Ecological assessment of the san river water quality on the area of the San Valley Landscape Park

Abstract

Water of the San River was characterized by good and high ecological status and high diatom richness. During four studied seasons at two sites 353 diatom taxa were identified in total, from which the most numerous were Achnathidium pyrenaicum (Hust.) Kobayasi and Achnanthidium minutissimum (Kütz.) Czarnecki var. minutissimum. Water of the San River, was characterized by high and good water quality (II and I class) in all seasons and at both studied sites.