Foto de stock - 14 November 2023, Lower Saxony, Wallenhorst: View of a part of a fish-passable crayfish barrier that was flooded by high water. Landscape planners have installed a crayfish barrier at a point on the River Nette. It is intended to protect the fish stocks in the river from the invasive signal crayfish, which has already arrived in the lower and middle reaches of the Nette. Photo: Friso Gentsch/dpa. - Wallenhorst/Lower Saxony/Germany

Imagen: 14 November 2023, Lower Saxony, Wallenhorst: View of a part of a fish-passable crayfish barrier that was flooded by high water.

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