|
Astacopsis
''Astacopsis'' is a genus of crayfish endemic to the island of Tasmania. There are three extant species, '' Astacopsis gouldi'', '' Astacopsis franklinii'', and '' Astacopsis tricornis''. All are threatened by illegal harvesting, and ''A. gouldi'' is protected by law. ''A. franklinii'' is found in the eastern half of the island, with ''A. tricornis'' taking its place in the west. ''A. gouldi'' is found only in rivers draining into the Bass Strait, except for the Tamar River. The three species were named by naturalist Ellen Clark in 1936. Prior to Clark's revision, all three species were collectively known as ''Astacopsis franklinii''. The most famous depiction of a crayfish of the genus ''Astacopsis'' is in the "Sketchbook of fishes" by convict artist William Buelow Gould, painted at the Macquarie Harbour Macquarie Harbour is a shallow fjord in the West Coast region of Tasmania, Australia. It is approximately , and has an average depth of , with deeper places up to . It is n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tasmanian Giant Freshwater Crayfish
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 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, rotting animal flesh and other detritus when available. ''A. gouldi'' is very long-lived, surviving for up to 60 years. It has previously been reported to attain weights of up to and measure over long; however, in recent years the majority of larger specimens are . When fully mature the species has no natural predators due to i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Astacopsis Gouldi
''Astacopsis'' is a genus of crayfish endemic to the island of Tasmania. There are three extant species, '' Astacopsis gouldi'', '' Astacopsis franklinii'', and '' Astacopsis tricornis''. All are threatened by illegal harvesting, and ''A. gouldi'' is protected by law. ''A. franklinii'' is found in the eastern half of the island, with ''A. tricornis'' taking its place in the west. ''A. gouldi'' is found only in rivers draining into the Bass Strait, except for the Tamar River. The three species were named by naturalist Ellen Clark in 1936. Prior to Clark's revision, all three species were collectively known as ''Astacopsis franklinii''. The most famous depiction of a crayfish of the genus ''Astacopsis'' is in the "Sketchbook of fishes" by convict artist William Buelow Gould, painted at the Macquarie Harbour Macquarie Harbour is a shallow fjord in the West Coast region of Tasmania, Australia. It is approximately , and has an average depth of , with deeper places up to . It is n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Astacopsis Franklinii
''Astacopsis'' is a genus of crayfish endemic to the island of Tasmania. There are three extant species, ''Astacopsis gouldi'', '' Astacopsis franklinii'', and '' Astacopsis tricornis''. All are threatened by illegal harvesting, and ''A. gouldi'' is protected by law. ''A. franklinii'' is found in the eastern half of the island, with ''A. tricornis'' taking its place in the west. ''A. gouldi'' is found only in rivers draining into the Bass Strait, except for the Tamar River. The three species were named by naturalist Ellen Clark in 1936. Prior to Clark's revision, all three species were collectively known as ''Astacopsis franklinii''. The most famous depiction of a crayfish of the genus ''Astacopsis'' is in the "Sketchbook of fishes" by convict artist William Buelow Gould, painted at the Macquarie Harbour Macquarie Harbour is a shallow fjord in the West Coast region of Tasmania, Australia. It is approximately , and has an average depth of , with deeper places up to . It is na ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Astacopsis Tricornis
''Astacopsis'' is a genus of crayfish endemic to the island of Tasmania. There are three extant species, ''Astacopsis gouldi'', ''Astacopsis franklinii'', and '' Astacopsis tricornis''. All are threatened by illegal harvesting, and ''A. gouldi'' is protected by law. ''A. franklinii'' is found in the eastern half of the island, with ''A. tricornis'' taking its place in the west. ''A. gouldi'' is found only in rivers draining into the Bass Strait, except for the Tamar River. The three species were named by naturalist Ellen Clark in 1936. Prior to Clark's revision, all three species were collectively known as ''Astacopsis franklinii''. The most famous depiction of a crayfish of the genus ''Astacopsis'' is in the "Sketchbook of fishes" by convict artist William Buelow Gould, painted at the Macquarie Harbour Macquarie Harbour is a shallow fjord in the West Coast region of Tasmania, Australia. It is approximately , and has an average depth of , with deeper places up to . It is nav ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crayfish
Crayfish are freshwater crustaceans belonging to the clade Astacidea, which also contains lobsters. In some locations, they are also known as crawfish, craydids, crawdaddies, crawdads, freshwater lobsters, mountain lobsters, rock lobsters, mudbugs, baybugs or yabbies. 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 fresh water is running, 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 term "crayfish" is applied to saltwater species in some countries. Terminology The name "crayfish" comes from the Old French word ' ( Modern French '). The word has been modified to "crayfish" by association with "fish" (folk etymology). The largely Amer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Charles Gould (geologist)
Charles Gould (4 June 1834 – 15 April 1893) was the first Geological Surveyor of Tasmania 1859–69. Career He was born in England He conducted three expeditions into Western Tasmania in the 1860s. He named many of the mountains on the West Coast Range. He also worked as a consultant geologist and land surveyor in Tasmania, the Bass Strait Islands and in New South Wales. He left Australia in late 1873 and died 20 years later, in Montevideo, Uruguay. His father was the ornithologist John Gould and his mother was the natural history illustrator Elizabeth Gould (née Coxen). Charles Gould was a member of the Royal Society of Tasmania and an amateur naturalist as well as geologist. He published observations of the distribution, diet and habits of the Tasmanian giant freshwater crayfish in 1870. The species was named ''Astacopsis gouldi'' in honour of him by Australian freshwater crayfish ecologisEllen Clarkin 1936. Cryptozoology Gould was the author of the book ''Mythical Monste ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parastacidae
