Changes in the Aral Sea ecosystems during the period 1960–1990 N. V. AladinW. T. W. Potts OriginalPaper Pages: 67 - 79
The influence of ionic composition on the distribution of nematode species in springs of the province of Granada (Spain) Amelia OcañaRafael Morales OriginalPaper Pages: 81 - 92
Contribution to the study of african rotifers: rotifers from Mali M. De Ridder OriginalPaper Pages: 93 - 101
Evaluation of the water quality of future tributaries to the planned Dobczyce reservoir (Poland) using macroinvertebrates Tadeusz M. Fleituch OriginalPaper Pages: 103 - 116
Fish production in the Warta River, Poland: a preimpoundment study T. Penczak OriginalPaper Pages: 117 - 129