Estimation of reference conditions for phytoplankton in a naturally eutrophic shallow lake

Autor:	Mauri Pekkarinen, Liisa Lepistö, Jarkko Rapala, Ilkka Sammalkorpi, Pirkko Kauppila, Leena Villa
Rok vydání:	2006
Předmět:	Hydrology Chlorophyll a Biomass (ecology) Ecology Aquatic Science chemistry.chemical_compound Waves and shallow water chemistry Boreal Water Framework Directive Phytoplankton Environmental science Eutrophication Hydrobiology
Zdroj:	Hydrobiologia. 568:55-66
ISSN:	1573-5117 0018-8158
Popis:	Classification of waters using biological quality elements and determination of the degree of deviation from reference levels is a key issue in the Water Framework Directive of EU. Lakes in reference conditions with sufficient biological data are available for several boreal lake types with the exception of naturally eutrophic lakes. An empirical approach is one alternative for estimating the reference conditions of such lakes. We used the water transparency of the naturally eutrophic Lake Tuusulanjarvi recorded in August in the early 1910s to estimate reference values for phytoplankton biomass and chlorophyll a concentrations. Three phytoplankton samples during August 2000-2001 corresponded to the estimated reference values for total biomass (
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::543dca1e242507217d0abd86bc39c9ce https://doi.org/10.1007/s10750-006-0032-4 Zobrazit plný text záznamu Plný text ve formátu PDF