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Rasboroides
''Rasboroides'' is a genus of small cyprinid fishes endemism, endemic to Sri Lanka. They are found in small, slow-flowing and shaded streams in the southwestern part of the island. They are essentially restricted to lowlands, although one Introduced species, introduced population occurs at an altitude of .Sudasinghe, H., J. Herath, R. Pethiyagoda and M. Meegaskumbura. (2018). Undocumented Translocations Spawn Taxonomic Inflation in Sri Lankan Fire Rasboras (Actinopterygii, Cyprinidae). PeerJ. 6:e6084. They are calm, social and attractively colored fish that sometimes are kept in aquariums. Species Historically, there was only a single recognized species in this genus, ''R. vaterifloris'', but in a review in 2013 four species were recognized, and this is followed by FishBase. A comprehensive review in 2018 disputed this and only recognized two species, ''R. pallidus'' and ''R. vaterifloris'' (the other two considered junior synonyms). * ''Rasboroides nigromarginatus'' (Meinken ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rasboroides Pallidus
''Rasboroides pallidus'' is a species of freshwater cyprinid fish endemic to southwestern Sri Lanka. It is only known from shallow, slow-flowing streams in the basins of the Kalu River, Bentara River, Gin River, Polathu-Modera River and Nilwala River. It has been Introduced species, introduced to the Mahaweli River, Mahaweli and Walawe River basins, and is overall less Threatened species, threatened than the related ''Rasboroides vaterifloris, R. vaterifloris''. A comprehensive Taxonomy (biology), taxonomic review in 2018 based on morphometry, meristics and mtDNA disputed the validity of ''Rasboroides rohani, R. rohani'', showing that it is a junior synonym of ''R. pallidus''; this synonymy is followed by the Catalog of Fishes but not the FishBase. It can grow to Fish measurement, standard length. References Rasboroides Freshwater fish of Sri Lanka Endemic fauna of Sri Lanka Taxa named by Paulus Edward Pieris Deraniyagala Fish described in 1930 {{Cyprinidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rasboroides
''Rasboroides'' is a genus of small cyprinid fishes endemism, endemic to Sri Lanka. They are found in small, slow-flowing and shaded streams in the southwestern part of the island. They are essentially restricted to lowlands, although one Introduced species, introduced population occurs at an altitude of .Sudasinghe, H., J. Herath, R. Pethiyagoda and M. Meegaskumbura. (2018). Undocumented Translocations Spawn Taxonomic Inflation in Sri Lankan Fire Rasboras (Actinopterygii, Cyprinidae). PeerJ. 6:e6084. They are calm, social and attractively colored fish that sometimes are kept in aquariums. Species Historically, there was only a single recognized species in this genus, ''R. vaterifloris'', but in a review in 2013 four species were recognized, and this is followed by FishBase. A comprehensive review in 2018 disputed this and only recognized two species, ''R. pallidus'' and ''R. vaterifloris'' (the other two considered junior synonyms). * ''Rasboroides nigromarginatus'' (Meinken ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rasboroides Vaterifloris
''Rasboroides vaterifloris'', known as the pearly rasbora, vateria flower rasbora or fire rasbora, is a species of freshwater cyprinid fish endemic to Sri Lanka. It can be found in the shallow waters of shaded, slow-flowing clear streams with a silt substrate. It also prefers areas with plentiful leaf debris. Its diet consists of detritus and terrestrial insects. This species can reach a length of TL. It can also be found in the aquarium trade. ''R. vaterifloris'' was formerly believed to be the only species in the genus and found in several river basins. A study in 2013 found that it was restricted to the Kalu River basin, with related species inhabiting other basins.Batuwita, Sudesh; de Silva, M.; Edirisinghe, U. (November 2013). "A review of the danionine genera Rasboroides and Horadandia (Pisces: Cyprinidae), with description of a new species from Sri Lanka". Ichthyological Exploration of Freshwaters. 24 (2): 121–140. However, a comprehensive taxonomic review in 201 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rasboroides Nigromarginatus
''Rasboroides nigromarginatus'' is a species of freshwater cyprinid fish endemic to Sri Lanka where only known from small, shaded streams in the Atweltota region of the Kalu River basin.Batuwita, Sudesh; de Silva, M.; Edirisinghe, U. (November 2013). "A review of the danionine genera Rasboroides and Horadandia (Pisces: Cyprinidae), with description of a new species from Sri Lanka". Ichthyological Exploration of Freshwaters. 24 (2): 121–140. It can also be found in the aquarium trade. Long considered a synonym of '' R. vaterifloris'', ''R. nigromarginatus'' was revalidated as a species in 2013. A comprehensive taxonomic review in 2018 based on morphometry, meristics and mtDNA Mitochondrial DNA (mtDNA or mDNA) is the DNA located in mitochondria, cellular organelles within eukaryotic cells that convert chemical energy from food into a form that cells can use, such as adenosine triphosphate (ATP). Mitochondrial DNA ... disputed this, returning it to being a synonym of ''R. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rasboroides Rohani
''Rasboroides rohani'', is a species of freshwater cyprinid fish endemic to Sri Lanka where only known from shallow, slow-flowing, shady streams near Suriyakanda in the Walawe River basin. It was scientifically described in 2013, but a comprehensive review in 2018 based on morphometry, meristics and mtDNA disputed its validity, showing that it is a junior synonym of '' R. pallidus''.Sudasinghe, H., J. Herath, R. Pethiyagoda and M. Meegaskumbura. (2018). Undocumented Translocations Spawn Taxonomic Inflation in Sri Lankan Fire Rasboras (Actinopterygii, Cyprinidae). PeerJ. 6:e6084. The occurrence of ''R. pallidus'' in the Walawe River basin is not natural, but the result of translocations In genetics, chromosome translocation is a phenomenon that results in unusual rearrangement of chromosomes. This includes balanced and unbalanced translocation, with two main types: reciprocal-, and Robertsonian translocation. Reciprocal translo .... References Rasboroides Cyprinid fish ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cyprinid
