"of the genus ""Jasus"" that is indigenous to much of southern Oceania, while the freshwater species are usually called ""yabby"" or """", from the indigenous Australian and Māori names for the animal respectively, or by other names specific to each species. Exceptions include western rock lobster (of the Palinuridae family) found on the west coast of Australia; the Tasmanian giant freshwater crayfish (from the Parastacidae family) found only in Tasmania; and the Murray crayfish found along Australia's Murray River. In Singapore, the term ""crayfish"" typically refers to ""Thenus orientalis"", a seawater crustacean from the slipper lobster family. True crayfish are"
"Range in Australia. Crayfish Crayfish, also known as crawfish, crawdads, crawlfish, crawldads, freshwater lobsters, mountain lobsters, mudbugs or yabbies, are freshwater crustaceans resembling small lobsters (to which they are related). Taxonomically, they are members of the superfamilies Astacoidea and Parastacoidea. They breathe through feather-like gills. Some species are found in brooks and streams where there is running fresh water, while others thrive in swamps, ditches, and paddy fields. Most crayfish cannot tolerate polluted water, although some species such as ""Procambarus clarkii"" are hardier. Crayfish feed on animals and plants, either living or decomposing, and detritus. The name ""crayfish"" comes from"
"Murray crayfish The Murray crayfish, Euastacus armatus, is a species of freshwater crayfish endemic to Australia that belongs to the family Parastacidae. The Murray crayfish has the largest geographic range of any of the ""Euastacus"" crayfish in Australia, being found in the Murray and Murrumbidgee Rivers as well as many of their tributaries. Murray crayfish are also known as ""Murray River crayfish"", ""Murray crays"", ""freshwater crays"", ""spiny freshwater crays"", ""spinies"" and in the Wagga Wagga region of southern New South Wales they are simply known as ""lobsters"". Today adults commonly grow to in length. In the past however they have"
"world's largest crayfish, the Tasmanian giant freshwater crayfish, measuring up to 76 cm long and weighing 4.5 kg. The crayfish genus ""Cherax"" includes the common yabby, in addition to the farmed species marron and Queensland red claw. Species from the genus ""Engaeus"", commonly known as the land crayfish, are also found in Australia. ""Engaeus"" species are not entirely aquatic, because they spend most of their lives living in burrows. Australia has seven species of freshwater crab from the genus ""Austrothelphusa"". These crabs live burrowed into the banks of waterways and can plug their burrows, surviving through several years of drought."
"of the boiled interior. Like all crustaceans, crawfish are not kosher because they are aquatic animals that do not have both fins and scales. They are therefore not eaten by observant Jews. During the Middle Ages in Scandinavia, ""crayfish were counted among the insects, and that sort of animal nobody would put away in the mouth"". Australia is home to genus ""Cherax"" which is distinct from European, Asian and North American species. Two of the Australian edible crayfish are the common yabby (""C. destructor"") and the red claw (""C. quadricarinatus""). The common yabby is closest in size to the North"
"to the infra-order Thalassinidea. In Australia they are called ""yabbies"". The monophyly of the group is not certain; recent studies have suggested dividing the group into two infraorders, Gebiidea and Axiidea. A wide variety of non-decapod crustaceans are also commonly referred to as shrimp. This includes the brine shrimp, clam shrimp, fairy shrimp and tadpole shrimp belonging to the branchiopods, the lophogastridan shrimp, opossum shrimp and skeleton shrimp belonging the Malacostraca; and seed shrimp which are ostracods. Many of these species look quite unlike like the commercial decapod shrimp that are eaten as seafood. For example, skeleton shrimp have short"
"Spiny lobster Spiny lobsters, also known as langustas, langouste, or rock lobsters, are a family (Palinuridae) of about 60 species of achelate crustaceans, in the Decapoda Reptantia. Spiny lobsters are also, especially in Australia, New Zealand, Ireland, South Africa, and the Bahamas, called crayfish, sea crayfish, or crawfish (""kreef"" in South Africa), terms which elsewhere are reserved for freshwater crayfish. The furry lobsters (""e.g."" ""Palinurellus"") were previously separated into a family of their own, the Synaxidae, but are usually considered members of the Palinuridae. The slipper lobsters (Scyllaridae) are their next-closest relatives, and these two or three families make up"
