The main aim of this case study was to analise the seasonal changes in the chemical composition of sediments from four stations located in the Pomeranian Bay. The investigations were carried out in four periods (March and July 1996, and May and October 1997).
The following parameters were investigated:
organic carbon and nitrogen,
total phosphorus and organic phosphorus,
loss on ignition and redox potential.
On the basis of these results the influence of the following processes and phenomena was noted: the early spring phytoplankton bloom dominated by diatoms (March 1996); the intense inflow of allochthonous matter brought into the Bay with the waters of the Swina (May 1997); the summer bloom of blue-green algae and dinoflagellates (July 1996); the consequences of the summer 1997 flood which occurred in southern Poland (October 1997).
Dorota Miss / Mrs Burska Institute of Oceanography, Gdansk University / English al. Marsz. Pilsudskiego 46 81-378 Gdansk Website: www.pasat.ocean.univ.gda.pl