A diatom record of late Holocene environmental changes in the Gulf of Gdansk

• Authors: M. Witak
• Languages of publication: EN

Abstracts

EN

The aim of this study was to analyse fossil and subfossil diatom floras preserved in a sediment core taken from the Gulf of Gdansk, near the eastern end of the Hel Peninsula. The diatom record, supported by lithology and radiocarbon data, indicates environmental changes during the later stages of development of the Baltic Sea. In the Litorina Sea stage the diatom flora developed under marine conditions, whereas during the Post-Litorina stage there was a decrease in salinity. During the Subatlantic period the sublittoral diatom flora was replaced by shallow water diatoms originating from the coastal zone, and were redeposited in the deeper part of the basin. In the surface sediments the change to a presumably anthropogenically-influenced diatom flora can be attributed to the eutrophication of the Gulf of Gdansk.

Keywords

EN

DIATOM; GDANSK GULF; LATE HOLOCENE; PALAEOECOLOGY

Discipline

• AQUATIC_SCIENCES: AQUATIC SCIENCES

• Publisher: Institute of Oceanography, University of Gdansk
• Journal: Oceanological Studies
• Year: 2000
• Volume: 29
• Issue: 2
• Pages: 57-74

Contributors

author

M. Witak

• Document Type: ARTICLE
• Publication order reference: M. Witak, Institute of Oceanography, University of Gdansk, al. Marszalka Pilsudskiego 46, 81-378 Gdynia, Poland, e-mail: [e-mail]