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Gymnotus Maculosus
''Gymnotus'' is a genus of Neotropical freshwater fish in the family Gymnotidae found widely in South America, Central America and southern Mexico (36th parallel south to 18th parallel north). The greatest species richness is found in the Amazon basin. They are sometimes referred to by the English name banded knifefish, although this typically is reserved for the most widespread species, '' G. carapo''. Overall ''Gymnotus'' is the most widespread genus in the order Gymnotiformes. Although not commonly eaten by humans, some members of this genus are used locally as fishing bait, and occasionally kept in aquariums. Habitat ''Gymnotus'' occur in virtually any freshwater habitat in their range, even those with little oxygen (survives by breathing air directly from the water surface), areas affected by pollution, and for a period on land if their aquatic habitat dries out. Large species tend to live near floating vegetation along the edges of large rivers or floodplains, while smalle ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carl Linnaeus
Carl Linnaeus (; 23 May 1707 – 10 January 1778), also known after his ennoblement in 1761 as Carl von Linné Blunt (2004), p. 171. (), was a Swedish botanist, zoologist, taxonomist, and physician who formalised binomial nomenclature, the modern system of naming organisms. He is known as the "father of modern taxonomy". Many of his writings were in Latin; his name is rendered in Latin as and, after his 1761 ennoblement, as . Linnaeus was born in Råshult, the countryside of Småland, in southern Sweden. He received most of his higher education at Uppsala University and began giving lectures in botany there in 1730. He lived abroad between 1735 and 1738, where he studied and also published the first edition of his ' in the Netherlands. He then returned to Sweden where he became professor of medicine and botany at Uppsala. In the 1740s, he was sent on several journeys through Sweden to find and classify plants and animals. In the 1750s and 1760s, he continued to collect an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electric Field
An electric field (sometimes E-field) is the physical field that surrounds electrically charged particles and exerts force on all other charged particles in the field, either attracting or repelling them. It also refers to the physical field for a system of charged particles. Electric fields originate from electric charges and time-varying electric currents. Electric fields and magnetic fields are both manifestations of the electromagnetic field, one of the four fundamental interactions (also called forces) of nature. Electric fields are important in many areas of physics, and are exploited in electrical technology. In atomic physics and chemistry, for instance, the electric field is the attractive force holding the atomic nucleus and electrons together in atoms. It is also the force responsible for chemical bonding between atoms that result in molecules. The electric field is defined as a vector field that associates to each point in space the electrostatic ( Coulomb) for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ricardo Campos-da-Paz
Ricardo is the Spanish and Portuguese cognate of the name Richard. It derived from Proto-Germanic ''*rīks'' 'king, ruler' + ''*harduz'' 'hard, brave'. It may be a given name, or a surname. People Given name *Ricardo de Araújo Pereira, Portuguese comedian *Ricardo Arjona, Guatemalan singer *Ricardo Arona, Brazilian mixed martial artist *Ricardo Ávila, Panamanian footballer *Ricardo Bralo, Argentine long-distance runner * Ricardo Bueno Fernández, Spanish politician *Ricardo Busquets, Puerto Rican swimmer *Ricardo Cardeno, Colombian triathlete *Ricardo Carvalho, Portuguese footballer *Ricardo Cortez, American actor *Ricardo Darín, Argentine actor *Ricardo (footballer, born 1980), full name Ricardo da Silva, Cape Verdean-Portuguese footballer *Ricardo Faty, Senegalese footballer *Ricardo Fischer, Brazilian basketball player *Ricardo Fortaleza, Filipino-Australian boxer *Ricardo Fuller, Jamaican football (soccer) player * Ricardo A. "Rick" Galindo, American politician *Ricardo Gom ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gymnotus Bahianus
''Gymnotus'' is a genus of Neotropical freshwater fish in the family Gymnotidae found widely in South America, Central America and southern Mexico (36th parallel south to 18th parallel north). The greatest species richness is found in the Amazon basin. They are sometimes referred to by the English name banded knifefish, although this typically is reserved for the most widespread species, '' G. carapo''. Overall ''Gymnotus'' is the most widespread genus in the order Gymnotiformes. Although not commonly eaten by humans, some members of this genus are used locally as fishing bait, and occasionally kept in aquariums. Habitat ''Gymnotus'' occur in virtually any freshwater habitat in their range, even those with little oxygen (survives by breathing air directly from the water surface), areas affected by pollution, and for a period on land if their aquatic habitat dries out. Large species tend to live near floating vegetation along the edges of large rivers or floodplains, while small ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Javier Alejandro Maldonado-Ocampo
{{Disambig, geo, surname ...