The Parastacidae are the family of freshwater crayfish found in the Southern Hemisphere. The family is a classic Gondwana-distributed taxon, with extant members in South America, Madagascar, Australia, New Zealand, and New Guinea, and extinct taxa also in Antarctica. Distribution Three genera are found in Chile, ''Virilastacus'', ''Samastacus'' and '' Parastacus'', the last of which also occurs disjunctly in southern Brazil and Uruguay. There are no crayfish native to continental Africa, but seven species on Madagascar, all of the genus ''Astacoides''. Australasia is particularly rich in crayfish. The small genus '' Paranephrops'' is endemic to New Zealand. The genera '' Astacopsis'' is endemic to Tasmania, while a further two are found on either side of the Bass Strait – '' Geocharax'' and '' Engaeus''. The greatest diversity, however, is found on the Australian mainland. Three genera are endemic and have restricted distributions ('' Engaewa'', '' Gramastacus'' and '' Ten ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tasmania
) , nickname = , image_map = Tasmania in Australia.svg , map_caption = Location of Tasmania in AustraliaCoordinates: , subdivision_type = Country , subdivision_name = Australia , established_title = Before federation , established_date = Colony of Tasmania , established_title2 = Federation of Australia, Federation , established_date2 = 1 January 1901 , named_for = Abel Tasman , demonym = , capital = Hobart , largest_city = capital , coordinates = , admin_center = Local government areas of Tasmania, 29 local government areas , admin_center_type = Administration , leader_title1 = Monarchy of Australia, Monarch , leader_name1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bass Strait
Bass Strait () is a strait separating the island states and territories of Australia, state of Tasmania from the Australian mainland (more specifically the coast of Victoria (Australia), Victoria, with the exception of the land border across Boundary Islet). The strait provides the most direct waterway between the Great Australian Bight and the Tasman Sea, and is also the only maritime route into the economically prominent Port Phillip Bay. Formed 8,000 years ago by rising sea levels at the end of the last glacial period, the strait was named after English explorer and physician George Bass (1771-1803) by History of Australia (1788–1850), European colonists. Extent The International Hydrographic Organization defines the limits of Bass Strait as follows: :''On the west.'' The eastern limit of the Great Australian Bight [being a line from Cape Otway, Australia, to King Island (Tasmania), King Island and thence to Cape Grim, the northwest extreme of Tasmania]. :''On the east.' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tamar River
The Tamar River, officially kanamaluka / River Tamar, is a estuary located in northern Tasmania, Australia. Despite being called a river, the waterway is a brackish and tidal estuary over its entire length. Location and features Formed by the confluence of the North Esk and South Esk rivers at , kanamaluka / River Tamar flows generally north towards its mouth at Low Head, north of the settlement George Town and into the Bass Strait via Port Dalrymple. kanamaluka / River Tamar has several minor tributaries including the Supply River. Low Head Lighthouse is located at the tip of a peninsula, on the east side of the mouth of the river. The only full crossing of the river is the Batman Bridge in the relatively remote area of Sidmouth, around halfway up the river. The Tamar river is complicated in that it silts up frequently, a contributing factor to its slow decline in use. Over time dredging operations have been required. A scheme enacted between the 1920s and 1970s pla ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
William Buelow Gould
William Buelow Gould (1801 – 11 December 1853) was an English and Van Diemonian (Tasmanian) painter. He was transported to Australia as a convict in 1827, after which he would become one of the most important early artists in the colony, despite never really separating himself from his life of crime. Gould's life in Van Diemen's Land was the subject of the award-winning historical fiction novel ''Gould's Book of Fish'' (2001), written by Richard Flanagan, centring on Gould's production of the '' Sketchbook of fishes''. In April 2011 Gould's original ''Sketchbook of fishes'' was recognised as a document of world significance by UNESCO. Early life Gould was born as William Holland in Liverpool, Merseyside, England. While little is known of his early life, it is thought that he received artistic training under Irish painter William Mulready, R.A., in London, and German lithographer Rudolph Ackermann in The Strand, and that he worked in Spode's factory in Stoke-on-Trent, Sta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Macquarie Harbour Penal Station
The Macquarie Harbour Penal Station, a former British colonial penal settlement, established on Sarah Island, Macquarie Harbour, in the former colony of Van Diemen's Land, now Tasmania, operated between 1822 and 1833. The settlement housed male convicts, with a small number of women housed on a nearby island. During its 11 years of operation, the penal colony achieved a reputation as one of the harshest penal settlements in the Australian colonies. The formal penal station is located on the Sarah Island that now operates as an historic site under the direction of the Tasmania Parks and Wildlife Service. Rationale for establishment The penal station was established as a place of banishment within the Australian colonies. It took the worst convicts, those who had reoffended and those who had escaped from other settlements. The isolated land was ideally suited for its purpose. It was separated from the mainland by the wide expanse of river, surrounded by a mountainous wilder ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
