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The recent diatom history of Loch Leven, Kinross
Author(s) -
HAWORTH ELIZABETH Y.
Publication year - 1972
Publication title -
freshwater biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.297
H-Index - 156
eISSN - 1365-2427
pISSN - 0046-5070
DOI - 10.1111/j.1365-2427.1972.tb00366.x
Subject(s) - diatom , eutrophication , dominance (genetics) , taxon , phytoplankton , plankton , biology , ecology , botany , oceanography , geology , nutrient , biochemistry , gene
Summary Diatoms in the top metre of lake sediment have been studied for indications or recent changes in the environment of Loch Leven. The diatoms indicate a eutrophic, alkaline lake with Melosira italica ssp. subarctica, Tabellaria Flocculosa and Stephanodiscus astraea the dominant taxa at the base of the 1‐m section. There is then an appeance of Melosira ambigua and Stephanodiscus hantzschii suggesting a richer environment. Post A.D. 1816 changes in taxa suggest possible correlation with the lowering of lake level in 1830 and the dominance of Diatoma elongatum, Cyclotella pseudostelligera, Stephanodiscus astraea var. minutula, S. tenuis, S. hantzschii , and Synedra rumpens and var. soctica in zone 4 agrees with present‐day plankton records.