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Heliotrygon Gomesi
''Heliotrygon gomesi'', or Gomes's round ray, is a species of freshwater stingray native to the western Amazon basin in South America, specifically Brazil.de Carvalho, M.R. and N.R. Lovejoy, 2011. Morphology and phylogenetic relationships of a remarkable new genus and two new species of Neotropical freshwater stingrays from the Amazon basin (Chondrichthyes: Potamotrygonidae). Zootaxa 2776:13-48. It is the type species of its genus. It spends the day in deep river channels, but moves closer to the shore at night to feed. Taxonomy ''Heliotrygon gomesi'' was first discovered in Rio Jamari, Brazil, and described by Marcelo Rodrigues de Carvalho and Nathan R. Lovejoy in 2011. The genus name, ''Heliotrygon,'' is derived from the Greek word 'helios,'' meaning sun, and refers to the ray's circular body that radiates outward. This species is named ''gomesi'' in honor of Ulisses L. Gomes and his pioneering research on elasmobranchs. Gomes' round ray is a member of the family Potamotryg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marcelo Rodrigues De Carvalho
Marcelo is a given name, the Spanish and Portuguese form of Marcellus. Marcelo may refer to: Given name * Marcelo Costa de Andrade (born 1967), Brazilian serial killer, rapist, and necrophile * Marcelo Arriagada (born 1973), Chilean road cyclist * Marcelo Barovero (born 1984), Argentine football goalkeeper * Marcelo Barticciotto (born 1967), Argentine-born Chilean former footballer and manager * Marcelo Bordon (born 1976), Brazilian footballer * Marcelo Cabo (born 1966), Brazilian football manager * Marcelo Carrusca (born 1983), Argentine-Australian professional footballer * Marcelo Cassaro (born 1970), Brazilian author of comics * Marcelo Chamusca (born 1966), Brazilian professional football manager and former player * Marcelo Chierighini (born 1991), Brazilian competitive swimmer * Marcelo Cirino (born 1992), Brazilian footballer * Marcelo D'Andrea, Argentine film actor * Marcelo Del Debbio (born 1974), Brazilian architect and writer * Marcelo Demoliner (born 1989), Brazilian t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heliotrygon
''Heliotrygon'' is a genus of freshwater stingrays in the family Potamotrygonidae. The genus is endemic to the Amazon basin in South America. Despite being discovered decades earlier, the genus was only scientifically described in 2011.de Carvalho, M.R. and N.R. Lovejoy (2011). Morphology and phylogenetic relationships of a remarkable new genus and two new species of Neotropical freshwater stingrays from the Amazon basin (Chondrichthyes: Potamotrygonidae). Zootaxa 2776: 13-48. They mainly live in deep river channels, but approach the shore at night to feed on fish. Their discs are very circular in shape (including the snout), and they have tiny eyes and a relatively short tail with an essentially harmless, vestigial stinger (sometimes even lacking). The largest confirmed disc width is , but there are reports of individuals where it was . Both species are greyish or brownish above, but while ''H. gomesi'' is overall plain without distinct markings, ''H. rosai'' has a white to crea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Freshwater Fish Of Peru
Fresh water or freshwater is any naturally occurring liquid or frozen water containing low concentrations of dissolved salts and other total dissolved solids. The term excludes seawater and brackish water, but 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. Water is critical to the survival of all living organisms. Many organisms can thrive on salt water, but the great majority of vascular plants and most insects, amphibians, reptiles, mammals and birds need fresh water to survive. Fresh water is the water resource that is of the most and immediate use to humans. Fresh water is not always pot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Snout
A snout is the protruding portion of an animal's face, consisting of its nose, mouth, and jaw. In many animals, the structure is called a muzzle, Rostrum (anatomy), rostrum, beak or proboscis. The wet furless surface around the nostrils of the nose of many mammals is called the rhinarium (colloquially this is the "cold wet snout" of some mammals). The rhinarium is often associated with a stronger sense of olfaction. Variation Snouts are found on many mammals in a variety of shapes. Some animals, including ursines and great cats, have box-like snouts, while others, like shrews, have pointed snouts. Pig snouts are flat and cylindrical. Primates Strepsirrhine primates have muzzles, as do baboons. Great apes have reduced muzzles, with the exception being human beings, whose face does not have protruding jaws nor a snout but merely a human nose. Dogs The muzzle begins at the Stop (dog), stop, just below the eyes, and includes the dog's nose and mouth. In the domestic dog, most of t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heliotrygon Rosai
''Heliotrygon rosai'', or Rosa's round ray, is a species of freshwater fish in the family Potamotrygonidae. It is native to the Amazon basin (Marajó to Peru) in South America.de Carvalho, M.R. & Lovejoy, N.R. (2011): Morphology and phylogenetic relationships of a remarkable new genus and two new species of Neotropical freshwater stingrays from the Amazon basin (Chondrichthyes: Potamotrygonidae). ''Zootaxa, 2776: 13–48.'' Its maximum disc width is and the stinger is greatly reduced, rendering it virtually harmless. It has not been evaluated by the IUCN red list The International Union for Conservation of Nature (IUCN) Red List of Threatened Species, also known as the IUCN Red List or Red Data Book, founded in 1964, is an inventory of the global conservation status and extinction risk of biological .... References Potamotrygonidae Freshwater stingrays of Brazil Freshwater fish of Peru Fish of the Amazon basin Fish described in 2011 {{batoid-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elasmobranchii
