White-clawed crayfish

This species is a bioindicator of its environment, that is to say, it signals the good ecological health of its living environment. It is greenish brown on its back and underside and, as its name suggests, its claws are white. It can grow up to 12 cm in length and can live between 8 and 10 years. Its outer shell has several small characteristic lateral spines. Its mouth is edged with a pair of lateral "teeth". It feeds on plants, small invertebrates, amphibians and dead fish. It can lay 40 to 200 eggs. The young hatch between May and July.