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Mylesinus Paucisquamatus
''Mylesinus'' is a genus of serrasalmids from South America, where found in the eastern Amazon, Essequibo and Orinoco basins. They are rheophilic, typically found at rapids and mainly feed on Podostemaceae plants. Because of their habitat preference, they are threatened by the building of dams. They reach up to in standard length, and the adult males have a double-lobed anal fin and several filamentous extensions on the dorsal fin. Species There are three recognized species: * '' Mylesinus paraschomburgkii'' Jégu, dos Santos & E. J. G. Ferreira, 1989 * '' Mylesinus paucisquamatus'' Jégu & dos Santos, 1988 * ''Mylesinus schomburgkii'' Valenciennes Valenciennes (, also , , ; nl, label=also Dutch, Valencijn; pcd, Valincyinnes or ; la, Valentianae) is a commune in the Nord department, Hauts-de-France, France. It lies on the Scheldt () river. Although the city and region experienced a ..., 1850 References Serrasalmidae Taxa named by Achille Valencienn ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Animalia
Animals are multicellular, eukaryotic organisms in the biological kingdom Animalia. With few exceptions, animals consume organic material, breathe oxygen, are able to move, can reproduce sexually, and go through an ontogenetic stage in which their body consists of a hollow sphere of cells, the blastula, during embryonic development. Over 1.5 million living animal species have been described—of which around 1 million are insects—but it has been estimated there are over 7 million animal species in total. Animals range in length from to . They have complex interactions with each other and their environments, forming intricate food webs. The scientific study of animals is known as zoology. Most living animal species are in Bilateria, a clade whose members have a bilaterally symmetric body plan. The Bilateria include the protostomes, containing animals such as nematodes, arthropods, flatworms, annelids and molluscs, and the deuterostomes, containing the echinode ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Podostemaceae
Podostemaceae (riverweed family), a family in the order Malpighiales, comprise about 50 genera and species of more or less thalloid aquatic herbs. Distribution and habitat They are found mostly in tropical and subtropical areas worldwide. Many species are found in a very small geographic area, often even just a single river or waterfall. Because of their small range, many species are seriously threatened, especially from habitat loss (for example, due to dams flooding their habitat). Riverweeds adhere to hard surfaces (generally rock) in rapids and waterfalls of rivers. They are submerged when water levels are high, but during the dry season they live a terrestrial existence, flowering at this time. Their root anatomy is specialized for the purpose of clinging to rocks, and in fact details of the root structure are one of the ways of classifying riverweeds. Ecology In many rivers, Podostemaceae are an important food source for a wide range of animals. For example, the tadp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mylesinus Schomburgkii
''Mylesinus'' is a genus of serrasalmids from South America, where found in the eastern Amazon, Essequibo and Orinoco basins. They are rheophilic, typically found at rapids and mainly feed on Podostemaceae plants. Because of their habitat preference, they are threatened by the building of dams. They reach up to in standard length, and the adult males have a double-lobed anal fin and several filamentous extensions on the dorsal fin. Species There are three recognized species: * '' Mylesinus paraschomburgkii'' Jégu, dos Santos & E. J. G. Ferreira, 1989 * '' Mylesinus paucisquamatus'' Jégu & dos Santos, 1988 * '' Mylesinus schomburgkii'' Valenciennes Valenciennes (, also , , ; nl, label=also Dutch, Valencijn; pcd, Valincyinnes or ; la, Valentianae) is a commune in the Nord department, Hauts-de-France, France. It lies on the Scheldt () river. Although the city and region experienced a ..., 1850 References Serrasalmidae Taxa named by Achille Valencien ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mylesinus Paucisquamatus
''Mylesinus'' is a genus of serrasalmids from South America, where found in the eastern Amazon, Essequibo and Orinoco basins. They are rheophilic, typically found at rapids and mainly feed on Podostemaceae plants. Because of their habitat preference, they are threatened by the building of dams. They reach up to in standard length, and the adult males have a double-lobed anal fin and several filamentous extensions on the dorsal fin. Species There are three recognized species: * '' Mylesinus paraschomburgkii'' Jégu, dos Santos & E. J. G. Ferreira, 1989 * '' Mylesinus paucisquamatus'' Jégu & dos Santos, 1988 * ''Mylesinus schomburgkii'' Valenciennes Valenciennes (, also , , ; nl, label=also Dutch, Valencijn; pcd, Valincyinnes or ; la, Valentianae) is a commune in the Nord department, Hauts-de-France, France. It lies on the Scheldt () river. Although the city and region experienced a ..., 1850 References Serrasalmidae Taxa named by Achille Valencienn ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Efrem Jorge Gondim Ferreira
Efrem is a village in the municipality of Madzharovo, in Haskovo Province, in southern Bulgaria Bulgaria (; bg, България, Bǎlgariya), officially the Republic of Bulgaria,, ) is a country in Southeast Europe. It is situated on the eastern flank of the Balkans, and is bordered by Romania to the north, Serbia and North Macedo .... History In the past, Efrem (known until 1906 as Urumkioy) was inhabited by Greek population. The local Greeks emigrated to Greece (mainly to the villages of Ormenio and Ptelea in Evros prefecture). In their houses Bulgarian refugees from Western Thrace (now in Greece) and Asia Minor (now in Turkey) were accommodated. References Villages in Haskovo Province {{Haskovo-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geraldo Mendes Dos Santos