"Market. Common yabby The common yabby (""Cherax destructor"") is an Australian freshwater crustacean in the Parastacidae family. It is listed as a vulnerable species of crayfish by the World Conservation Union (IUCN), though the validity of this listing is questionable; wild yabby populations remain strong, and have expanded into new habitats created by reservoirs and farm dams. Other names frequently used for ""Cherax destructor"" include the blue yabby or cyan yabby. Its common name of ""yabby"" is also applied to many other Australian ""Cherax"" species of crustacean (as well as to marine ghost shrimp of the infraorder Thalassinidea). Yabbies occasionally"
"Crayfish Crayfish, also known as crawfish, crawdads, crawlfish, crawldads, freshwater lobsters, mountain lobsters, mudbugs or yabbies, are freshwater crustaceans resembling small lobsters (to which they are related). Taxonomically, they are members of the superfamilies Astacoidea and Parastacoidea. They breathe through feather-like gills. Some species are found in brooks and streams where there is running fresh water, while others thrive in swamps, ditches, and paddy fields. Most crayfish cannot tolerate polluted water, although some species such as ""Procambarus clarkii"" are hardier. Crayfish feed on animals and plants, either living or decomposing, and detritus. The name ""crayfish"" comes from the Old French"
"modern distribution of crayfish, which are most abundant in temperate regions, and live in the tropics chiefly in cooler, montane environments. Palaeoechinastacus Palaeoechinastacus australianus is a species of freshwater crayfish known from Early Cretaceous fossils from Victoria, Australia. ""Palaeoechinastacus"" is known from one partial body fossil, which is the holotype, and has been deposited in the National Museum of Victoria in Melbourne as lot number NMV-P186041. Two specimens, each showing a single chela (claw) were deposited as lots NMV-P186042 and NMV-P186009, but are not part of the type series, and are therefore considered to be ""hypotypes"". The body fossils were"
"species, ""Cherax tenuimanus"" and ""C. cainii""), red-claw crayfish (""Cherax quadricarinatus""), common yabby (""Cherax destructor"") and western yabby (""Cherax preissii""). The marron are some of the largest crayfish in the world. They grow up to several pounds in size. ""C. tenuimanus"" is critically endangered, while other large Australasian crayfish are threatened or endangered. Australia is home to the world's two largest freshwater crayfish – the Tasmanian giant freshwater crayfish ""Astacopsis gouldi"", which can achieve a mass of over and is found in rivers of northern Tasmania, and the Murray crayfish ""Euastacus armatus"", which can reach and is found in much of"
"crayfish in the world is the Tasmanian giant freshwater crayfish (""Astacopsis gouldi""), found on the Australian island of Tasmania, and the genus ""Astacopsis"" is now known to be a very closely related sister genus to ""Euastacus"".) The genera ""Cherax"" and ""Euastacus"" continue a trend present in many Australian native freshwater fish genera of speciation into generalist lowland and specialist upland species. Generally, ""Cherax"" species inhabit lowland rivers at low to medium altitudes and swamps and ephemeral waters in inland areas of Australia including the Murray-Darling Basin. Conversely, ""Euastacus"" species are only found in permanent waters and generally inhabit upland rivers"
"are enforced. Marron have been introduced to Kangaroo Island in South Australia, where they have been commercially farmed, and have established feral populations in local waterways. Marron Marron is a name given to two closely related species of crayfish (also known as yabbies) in Western Australia. Formerly considered a single species, it is now recognised as comprising two species, the critically endangered ""Cherax tenuimanus"", and the species which is outcompeting it, ""Cherax cainii"". Marron are considered a luxury product and are the subject of a developing aquaculture industry in Western Australia and other Australian states. Total Australian production of farmed"
