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Uegitglanis
''Uegitglanis zammaranoi'' is the only species of catfish ( order Siluriformes) in the genus ''Uegitglanis'' of the family Clariidae. It is endemic to Somalia, where it only occurs in caves near the Jubba and the Shebelle Rivers. This species grows to about 10.1 cm (4.0 in) in total length. ''U. zammaranoi'' is hypothesized to be the sister group to '' Heteropneustes'' and the remaining clariids. The problematic relationship of this species to the rest of the family is due to the lack of a labyrinth organ that characterizes the family. Two other cavefish species are in Somalia: the cyprinids ''Barbopsis devecchi'' and ''Phreatichthys andruzzii ''Phreatichthys andruzzii'', a species of cyprinid fish, is the only species of the genus ''Phreatichthys'', and is endemic to Somalia. This cave-adapted fish is whitish (not pigmented) and blind. It is considered to have evolved in the cave en ...''.Romero, A., editor (2001). ''The Biology of Hypogean Fishes.'' Developmen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Uegitglanis
''Uegitglanis zammaranoi'' is the only species of catfish ( order Siluriformes) in the genus ''Uegitglanis'' of the family Clariidae. It is endemic to Somalia, where it only occurs in caves near the Jubba and the Shebelle Rivers. This species grows to about 10.1 cm (4.0 in) in total length. ''U. zammaranoi'' is hypothesized to be the sister group to '' Heteropneustes'' and the remaining clariids. The problematic relationship of this species to the rest of the family is due to the lack of a labyrinth organ that characterizes the family. Two other cavefish species are in Somalia: the cyprinids ''Barbopsis devecchi'' and ''Phreatichthys andruzzii ''Phreatichthys andruzzii'', a species of cyprinid fish, is the only species of the genus ''Phreatichthys'', and is endemic to Somalia. This cave-adapted fish is whitish (not pigmented) and blind. It is considered to have evolved in the cave en ...''.Romero, A., editor (2001). ''The Biology of Hypogean Fishes.'' Developmen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cave Fish
Cavefish or cave fish is a generic term for fresh and brackish water fish adapted to life in caves and other underground habitats. Related terms are subterranean fish, troglomorphic fish, troglobitic fish, stygobitic fish, phreatic fish and hypogean fish.Romero, Aldemaro, editor (2001). ''The Biology of Hypogean Fishes.'' Developments in Environmental Biology of Fishes. Helfman, G.S. (2007). ''Fish Conservation: A Guide to Understanding and Restoring Global Aquatic Biodiversity and Fishery Resources'', pp. 41–42. Island Press. There are more than 200 scientifically described species of obligate cavefish found on all continents, except Antarctica. Although widespread as a group, many cavefish species have very small ranges and are seriously threatened.Fenolio, D.B.; Zhao, Y.; Niemiller, M.L.; and Stout, J. (2013). ''In-situ observations of seven enigmatic cave loaches and one cave barbel from Guangxi, China, with notes on conservation status.'' Speleobiology Notes 5: 19-33.Proud ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phreatichthys Andruzzii
''Phreatichthys andruzzii'', a species of cyprinid fish, is the only species of the genus ''Phreatichthys'', and is endemic to Somalia. This cave-adapted fish is whitish (not pigmented) and blind. It is considered to have evolved in the cave environment for some two million years. Its name derives from the Greek words ''phreasatos'' for spring, and ''ichthys'' for fish. It grows to a maximum length of . This fish is the first animal discovered that does not adjust its biological clock with the light of the sun. It has an unusual internal clock, which measures the passage of time with an extremely long period (up to 47 hours). It is also completely blind to all light stimuli.Cavallari, N., Frigato, E., Vallone, D., Fröhlich, N., Lopez-Olmeda, J. F., Foà, A., Berti R., Sánchez-Vázquez, F.J., Bertolucci, C., Foulkes, N. S. (2011). A Blind Circadian Clock in Cavefish Reveals that Opsins Mediate Peripheral Clock Photoreception. PLoS Biology, 9(9), e1001142. http://doi.org/10.137 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Barbopsis Devecchi
The Somalian blind barb (''Barbopsis devecchi'') is a ray-finned fish species in the family Cyprinidae. It is the only member of the genus ''Barbopsis''. This troglobitic fish is found only in Somalia Somalia, , Osmanya script: 𐒈𐒝𐒑𐒛𐒐𐒘𐒕𐒖; ar, الصومال, aṣ-Ṣūmāl officially the Federal Republic of SomaliaThe ''Federal Republic of Somalia'' is the country's name per Article 1 of thProvisional Constituti .... There are two other cavefish species in Somalia: the cyprinid '' Phreatichthys andruzzii'' and the catfish '' Uegitglanis zammaranoi''.Romero, A., editor (2001). ''The Biology of Hypogean Fishes.'' Developments in Environmental Biology of Fishes. References Barbs (fish) Cave fish Cyprinid fish of Africa Fish of Somalia Endemic fauna of Somalia Fish described in 1926 Taxonomy articles created by Polbot Taxobox binomials not recognized by IUCN {{Cyprininae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cavefish
Cavefish or cave fish is a generic term for fresh and brackish water fish adapted to life in caves and other underground habitats. Related terms are subterranean fish, troglomorphic fish, troglobitic fish, stygobitic fish, phreatic fish and hypogean fish.Romero, Aldemaro, editor (2001). ''The Biology of Hypogean Fishes.'' Developments in Environmental Biology of Fishes. Helfman, G.S. (2007). ''Fish Conservation: A Guide to Understanding and Restoring Global Aquatic Biodiversity and Fishery Resources'', pp. 41–42. Island Press. There are more than 200 scientifically described species of obligate cavefish found on all continents, except Antarctica. Although widespread as a group, many cavefish species have very small ranges and are seriously threatened.Fenolio, D.B.; Zhao, Y.; Niemiller, M.L.; and Stout, J. (2013). ''In-situ observations of seven enigmatic cave loaches and one cave barbel from Guangxi, China, with notes on conservation status.'' Speleobiology Notes 5: 19-33.Proud ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Luisa Gianferrari
