Assessment of water quality in a large lowland river (Narva, Estonia/Russia) using a new Hungarian potamoplanktic method; pp. 243–258

Linking diatom community dynamics to changes in terrestrial vegetation: a palaeolimnological case study of Lake Ķūži, Vidzeme Heights (Central Latvia); pp. 259–280

On the Estonian fauna of Harpacticoida (Crustacea, Copepoda); pp. 281–295

A new species of the genus Dirphia (Lepidoptera: Saturniidae, Hemileucinae) from Ecuador; pp. 296–301

Adaptation of a method for involving environmental aspects in spatial planning of river basin management – a case study of the Narva River basin; pp. 302–320