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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.
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.
Cherax boesemani is a relatively large crayfish, adult body length is 5–6 in (13–15 cm). [2] Variable blues, reds, and oranges are the predominant carapace colours, which has led to extensive selective breeding to create new commercial strains , with names such as Blue Moon , Supernova , Papuan red , tricolor and Red Brick .
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Other regional names for crayfish are chacales, chacalines and langostinos. 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 ...
Murray crayfish have large white claws and a dark olive/grey/black carapace, all of which are covered in short robust spikes. [2] In small individuals, the claws are green and yellow. [2] The crayfish begin to breed when they are 15–20 cm (6–8 in) long, which takes between 6 and 9 years. [2]
Cherax, commonly known as yabby/yabbies in Australia, is the most widespread genus of fully aquatic crayfish in the Southern Hemisphere. Various species of cherax may be found in both still and flowing bodies of freshwater across most of Australia and New Guinea. Together with Euastacus, it is also the largest crayfish genus in the Southern ...
Cambaroides japonicus, also known as Japanese crayfish (ニホンザリガニ, Nihon zarigani), is a species of crayfish endemic to Japan. [2] They are small in size (6 cm) and grayish in color. Its front claws are much weaker than the American crayfish, which is an invasive species in Japan.