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Geophagus
''Geophagus'' is a genus of cichlids that mainly live in South America as far south as Argentina and Uruguay, but a single species, ''G. crassilabris'' is from Panama.Mattos, J.L.O., Costa, W.J.E.M. & Santos, A.C.A. (2015): ''Geophagus diamantinensis'', a new species of the ''G. brasiliensis'' species group from Chapada Diamantina, north-eastern Brazil (Cichlidae: Geophagini). ''Ichthyological Explorations of Freshwaters, 26 (3): 209-220.'' They are found in a wide range of freshwater habitats. They are part of a group popularly known as eartheaters and mostly feed by picking up mouthfuls of sediment to sift out food items such as invertebrates, plant material and detritus. The largest species reach up to in standard length. They are mostly kept in aquariums. As an invasive species ''Geophagus surinamensis'' was an invasive species in Malaysia, recently found in Putrajaya, the populations are now controlled by giant snakeheads. Taxonomy Some cichlids previously included in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geophagus Brasiliensis
The pearl cichlid (''Geophagus brasiliensis'') is a species of fish in the North American cichlid family. It is native to southeastern Brazil (north to Bahia), Paraguay, Uruguay and far northeastern Argentina,Mattos, J.L.O., Costa, W.J.E.M. & Santos, A.C.A. (2015): ''Geophagus diamantinensis'', a new species of the ''G. brasiliensis'' species group from Chapada Diamantina, north-eastern Brazil (Cichlidae: Geophagini). ''Ichthyological Explorations of Freshwaters, 26 (3): 209–220.'' where it is found in rivers, lakes, and nearby slightly brackish lagoons.SeriouslyFish: 'Geophagus' brasiliensis.' Retrieved 27 August 2014. It has been Introduced species, introduced to several countries far from its native range, including the United States, Australia, the Philippines, and Taiwan. This species is popular among aquarist, aquarists. Taxonomy ''G. brasiliensis'' is part of a species complex that also includes the rarer ''Geophagus diamantinensis, G. diamantinensis'', ''Geophagus ipo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geophagus Altifrons
''Geophagus altifrons'' are a freshwater eartheater cichlid, native to the Amazon River Basin, Brazil. It is also commonly known as the threadfin eartheater or the surinam eartheater. Introduced to Singapore and considered an invasive species, it thrives in slow-moving streams and reservoir (water), reservoirs, where it works as a sand sifter in most environments like most Geophagus species. Its ecological impact on its adopted habitat is still unknown. A member of the family Cichlidae, it can grow up to Fish measurement, in standard length. It is benthophagous by nature, taking mouthfuls of substrate (hence its common name) and sifting for edible items, with the remaining materials being expelled via the mouth and gill openings. It prefers clear and blackwater environments as opposed to turbid white waters. ''Geophagus altifrons'' are one of the most common species of Geophagus found in the pet trade, often wild caught and falsely labeled as ''Geophagus surinamensis'' within t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eartheater
Geophagini is a tribe of cichlids from the subfamily Cichlinae, the American cichlids. It is the sister taxon to the clade which includes the Cichlasomatini and Heroini. Fishes in the Geophagini are distributed from Panama south to Argentina, it is the most speciose of the seven tribes within the Cichlinae and it is subdivided into three sub-tribes, Acarichthyina, Crenicaratina, and Geophagina which together contain over 200 species. Geophagines show morphological and behavioural specialisations to enable them to sift the substrates within their mouths so that they can separate benthic invertebrates from substrates dominated by sand or silt. Classification The Geophagini are classified as follows: * Subtribe Acarichthyina Kullander, 1998 ** Genus '' Acarichthys'' C. H. Eigenmann, 1912 ** Genus '' Guianacara'' Kullander & Nijssen, 1989 * Subtribe Crenicaratina Kullander, 1998 ** Genus '' Biotoecus'' C. H. Eigenmann & C. H. Kennedy, 1903 ** Genus '' Crenicara'' Steindachner, 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cichlid
Cichlids () are a large, diverse, and widespread family of percomorph fish in the family Cichlidae, order Cichliformes. At least 1,760 species have been scientifically described, making it one of the largest vertebrate families, with only the Cyprinidae being more speciose. New species are discovered annually, and many species remain undescribed. The actual number of species is therefore unknown, with estimates varying between 2,000 and 3,000. They are native to the Neotropics, Africa (including Madagascar), the Middle East, and the Indian subcontinent, although some species have been introduced worldwide. Many cichlids, particularly tilapia, are important food fishes, while others, such as the '' Cichla'' species, are valued game fish. The family also includes many popular freshwater aquarium fish kept by hobbyists, including the angelfish, oscars, and discus. Cichlids have the largest number of endangered species among vertebrate families, most in the haplochrom ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Satanoperca
''Satanoperca'' is a small genus of cichlids from South America, where they are known from the Orinoco, Essequibo, Nickerie, Amazon and Paraná–Paraguay river basins. They are mainly found in areas with slow-moving waters, but some species have also been recorded from rapids. They are part of a group popularly known as eartheaters and feed by picking up mouthfuls of sand to sift out food items such as invertebrates, plant material and detritus (the only exception is mid-water feeding ''S. acuticeps''). They often feed in small groups and one individual may act as a watchman, which will charge an approaching piranha with its mouth open and fins erected. The ''Satanoperca'' in the group take turn acting as watchman. ''Satanoperca'' are up to in standard length, but the smallest species reach less than that size. The species fall into two or three main groups: The ''S. daemon'' group (including ''S. lilith'') are relatively large, and have a distinct dark spot on the tail an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Biotodoma
''Biotodoma'' is a small genus of cichlids native to rivers in the Amazon, Orinoco and Essequibo basins in South America South America is a continent entirely in the Western Hemisphere and mostly in the Southern Hemisphere, with a considerably smaller portion in the Northern Hemisphere. It can also be described as the southern Subregion#Americas, subregion o .... Species There are two currently recognized species in the genus, but additional cryptic species are known to exist.Carvalho, A.P.C., R.A. Collins, J.G. Martínez, I.P. Farias, and T. Hrbek (2019). From shallow to deep divergences: mixed messages from Amazon Basin cichlids. Hydrobiologia 832(1): 317–329. * '' Biotodoma cupido'' ( Heckel, 1840) (green-streaked eartheater) * '' Biotodoma wavrini'' ( J. P. Gosse, 1963) (Orinoco eartheater) References * Geophagini Cichlid genera Taxa named by Carl H. Eigenmann {{Cichlinae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Standard Length
Fish measurement is the measuring of individual fish and various parts of fish anatomy, their anatomies, for data used in many areas of ichthyology, including Taxonomy (biology), taxonomy and fishery biology. Overall length Standard length (SL) is the length of a fish measured from the tip of the snout to the posterior end of the last vertebra or to the posterior end of the midlateral portion of the Glossary of ichthyology#H, hypural plate. This measurement excludes the length of the caudal fin, caudal (tail) fin. Total length (TL) is the length of a fish measured from the tip of the snout to the tip of the longer lobe of the caudal fin, usually measured with the lobes compressed along the midline. It is a straight-line measure, not measured over the curve of the body. Standard length measurements are used with Teleostei (most Actinopterygii, bony fish), while total length measurements are used with Myxini (hagfish), Petromyzontiformes (lampreys) and usually Elasmobranchii (shark ... [...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] |
