www.old.acta-agrophysica.org / semi_year_book

vol. 7, nr. 2 (2006)



 
Biodiversity of phytoplankton in hydrochemically different types of humic lakes in the Drawieński National Park
Tomasz Joniak, Marek Kraska
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Department of Water Protection, Adam Mickiewicz University, ul. Drzymały 24, 60-613 Poznań, Poland

vol. 7 (2006), nr. 2, pp. 369-374
abstract: This work presents the taxonomical composition and number of phytoplankton of three hydrochemically different, mid-forest humic lakes. The largest species abundance of phytoplankton was noted in the oligohumic lake (76 taxa), and decidedly smaller in the mesohumic (42 taxa) and polyhumic (37 taxa) lakes characterized by higher content of humic substance. The value of index of species difference in the mesohumic lake was much lower than in other lakes.
keywords: humic lake, phytoplankton, biodiversity, humic substances
original in: Polish