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Pacu
Pacu () is a common name used to refer to several species of omnivorous South American freshwater serrasalmid fish that are related to the piranha. Pacu and piranha do not have similar teeth, the main difference being jaw alignment; piranha have pointed, razor-sharp teeth in a pronounced underbite, whereas pacu have squarer, straighter teeth and a less severe underbite, or a slight overbite. Pacu, unlike piranha, mainly feed on plant material and not flesh or scales. Additionally, the pacu can reach much larger sizes than piranha, at up to in total length and in weight. Name The common name ''pacu'' is generally applied to fish classified under the below listed genera. Among these, several genera contain species where commonly used English names include the word ''pacu'', as listed. *''Colossoma'' – black pacu, black-finned pacu, giant pacu *''Metynnis'' *''Mylesinus'' (''Myloplus'') *''Mylossoma '' *''Ossubtus'' – parrot pacu, eaglebeak pacu *'' Piaractus'' – red-bel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Piaractus Brachypomus
''Piaractus brachypomus'', the pirapitinga, is a large species of pacu, a close relative of piranhas and silver dollars, in the serrasalmid family.Nico, L.; P. Fuller; and M. Neilson (22 October 2013)Piaractus brachypomus.USGS Nonindigenous Aquatic Species Database, Gainesville, FL. Retrieved 2 March 2017. It is native to the Amazon basin in tropical South America, but it formerly included populations in the Orinoco, which was described in 2019 as a separate species, ''P. orinoquensis''.Escobar, M.D., R.P. Ota, A. Machado-Allison, I.P. Farias and T. Hrbek (2019). A new species of Piaractus (Characiformes: Serrasalmidae) from the Orinoco Basin with a redescription of Piaractus brachypomus. Journal of Fish Biology: -x Additionally, ''P. brachypomus'' is widely farmed and has been introduced to other regions.SeriouslyFishPiaractus brachypomus.Retrieved 2 March 2017. In South Florida they are invasive in rivers, canals or lakes. As with a number of other closely related species, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Colossoma Macropomum
The tambaqui (''Colossoma macropomum'') is a large species of freshwater fish in the family Serrasalmidae. It is native to tropical South America, but kept in aquaculture and introduced elsewhere. It is also known by the names black pacu, black-finned pacu, giant pacu, cachama, gamitana, and sometimes as pacu (a name used for several other related species). The tambaqui is currently the only member of ''Colossoma'', but the '' Piaractus'' species were also included in this genus in the past. Distribution The tambaqui is native to freshwater habitats in the Amazon and Orinoco basins of tropical South America. In nutrient-rich whitewater rivers such as the Madeira, Juruá, Putumayo (Içá) and Purus it ranges throughout, all the way up to their headwaters.Araujo-Lima, C.A.R.M.; and M.L. Ruffino (2003). Migratory Fishes of the Brazilian Amazon. Pp. 233—302 in: Carolsfeld, J.; B. Harvey; C. Ross; and A. Baer (editors). Migratory Fishes of South America. In nutrient-poor black ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Colossoma
The tambaqui (''Colossoma macropomum'') is a large species of freshwater fish in the family Serrasalmidae. It is native to tropical South America, but kept in aquaculture and introduced elsewhere. It is also known by the names black pacu, black-finned pacu, giant pacu, cachama, gamitana, and sometimes as pacu (a name used for several other related species). The tambaqui is currently the only member of ''Colossoma'', but the ''Piaractus'' species were also included in this genus in the past. Distribution The tambaqui is native to freshwater habitats in the Amazon and Orinoco basins of tropical South America. In nutrient-rich whitewater rivers such as the Madeira, Juruá, Putumayo (Içá) and Purus it ranges throughout, all the way up to their headwaters.Araujo-Lima, C.A.R.M.; and M.L. Ruffino (2003). Migratory Fishes of the Brazilian Amazon. Pp. 233—302 in: Carolsfeld, J.; B. Harvey; C. Ross; and A. Baer (editors). Migratory Fishes of South America. In nutrient-poor blackw ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Piaractus Mesopotamicus
''Piaractus mesopotamicus'', the small-scaled pacu, Paraná River pacu or simply pacu (a name shared with other species), is a South American ray-finned fish that is native to the Paraguay-Paraná River basin,Nico, L.; and B. Loftus (7 October 2012)Piaractus mesopotamicus.USGS Nonindigenous Aquatic Species Database, Gainesville, FL. Retrieved 13 March 2017. but it has been introduced by aquaculture activities in a wider area.A. A. Agostinho, L. C. Gomes, H. I. Suzuki, H. Ferreira Júlio Jr: ''Migratory fishes of the Upper Paraná River basin, Brazil.'' Núcleo de Pesquisas em Limnologia, Ictiologia e Aquicultura (Nupelia). Universidade Estadual de Maringá. Maringá, Paraná, Brazil. In its native range it is also known as the pacú chato, pez chato ("flat fish") or mbiraí-piraí. ''Piaractus mesopotamicus'' is a robust fish, with ovoid shape, flattened laterally. Its colour is dark grey to silver, with a white belly and a yellow breast. It reaches up to in length and in weig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Piaractus
