Preliminary studies on the organic matter deposition and particle filtration processes in a sandy beach in Sopot - southern Baltic Sea

• Authors: l. Kotwicki , J. Danielewicz , M. Turzynski , J.M. Weslawski
• Languages of publication: EN

Abstracts

EN

Sopot?s intensively used sandy beach was studied to assess organic matter deposition and swash water filtration through the sediment on the water line. The swash water contained from 4 to 80 mg Total Suspended Matter (TSM) per dm3, 3 to 12% of it was organic. Phytoplankton ranged from 1 to 15 million cells per dm3, depending on the water turbidity and contained a mixture of pelagic and micro-phytobentic taxa. Plankton larvae and Rotatoria dominated the animal biomass. In the process of wave filtration through the sand all planktonic animals were retained in the sediment, while a number of meiofaunal Nematoda and Ciliata were actively transported (?washed out?) from the upper sediment layers. Macroscopic particle (filamentous algae) deposition in May ranged from 20 to 1000 g POC m-2 per day. Nutrient concentrations were higher in the interstitial water than in the swash water, for most of the year. Hence, we suppose that the Sopot municipal beach serves as a nutrient source for coastal waters.

Keywords

EN

BALTIC SEA; BEACH; FILTRATION; ORGANIC MATTER; SANDY LITTORAL

Discipline

• AQUATIC_SCIENCES: AQUATIC SCIENCES

• Publisher: Institute of Oceanography, University of Gdansk
• Journal: Oceanological Studies
• Year: 2002
• Volume: 31
• Issue: 3-4
• Pages: 71-84

Contributors

author

l. Kotwicki

author

J. Danielewicz

author

M. Turzynski

author

J.M. Weslawski

• Document Type: ARTICLE
• Publication order reference: L. Kotwicki, Institute of Oceanology, Polish Academy of Sciences ul. Powstancow Warszawy 55, 81-712 Sopot, Poland