Papers by Elzbieta Szeląg-Wasielewska
Wiadomości Ekologiczne, 2011
Oceanological and Hydrobiological Studies, 2007
... In turn, the negligible contribution of picocyanobacteria to phytoplankton biomass in Lake Mo... more ... In turn, the negligible contribution of picocyanobacteria to phytoplankton biomass in Lake Modre is probably due to its increased trophic ... is consistent with the report by Weisse and Mindl (2002), who found that picocyanobacteria are highly sensitive bioindicators of contaminant ...
Fragmenta Floristica et Geobotanica. Series:Polonica, 1996
Verhandlungen, Sep 1, 1993
Oceanological and Hydrobiological Studies, 2005
Tous droits réservés © Revue des sciences de l'eau, 2005 Ce document est protégé par la loi sur l... more Tous droits réservés © Revue des sciences de l'eau, 2005 Ce document est protégé par la loi sur le droit d'auteur. L'utilisation des services d'Érudit (y compris la reproduction) est assujettie à sa politique d'utilisation que vous pouvez consulter en ligne.
Oceanological and Hydrobiological Studies, 2005
Verhandlungen, Oct 1, 2002
Seria Biologiczna. Uniwersytet im. Adama Mickiewicza w Poznaniu, 2008
Teka Komisji Ochrony i Kształtowania Środowiska Przyrodniczego, 2006
In a small, mid-forest Lake Kociolek, located in the Wielkopolska National Park (west Poland), ph... more In a small, mid-forest Lake Kociolek, located in the Wielkopolska National Park (west Poland), phytoplankton diversity, abundance and biomass were studied from March till November 2003. Special attention was paid to picoplankton. Green algae were the most diverse, as they accounted for nearly 50% of all recorded phytoplanktonic species, while picocyanobacteria were the most abundant. The biomass of phototrophs, measured as chlorophyll a concentration, ranged from 1.1 to 17.4 μg l (mean 5.9 μg l). The mean contribution of picoplankton to the total biomass of phytoplankton was high, as it reached 32%.
Oceanological and Hydrobiological Studies, 2004
Polish Journal of Environmental Studies, 2006
Phytoplankton composition and biomass were studied in a small suburban lake within the city of Po... more Phytoplankton composition and biomass were studied in a small suburban lake within the city of Poznań (western Poland) on the basis of water samples taken in epilimnion. Results obtained in 1999 were compared with the first study period, of 1978. In the first period, 100 phytoplankton taxa were found and diatoms were the largest group of species (29% of all taxa), while in the second period 117 phytoplankton taxa were recorded and green algae dominated (50%). The mean phytoplankton biomass increased nearly 2-fold over the two decades and the trophic state index was higher in 1999. Picophytoplankton, whose seasonal fluctuations were analyzed only in 1999, accounted for 0.6% to 31.5% (mean 12.8%) of total phytoplankton biomass.
Verhandlungen, Mar 1, 1991
Journal of Water Science, Apr 12, 2005
This study présents results of investigations on abundance and biomass of the main communities of... more This study présents results of investigations on abundance and biomass of the main communities of the microbial loop (heterotrophic bacteria, autotrophic picoplankton, heterotrophic flagellâtes, ciliated protozoa) as well as nanoand microalgae in the large (525 ha) and deep (48 m) oligo-mesotrophic lake Bobiçcinskie Wielkie located in West Pomerania, Poland. Samples were taken from the pelagial zone in 1996. Within organisms of picoplankton size the heterotrophic bacteria were the most abundant trophic group. Their biomass, together with the much lower abundant autotrophic picoplankton (3.5 to 5.4 ug-C-L"" 1), constituted 15% to 22% of the total microbial biomass. The sum of biomasses of heterotrophic flagellâtes and ciliated protozoa was similar at ail depth (3.0-3.8 ug-C-L" 1), ranging between 8-24% of total biomass. Phytoplankton organisms larger than 2.0 um represented the biggest part of the total microbial biomass, Le. from 50% to 78% (8.4-27.5 ug-C-L-1). The microplankton constitutes the largest part of the phytoplanktonic biomass. Whereas the diatoms and cryptomonads were the most abundant in the upper layers of the lake. The filamentous cyanobacteria of the genus Planktothrix dominated in the deeper waters.
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Papers by Elzbieta Szeląg-Wasielewska