Elasmobranchii () is a subclass of Chondrichthyes or cartilaginous fish, including modern sharks ( division Selachii), and batomorphs (division Batomorphi, including rays, skates, and sawfish). Members of this subclass are characterised by having five to seven pairs of gill slits opening individually to the exterior, rigid dorsal fins and small placoid scales on the skin. The teeth are in several series; the upper jaw is not fused to the cranium, and the lower jaw is articulated with the upper. The details of this jaw anatomy vary between species, and help distinguish the different elasmobranch clades. The pelvic fins in males are modified to create claspers for the transfer of sperm. There is no swim bladder; instead, these fish maintain buoyancy with large livers rich in oil. The definition of the clade is unclear with respect to fossil chondrichthyans. Some authors consider it as equivalent to Neoselachii (the crown group clade including modern sharks, rays, and all o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ulisses L
Ulisses is a Portuguese-language given name. It is the Portuguese form of the English name Ulysses, which itself derives from a Latin form of Odysseus (a legendary Greek king). People with the name * Ulisses Soares (born 1958), Brazilian official in the Church of Jesus Christ of Latter-day Saints * Ulisses Morais (born 1959), Portuguese footballer * Ulisses Correia e Silva (born 1962), Prime Minister of Cape Verde * Ulisses Braga Neto (born 1971), Brazilian academic * Ulisses (footballer, born 1986), full name Ulisses Alves da Silveira, Brazilian football left-back * Ulisses (footballer, born 1989), full name Ulisses Rocha de Oliveira, Brazilian football midfielder * Ulisses Garcia (born 1996), Swiss footballer * Ulisses (footballer, born 1999), full name Ulisses Wilson Jeronymo Rocha, Brazilian football defender See also * Ulise, male given name * Ulisse (given name), the Italian version of the name * Ulises, the Spanish variant of the name * Ulysse, the French variant of the name ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jamari River
The Jamari River is a river of Rondônia state in western Brazil. Part of the river's watershed is covered by the Jacundá National Forest, a sustainable use conservation unit. The Jamari river is dammed by the Samuel Hydroelectric Dam near Porto Velho Porto Velho (, ''Old Port'') is the capital (political), capital of the Brazilian States of Brazil, state of Rondônia, in the upper Amazon River basin. The population is 460,434 people (as of the Brazilian Institute of Geography and Statistics, ..., which forms a reservoir that covers . The Samuel Ecological Station was established in compensation for the environmental impact. The ecological station extends to the east of the dam and protects part of the Jamari river basin. See also * List of rivers of Rondônia ReferencesBrazilian Ministry of Transport Rivers of Rondônia {{Rondônia-river-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nathan R
Nathan or Natan may refer to: People and biblical figures *Nathan (given name), including a list of people and characters with this name *Nathan (surname) *Nathan (prophet), a person in the Hebrew Bible *Nathan (son of David), a biblical figure, son of King David and Bathsheba *Nathan of Gaza, a charismatic figure who spread the word of Sabbatai Zevi *Starboy Nathan, a British singer who used the stage name "Nathan" from 2006 to 2011 * Nathan (footballer, born 1994), Brazilian winger Nathan Athaydes Campos Ferreira * Nathan (footballer, born 1995), Brazilian centre back Nathan Raphael Pelae Cardoso *Nathan (footballer, born 1996), Brazilian midfielder Nathan Allan de Souza * Nathan (footballer, born May 1999), Brazilian forward Nathan Crepaldi da Cruz *Nathan (footballer, born August 1999), Brazilian forward Nathan Palafoz de Sousa *Nathan (footballer, born 2001), Brazilian right back Nathan Santos de Araújo *Nathan (footballer, born 2002), Brazilian right back Nathan Gabriel d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
CSIRO
The Commonwealth Scientific and Industrial Research Organisation (CSIRO) is an Australian Government agency that is responsible for scientific research and its commercial and industrial applications. CSIRO works with leading organisations around the world. From its headquarters in Canberra, CSIRO maintains more than 50 sites across Australia as well as in France and the United States, employing over 6,500 people. Federally funded scientific research in Australia began in 1916 with the creation of the Advisory Council of Science and Industry. However, the council struggled due to insufficient funding. In 1926, research efforts were revitalised with the establishment of the Council for Scientific and Industrial Research (CSIR), which strengthened national science leadership and increased research funding. CSIR grew rapidly, achieving significant early successes. In 1949, legislative changes led to the renaming of the organisation as Commonwealth Scientific and Industrial Research ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus. :E.g. ''Panthera leo'' (lion) and ''Panthera onca'' (jaguar) are two species within the genus ''Panthera''. ''Panthera'' is a genus within the family Felidae. The composition of a genus is determined by taxonomy (biology), taxonomists. The standards for genus classification are not strictly codified, so different authorities often produce different classifications for genera. There are some general practices used, however, including the idea that a newly defined genus should fulfill these three criteria to be descriptively useful: # monophyly – all descendants of an ancestral taxon are grouped together (i.e. Phylogeneti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
