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Crayfish usually have limited home range and so they rest, digest, and eliminate their waste, most commonly in the same location each day. Feeding exposes the crayfish to risk of predation, and so feeding behaviour is often rapid and synchronised with feeding processes that reduce such risks — eat, hide, process and eliminate.
Today, crayfish is consumed mainly boiled, similarly to crayfish dishes in other parts of the world, or prepared with typically Mexican sauces and condiments, particularly in central and southern Mexico. Traditional preparations include soups, tacos and "cocktails" similar to shrimp dishes.
Astacidae is a family of freshwater crayfish native to Europe, western Asia and western North America. The family is made up of four extant (living) genera: The genera Astacus (which includes the European crayfish), Pontastacus (which includes the Turkish crayfish), and Austropotamobius are all found throughout Europe and parts of western Asia, while Pacifastacus (which includes the signal ...
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.
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 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.
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It is known commonly as the Allegheny crayfish [2] and the obscure crayfish. This species lives in slow-moving waterways and pools with rocky substrates, where it hides beneath rocks. [1] It also burrows into the substrate. [2] This species is common to abundant. It faces minor threats in some parts of its range.