Abstract
Holocene sea surface temperatures (SST) of the Black Sea have been reconstructed using sedimentary C37
unsaturated alkenones assumed to be derived from the coccolithophorid haptophyte Emiliania huxleyi, whose
fossil coccoliths are an important constituent of the unit I sediments. However, alkenones can also be
biosynthesized by haptophyte species that do not produce microscopic
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