Luisa (Italian and Spanish), Luísa (Portuguese) or Louise (French) is a feminine given name; it is the feminine form of the given name Louis (Luis), the French form of the Frankish Chlodowig (German Ludwig), from the Germanic elements ''hlod'' "fame" and ''wig'' "combat". Variations include Luisinha, Luisella, Luisana, Luisetta, Luigia, Luisel. Its popularity derives from the cult of Saint Louise de Marillac of Paris, and from Giuseppe Verdi's opera ''Luisa Miller''. People with the given name Luisa *Luisa Accati (born 1942), Italian historian, anthropologist and feminist public intellectual *Luisa Cáceres de Arismendi (1799–1866), heroine of the Venezuelan War of Independence *Luisa Baldini, Anglo-Italian news reporter and presenter, presently working for BBC News *Luisa Bradshaw-White (born 1975), English actress *Luisa María Calderón (born 1965), Mexican politician *Luisa Capetillo (1879–1922), Corsican-Puerto Rican writer and anarchist *Luisa Casati (1881–1957 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fish Measurement
Fish measurement is the measuring of individual fish and various parts of their anatomies. These data are used in many areas of ichthyology, including taxonomy and fisheries 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. Simply put, 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 (sharks and rays), as well as some other fishes. Total length meas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endemic Fauna Of Somalia
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 s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fish Of Somalia
Fish are aquatic, craniate, gill-bearing animals that lack limbs with digits. Included in this definition are the living hagfish, lampreys, and cartilaginous and bony fish as well as various extinct related groups. Approximately 95% of living fish species are ray-finned fish, belonging to the class Actinopterygii, with around 99% of those being teleosts. The earliest organisms that can be classified as fish were soft-bodied chordates that first appeared during the Cambrian period. Although they lacked a true spine, they possessed notochords which allowed them to be more agile than their invertebrate counterparts. Fish would continue to evolve through the Paleozoic era, diversifying into a wide variety of forms. Many fish of the Paleozoic developed external armor that protected them from predators. The first fish with jaws appeared in the Silurian period, after which many (such as sharks) became formidable marine predators rather than just the prey of arthropods. Mos ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heteropneustes
''Heteropneustes'' is a genus of catfishes, the airsac catfishes, native to Asia. This genus is monotypic. Their bodies are elongated and compressed with greatly depressed heads. They have long air sacs that serve as lungs that extend from the gill chamber. Their dorsal fins are short and have no spine. Their pectoral fins have an associated venom gland, so the fish are considered dangerous.Nelson, J. S.: Fishes of the World, John Wiley & Sons, Inc., p , 2006 They are oviparity, oviparous; distinct pairing is possible. Species Five species in this genus are recognized: * ''Heteropneustes fossilis'' (Marcus Elieser Bloch, Bloch, 1794) (stinging catfish) * ''Heteropneustes kemratensis'' (Henry Weed Fowler, Fowler, 1937) * ''Heteropneustes nani'' Muhammad Shahadat Hossain, Hossain, Subrata Sarker, Sarker, Sharif M. Sharifuzzaman, Sharifuzzaman & Sayedur Rahman Chowdhury, Chowdhury, 2013Hossain, M.S., Sarker, S., Sharifuzzaman, S.M. & Chowdhury, S.R. (2013)New species of sting ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cladistics
Cladistics (; ) is an approach to biological classification in which organisms are categorized in groups (" clades") based on hypotheses of most recent common ancestry. The evidence for hypothesized relationships is typically shared derived characteristics ( synapomorphies'')'' that are not present in more distant groups and ancestors. However, from an empirical perspective, common ancestors are inferences based on a cladistic hypothesis of relationships of taxa whose character states can be observed. Theoretically, a last common ancestor and all its descendants constitute a (minimal) clade. Importantly, all descendants stay in their overarching ancestral clade. For example, if the terms ''worms'' or ''fishes'' were used within a ''strict'' cladistic framework, these terms would include humans. Many of these terms are normally used paraphyletically, outside of cladistics, e.g. as a 'grade', which are fruitless to precisely delineate, especially when including extinct species. R ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jubba River
The Jubba River or Juba River ( so, Wabiga Jubba) is a river in southern Somalia which flows through the autonomous region of Jubaland. It begins at the border with Ethiopia, where the Dawa and Ganale Dorya rivers meet, and flows directly south to the Somali Sea, where it empties at the ''Goobweyn'' juncture. The Jubba basin covers an area of . The Somali regional state of Jubaland, formerly called ''Trans-Juba'', is named after the river. History Ajuran Empire The Jubba River has a rich history of a once-booming sophisticated civilization and trade network conducted by the powerful Somalis that held sway over the Jubba river. During the Middle Ages Jubba river was under the Ajuran Empire of the Horn of Africa which utilized the Jubba River for its plantations and was the only hydraulic empire in Africa. A hydraulic empire that rose in the 13th century AD, Ajuran monopolized the water resources of the Jubba River and Shebelle. Through hydraulic engineering, it also construct ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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