“The cause of fish deaths in the Dzierżno Duże reservoir is a toxin produced by the 'golden algae' – a single-cell algae. This toxin is deadly to fish and other aquatic organisms with gills” – informed the inter-ministerial team for the Odra on Wednesday, August 7. It was found that the presence and development of the “golden algae” in the Gliwice Canal and the Dzierżno Duże reservoir near Pyskowice is the result of the interaction of several different factors. “This is facilitated by the specific conditions prevailing in these water bodies, including low flow velocity, high salinity and availability of nutrients,” we read.
Fish die in Silesia. “Golden algae bloom is the cause of toxins release”
Silesian Voivode Marek Wójcik has appointed a crisis team to deal with dead fish. On Tuesday, August 6, during a press conference, he announced that approximately 6,710 kg of dead fish were caught from the Dzierżno Duże reservoir and section IV of the Gliwice Canal from Saturday to Tuesday – the service reports. gliwice.naszemiasto.pl.
– The bloom of the “golden algae” is the cause of the release of toxins that kill fish. Today it looks like it is a natural phenomenon related to the development of the “golden algae”. We currently have no data on what is the cause of such a bloom – said Marek Wójcik. Sanitary services assure that there is no threat to residents.
Dead fish in the Gliwice Canal. A barley straw barrier was set up
Until August 19, a ban has been introduced on using the Dzierżno Duże reservoir and section IV of the Gliwice Canal. Signs have appeared on the shore, and officers are watching over the ban. police. A barley straw barrier has been erected between Dzierżno Duży and the Gliwice Canal. – This is a barrier that has the ability to absorb the “golden algae”. The barriers will also be expanded today – said on Tuesday the Silesian Voivode Marek Wójcik, quoted by portalsamorzadowy.pl.