Paleolimnological evidence for atmospheric pollution, climate and catchment-related changes in alpine chrysophyte stomatocyst assemblages (Tatra, Slovakia)

Kamenik, Christian; Agusti-Panareda, A; Appleby, PG; Dearing, JA; Shilland, EM; Sporka, F; Stefkova, E; Thompson, R (2005). Paleolimnological evidence for atmospheric pollution, climate and catchment-related changes in alpine chrysophyte stomatocyst assemblages (Tatra, Slovakia). Nova Hedwigia(128), pp. 275-293. Cramer

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A stratigraphic study of spheroidal carbonaceous fly-ash particles (SCP) in a sediment core section from high mountain lake Nizne Terianske Pleso (1941 m a. s. l., High Tatra mountains), spanning the last similar to 150 years, revealed a rapid increase in SCP starting 1935-1940 AD. This increase coincided with a rise in ferrimagnetic, paramagnetic and canted antiferromagnetic mineral concentrations indicating atmospheric deposition of pollutants. Statistical analyses revealed that the sub-fossil stomatocyst assemblages from Nizne Terianske Pleso were significantly related to SCP, mineral magnetics, air temperature and diatom-inferred pH. Significant changes in the stomatocyst assemblages coincided with changes in SCP and magnetic mineral concentrations. Our study suggests that atmospheric pollution, climate and catchment-related changes caused major changes in the stomatocyst assemblages.

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