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Northern Platyfish
The northern platyfish (''Xiphophorus gordoni'') is a small, endangered species of fish in the family Poeciliidae. It is endemic to the vicinity of Cuatro Ciénegas in the Mexican state of Coahuila. It is restricted to hot-spring heated ditches and marshes of the Laguna Santa Tecla. Its native water is shallow and vegetation-choked, with very stable temperatures that generally are around , although captive studies show the species also can live in slightly colder water. The species is primarily threatened by habitat loss due to construction of irrigation channels. Captive "safety" populations are kept at the ''Xiphophorus'' Genetic Stock Center, Texas State University, United States, and by XNP conservation project members, which include public aquariums, universities and private aquarists in several European countries and the United States. It was named in honor of Myron Gordon by Robert Rush Miller and W. L. Minckley who discovered it with Carl Hubbs on a 1961 expedition. Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Robert Rush Miller
Robert Rush Miller (April 23, 1916 – February 10, 2003) "was an important figure in American ichthyology and conservation from 1940 to the 1990s." He was born in Colorado Springs, earned his bachelor's degree at University of California, Berkeley in 1938, a master's degree at the University of Michigan in 1943, and a Ph.D. at the University of Michigan in 1944. He received tenure at the University of Michigan in 1954. Together with W. L. Minckley, he discovered a new species of platyfish, '' Xiphophorus gordoni'', that they named in honor of Dr Myron Gordon. He served as the ichthyological editor of ''Copeia'' from 1950 to 1955. Fish described * '' Chortiheros wesseli'' R. R. Miller 1996 - Cichlid * ''Cualac tessellatus'' R. R. Miller 1956 - (Checkered Pupfish) * '' Cyprinodon albivelis'' W. L. Minckley & R. R. Miller, 2002 (Whitefin pupfish) * '' Cyprinodon alvarezi'' R. R. Miller, 1976 (Potosi pupfish) * '' †Cyprinodon arcuatus'' W. L. Minckley & R. R. Miller, 2002 (Santa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Myron Gordon (biologist)
Myron Gordon (November 13, 1899 – March 12, 1959) was an American biologist and geneticist and became an expert on platy fish ''Xiphophorus'' while using them for his pioneering cancer research, starting in the late 1920s. Early papers were published while still a graduate student at Cornell University, but he is best known for his research at New York University and the New York Zoological Society (now Wildlife Conservation Society). Education Gordon received his education at Cornell University, achieving first his Bachelor of Science in 1925, going on to study for a Masters of Science in Genetics and Agriculture, 1925-1926, and finally achieving a Ph.D in Zoology, Limnology and Genetics in 1929. Activities through summer periods during education In summers, during school, Gordon worked a variety of jobs. He began in 1920 as a keeper at the New York Zoological Park (now the Bronx Zoo) and continued from 1921 to 1923 as a Game Keeper, first at the State of Maryland Game Farm, G ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taxa Named By Wendell L
In biology, a taxon (back-formation from ''taxonomy''; plural taxa) is a group of one or more populations of an organism or organisms seen by taxonomists to form a unit. Although neither is required, a taxon is usually known by a particular name and given a particular ranking, especially if and when it is accepted or becomes established. It is very common, however, for taxonomists to remain at odds over what belongs to a taxon and the criteria used for inclusion. If a taxon is given a formal scientific name, its use is then governed by one of the nomenclature codes specifying which scientific name is correct for a particular grouping. Initial attempts at classifying and ordering organisms (plants and animals) were set forth in Carl Linnaeus's system in ''Systema Naturae'', 10th edition (1758), as well as an unpublished work by Bernard and Antoine Laurent de Jussieu. The idea of a unit-based system of biological classification was first made widely available in 1805 in the intro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taxa Named By Robert Rush Miller
In biology, a taxon (back-formation from ''taxonomy''; plural taxa) is a group of one or more populations of an organism or organisms seen by taxonomists to form a unit. Although neither is required, a taxon is usually known by a particular name and given a particular ranking, especially if and when it is accepted or becomes established. It is very common, however, for taxonomists to remain at odds over what belongs to a taxon and the criteria used for inclusion. If a taxon is given a formal scientific name, its use is then governed by one of the nomenclature codes specifying which scientific name is correct for a particular grouping. Initial attempts at classifying and ordering organisms (plants and animals) were set forth in Carl Linnaeus's system in ''Systema Naturae'', 10th edition (1758), as well as an unpublished work by Bernard and Antoine Laurent de Jussieu. The idea of a unit-based system of biological classification was first made widely available in 1805 in the intro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endemic Fish Of Mexico
Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsewhere. For example, the Cape sugarbird is found exclusively in southwestern South Africa and is therefore said to be ''endemic'' to that particular part of the world. An endemic species can be also be referred to as an ''endemism'' or in scientific literature as an ''endemite''. For example '' Cytisus aeolicus'' is an endemite of the Italian flora. '' Adzharia renschi'' was once believed to be an endemite of the Caucasus, but it was later discovered to be a non-indigenous species from South America belonging to a different genus. The extreme opposite of an endemic species is one with a cosmopolitan distribution, having a global or widespread range. A rare alternative term for a species that is endemic is "precinctive", which applies to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Freshwater Fish Of Mexico
