Habitat requirements of the Charetum intermediae phytocoenoses in lakes of western Poland

Abstract

Abstract:The study presents habitat and phytosociological analyses of the Chara intermedia phytocenoses, rare described in Europe. 16 physico-chemical water parameters were analysed, coming from the samples taken in 20 phytocenoses of 13 lakes located in western Poland. The analysed community appeared in naturally shallow lakes representing last stages of the disappearance of glacial water basins. The study attempts to estimate the bioindicative value of the charophyta meadow Charetum intermediae in relation to its habitat. A particular attention has been paid to the determination of the habitat trophic condition, and to the concentration of elements connected with the hardness of water and the content of humic substances. The study shows crucial habitat gradients of the C. intermediae association, taking into account also the species composition of phytocenoses.

Site-dependent species composition, structure and environmental conditions of Chara tomentosa L. meadows, western Poland

“…Typically, these communities develop as species-poor carpets, usually being monospecific stands or with minor, if any, contributions of other macrophyte species, and cover up to 100% of the stand surface (Mulderij, 2006;Gąbka et al, 2007;Pełechaty et al, 2010). C. tomentosa commonly forms such compact monospecific submerged meadows.…”

Climate driven changes in the submerged macrophyte and phytoplankton community in a hard water lake

“…Charophyte establishment is limited by reduced light conditions (de Winton et al, 2004). Stoneworts can occur in shallow humic lakes if they grow up to the water surface (Gąbka et al, 2007). These results show that the occurrence of charophytes can be limited mainly by light availability affected by DOC.…”

“…The studies of the phytoplankton biomass, chlorophyll-a concentration and physicochemical parameters of the water in Lake Rogóźno were carried out during the dry (2003( -2006 and wet periods (2007. The water samples were collected monthly (June-August) in 2003, 2005-2007, 2010 and 2013, excluding water hardness, which was determined in 2003, 2008 and 2013.…”

“…During the winter of 2007, with an anomalously warm March (6.3 • C), Lake Rogóźno was not covered with ice, whereas in the very cold winters of 2006 and 2013, with an anomalously cold March, the lake was covered with ice from January to the second half of April. Table 1 The results of ANOVA (F-test) of differences between mean values of physicochemical parameters in the dry (2003( -2006 and wet periods (2007 in Lake Rogóźno. …”

Charophytes (Characeae, Charophyta) of the Puszcza Zielonka Landscape Park in Poland: response to the protection and state of catchment areas of the water bodies

“…pond near the Borówie Lake, the pond at Owińska Struga and the peat pond near Sławica). This species displays a relatively broad trophic tolerance (GąB-Ka 2009, urbaniaK & GąBka 2014), whereas it may be noted that the presence of C. intermedia was associated with shallow bodies situated in forest surroundings whose waters were coloured by humic substances (shallow humotrophic lakes, GąBka et al 2007).…”