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Everything about Astacus Astacus totally explained

Astacus astacus, the European crayfish, noble crayfish or broad-fingered crayfish, is the most common species of crayfish in Europe, and a traditional foodstuff. Like other crayfish, the European crayfish is restricted to fresh water, living only in unpolluted streams, rivers and lakes. It is found from France throughout central Europe, to the Balkan peninsula, and north as far as parts of the British Isles, Scandinavia, and the western parts of the former Soviet Union. Males may grow up to 16 cm long, and females up to 12 cm.

Ecology

A. astacus is nocturnal and feeds on worms, aquatic insects, molluscs and plants, spending the day resting in a burrow. They become sexually mature after 3–4 years and a series of moults, and breed in October and November. Fertilised eggs are carried by the female, attached to her pleopods, until the following May, when they hatch and disperse. The main predators of A. astacus, both as juveniles and adults, are mink, eels, perch, pike, otters, and muskrats..]] Astacus astacus was once abundant in Europe, although it was expensive to buy, and is considered to be the finest edible crayfish  The consumption of crayfish is an important part of traditional Scandinavian culture, including the kräftskiva, a feast to mark the end of summer.

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