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Pygocentrus
''Pygocentrus'' is a genus of the piranha family Serrasalmidae. All species are native to tropical and subtropical South America. All the species are predatory, scavengers and may form large schools. The famous red-bellied piranha, ''Pygocentrus nattereri'', is one of four species in the genus. Species There are currently four recognized species in this genus: * ''Pygocentrus cariba'' (Alexander von Humboldt, Humboldt, 1821) (black spot piranha) – Orinoco river basin. * ''Pygocentrus nattereri'' Rudolf Kner, Kner, 1858 (red piranha, red-bellied piranha) – Amazon Basin, Amazon, Paraguay River, Paraguay-Paraná River, Paraná-Uruguay River, Uruguay, and Essequibo River, Essequibo river basins, as well as various river in northeastern Brazil. * ''Pygocentrus palometa'' Achille Valenciennes, Valenciennes, 1850 – Orinoco river basin, possibly a nomen dubium.Reis, R. E., S. O. Kullander and C. J. Ferraris, Jr., editors (2003). Check list of the freshwater fishes of South and Cen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Red-bellied Piranha
The red-bellied piranha, also known as the red piranha (''Pygocentrus nattereri''), is a type of piranha native to South America, found in the Amazon, Paraguay, Paraná and Essequibo basins, as well as coastal rivers of northeastern Brazil.''Pygocentrus nattereri''. Animal Diversity Web. University of Michigan. Accessed 19 February 2016.Froese, R. and D. Pauly, Editors FishBase. 2015. This fish is locally abundant in its freshwater habitat. They are omnivorous foragers and feed on insects, worms, crustaceans, and fish. They are not a migratory species but do travel to seek out conditions conducive to breeding and spawning during periods of increase ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pygocentrus Nattereri
The red-bellied piranha, also known as the red piranha (''Pygocentrus nattereri''), is a type of piranha native to South America, found in the Amazon, Paraguay, Paraná and Essequibo basins, as well as coastal rivers of northeastern Brazil.''Pygocentrus nattereri''. Animal Diversity Web. University of Michigan. Accessed 19 February 2016.Froese, R. and D. Pauly, Editors FishBase. 2015. This fish is locally abundant in its freshwater habitat. They are omnivorous foragers and feed on insects, worms, crustaceans, and fish. They are not a migratory species but do travel to seek out conditions conducive to breeding and spawning during periods of increase ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Piranha
A piranha or piraña (, , or ; or , ) is one of a number of freshwater fish in the family Serrasalmidae, or the subfamily Serrasalminae within the tetra family, Characidae in order Characiformes. These fish inhabit South American rivers, floodplains, lakes and reservoirs. Although often described as extremely predatory and mainly feeding on fish, their dietary habits vary extensively, and they will also take plant material, leading to their classification as omnivorous. Etymology The name originates from the indigenous Tupi people and their respective Tupi language. It is formed from two words, meaning fish and meaning tooth; the same word is used by Indians to describe a pair of scissors. Another possible derivation is from , probably literally "biting-fish". In the mid 18th century the Portuguese merged the word into . Finally, the word may also come from the combination of meaning fish and meaning cut (which also meant "bad" or "devil" in Tupi-Guarani). Taxonomy an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pygocentrus Piraya
''Pygocentrus piraya'', often called the piraya piranha or San Francisco piranha, and sometimes sold as the man-eating piranha, is a large, aggressive piranha from the São Francisco River basin in Brazil. Description It is one of the largest piranhas, reaching a maximum length of 50 cm in the wild, and is sometimes considered the most beautiful, with its orange to yellow belly coloration, silver eyes, and rayed fibrous adipose fin. Like most other piranhas, ''P. piraya'' is laterally compressed and roughly circular in profile, and bears a mouthful of very sharp teeth. The lower jaw is thick, strong, and protruding. Names It is known by many vernacular names, such as Rio São Francisco piranha, black-tailed piranha, and king emperor piranha, and locally it is simply termed ''piraya''. Diet This fish is an omnivore, but when hungry, stressed, or seeking live food it is very aggressive. This characteristic combined with its large size make it a danger to humans. Piranha att ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pygocentrus Cariba
''Pygocentrus cariba'' or black spot piranha is a species of piranha native to the Orinoco River basin lowlands and the Llanos region in Venezuela and Colombia. This species can reach a total length of . It is popular as a game fish Game fish, sport fish or quarry refer to popular fish pursued by recreational anglers, and can be freshwater or saltwater fish. Game fish can be eaten after being caught, or released after capture. Some game fish are also targeted commerciall .... They are a carnivorous species, that feed on a wide variety of fish, carrion, invertebrates, and other aquatic animals. The name Cariba means cannibal in native language, and comes from the people of the Island Caribs who had a reputation as warriors who raided neighboring islands, and practiced cannibalism, according to the Spanish conquistadors. This species has very high propensity for cannibalism among its species. References Piranhas Fish of South America Serrasalmidae Taxa named by A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pygocentrus Palometa