"family (""Jasus"", ""Projasus"", and the furry lobster ""Palinurellus""), and its form can distinguish different species. Spiny lobster Spiny lobsters, also known as langustas, langouste, or rock lobsters, are a family (Palinuridae) of about 60 species of achelate crustaceans, in the Decapoda Reptantia. Spiny lobsters are also, especially in Australia, New Zealand, Ireland, South Africa, and the Bahamas, called crayfish, sea crayfish, or crawfish (""kreef"" in South Africa), terms which elsewhere are reserved for freshwater crayfish. The furry lobsters (""e.g."" ""Palinurellus"") were previously separated into a family of their own, the Synaxidae, but are usually considered members of the Palinuridae. The"
"Euastacus Euastacus is a genus of freshwater crayfish known as ""spiny crayfish"". They are found in the south-east of the Australian mainland, along with another genus of crayfish, ""Cherax"". Both genera are members of the family Parastacidae, a family of freshwater crayfish restricted to the Southern Hemisphere. ""Euastacus"" crayfish are distinguished from the smooth-shelled ""Cherax"" species by the short robust spikes on their claws and carapace, and frequently, their larger size. Many ""Euastacus"" species grow to a relatively large size, with the Murray River crayfish (""Euastacus armatus"") being the second largest freshwater crayfish species in the world. (The largest freshwater"
"not native to Singapore, but are commonly found as pets, or as an invasive species (""Cherax quadricarinatus"") in the many water catchment areas, and are alternatively known as ""freshwater lobsters"". The body of a decapod crustacean, such as a crab, lobster, or prawn (shrimp), is made up of twenty body segments grouped into two main body parts, the cephalothorax and the abdomen. Each segment may possess one pair of appendages, although in various groups these may be reduced or missing. On average, crayfish grow to in length, but some grow larger. Walking legs have a small claw at the end."
"Arripis Arripis is a genus of marine fishes from Australia and New Zealand, known as Australian salmon, kahawai and Australian herring. They are the only members of the family Arripidae. Despite the common name, Australian salmon are not related to the salmon family Salmonidae of the Northern Hemisphere, just as Australian herring are not related to herring of the Northern Hemisphere, but belong to the order Perciformes of perch-like fishes. Australian salmon were named so by early European settlers after their superficial resemblance to the salmoniform fishes. Relatively long-lived fish, Australian salmon are a favoured target of recreational fishers, and"
"Thalassinidea Thalassinidea is a former infraorder of decapod crustaceans that live in burrows in muddy bottoms of the world's oceans. In Australian English, the littoral thalassinidean ""Trypaea australiensis"" is referred to as the ""yabby"" (a term which also refers to freshwater crayfish of the genus ""Cherax""), frequently used as bait for estuarine fishing; elsewhere, however, they are poorly known, and as such have few vernacular names, ""mud lobster"" and ""ghost shrimp"" counting among them. The burrows made by thalassinideans are frequently preserved, and the fossil record of thalassinideans reaches back to the late Jurassic. The group was abandoned when it"
"predators which include abalone and rock lobster. Introduced invertebrate pests include the Asian mussel, New Zealand green-lipped mussel, black-striped mussel and the Northern Pacific seastar, all of which displace native shellfish. There are many unique marine crustaceans in Australian waters. The best-known class, to which all the edible species of crustacean belong, is Malacostraca. The warm waters of northern Australia are home to many species of decapod crustaceans, including crabs, false crabs, hermit crabs, lobsters, shrimps, and prawns. The peracarids, including the amphipods and isopods, are more diverse in the colder waters of southern Australia. Less-well-known marine groups include the"
