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Oscar (fish)
The oscar (''Astronotus ocellatus'') is a species of fish from the cichlid family (biology), family known under a variety of common names, including tiger oscar, velvet cichlid, and marble cichlid. In tropical South America, where the species naturally resides, ''A. ocellatus'' specimens are often found for sale as a food fish in the local markets. The fish has been introduced to other areas, including India, China, Australia, and the United States. It is considered a popular aquarium fish in Europe and the U.S. Taxonomy The species was originally described by Louis Agassiz in 1831 as ''Lobotes ocellatus'', as he mistakenly believed the species was marine; later work assigned the species to the genus ''Astronotus''. The species also has a number of junior synonyms: ''Acara compressus'', ''Acara hyposticta'', ''Astronotus ocellatus zebra'', and ''Astronotus orbiculatus''. Description ''A. ocellatus'' examples have been reported to grow to about in length and in weight. The wil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Louis Agassiz
Jean Louis Rodolphe Agassiz ( ; ) FRS (For) FRSE (May 28, 1807 – December 14, 1873) was a Swiss-born American biologist and geologist who is recognized as a scholar of Earth's natural history. Spending his early life in Switzerland, he received a PhD at Erlangen and a medical degree in Munich. After studying with Georges Cuvier and Alexander von Humboldt in Paris, Agassiz was appointed professor of natural history at the University of Neuchâtel. He emigrated to the United States in 1847 after visiting Harvard University. He went on to become professor of zoology and geology at Harvard, to head its Lawrence Scientific School, and to found its Museum of Comparative Zoology. Agassiz is known for observational data gathering and analysis. He made institutional and scientific contributions to zoology, geology, and related areas, including multivolume research books running to thousands of pages. He is particularly known for his contributions to ichthyological classification, incl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tropical Fish Hobbyist
''Tropical Fish Hobbyist Magazine'' (abbreviated as ''TFH Magazine'') is a bimonthly magazine for hobbyist keepers of tropical fish, with news and information on a variety of topics concerning freshwater and marine aquariums. The magazine was first published in September 1952. The magazine is based in Neptune City, New Jersey. It is published by TFH Publications, which publishes books relating to the care aquarium fish and pets. Significant publications Significant articles published in ''Tropical Fish Hobbyist Magazine'' include the 1956 scientific description of the cardinal tetra by Leonard Peter Schultz. Noted authors Several established and well known ichthyologists, hobbyists, and experts have published works in TFH Magazine, including: * Herbert Axelrod *Leonard Peter Schultz Leonard Peter Schultz (1901–1986) was an American ichthyologist. Biography Schultz was born in 1901, at Albion, Michigan. He received education on ichthyology at Albion College, in which he ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nimbochromis Livingstonii
''Nimbochromis livingstonii'', Livingston's cichlid or, ''kalingono'' (in Chichewa), is a freshwater mouthbrooding cichlid native to Lake Malawi, an African Rift Lake. It is also found in the upper Shire River and Lake Malombe. They are found in inshore areas of the lake over sandy substrates. This species is thought to be one of the cichlids that feign death in order to lure their prey closer for a sudden strike and capture, a trait shared by other ''Nimbochromis spp.'' and some other cichlids. Taxonomy The fish's unique hunting method gives it its Chichewan name, ''kalingono'', which means "sleeper". The generic name ''Nimbochromis'' is a combination of the Latin word ''nimbus'' and Greek '' chromis''. Thus the genus could be translated as "clouded chromis", alluding to the fish's distinctive dark mottling (or "clouded" pattern) on white base coloration. The identity of the person honoured in the specific name is not given in Günther's description but it is presum ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ochmacanthus
''Ochmacanthus'' is a genus of pencil catfishes native to South America. These species are distributed in South America. ''O. alternus'' and ''O. orinoco'' originate from the Rio Negro and Orinoco River basins of Brazil and Venezuela. ''O. batrachstoma'' inhabits the Paraguay River basin in Brazil. ''O. flabelliferus'' lives in river drainages in Guyana and Venezuela. ''O. reinhardtii'' is known from the Amazon River basin in Brazil and drainages in French Guiana French Guiana, or Guyane in French, is an Overseas departments and regions of France, overseas department and region of France located on the northern coast of South America in the Guianas and the West Indies. Bordered by Suriname to the west .... Species There are currently 5 recognized species in this genus: * '' Ochmacanthus alternus'' G. S. Myers, 1927 * '' Ochmacanthus batrachostoma'' ( A. Miranda-Ribeiro, 1912)Neto, C.S. & de Pinna, M. (2016): Redescription of ''Ochmacanthus batrachostoma'' (Miranda-Ribe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rineloricaria
