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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'' ( Humboldt, 1821) (black spot piranha) – Orinoco river basin. * '' Pygocentrus nattereri'' Kner, 1858 (red piranha, red-bellied piranha) – Amazon, Paraguay- Paraná-Uruguay, and Essequibo river basins, as well as various river in northeastern Brazil. * '' Pygocentrus palometa'' Valenciennes, 1850 – Orinoco river basin, possibly a nomen dubium. * '' Pygocentrus piraya'' ( G. Cuvier, 1819) (San Francisco piranha) – São Francisco River The São Francisco River (, ) is a large Rivers of Brazil, river in Brazil. With a length of , it is the longest river that runs entirely in Brazilian ... [...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 . 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 mi ... [...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 (biology), type of piranha native to South America, found in the Amazon basin, Amazon, Paraguay River, Paraguay, Paraná River, Paraná and Essequibo River, 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 o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Piranha
A piranha (, or ; ) is any of a number of freshwater fish species in the subfamily Serrasalminae, of the family Serrasalmidae, in the 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 Old Tupi '' pirãîa'', being first attested in the 1587 treatise ' by Portuguese explorer Gabriel Soares de Sousa. ''Piranha'' first appears in 1869 in English literature, likely borrowed from Portuguese. Taxonomy and evolution Piranhas belong to the family Serrasalmidae, which includes closely related omnivorous fish such as pacus. Traditionally, only the four genera '' Pristobrycon'', '' Pygocentrus'', '' Pygopristis'', and '' Serrasalmus'' are considered to be true piranhas, due to their specialized teeth. H ... [...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, and has aggressive tendencies when hungry, stressed, or seeking live food. Like most in the Serrasalmidae family, piraya piranhas dental morphology has a majo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pygocentrus Cariba
''Pygocentrus cariba'' or black spot piranha is a species of piranha endemic to Venezuela and Colombia; specifically, to the Orinoco River basin lowlands and the Llanos region. 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 species pursued by recreational fishing, recreational fishers (typically angling, anglers), and can be freshwater fish, freshwater or saltwater fish. Game fish can be fish as food, eaten aft .... 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 Serrasalmidae Piranhas Freshwater fish of Col ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pygocentrus Palometa
''Pygocentrus palometa'' is a species of piranha endemic to Venezuela, where it is 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 headquartered in Elorrio, Basque Country (autonomous community), Basque Country. It is run as a worker-consumer hybrid co-operative within the Mondragón Corporation group, with nearly 1,000 outlets spread a ... Foundation. Retrieved 9 August 2016. References Serrasalmidae Piranhas Freshwater fish of Venezuela Endemic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Serrasalmidae
The Serrasalmidae (serrasalmids) are a family of characiform fishes native to freshwater habitats of South America. They include 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 bony 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 fro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
São Francisco River
The São Francisco River (, ) is a large Rivers of Brazil, 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 River, Amazon, the Paraná River, Paraná and the Madeira River, 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 Serra da Canastra, 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 ends on the boundaries between the states of Alagoas and Sergipe and washes into the Atlantic Ocean. In addition to the five states which the São Francisco directly traver ... [...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 approximately 1 million km2, with 65% of it in Venezuela and 35% in Colombia. It is the List of rivers by discharge, fourth largest river in the world by Discharge (hydrology), discharge volume of water (39,000 m3/s at Orinoco Delta, delta) due to the high precipitation throughout its catchment area (ca 2,300 mm/a). 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 language, 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 Christo ... [...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 tributary, 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, as well as the territory of French Guiana. Most of the basin is covered by the Amazon rainforest, also known as Amazon rainforest, Amazonia. With a area of dense tropical forest, it is the largest rainforest in the world. Geography The Amazon River begins in the Andes, Andes Mountains at the west of the basin with its main tributary the Marañón River and Apurímac River, Apurimac River in Peru. The highest point in the Drainage divide, watershed of the Amazon is the second biggest peak of Yerupajá at . The Amazon River Basin occupies the entire central and eastern area of South America, lying to the east of the Andes mountain range and extending from th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Johannes Peter Müller
Johannes Peter Müller (14 July 1801 – 28 April 1858) was a German physiologist, comparative anatomist, ichthyologist, and herpetologist, known not only for his discoveries but also for his ability to synthesize knowledge. The paramesonephric duct (Müllerian duct) was named in his honor. Life Early years and education Müller was born in Coblenz. He was the son of a poor shoemaker, and was about to be apprenticed to a saddler when his talents attracted the attention of his teacher, and he prepared himself to become a Roman Catholic Priest. During his college course in Koblenz, he devoted himself to the classics and made his own translations of Aristotle. At first, his intention was to become a priest. When he was eighteen, his love for natural science became dominant, and he turned to medicine, entering the University of Bonn in 1819. There he received his M.D. in 1822. He then studied at the University of Berlin. There, under the influence of G. W. F. Hegel and Kar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Essequibo River
The Essequibo River (; originally called by Alonso de Ojeda; ) is the largest river in Guyana, and the largest river between the Orinoco and Amazon River, 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. It has a total drainage basin of and an average discharge of . Territory near the river is argued over by Venezuela and Guyana. The river is administered by Guyana after being previously colonized by the British Guiana, British. Historically, Venezuela has claimed the Essequibo River as their most eastern border, though in practice it was under Dutch colonization of the Guianas, Dutch control. Geography The river runs through the Guianan moist forests ecoregion. The average annual rainfall in the catchment area is 2,174 mm. There are many rapids and waterfalls (e.g., Kaieteur Falls on the Potaro River) along the route of the Essequibo, and its wide estuary is dotted ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