''Pygocentrus palometa'' is a species of piranha native to South America, where restricted to the Orinoco Basin. Although recognized by FishBase, the scientific name may be a nomen dubium. "Palometa" is a general common name used in South America for many serrasalmids, such as the black spot piranha, red-bellied piranha, redhook myleus, wimple piranha, ''Metynnis'', ''Mylossoma'', ''Pygopristis denticulata'', ''Pristobrycon striolatus'' and ''Serrasalmus'', as well as the unrelated marine fish ''Beryx'', '' Brama'', ''Trachinotus goodei'' and ''Taractichthys''.Pescados y Mariscos: Palometa o Japuta'' Eroski Eroski is a Spanish supermarket chain with nearly 1,000 outlets spread across Spain (excluding franchises). It is run as a worker-consumer hybrid co-operative within the Mondragón Corporation group. The establishments vary in size from the la ... Foundation. Retrieved 9 August 2016. References Piranhas Fish of South America Serrasalmidae Taxa named by Achille ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Serrasalmidae
The Serrasalmidae (serrasalmids) are a family of characiform fishes, recently elevated to family status. It includes more than 90 species. The name means "serrated salmon family", which refers to the serrated keel running along the belly of these fish. Fish classified as Serrasalmidae are also known by these common names: pacu, piranha, and silver dollar. These common names generally designate differing dental characteristics and feeding habits. Description Serrasalmids are medium- to large-sized characiform fishes that reach about long, generally characterized by a deep, laterally compressed body with a series of midventral abdominal spines or scutes, and a long dorsal fin (over 16 rays). Most species also possess an anteriorly directed spine just before the dorsal fin extending from a supraneural bone; exceptions include members of the genera ''Colossoma'', ''Piaractus'', and ''Mylossoma''. Most serrasalmids have about 60 chromosomes, ranging from 54 to 62.''Metynnis'' has ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
São Francisco River
The São Francisco River (, ) is a large river in Brazil. With a length of , it is the longest river that runs entirely in Brazilian territory, and the fourth longest in South America and overall in Brazil (after the Amazon, the Paraná and the Madeira). It used to be known as the by the indigenous people before colonisation, and is today also known as . The São Francisco originates in the Canastra mountain range in the central-western part of the state of Minas Gerais. It runs generally north in the states of Minas Gerais and Bahia, behind the coastal range, draining an area of over , before turning east to form the border between Bahia on the right bank and the states of Pernambuco and Alagoas on the left one. After that, it forms the boundary between the states of Alagoas and Sergipe and washes into the Atlantic Ocean. In addition to the five states which the São Francisco directly traverses or borders, its drainage basin also includes tributaries from the state of Goià ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amazon Basin
The Amazon basin is the part of South America drained by the Amazon River and its tributaries. The Amazon drainage basin covers an area of about , or about 35.5 percent of the South American continent. It is located in the countries of Bolivia, Brazil, Colombia, Ecuador, Guyana, Peru, Suriname, and Venezuela. Most of the basin is covered by the Amazon rainforest, also known as Amazonia. With a area of dense tropical forest, this is the largest rainforest in the world.  Geography The Amazon River begins in the Andes Mountains at the west of the basin with its main tributary the Marañón River and Apurimac River in Peru. The highest point in the watershed of the Amazon is the second biggest peak of Yerupajá at . With a length of about before it drains into the Atlantic Ocean, it is one of the two longest rivers in the world. A team of scientists has claimed that the Amazon is longer than the Nile, but debate about its exact length continues. The Amazon system ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Orinoco
The Orinoco () is one of the longest rivers in South America at . Its drainage basin, sometimes known as the Orinoquia, covers , with 76.3 percent of it in Venezuela and the remainder in Colombia. It is the fourth largest river in the world by discharge volume of water. The Orinoco River and its tributaries are the major transportation system for eastern and interior Venezuela and the Llanos of Colombia. The environment and wildlife in the Orinoco's basin are extremely diverse. Etymology The river's name is derived from the Warao term for "a place to paddle", itself derived from the terms ''güiri'' (paddle) and ''noko'' (place) i.e. a navigable place. History The mouth of the Orinoco River at the Atlantic Ocean was documented by Christopher Columbus on 1 August 1498, during his third voyage. Its source at the Cerro Delgado–Chalbaud, in the Parima range, was not explored until 453 years later, in 1951. The source, near the Venezuelan–Brazilian border, at ab ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Essequibo River
The Essequibo River (Spanish: ''RÃo Esequibo'' originally called by Alonso de Ojeda ''RÃo Dulce'') is the largest river in Guyana, and the largest river between the Orinoco and Amazon. Rising in the Acarai Mountains near the Brazil–Guyana border, the Essequibo flows to the north for through forest and savanna into the Atlantic Ocean. With a total drainage basin of and an average discharge of . Territory near the river is argued over by Venezuela and Guyana. Venezuela considers that the natural border according to the divortium aquarum that delimits the eastern margin of that country with the Cooperative Republic of Guyana is "by law", although due to the territorial dispute between the two countries for the sovereignty of Guayana Esequiba, it is "De facto administered and occupied for the most part by the former English colony of British Guiana, present-day Guyana. Geography The river runs through the Guianan moist forests ecoregion. The average annual rainfall in the catc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fish Of South America
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. Most f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
