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Historical development and past ecological state of two danish shallow lakes |
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| Authors: | |
| Institution: | (1) School of Geography, University of Nottingham, University Park, Nottingham, NG7 2RD, UK;(2) Department of Biology, University of Regina, S4S 0A2, Regina, SK, Canada |
| Abstract: | Background and ScopeLake sediment contains information on the historical development and former conditions of lakes, which is very useful when information about the undisturbed (reference) conditions of a lake is needed. Phytoplankton contains a range of different pigments, some of which are specific for individual algal groups and can be used as diagnostic markers. Phytoplankton pigments in lake sediments are indicators of prototrophic changes in lakes, since the pigments document changes in algae biomass and the composition of phytoplankton communities. Lake sediments can be dated along with pigment analysis by use of the naturally occurring radioactive isotope210Pb. |
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