Cyprinidae is a family of freshwater fish commonly called the carp or minnow family. It includes the carps, the true minnows, and relatives like the barbs and barbels. Cyprinidae is the largest and most diverse fish family and the largest vertebrate animal family in general with about 3,000 species, of which only 1,270 remain extant, divided into about 370 genera. Cyprinids range from about 12 mm in size to the giant barb (''Catlocarpio siamensis''). By genus and species count, the family makes up more than two-thirds of the ostariophysian order Cypriniformes. The family name is derived from the Greek word ( 'carp'). Biology and ecology Cyprinids are stomachless fish with toothless jaws. Even so, food can be effectively chewed by the gill rakers of the specialized last gill bow. These pharyngeal teeth allow the fish to make chewing motions against a chewing plate formed by a bony process of the skull. The pharyngeal teeth are unique to each species and are used by scient ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endemism
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] |
Sri Lanka
Sri Lanka (, ; si, ශ්රී ලංකා, Śrī Laṅkā, translit-std=ISO (); ta, இலங்கை, Ilaṅkai, translit-std=ISO ()), formerly known as Ceylon and officially the Democratic Socialist Republic of Sri Lanka, is an island country in South Asia. It lies in the Indian Ocean, southwest of the Bay of Bengal, and southeast of the Arabian Sea; it is separated from the Indian subcontinent by the Gulf of Mannar and the Palk Strait. Sri Lanka shares a maritime border with India and Maldives. Sri Jayawardenepura Kotte is its legislative capital, and Colombo is its largest city and financial centre. Sri Lanka has a population of around 22 million (2020) and is a multinational state, home to diverse cultures, languages, and ethnicities. The Sinhalese are the majority of the nation's population. The Tamils, who are a large minority group, have also played an influential role in the island's history. Other long established groups include the Moors, the Burghers ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Introduced Species
An introduced species, alien species, exotic species, adventive species, immigrant species, foreign species, non-indigenous species, or non-native species is a species living outside its native distributional range, but which has arrived there by human activity, directly or indirectly, and either deliberately or accidentally. Non-native species can have various effects on the local ecosystem. Introduced species that become established and spread beyond the place of introduction are considered naturalized. The process of human-caused introduction is distinguished from biological colonization, in which species spread to new areas through "natural" (non-human) means such as storms and rafting. The Latin expression neobiota captures the characteristic that these species are ''new'' biota to their environment in terms of established biological network (e.g. food web) relationships. Neobiota can further be divided into neozoa (also: neozoons, sing. neozoon, i.e. animals) and neophyt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
FishBase
FishBase is a global species database of fish species (specifically finfish). It is the largest and most extensively accessed online database on adult finfish on the web.Marine Fellow: Rainer Froese ''Pew Environment Group''. Over time it has "evolved into a dynamic and versatile ecological tool" that is widely cited in scholarly publications. FishBase provides comprehensive species data, including information on , geographical distribution, and |
Martin Ralph Brittan
Martin may refer to: Places * Martin City (other) * Martin County (other) * Martin Township (other) Antarctica * Martin Peninsula, Marie Byrd Land * Port Martin, Adelie Land * Point Martin, South Orkney Islands Australia * Martin, Western Australia * Martin Place, Sydney Caribbean * Martin, Saint-Jean-du-Sud, Haiti, a village in the Sud Department of Haiti Europe * Martin, Croatia, a village in Slavonia, Croatia * Martin, Slovakia, a city * Martín del Río, Aragón, Spain * Martin (Val Poschiavo), Switzerland England * Martin, Hampshire * Martin, Kent * Martin, East Lindsey, Lincolnshire, hamlet and former parish in East Lindsey district * Martin, North Kesteven, village and parish in Lincolnshire in North Kesteven district * Martin Hussingtree, Worcestershire * Martin Mere, a lake in Lancashire ** WWT Martin Mere, a wetland nature reserve that includes the lake and surrounding areas * Martin Mill, Kent North America Canada * Rural Municipality of M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paules Edward Pieris Deraniyagala
Paulus Edward Pieris Deraniyagala (1900–1976) was a Sri Lankan paleontologist, zoologist, and artist. Early life and education He was born in Colombo, the son of Paul Edward Pieris and Lady Hilda Obeyesekere Pieris. He had two younger brothers, Justin Pieris Deraniyagala, Ralph St. Louis Pieris Deraniyagala, and a sister, Miriam Pieris Deraniyagala. He was educated at S. Thomas' College, Mount Lavinia and Trinity College, Cambridge, where he gained a BA in 1922 and an Oxbridge MA in 1923. He entered Harvard University for a year, where he was awarded a Master of Arts in 1924. Career He specialised in fauna and human fossils of the Indian subcontinent. From 1939 to 1963, he was the director of the National Museum of Ceylon, and from 1961 to 1964, he was also the dean of the Faculty of Arts at the Vidyodaya University. He described several fossils and proposed scientific names for species and subspecies, with several now identified as dubious, including: *Sri Lankan rhinoceros ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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