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Thymichthys Politus
The red handfish (''Thymichthys politus'') is a species of marine ray-finned fishes belonging to the family Brachionichthyidae, the handfishes. Like all members of the handfish family, this fish is endemic to Australia. The IUCN classify the red handfish as critically endangered. Taxonomy The red handfish was first formally described as ''Cheironectes politus'' in 1844 by Scottish naval surgeon, Arctic explorer, and naturalist John Richardson, with ittype localitygiven as the Acteon Islands off Tasmania. When Australian zoologists Peter R. Last and Daniel C. Gledhill created the new genus '' Thymichthys'', they designated ''Cheironectes politus'' as the type species. This genus is classified within the family Brachionichthyidae, which the 5th edition of ''Fishes of the World'' classifies the family Brachionichthyidae within the suborder Antennarioidei within the order Lophiiformes, the anglerfishes. Etymology The red handfish has the genus name ''Thymichthys'', from the G ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Richardson (naturalist)
Sir John Richardson Royal Society of London, FRS FRSE (5 November 1787 – 5 June 1865) was a Scotland, Scottish naval surgeon, natural history, naturalist and Arctic explorer. Life Richardson was born at Nith Place in Dumfries the son of Gabriel Richardson, Provost of Dumfries, and his wife, Anne Mundell. He was educated at Dumfries Grammar School. He was then apprenticed to his maternal uncle, Dr James Mundell, a surgeon in Dumfries. Richardson studied medicine at Edinburgh University, and became a surgeon in the navy in 1807. He traveled with John Franklin in search of the Northwest Passage on the Coppermine Expedition of 1819–1822. Richardson wrote the sections on geology, botany and ichthyology for the official account of the expedition. Franklin and Richardson Mackenzie River expedition, returned to Canada in 1825 and went overland by fur trade routes to the mouth of the Mackenzie River. Franklin was to go as far west as possible and Richardson was to go east to the mo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fishes Of The World
''Fishes of the World'' is a standard reference for the systematics of fishes. It was first written in 1976 by the American ichthyologist Joseph S. Nelson (1937–2011). Now in its fifth edition (2016), the work is a comprehensive overview of the diversity and classification of the 30,000-plus fish species known to science. The book begins with a general overview of ichthyology, although it is not self-contained. After a short section on Chordata and non-fish taxa, the work lists all known fish families in a systematic fashion. Each family is given at least one paragraph, and usually a body outline drawing; large families have subfamilies and tribes described as well. Notable genera and species are mentioned, though the book does generally not deal with the species-level diversity. The complexities of the higher taxa are described succinctly, with many references for difficult points. The book does not contain any color illustrations. The fourth edition was the first to inco ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Forestier Peninsula
The Forestier Peninsula is a peninsula located in south-east Tasmania, Australia, approximately by the Arthur Highway, south-east of Hobart. The peninsula is connected to mainland Tasmania at East Bay Neck, near the town of at its northern end. At Eaglehawk Neck, the southern end of the Forestier Peninsula is connected to the Tasman Peninsula. Location and features The peninsula measures about long by wide, and is a part of the Tasman municipality. The east coast of the peninsula, facing the Tasman Sea is contained within the Tasman National Park. Bay whaling activities were conducted in the coves of the peninsula in the 1830s and 1840s. Located on Forestier Peninsula facing Norfolk Bay, Flinders Bay, north west of Eaglehawk Neck, was once the site of a convict Probation Station which was established in 1841. The 200 convicts were involved in timber getting and land clearing. The station, beside the mouth of Flinders Creek, was short lived and closed within several ye ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
D'Entrecasteaux Channel
The D'Entrecasteaux Channel is a body of water located between Bruny Island and the south-east of the mainland of Tasmania, Australia. The channel is the mouth for the estuaries of the Derwent and the Huon Rivers and empties into the Tasman Sea of the South Pacific Ocean. It was sighted by Abel Tasman in 1642 and surveyed in 1792 by Bruni d'Entrecasteaux. Towns on the D'Entrecasteaux Channel include Snug, Margate, Kettering, Woodbridge, Flowerpot, Middleton and Gordon. History The area has always been of great significance to the Nuenonne band of the South East tribe of Tasmanian Indigenous peoples. According to '' The Mercury'' newspaper, the channel "..... was discovered on 20 April 1792 by the celebrated French "Vice-Admiral Bruni D'Entrecasteaux, who, in the ships ''Recherche'' and ''Esperance'', was searching for ill-fated ''La Perouse''. Visiting Van Diemen's Land for the first time, he was attempting to find an anchorage in Adventure Bay, when, being himself ill i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Actaeon Island
The Actaeon Island, part of the Actaeon Island Group, is a dolerite island and game reserve located at the southern entrance to the D'Entrecasteaux Channel between Bruny Island and the mainland, that lies close to the south-eastern coast of Tasmania, Australia. The island is named for the ship , which wrecked there in 1822. There is a navigation beacon on the highest point, .Brothers, Nigel; Pemberton, David; Pryor, Helen; & Halley, Vanessa. (2001). ''Tasmania’s Offshore Islands: seabirds and other natural features''. Tasmanian Museum and Art Gallery: Hobart. Actaeon Island Group The Actaeon Island Group consists of: * Actaeon Island * Blanche Rock * Courts Island * Southport Island * Sterile Island * The Friars * The Images Fauna Recorded breeding seabird and wader species are the little penguin, short-tailed shearwater The short-tailed shearwater or slender-billed shearwater (''Ardenna tenuirostris''; formerly ''Puffinus tenuirostris''), also called yoll ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fortescue Bay