''Piaractus'' is a genus of large serrasalmid from South America. The two traditionally recognized species of ''Piaractus'' are very similar in appearance and were formerly included in the genus ''Colossoma'', which currently only contains another similar species, the tambaqui (''Colossoma macropomum'').Nico, L.; P. Fuller; and M. Neilson (22 October 2013)Piaractus brachypomus.USGS Nonindigenous Aquatic Species Database, Gainesville, FL. Retrieved 2 March 2017. A third ''Piaractus'' was described in 2019 as a new species, but it was formerly considered a subpopulation of ''P. brachypomus''.Escobar, M.D., R.P. Ota, A. Machado-Allison, I.P. Farias and T. Hrbek (2019). A new species of Piaractus (Characiformes: Serrasalmidae) from the Orinoco Basin with a redescription of Piaractus brachypomus. Journal of Fish Biology: -x Species There are currently three recognized species in this genus: * ''Piaractus brachypomus'' ( G. Cuvier, 1818) (Pirapatinga or red-bellied pacu) * ''Piaract ... [...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'' ... [...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 and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ossubtus
''Ossubtus'' is a genus of fish in the family Serrasalmidae. It contains a single species, ''Ossubtus xinguense'', the parrot pacu or eaglebeak pacu, The species is endemic to rapids in the Xingu River basin in the Brazilian Amazon.Andrade, M.C., Sousa, L.M., Ota, R.P., Jégu, M. & Giarrizzo, T. (2016)Redescription and Geographical Distribution of the Endangered Fish ''Ossubtus xinguense'' Jégu 1992 (Characiformes, Serrasalmidae) with Comments on Conservation of the Rheophilic Fauna of the Xingu River.''PLoS ONE, 11 (9): e0161398.'' This endangered species is primarily a herbivore. Description The body of ''Ossubtus xinguense'' is ovoid in shape. The profile of the snout is blunt. In young fish, the mouth is terminal (pointing forward); however, as the fish grows, the mouth turns downward and becomes strictly ventral in individuals longer than . This gives the mouth a beak-like appearance. It reaches up to in total length and about in weight. Range and habitat ''Ossubtus xin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Actinopterygii
Actinopterygii (; ), members of which are known as ray-finned fishes, is a class of bony fish. They comprise over 50% of living vertebrate species. The ray-finned fishes are so called because their fins are webs of skin supported by bony or horny spines (rays), as opposed to the fleshy, lobed fins that characterize the class Sarcopterygii (lobe-finned fish). These actinopterygian fin rays attach directly to the proximal or basal skeletal elements, the radials, which represent the link or connection between these fins and the internal skeleton (e.g., pelvic and pectoral girdles). By species count, actinopterygians dominate the vertebrates, and they constitute nearly 99% of the over 30,000 species of fish. They are ubiquitous throughout freshwater and marine environments from the deep sea to the highest mountain streams. Extant species can range in size from ''Paedocypris'', at , to the massive ocean sunfish, at , and the long-bodied oarfish, at . The vast majority of Actinop ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tometes
''Tometes'' is a genus of fish in the family Serrasalmidae found in fast-flowing rivers in northern South America. Adults of all seven species in this genus are phytophagous, feeding primarily on aquatic plants in the family Podostemaceae. The genus name ''Tometes'' was coined in 1850 by Valenciennes in reference to the incisiform teeth. When the type species of the genus, ''T. trilobatus'', was described in 1850, it was placed in synonym with ''Myleus setiger'', the type species of the genus '' Myleus'', which is why ''Tometes'' and ''Myleus'' were considered to be the same genus for a long time. It was just later that the two genera were revalitated and other specimen could be categorized in the genus ''Tometes''. Taxonomy Even today the taxonomic classification of the Serrasalmidae is not an easy task. Many names are placed in synonymy due to a lack of information and insufficient data bases. It was not long ago when it was discovered that ''Tometes'' and '' Myleus'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Utiaritichthys
''Utiaritichthys'' is a genus of serrasalmid fish found in the Amazon and Orinoco basins in tropical South America. The adults are typically found in rapidly flowing water where they feed on aquatic plants in the family Podostemaceae and filamentous algae.Pereira, T.N.A. & Castro, R.M.C. (2014)A new species of Utiaritichthys Miranda Ribeiro (Characiformes: Serrasalmidae) from the Serra dos Parecis, Tapajós drainage.''Neotropical Ichthyology, 12 (2): 397-402''. They reach up to in standard length. The monophyly and taxonomic position of the genus is not fully resolved. The only clear difference from ''Myloplus ''Myloplus'' is a genus of freshwater fish in the family Serrasalmidae found in tropical and subtropical South America, where they inhabit rivers and streams (both slow and fast-flowing). They are primarily herbivores, but also take some animal ...'' is the comparatively longer body of ''Utiaritichthys''. Species There are currently 3 recognized species in this genu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fish Farm
upright=1.3, Salmon farming in the sea (mariculture) at Loch Ainort, Isle of Skye">mariculture.html" ;"title="Salmon farming in the sea (mariculture">Salmon farming in the sea (mariculture) at Loch Ainort, Isle of Skye, Scotland Fish farming or pisciculture involves commercial animal husbandry, breeding of fish, usually for food, in fish tanks or artificial pen (enclosure), enclosures such as fish ponds. It is a particular type of aquaculture, which is the controlled cultivation and harvesting of aquatic animals such as fish, crustaceans, molluscs and so on, in natural or pseudo-natural environment. A facility that releases juvenile fish into the wild for recreational fishing or to supplement a species' natural numbers is generally referred to as a fish hatchery. Worldwide, the most important fish species produced in fish farming are carp, catfish, salmon and tilapia. Global demand is increasing for dietary fish protein, which has resulted in widespread overfishing in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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