Javier may refer to: Arts, entertainment, and media * Javier, in video game '' Advance Wars: Dual Strike'' * Javier Rios, a character in the Monsters, Inc. franchise. * ''Javier'' (album), a 2003 album by the American singer Javier Colon, known as Javier People * Javier (name) Places * Javier, Spain * Javier, Leyte, Philippines See also * Hurricane Javier (other) * San Javier (other) * Xavier (other) * Xavier (given name) * Xavier (surname) Xavier (, , , , ; es, Javier ; eu, Xabier ) is a Portuguese surname. Notable people with the surname include: *Abel Xavier (born 1972), Portuguese footballer *Anderson Conceição Xavier (born 1980), Brazilian footballer *Arlene Xavier (born 196 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gymnotus Ardilai
''Gymnotus'' is a genus of Neotropical freshwater fish in the family Gymnotidae found widely in South America, Central America and southern Mexico (36th parallel south to 18th parallel north). The greatest species richness is found in the Amazon basin. They are sometimes referred to by the English name banded knifefish, although this typically is reserved for the most widespread species, ''Banded knifefish, G. carapo''. Overall ''Gymnotus'' is the most widespread genus in the order Gymnotiformes. Although not commonly eaten by humans, some members of this genus are used locally as fishing bait, and occasionally kept in aquariums. Habitat ''Gymnotus'' occur in virtually any freshwater habitat in their range, even those with little oxygen (survives by breathing air directly from the water surface), areas affected by pollution, and for a period on land if their aquatic habitat dries out. Large species tend to live near floating vegetation along the edges of large rivers or floodplai ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
William Gareth Richard Crampton
William is a masculine given name of Norman French origin.Hanks, Hardcastle and Hodges, ''Oxford Dictionary of First Names'', Oxford University Press, 2nd edition, , p. 276. It became very popular in the English language after the Norman conquest of England in 1066,All Things William"Meaning & Origin of the Name"/ref> and remained so throughout the Middle Ages and into the modern era. It is sometimes abbreviated "Wm." Shortened familiar versions in English include Will, Wills, Willy, Willie, Liam, Bill, and Billy. A common Irish form is Liam. Scottish diminutives include Wull, Willie or Wullie (as in Oor Wullie or the play ''Douglas''). Female forms are Willa, Willemina, Wilma and Wilhelmina. Etymology William is related to the German given name ''Wilhelm''. Both ultimately descend from Proto-Germanic ''*Wiljahelmaz'', with a direct cognate also in the Old Norse name ''Vilhjalmr'' and a West Germanic borrowing into Medieval Latin ''Willelmus''. The Proto-Germanic name is a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
James Spurling Albert
James S. Albert is a professor of Biology at the University of Louisiana at Lafayette. Dr. Albert is an author of over 100 scientific papers on the evolution and diversity of fishes, and is an expert in the systematics and biodiversity of Neotropical electric fishes (Gymnotiformes). Dr. Albert and his colleagues to date have described 50 new species. Publications Dr. Albert is co-editor with Roberto E. Reis of the book ''Historical Biogeography of Neotropical Freshwater Fishes'', which explores the evolutionary forces underlying the formation of the Amazon and Neotropical fish faunas. Dr. Albert is also co-editor witPeter van der Sleenof the book ''Field Guide to the Fishes of the Amazon, Orinoco, and Guianas'', which provides descriptions and identification keys for all the known genera of fishes that inhabit the Amazon basin and other regions of tropical South America South America is a continent entirely in the Western Hemisphere and mostly in the Southern Hemisphere ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gymnotus Arapaima
''Gymnotus'' is a genus of Neotropical freshwater fish in the family Gymnotidae found widely in South America, Central America and southern Mexico (36th parallel south to 18th parallel north). The greatest species richness is found in the Amazon basin. They are sometimes referred to by the English name banded knifefish, although this typically is reserved for the most widespread species, '' G. carapo''. Overall ''Gymnotus'' is the most widespread genus in the order Gymnotiformes. Although not commonly eaten by humans, some members of this genus are used locally as fishing bait, and occasionally kept in aquariums. Habitat ''Gymnotus'' occur in virtually any freshwater habitat in their range, even those with little oxygen (survives by breathing air directly from the water surface), areas affected by pollution, and for a period on land if their aquatic habitat dries out. Large species tend to live near floating vegetation along the edges of large rivers or floodplains, while small ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Regeneration (biology)
In biology, regeneration is the process of renewal, restoration, and tissue growth that makes genomes, cells, organisms, and ecosystems resilient to natural fluctuations or events that cause disturbance or damage. Every species is capable of regeneration, from bacteria to humans. Regeneration can either be complete where the new tissue is the same as the lost tissue, or incomplete where after the necrotic tissue comes fibrosis. At its most elementary level, regeneration is mediated by the molecular processes of gene regulation and involves the cellular processes of cell proliferation, morphogenesis and cell differentiation. Regeneration in biology, however, mainly refers to the morphogenic processes that characterize the phenotypic plasticity of traits allowing multi-cellular organisms to repair and maintain the integrity of their physiological and morphological states. Above the genetic level, regeneration is fundamentally regulated by asexual cellular processes. Regeneration ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neotropical Knifefish
The Gymnotiformes are an order of teleost bony fishes commonly known as Neotropical knifefish or South American knifefish. They have long bodies and swim using undulations of their elongated anal fin. Found almost exclusively in fresh water (the only exceptions are species that occasionally may visit brackish water to feed), these mostly nocturnal fish are capable of producing electric fields to detect prey, for navigation, communication, and, in the case of the electric eel (''Electrophorus electricus''), attack and defense. A few species are familiar to the aquarium trade, such as the black ghost knifefish (''Apteronotus albifrons''), the glass knifefish (''Eigenmannia virescens''), and the banded knifefish (''Gymnotus carapo''). Description Anatomy and locomotion Aside from the electric eel (''Electrophorus electricus''), Gymnotiformes are slender fish with narrow bodies and tapering tails, hence the common name of "knifefishes". They have neither pelvic fins nor dorsal f ... [...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] |
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