaea.de/10.1594/PANGAEA.150150
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
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2 datasets
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Datasets listed in this publication series
- Borghini, F; Colacevich, A; Bargagli, R (2007): (Table 3) Pigments and surface sediment chemistry of northern Victoria Land lakes. https://doi.org/10.1594/PANGAEA.807925
- Borghini, F; Colacevich, A; Bargagli, R (2007): (Table 1, 2) Site characteristics and surface water chemistry of northern Victoria Land lakes. https://doi.org/10.1594/PANGAEA.807924