The signal crayfish is a North American species of crayfish. It was introduced to Europe in the 1960s to supplement the North European Astacus astacus fisheries, which were being damaged by crayfish plague, but the imports turned out to be a carrier of that disease. The signal crayfish is now considered an invasive species across Europe, Japan, and California ousting native species there.
The Astacidae comprise the freshwater crayfish native to Europe and western North America. The family is made up of three genera: The genera Astacus and Austropotamobius are both found throughout Europe and parts of western Asia, while Pacifastacus is found on the Pacific coast of the United States and British Columbia and includes the signal crayfish and the Shasta crayfish.
Procambarus clarkii is a species of cambarid freshwater crayfish, native to northern Mexico, and southern and southeastern United States, but also introduced elsewhere, where it is often an invasive pest. It is known variously as the red swamp crayfish, Louisiana crawfish, or mudbug.
Austropotamobius pallipes is an endangered European freshwater crayfish, and the only crayfish native to the British Isles. Its common names include white-clawed crayfish and Atlantic stream crayfish.
Greenlee Lough is a lough or lake and national nature reserve 3 miles (5 km) north of Bardon Mill, and 1.5 miles (2.4 km)north of the B6318 road in Northumberland, northern England.
Austropotamobius torrentium, also called the stone crayfish, is a European species of freshwater crayfish in the family Astacidae. It is mostly found in tributaries of the Danube, having originated in the northern part of the Balkan Peninsula.
Austropotamobius is a genus of European crayfish in the family Astacidae. It contains four extant species, and one species known from fossils of Barremian age:
Cambarus elkensis, the Elk River crayfish, is a species of crayfish in the family Cambaridae. It is found in North America.
Cambarus veteranus, the Guyandotte River Crayfish, is a species of crayfish in the family Cambaridae. It is found in North America.
Cambarus williami, the Brawleys Fork crayfish, is a species of crayfish in the family Cambaridae. It is found in North America.
Fallicambarus gilpini, the Jefferson County crayfish, is a species of crayfish in the family Cambaridae. It is found in Arkansas and Louisiana.
Fallicambarus gordoni, the Camp Shelby burrowing crayfish, is a species of crayfish in the family Cambaridae. It is found in Mississippi.
Cambarus bartonii is a species of crayfish native to eastern North America, where it is called the common crayfish or Appalachian brook crayfish.
The marbled crayfish or Marmorkrebs, is a parthenogenetic crayfish that was discovered in the pet trade in Germany in the 1990s. Marbled crayfish are closely related to the "slough crayfish", Procambarus fallax, which is widely distributed across Florida. No natural populations of marbled crayfish are known. Information provided by one of the original pet traders as to where the marbled crayfish originated was deemed "totally confusing and unreliable". The informal name Marmorkrebs is German for "marbled crayfish".
Broomlee Lough is an inland lake in Northumberland, England at the southern edge of Northumberland National Park. The lough lies immediately north of the course of Hadrian's Wall. Old legends portray the lake as a repository of hidden treasure.
Halleypike Lough is an inland lake on Haughton common at the southern edge of Northumberland National Park, northeast of Bardon Mill, and 1 mile (1.6 km) north of the B6318 Military Road in Northumberland, northern England. The lake is of Victorian origin and is fished.
Potamon fluviatile is a freshwater crab found in or near wooded streams, rivers and lakes in Southern Europe. It is an omnivore with broad ecological tolerances, and adults typically reach 50 mm (2 in) in size during their 10–12 year lifespan. They inhabit burrows and are aggressive, apparently outcompeting native crayfish.
Stephanie Peay is a British ecologist and crayfish researcher.
Faxonius immunis is a species of crayfish in the family Cambaridae. It is native to North America and it is an introduced species in Europe, where it lives along the Upper Rhine. Its common names include calico crayfish and papershell crayfish.
River Mease SSSI is a 23.0 hectares biological Site of Special Scientific Interest. It is a stretch of the River Mease and its tributary Gilwiskaw Brook, running between Alrewas in Staffordshire and Packington in Leicestershire. It is also a Special Area of Conservation The river goes through private land, but it is crossed by roads and footpaths.
