Functioning of the Lake Rusałka ecosystem in Poznań (western Poland)

• Autorzy: Gołdyn R. , Szeląg-Wasielewska E. , Kowalczewska-Madura K. , Dondajewska R. , Budzyńska A. , Podsiadłowski S. , Domek P. , Romanowicz-Brzozowska W.
• Języki publikacji: EN

Abstrakty

EN

Lake Rusałka is a shallow, artificial, strongly eutrophic reservoir. Thermal stratification is weak and comprises only about 8% of the bottom surface. In summer, the epilimnion is oversaturated with oxygen due to intensive phytoplankton growth (chlorophyll a up to 80.2 μg l^-1), while conditions in the hypolimnion are anaerobic. The high concentration of ammonium nitrogen and low N:P ratio stimulated intense growth of cyanobacteria in the period from June to November. The domination of rotifers in the metazooplankton and low diversity and biomass of benthic macroinvertebrates was the cause of low top-down pressure of these organisms on the phytoplankton. The most advantageous restoration measures were identified to improve water quality and make the recreational use of the lake possible.

Słowa kluczowe

EN

shallow lake; water bloom; cyanobacteria; phytoplankton; zooplankton; macroinvertebrates

• Wydawca: Institute of Oceanography University of Gdańsk
• Czasopismo: Oceanological and Hydrobiological Studies
• Rocznik: 2010
• Tom: Vol. 39, No.3
• Strony: 65--80
• Opis fizyczny: bibliogr. 41 poz., tab., wykr.

Twórcy

autor

Gołdyn R.

autor

Szeląg-Wasielewska E.

autor

Kowalczewska-Madura K.

autor

Dondajewska R.

autor

Budzyńska A.

autor

Podsiadłowski S.

autor

Domek P.

autor

Romanowicz-Brzozowska W.

• Department of Water Protection, Faculty of Biology Adam Mickiewicz University ul. Umultowska 89, 61-614 Poznań, Poland,

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