Mass fish killed in European river running through Poland and Germany, blamed on toxic algae
Image Credit: strait times
The recent mass fish deaths in the Oder river that runs through Poland and Germany were caused by the proliferation of brackish water algae, which in turn was triggered by a sudden increase in the river's salinity levels, according to a report. Fishermen first discovered dead fish in the river near the Polish town of Olawa at the end of July, reports Xinhua news agency.