"Marron Marron is a name given to two closely related species of crayfish (also known as yabbies) in Western Australia. Formerly considered a single species, it is now recognised as comprising two species, the critically endangered ""Cherax tenuimanus"", and the species which is outcompeting it, ""Cherax cainii"". Marron are considered a luxury product and are the subject of a developing aquaculture industry in Western Australia and other Australian states. Total Australian production of farmed marron was 30 tons in 1996. In Western Australia, recreational fishing for marron is tightly controlled, with a limited season, permits are required and minimum sizes"
"Cherax Cherax is the most widespread genus of fully aquatic crayfish in the Southern Hemisphere. Together with ""Euastacus"", it is also the largest crayfish genus 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""). It is generally found in lowland rivers and streams, lakes, swamps and impoundments at low to medium altitude, largely within the Murray–Darling Basin. Common yabbies are found"
"with the red swamp and white river crawfish being the two most popular species to harvest. Crawfish are a special part of Cajun culture dating back hundreds of years. A variety of cottage industries have developed as a result of commercialized crawfish iconology, such as products with crawfish attached to wooden plaques, T-shirts with crawfish logos, and crawfish pendants, earrings and necklaces made of gold or silver. Australia has over 100 species in a dozen genera. In Australia, many of the better-known crayfish are of the genus ""Cherax"", and include the marron from Western Australia (now believed to be two"
"Common yabby The common yabby (""Cherax destructor"") is an Australian freshwater crustacean in the Parastacidae family. It is listed as a vulnerable species of crayfish by the World Conservation Union (IUCN), though the validity of this listing is questionable; wild yabby populations remain strong, and have expanded into new habitats created by reservoirs and farm dams. Other names frequently used for ""Cherax destructor"" include the blue yabby or cyan yabby. Its common name of ""yabby"" is also applied to many other Australian ""Cherax"" species of crustacean (as well as to marine ghost shrimp of the infraorder Thalassinidea). Yabbies occasionally reach"
"The extremely primitive freshwater mountain shrimp, found only in Tasmania, are a unique group, resembling species found in the fossil record from 200 MYA. A huge variety of marine invertebrates are found in Australian waters, with the Great Barrier Reef an important source of this diversity. Families include the Porifera or sea sponges, the Cnidaria (includes the jellyfish, corals and sea anemones, comb jellies), the Echinodermata (includes the sea urchins, sea stars, brittle stars, sea cucumbers, the lamp shells) and the Mollusca (includes snails, slugs, limpets, squid, octopus, cockles, oysters, clams, and chitons). Venomous invertebrates include the box jellyfish, the"
"Palaeoechinastacus Palaeoechinastacus australianus is a species of freshwater crayfish known from Early Cretaceous fossils from Victoria, Australia. ""Palaeoechinastacus"" is known from one partial body fossil, which is the holotype, and has been deposited in the National Museum of Victoria in Melbourne as lot number NMV-P186041. Two specimens, each showing a single chela (claw) were deposited as lots NMV-P186042 and NMV-P186009, but are not part of the type series, and are therefore considered to be ""hypotypes"". The body fossils were collected in 1987 and 1989, but it is not known exactly who found them. In addition, a number of trace fossils"
"However, the terms are not used consistently. For example, some authors refer to ""Pandalus montagui"" as an Aesop shrimp while others refer to it as an Aesop prawn. Commonwealth countries, and Ireland, tend to follow British usage. Some exceptions occur in Australia where some authors refer to small species of Palaemonidae as ""prawns"" and call Alpheidae ""pistol shrimp"". Other Australian authors have given the name ""banded coral shrimp"" to the prawn-like ""Stenopus hispidus"" and listed ""the Processidae and Atyidae as shrimps, the Hippolytidae, Alpheidae, Pandalidae and Campylonotoidea as prawns"". New Zealand broadly follows British usage. A rule of thumb given"
