After 150 years of contact, no resistance has been discovered in native European crayfish.

The arms show a black European crayfish (Astacus astacus) on a gold background.

The European crayfish is susceptible to crayfish plague which is spread by the introduced signal crayfish.

In 2003, Upper Bavaria began a project to stock Walchensee again with European crayfish Astacus astacus.

Crayfish plague caused a population of European Crayfish to disappear in 1984, subsequently replaced by Signal Crayfish introduced throughout the 1990s.

In the creeks the Brown Trout, the White-throated Dipper, the Brook lamprey and the European crayfish can be found.

Astacus astacus, the European crayfish, noble crayfish or broad-fingered crayfish, is the most common species of crayfish in Europe, and a traditional food source.

From 1907, crayfish plague, an infectious disease caused by the water mould Aphanomyces astaci, damaged stocks of the native European crayfish Astacus astacus.

We can also see here European Crayfish, Alpine Newt, European and Green Toad, European Tree Frog and other species of amphibians.

It is also a habitat for the indigenous European crayfish, which is currently threatened in the UK by a plague carried by the Signal crayfish introduced from America.

European crayfish was observed in 1989 and Signal crayfish, illegally introduced during the 1990s, is feared to threaten the population of Stone Loach and to bring crayfish plague into the stream.

The decline of European crayfish has been proposed as a factor in the drop in mink numbers, as minks are notably absent in the eastern side of the Urals, where crayfish are also absent.

Several attempts have been made to restore the extinct noble crayfish populations.

The entire area today consists of about 50 artificial ponds where trout, carp, tench, pike, ide, signal crayfish and noble crayfish are extensively farmed.

Astacus astacus, the European crayfish, noble crayfish or broad-fingered crayfish, is the most common species of crayfish in Europe, and a traditional food source.

In Romania, it is present in the Apuseni Mountains and in the Carpathian foothills to the southwest, overlapping slightly with the distribution of the noble crayfish Astacus astacus.

A. leptodactylus can be distinguished most easily from the European or broad-fingered crayfish, Astacus astacus, by the relatively thinner "fingers" of the claws.

Astacus astacus, the European crayfish, noble crayfish or broad-fingered crayfish, is the most common species of crayfish in Europe, and a traditional food source.

The arms show a black European crayfish (Astacus astacus) on a gold background.

Like other crayfish, Astacus astacus is restricted to fresh water, living only in unpolluted streams, rivers and lakes.

From 1907, crayfish plague, an infectious disease caused by the water mould Aphanomyces astaci, damaged stocks of the native European crayfish Astacus astacus.

The Astacus astacus (or noble crayfish, European crayfish, and broad-fingered crayfish) is a species of crayfish in Europe.

The Astacus astacus can be found living in France, Central Europe, Balkan peninsula, the British Isles, Scandinavia, and western parts of the former Soviet Union.

It was introduced to Europe in the 1960s to supplement the Scandinavian Astacus astacus fisheries, which were being damaged by crayfish plague, but the imports turned out to be a carrier of that disease.

In northern Europe, the populations are self maintaining but not expanding, while in southern Europe, P. clarkii is multiplying and actively colonising new territory, at the expense of the native crayfish, Astacus astacus and Austropotamobius spp.