Parastacidae

•  Crayfish

  Crayfish, crawfish, or crawdads — members of the superfamilies Astacoidea and Parastacoidea — are freshwater crustaceans resembling small lobsters, to which they are related. They breathe through feather-like gills and are found in bodies of water that do not freeze to the bottom; they are also mostly found in brooks and streams where there is fresh water running, and which have shelter against predators.

  

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•  Yabby

  Yabby is a name given in Australia to two different kinds of crustacean. The Freshwater yabby is a crayfish of the genus Cherax (infraorder Astacidea, family Parastacidae). They are often caught for food. A widespread species is the common yabby, Cherax destructor. The Marine yabby is a ghost shrimp, which lives in deep burrows in the intertidal zone. They are used as bait for fishing, especially in Queensland and northern New South Wales.

  

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•  Crayfish plague

  Crayfish plague, Aphanomyces astaci, is a water mould that infects crayfish, most notably the European Astacus which dies within a few weeks of being infected. When experimentally tested, species from Australia, New Guinea and Japan were also found susceptible to the infection. It is believed that all species of crayfish world wide are susceptible to one degree or another.

  

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•  Marron

  Marron is a name given to large freshwater crayfish found in the south-west corner of Australia. The species have been identified as Margaret River (hairy) marron and smooth marron, and this is being assessed . The hairy marron occupies a narrow range within the southwestern biogeographical region of Margaret River. It is currently under threat from the wider ranged smooth marron which was introduced to its habitat. Marron make excellent eating, very similar in taste to lobster.

  

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•  Cherax

  Cherax is the largest and most widespread genus of fully and partially aquatic crayfish in the Southern Hemisphere. Its members may be found in lakes, rivers and streams across most of Australia and New Guinea. In Australia the many species of Cherax are commonly known as yabbies. The most common and widely distributed species in Australia is the common yabby (Cherax destructor).

  

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•  Astacidae

  The family Astacidae comprises the freshwater crayfish native to Europe and western North America. It is made up of three genera. Pacifastacus is found on the Pacific coast of the United States and British Columbia and includes the signal crayfish and the Shasta crayfish. The genera Astacus and Austropotamobius are both found throughout Europe and parts of western Asia.

  

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•  Cambaridae

  Cambaridae is the largest of the three families of freshwater crayfish, with over 400 species . Most of the species in the family are native to North America east of the Great Divide, such as the invasive species Procambarus clarkii and Orconectes rusticus, with fewer species living in East Asia and Japan, such as zarigani (Cambaroides japonicus).

  

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•  Crayfish party

  A crayfish party is a traditional summertime eating and drinking celebration in the Nordic countries. The tradition originated in Sweden, where a crayfish party is called a kräftskiva. The tradition has also spread to Finland via the Swedish-speaking population of that country. Crayfish parties are generally held during August, a tradition that started because crayfish harvesting in Sweden was, for most of the 20th century, legally limited to late summer.

  

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•  Lateral Giant Interneuron

  

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•  Medial giant interneuron

  The medial giant interneuron (MG) is an interneuron in the abdominal nerve cord of crayfish. It is part of the system that controls the caridoid escape reaction of crayfish, clawed lobsters, and other decapod crustaceans. Crayfish have a pair of medial giants running the length of the entire animal, and are the largest neurons in the animal.

  

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• Crayfish by likeorhate
• Parastacidae by likeorhate

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  Edward Nathan Sonnenbergs Inc (ENS) is the largest law firm in South Africa, headquartered in Sandton, Johannesburg, with offices in Cape Town, Durban and Stellenbosch. It is one of the "Big Five" law firms in South Africa.

  

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