Fortescue Bay or Baje Dolomien is a bay in southeast Tasmania, Australia. It is located east of Port Arthur, Tasmania, and makes up part of Tasman National Park. Within the bay are two smaller nested bays, Canoe Bay and Bivouac Bay. History Timber mill During the early 1900s, a timber mill was started at Fortescue Bay by G. Albury and Turner Brothers. At the beginning of the 1920s, the Gathercole Brothers company began advertising for men to work at their mill. It is possible that the Gathercole Brothers carried on operation of the mill owned by G. Albury and Turner Brothers, as they owned several mills around Port Arthur. Fish works Until the early 1970s, Canoe Bay played host to a fish works. Shipwreck On 1 July 1953, a dredge named for William Pitt was towed from Hobart to Fortescue Bay and scuttled in the mouth of Canoe Bay at the request of the Minister for Agricultural and Sea Fisheries. The dredge was scuttled to act as a breakwater for the many fishing vessels using ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Port Arthur, Tasmania
Port Arthur is a town and former convict settlement on the Tasman Peninsula, in Tasmania, Australia. It is located approximately southeast of the state capital, Hobart. The site forms part of the Australian Convict Sites, a World Heritage property consisting of 11 remnant penal sites originally built within the British Empire during the 18th and 19th centuries on fertile Australian coastal strips. Collectively, these sites, including Port Arthur, are described by UNESCO as "... the best surviving examples of large-scale convict transportation and the colonial expansion of European powers through the presence and labour of convicts." In 1996, the town was the scene of the Port Arthur massacre, the deadliest instance of mass murder in post-colonial Australian history. History Port Arthur was named after George Arthur, the lieutenant governor of Van Diemen's Land. The settlement started as a timber station in 1830, but it is best known for being a penal colony. Penal colo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fish Measurement
Fish measurement is the measuring of individual fish and various parts of their anatomies, for data used in many areas of ichthyology, including taxonomy and fishery biology. Overall length Standard length (SL) is the length of a fish measured from the tip of the snout to the posterior end of the last vertebra or to the posterior end of the midlateral portion of the hypural plate. This measurement excludes the length of the caudal (tail) fin. Total length (TL) is the length of a fish measured from the tip of the snout to the tip of the longer lobe of the caudal fin, usually measured with the lobes compressed along the midline. It is a straight-line measure, not measured over the curve of the body. Standard length measurements are used with Teleostei (most bony fish), while total length measurements are used with Myxini (hagfish), Petromyzontiformes ( lampreys) and usually Elasmobranchii (shark Sharks are a group of elasmobranch cartilaginous fish characterized by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polymorphism (biology)
In biology, polymorphism is the occurrence of two or more clearly different morphs or forms, also referred to as alternative '' phenotypes'', in the population of a species. To be classified as such, morphs must occupy the same habitat at the same time and belong to a panmictic population (one with random mating). Ford E.B. 1965. ''Genetic polymorphism''. Faber & Faber, London. Put simply, polymorphism is when there are two or more possibilities of a trait on a gene. For example, there is more than one possible trait in terms of a jaguar's skin colouring; they can be light morph or dark morph. Due to having more than one possible variation for this gene, it is termed 'polymorphism'. However, if the jaguar has only one possible trait for that gene, it would be termed "monomorphic". For example, if there was only one possible skin colour that a jaguar could have, it would be termed monomorphic. The term polyphenism can be used to clarify that the different forms arise from the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Specific Name (zoology)
In zoological nomenclature, the specific name (also specific epithet, species epithet, or epitheton) is the second part (the second name) within the scientific name of a species (a binomen). The first part of the name of a species is the name of the genus or the generic name. The rules and regulations governing the giving of a new species name are explained in the article species description. For example, the scientific name for humans is ''Homo sapiens'', which is the species name, consisting of two names: ''Homo'' is the " generic name" (the name of the genus) and ''sapiens'' is the "specific name". Etymology Historically, ''specific name'' referred to the combination of what are now called the generic and specific names. Carl Linnaeus, who formalized binomial nomenclature, made explicit distinctions between specific, generic, and trivial names. The generic name was that of the genus, the first in the binomial, the trivial name was the second name in the binomial, and the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Wiley & Sons
John Wiley & Sons, Inc., commonly known as Wiley (), is an American Multinational corporation, multinational Publishing, publishing company that focuses on academic publishing and instructional materials. The company was founded in 1807 and produces books, Academic journal, journals, and encyclopedias, in print and electronically, as well as online products and services, training materials, and educational materials for undergraduate, graduate, and continuing education students. History The company was established in 1807 when Charles Wiley opened a print shop in Manhattan. The company was the publisher of 19th century American literary figures like James Fenimore Cooper, Washington Irving, Herman Melville, and Edgar Allan Poe, as well as of legal, religious, and other non-fiction titles. The firm took its current name in 1865. Wiley later shifted its focus to scientific, Technology, technical, and engineering subject areas, abandoning its literary interests. Wiley's son Joh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anglerfishes
The anglerfish are ray-finned fish in the order Lophiiformes (). Both the order's common and scientific name comes from the characteristic mode of predation, in which a modified dorsal fin ray acts as a lure for prey (akin to a human angler, and likened to a crest or "'' lophos''"). The modified fin ray, with the very tip being the esca and the length of the structure the illicium, is adapted to attract specific prey items across the families of anglerfish by using different luring methods. Anglerfish occur worldwide. The majority are bottom-dwellers, being demersal fish, while the aberrant deep-sea anglerfish are pelagic, (mostly) living high in the water column. Some live in the deep sea (such as the deep-sea anglerfish and sea toads), while others live in shallower waters, such as the frogfishes and some batfishes. Anglerfish are notable for their sexual dimorphism, which is sometimes extremely pronounced; the males may be several orders of magnitude smaller in mass ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
