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

• Autorzy: Kotwicki L. , Danielewicz J. , Turzyński M. , Węsławski J.M.
• Języki publikacji: EN

Abstrakty

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.

Słowa kluczowe

EN

sandy littoral; beach; filtration; organic matter; Baltic Sea

• Wydawca: Institute of Oceanography University of Gdańsk
• Czasopismo: Oceanological Studies
• Rocznik: 2002
• Tom: Vol. 31, No. 3-4
• Strony: 71--84
• Opis fizyczny: Bibliogr. 23 poz., tab., wykr.

Twórcy

autor

Kotwicki L.

• Institute of Ecology, Polish Academy of Sciences Dziekanów Leśny, 05-092 Łomianki, Poland

autor

Danielewicz J.

• Institute of Oceanology, Polish Academy of Science ul. Powstańców Warszawy 55, 81-712 Sopot, Poland

autor

Turzyński M.

• Institute of Oceanology, Polish Academy of Science ul. Powstańców Warszawy 55, 81-712 Sopot, Poland

autor

Węsławski J.M.

• Institute of Oceanology, Polish Academy of Science ul. Powstańców Warszawy 55, 81-712 Sopot, Poland

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