Foto de stock - Dead fish float on the Hunte, an inflow of the Duemmer lake near Lemfoerde, Germany, 22 May 2017. The second biggest inland lake of the state is prone to blue algae, which is why bathing is often prohibited. Photo: Friso Gentsch/dpa

Imagen: Dead fish float on the Hunte, an inflow of the Duemmer lake near Lemfoerde, Germany, 22 May 2017. The second biggest inland lake of the state is prone to blue.

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