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Crayfish are also found in some non-coastal wetlands; eight species of crayfish live in Iowa, [18] for example. In 1983, Louisiana designated the crayfish, or crawfish as they are commonly called, as its official state crustacean. [ 19 ]
Faxonius virilis is a species of crayfish known as the virile crayfish, northern crayfish, eastern crayfish, and lesser known as the lake crayfish or common crawfish. Faxonius virilis was reclassified in August 2017, and the genus was changed from Orconectes to Faxonius.[4] It is native to the central United States, east to tributaries of Lake ...
The Tasmanian giant freshwater crayfish (Astacopsis gouldi), also called Tasmanian giant freshwater lobster, is the largest freshwater invertebrate and the largest freshwater crayfish species in the world. The species is only found in the rivers below 400 metres (1,300 ft) above sea level in northern Tasmania, an island-state of Australia.
The signal crayfish (Pacifastacus leniusculus) 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 ...
Measurement of a rusty crayfish. Adult rusty crayfish can reach 10 centimeters (4 inches) in length, although they reach maturity at about 4.4 cm (1.7 in), [10] and can range in color from greenish grey, to reddish brown, [11] [12] [13] They can be easily recognized by two "rusty", reddish colored spots on the sides of their back and their large front claws with black bands around the tips. [14]
The marbled crayfish or Marmorkrebs (Procambarus virginalis) is a parthenogenetic crayfish that was discovered in the pet trade in Germany in 1995. [4][5] Marbled crayfish are closely related to the "slough crayfish", Procambarus fallax, [6] which is widely distributed across Florida. [7] No natural populations of marbled crayfish are known.
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. Like other true crayfish, A. astacus is restricted to fresh water, living only in unpolluted streams, rivers, and lakes. It is found from France throughout Central Europe, to the ...
C. quadricarinatus is often kept in aquariums worldwide, and is the only species of crayfish that can be kept in indoor aquaria for ornamental use in the UK (except Scotland) without a licence. [7] [8] It is farmed commercially in Queensland and the Northern Territory, and is harvested at between 35–130 grams (1.2–4.6 oz). [6]
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