Originally from North America, the invasive signal crayfish (Pacifastacus leniusculus) has replaced native crustaceans through much of Austria.

Image details
Camera: Canon EOS R
Lens: Sigma 15mm f/2.8 EX DG Diagonal-Fisheye
Location: Helenental, Austria
Date: Feb 2020
Focal Length: 15
Exposure: 10
Aperture: f/22
ISO: 1600

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