Click image to zoom

Mass Fish Die Off In Poland

Dead fishes are being removed from Lake Dzierzno Duze in Rzeczyce, southern Poland on August 20th, 2024. Since the beginning of August, over 115 tons of dead fish have been removed from Lake Dzierzno Duze and the Gliwice Canal. The mass fish die-off is linked with toxic golden algae blooms. The climate ministry oversaw an experiment involving dosing hydrogen peroxide (H2O2), a water treatment agent, into the Klodnica River, which is the main supply of the Gliwice Canal's water. (Photo by Beata Zawrzel/NurPhoto)

Photo ID	#11501368
Date Taken	20 August 2024
Location	N/A
Photographer	Beata Zawrzel/NurPhoto
Category	Environmental Issue
Copyright	© 2026 NurPhoto - Beata Zawrzel/NurPhoto

poland polish europe european gliwice silesia climate environment environmelntal problem crisis water alga algae dead fish fishes environmental disaster ecological lake prymnesium parvum Dead fishes Lake Dzierzno Duze Rzeczyce southern Poland August 20th 2024 115 tons Gliwice Canal mass fish die-off toxic golden algae blooms climate ministry experiment hydrogen peroxide H2O2 water treatment agent Kłodnica River main water supply Beata Zawrzel NurPhoto environmental disaster aquatic ecosystem water pollution algae blooms fish mortality chemical dosing river contamination water quality ecological impact aquatic life water management toxic substances climate intervention freshwater crisis pollution control.