Geraldo may refer to: * Geraldo (bandleader) (1904–1974), English bandleader * ''Geraldo'' (talk show), a daytime television tabloid talk show ** Geraldo Rivera, American television personality and host of ''Geraldo'' * Geraldo Rocha Pereira (born 1994), Brazilian footballer * Geraldo Moreira da Silva Júnior (born 1974), Brazilian footballer * Geraldo (footballer, born 1991), Angolan footballer * Geraldo (name), a given name See also *Giraldo Giraldo is a Spanish and Italian surname. Notable people with the surname include: * Alejandra Giraldo (born 1984), Colombian journalist, newscaster and social commentator * Andrés Giraldo (born 1989), a Colombian footballer * Blas Giraldo Reyes ... * Heraldo * * {{disambiguation, hn ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Michel Louis Arthur Marie Ange François Jégu
Michel may refer to: * Michel (name), a given name or surname of French origin (and list of people with the name) * Míchel (nickname), a nickname (a list of people with the nickname, mainly Spanish footballers) * Míchel (footballer, born 1963), Spanish former footballer and manager * ''Michel'' (TV series), a Korean animated series * German auxiliary cruiser ''Michel'' * Michel catalog, a German-language stamp catalog * St. Michael's Church, Hamburg or Michel * S:t Michel, a Finnish town in Southern Savonia, Finland People * Alain Michel (other), several people * Ambroise Michel (born 1982), French actor, director and writer. * André Michel (director), French film director and screenwriter * André Michel (lawyer), human rights and anti-corruption lawyer and opposition leader in Haiti * Anette Michel (born 1971), Mexican actress * Anneliese Michel (1952 - 1976), German Catholic woman undergone exorcism * Annett Wagner-Michel (born 1955), German Woman International ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mylesinus Paraschomburgkii
''Mylesinus'' is a genus of serrasalmids from South America, where found in the eastern Amazon, Essequibo and Orinoco basins. They are rheophilic, typically found at rapids and mainly feed on Podostemaceae plants. Because of their habitat preference, they are threatened by the building of dams. They reach up to in standard length, and the adult males have a double-lobed anal fin and several filamentous extensions on the dorsal fin. Species There are three recognized species: * '' Mylesinus paraschomburgkii'' Jégu, dos Santos & E. J. G. Ferreira, 1989 * ''Mylesinus paucisquamatus'' Jégu & dos Santos, 1988 * ''Mylesinus schomburgkii'' Valenciennes Valenciennes (, also , , ; nl, label=also Dutch, Valencijn; pcd, Valincyinnes or ; la, Valentianae) is a commune in the Nord department, Hauts-de-France, France. It lies on the Scheldt () river. Although the city and region experienced a ..., 1850 References Serrasalmidae Taxa named by Achille Valencienne ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dorsal Fin
A dorsal fin is a fin located on the back of most marine and freshwater vertebrates within various taxa of the animal kingdom. Many species of animals possessing dorsal fins are not particularly closely related to each other, though through convergent evolution they have independently evolved external superficial fish-like body plans adapted to their marine environments, including most numerously fish, but also mammals such as cetaceans (whales, dolphins, and porpoises), and even extinct ancient marine reptiles such as various known species of ichthyosaurs. Most species have only one dorsal fin, but some have two or three. Wildlife biologists often use the distinctive nicks and wear patterns which develop on the dorsal fins of large cetaceans to identify individuals in the field. The bony or cartilaginous bones that support the base of the dorsal fin in fish are called ''pterygiophores''. Functions The main purpose of the dorsal fin is to stabilize the animal against rollin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anal Fin
Fins are distinctive anatomical features composed of bony spines or rays protruding from the body of a fish. They are covered with skin and joined together either in a webbed fashion, as seen in most bony fish, or similar to a flipper, as seen in sharks. Apart from the tail or caudal fin, fish fins have no direct connection with the spine and are supported only by muscles. Their principal function is to help the fish swim. Fins located in different places on the fish serve different purposes such as moving forward, turning, keeping an upright position or stopping. Most fish use fins when swimming, flying fish use pectoral fins for gliding, and frogfish use them for crawling. Fins can also be used for other purposes; male sharks and mosquitofish use a modified fin to deliver sperm, thresher sharks use their caudal fin to stun prey, reef stonefish have spines in their dorsal fins that inject venom, anglerfish use the first spine of their dorsal fin like a fishing rod to lu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Standard Length
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 measu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rapids
Rapids are sections of a river where the river bed has a relatively steep gradient, causing an increase in water velocity and turbulence. Rapids are hydrological features between a ''run'' (a smoothly flowing part of a stream) and a ''cascade''. Rapids are characterized by the river becoming shallower with some rocks exposed above the flow surface. As flowing water splashes over and around the rocks, air bubbles become mixed in with it and portions of the surface acquire a white color, forming what is called "whitewater". Rapids occur where the bed material is highly resistant to the erosive power of the stream in comparison with the bed downstream of the rapids. Very young streams flowing across solid rock may be rapids for much of their length. Rapids cause water aeration of the stream or river, resulting in better water quality. Rapids are categorized in classes, generally running from I to VI. A Class 5 rapid may be categorized as Class 5.1-5.9. While Class I rapids are eas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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