''Rineloricaria'' (from the Greek, ''rhinos'' meaning ''nose'', and the Latin, ''lorica'' meaning ''cuirass of leather'') is a genus of freshwater tropical catfish (order Siluriformes) belonging to the family Loricariidae. They are commonly called whiptail catfish because of the long filament that grows out of the tip of the caudal fin that is characteristic of the genus. With the exception of '' R. altipinnis'' from Panama, they are native to the rivers of northern and central South America. Some species are regularly seen in the aquarium trade. Taxonomy This genus was described by Pieter Bleeker in 1862, with ''R. lima'' as the type species. This genus is by far one of the most speciose of the subfamily Loricariinae, containing approx 60 species. On the other hand, it is one of the least resolved genera. In 2008, 14 new species were added to this genus. ''Hemiloricaria'', '' Fonchiiichthys'', and ''Leliella'' been variably considered synonyms of ''Rineloricaria''; these genera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bunocephalus
''Bunocephalus'' is a genus of banjo catfishes from South America. It is found in Magdalena, Orinoco, Amazon, Paraguay- Paraná, and São Francisco Rivers. It is also the only aspredinid genus found west of the Andes, found in the Atrato, San Juan, and Patía Rivers. This genus is a part of the family Aspredinidae, known as banjo catfishes for their large, flattened heads and slender tails that give the appearance of a banjo. Most species exhibit cryptic coloration, and the same holds true among ''Bunocephalus'' species. The skin is completely keratinized and is covered by large, unculiferous tubercles. ''Bunocephalus'' species may reach up to 13 centimetres SL. Species There are currently 12 recognized species in this genus: * '' Bunocephalus aleuropsis'' Cope, 1870 * '' Bunocephalus amaurus'' C. H. Eigenmann, 1912 (Camouflaged catfish) * '' Bunocephalus chamaizelus'' C. H. Eigenmann, 1912 * '' Bunocephalus colombianus'' C. H. Eigenmann, 1912 * '' Bunocephalus cor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Catfish
Catfish (or catfishes; order (biology), order Siluriformes or Nematognathi) are a diverse group of ray-finned fish. Catfish are common name, named for their prominent barbel (anatomy), barbels, which resemble a cat's whiskers, though not all catfish have prominent barbels or "whiskers", with some seemingly not having them. Siluriformes as a whole are Fish scale, scale-less, with neither the Armoured catfish, armour-plated nor the naked species having scales. This order of fish are Autapomorphy, defined by features of the skull and swimbladder. Catfish range in size and behavior from the three List of largest fish, largest species alive, the Mekong giant catfish from Southeast Asia, the wels catfish of Eurasia, and the piraíba of South America, to detritivorous and scavenging bottom feeders, down to tiny ectoparasitic species known as the Candiru (fish), candirus. In the Southern United States, catfish species may be known by a variety of slang names, such as "mud cat", " ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Astronotus Ocellatus 2
''Astronotus'' is a genus of South American fish from the family Cichlidae. There are two commonly recognized species in the genus (listed below), though genetic evidence suggests that additional species exist; several of these possibly distinct populations also have very different juvenile coloration from the two recognized species. Both of the commonly recognized species are found in the Amazon Basin, while one of two also is found in the Paraná and Paraguay rivers. ''Astronotus'' species grow to 35 cm in size, and are monomorphic. They are opportunistic omnivores and consume a range of smaller fish, fruits, nuts, crustaceans, mollusks and other invertebrates in the wild. One species, the oscar (''Astronotus ocellatus''), is popular in the aquarium trade. ''A. ocellatus'' forms monogamous pairs which spawn in the open, typically on a flattened stone or in a shallow depression. The juvenile colouration is different from that of the adult and may aid in camouflage of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Florida
Florida ( ; ) is a U.S. state, state in the Southeastern United States, Southeastern region of the United States. It borders the Gulf of Mexico to the west, Alabama to the northwest, Georgia (U.S. state), Georgia to the north, the Atlantic Ocean to the east, the Straits of Florida to the south, and The Bahamas to the southeast. About two-thirds of Florida occupies a peninsula between the Gulf of Mexico and the Atlantic Ocean. It has the List of U.S. states by coastline, longest coastline in the contiguous United States, spanning approximately , not including its many barrier islands. It is the only state that borders both the Gulf of Mexico and the Atlantic Ocean. With a population of over 23 million, it is the List of U.S. states and territories by population, third-most populous state in the United States and ranks List of states and territories of the United States by population density, seventh in population density as of 2020. Florida spans , ranking List of U.S. states ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Whitewater River (river Type)
A whitewater river is classified based on its chemistry, sediments and water colour. Whitewater rivers have high levels of suspended sediments, giving the water a pH that is near-neutral, a high electric conductivity and a pale muddy, '' café au lait''-like colour. Whitewater rivers are of great ecological importance and are important to local fisheries. The major seasonal Amazonian floodplains known as '' várzea'' receive their water from them. The best-known whitewater rivers are Amazonian and have their source in the Andes, but there are also whitewater rivers elsewhere in South America and in other continents. Amazonian rivers fall into three main categories: whitewater, blackwater and clearwater. This classification system was first proposed by Alfred Russel Wallace in 1853 based on water colour, but the types were more clearly defined according to chemistry and physics by from the 1950s to the 1980s. Although many Amazonian rivers fall clearly into one of these cate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