Fresh water or freshwater is any naturally occurring liquid or frozen water containing low concentrations of dissolved salts and other total dissolved solids. Although the term specifically excludes seawater and brackish water, it does include non- salty mineral-rich waters such as chalybeate springs. Fresh water may encompass frozen and meltwater in ice sheets, ice caps, glaciers, snowfields and icebergs, natural precipitations such as rainfall, snowfall, hail/ sleet and graupel, and surface runoffs that form inland bodies of water such as wetlands, ponds, lakes, rivers, streams, as well as groundwater contained in aquifers, subterranean rivers and lakes. Fresh water is the water resource that is of the most and immediate use to humans. Water is critical to the survival of all living organisms. Many organisms can thrive on salt water, but the great majority of higher plants and most insects, amphibians, reptiles, mammals and birds need fresh water to survive. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marbled Swordtail
The marbled swordtail (''Xiphophorus meyeri'') is a species of freshwater fish in the family Poeciliidae. It was endemic to the Rio Salado system (itself a part of the Rio Grande basin) in Coahuila, northeastern Mexico. It was restricted to springs, connected creeks and pools in waters with a pH slightly above neutral and temperatures of , with captive studies indicating that the optimum temperature is around . The marbled swordtail is considered extinct in the wild by the IUCN with the last wild record in 1997, meaning that it survives only in captivity. Captive populations are maintained at the ''Xiphophorus'' Genetic Stock Center, Texas State University, United States, and by XNP conservation project members, which include public aquariums, universities and private aquarists in several European countries and the United States. The marbled swordtail shares the title as northernmost naturally distributed ''Xiphophorus'' with the closely related Monterrey platyfish (''X. couc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monterrey Platyfish
The Monterrey platyfish (''Xiphophorus couchianus'') is a species of freshwater fish in family Poecilidae. A live-bearer, it was native to a very small section of the San Juan River system (itself part of the Rio Grande basin) in the vicinity of the city of Monterrey, Mexico. The specific name refers to the American soldier and naturalist Darius N. Couch (1822–1897) who collected the type on a self financed expedition to Mexico. Appearance The Monterrey platyfish is a dull-colored fish, appearing not unlike a female guppy. Another form, sometimes referred to as ''X. aff. couchianus'', was discovered in Apodaca, central Monterrey, in 1983. It has large black blotching, unlike the typical, unspotted form from the Huasteca Canyon. Whether the Apodaca form represents a separate species is presently unclear. Sexual dimorphism is moderate, the male Monterrey platyfish growing to a maximum overall length of and the female . Conservation IUCN lists the Monterrey platyfish as "e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Xiphophorus
''Xiphophorus'' is a genus of euryhaline and freshwater fishes in the family Poeciliidae of order Cyprinodontiformes, native to Mexico and northern Central America. The many ''Xiphophorus'' species are all known as platyfish (or platies) and swordtails. Platyfish formerly were classified in another genus, ''Platypoecilia'', which is now obsolete. The type species is ''X. hellerii,'' the green swordtail. Like most other new world Poeciliids, platies and swordtails are live-bearers that use internal fertilization and give birth to live young instead of laying eggs like the bulk of the world's fishes. The name ''Xiphophorus'' derives from the Greek words ξίφος (dagger) and φόρος (bearer), referring to the gonopodium on the males. All are relatively small fishes, which reach a maximum length of depending on the exact species involved. Distribution and conservation status The various ''Xiphophorus'' species range from the southern Rio Grande basin in Mexico, through ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carl Hubbs
Carl Leavitt Hubbs (October 19, 1894 – June 30, 1979) was an American ichthyologist. Biography Youth He was born in Williams, Arizona. He was the son of Charles Leavitt and Elizabeth (née Goss) Hubbs. His father had a wide variety of jobs (farmer, iron mine owner, newspaper owner). The family moved several times before settling in San Diego where he got his first taste of natural history. After his parents divorced in 1907, he lived with his mother, who opened a private school in Redondo Beach, California. His maternal grandmother Jane Goble Goss, one of the first female doctors, showed Hubbs how to harvest shellfish and other sea creatures. One of his teachers, impressed by Hubbs's abilities in science, recommended that he study chemistry at the University of Berkeley. The family moved once more to Los Angeles. In Los Angeles, George Bliss Culver, one of the many volunteers of David Starr Jordan, encouraged Hubbs to abandon his study of birds and instead to study fish, pa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Texas State University
Texas State University is a public research university in San Marcos, Texas. Since its establishment in 1899, the university has grown to the second largest university in the Greater Austin metropolitan area and the fifth largest university in the state of Texas. Texas State University reached a record enrollment of 38,808 students in the 2016 fall semester, continuing a trend of enrollment growth over several years. The university offers more than 200 degree options from its ten colleges. Texas State is classified among "R2: Doctoral Universities – High research activity" and an emerging research university by the State of Texas. The university is accredited by the Southern Association of Colleges and Schools (SACS). Faculty from the various colleges have consistently been granted Fulbright Scholarships resulting in Texas State's being recognized as one of the top producing universities of Fulbright Scholars. The 36th president of the United States, Lyndon B. Johnson, gra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wendell L
{{disambiguation, geo, hndis ...
Wendell may refer to: Places in the United States *Wendell, Idaho *Wendell, Massachusetts *Wendell, Minnesota *Wendell, North Carolina People *Wendell (name), a list of people with the name *Wendell (footballer, born 1947) (1947–2022), full name Wendell Lucena Ramalho, Brazilian football manager and former goalkeeper *Wendell (footballer, born 1989), full name Wendell Nogueira de Araújo, Brazilian football midfielder *Wendell (footballer, born 1993), full name Wendell Nascimento Borges, Brazilian football left-back See also *Wendel (other) Wendel may refer to: People * Wendel (name), including a list of people with the name * Wendel (footballer, born 1981), full name Wendel Santana Pereira Santos, Brazilian football defensive midfielder and wingback * Wendel (footballer, born 1982), ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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