Horizontal distribution of phytoplankton as related to the spatial heterogeneity of a lake - a case study from two lakes of the Wielkopolski National Park (western Poland)

This study compares phytoplankton communities within macrophyte communities and mid-lake sites along transects in two lakes of the Wielkopolski National Park. Water samples were collected in August 1998 to characterize the phytoplankton communities at these locations and for the physical-chemical analysis of the water. There was phytocoenotic differentiation associated with the sites and the specific water properties in the two lakes, especially between the phytolittoral and mid-lake sites. In addition, there was strong negative correlation in abundance between Aphanizomenon flos-aquae and Aphanizomenon issatschenkoi along the Lake Jaroslawieckie transect.