"American species, but is not considered to be commercially viable outside Australia because of its relatively slow growth and small size. The ""red claw"" crayfish are twice the size of North American crayfish and they contain 30% edible ""meat"" compared to 15% for ""P. clarkii"". Other Australian species are fairly rare and thus usually are not used for food. Their slow growth generally makes them inefficient for aquaculture. The culinary popularity of crayfish swept across mainland China in the late 1990s. Crayfish is generally served with Mala flavour (a combined flavour of Sichuan pepper and hot chili) or otherwise plainly"
"are their usual habitats. Their habitats are usually shaded by vegetation. Moulting frequency of individuals in the species differ with size smaller individuals moult up to six times a year while larger individuals moult only once. Different sizes moult a different seasons temperature is believed to be the regulating force. Euastacus spinifer Euastacus spinifer is a species of freshwater crayfish endemic to Australia that belongs to the family Parastacidae. Morphological variation is observed in ""Euastacus spinifer"" that originate in different river systems. They are mostly green with reddish-brown joints and bright spines. Detritus forms the staple diet of the species"
"Tasmanian giant freshwater crayfish The Tasmanian giant freshwater crayfish (""Astacopsis gouldi""), also called Tasmanian giant freshwater lobster, is the largest freshwater invertebrate in the world. The species is only found in the rivers below above sea level in northern Tasmania, an island-state of Australia. It is listed as an endangered species on the IUCN Red List due to overfishing and habitat degradation, and it has been prohibited to catch the crayfish since 1998. The diet of the freshwater crayfish varies with age, but predominantly consists of decaying wood, leaves and their associated microbes. They may also eat small fish, insects,"
"Arripis trutta Arripis trutta, known as kahawai in New Zealand and as the Australian salmon in Australia, is one of four species of marine fish within the genus ""Arripis"", found in cooler waters around the south eastern and south western coasts of Australia and the New Zealand coastline. Although it is referred to as a salmon in Australia and its species epithet ""trutta"" is the Latin for ""trout"", it is not related to salmons or trouts of the family Salmonidae. ""Arripis trutta"" has a dark bluish-green body, indistinct rows of spots forming narrow irregular bands on upper sides. Juveniles have"
"Aquaculture in Australia Aquaculture in Australia is the country's fastest growing primary industry, accounting for 34% of the total gross value of production of seafood. 10 species of fish are farmed in Australia, and production is dominated by southern bluefin tuna, Atlantic salmon and barramundi. Mud crabs have also been cultivated in Australia for many years, sometimes leading to over-exploitation. Traditionally, this aquaculture was limited to pearls, but since the early 1970s, there has been significant research and commercial development of other forms of aquaculture, including finfish, crustaceans, and molluscs. Australia produces 240,000 tonnes of fish a year with aquaculture"
"classes Remipedia, Cephalocarida, Branchiopoda, Maxillopoda (which includes the barnacles, copepods and fish lice), and the Ostracoda. Notable species include the Tasmanian giant crab, the second largest crab species in the world, found in deep water, and weighing up to 13 kg, and the Australian spiny lobsters, such as the western rock lobster, which are distinct from other lobster species as they do not have claws. Introduction of exotic fauna in Australia by design, accident and natural processes has led to a considerable number of invasive, feral and pest species which have flourished and now impact the environment adversely. Introduced organisms"
"Crustacean Crustaceans (Crustacea ) form a large, diverse arthropod taxon which includes such familiar animals as crabs, lobsters, crayfish, shrimp, krill, woodlice, and barnacles. The crustacean group is usually treated as a subphylum, and because of recent molecular studies it is now well accepted that the crustacean group is paraphyletic, and comprises all animals in the Pancrustacea clade other than hexapods. Some crustaceans are more closely related to insects and other hexapods than they are to certain other crustaceans. The 67,000 described species range in size from ""Stygotantulus stocki"" at , to the Japanese spider crab with a leg span"