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Astronotus Ocellatus
The oscar (''Astronotus ocellatus'') is a species of fish from the cichlid 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 wild-caught forms of ... [...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, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ucayali
The Ucayali River ( es, Río Ucayali, ) is the main headstream of the Amazon River. It rises about north of Lake Titicaca, in the Arequipa region of Peru and becomes the Amazon at the confluence of the Marañón close to Nauta city. The city of Pucallpa is located on the banks of the Ucayali. Description The Ucayali, together with the Apurímac River, the Ene River and the Tambo River, is today considered the main headwater of the ''Amazon River'', totaling a length of from the source of the ''Apurímac'' at Nevado Mismi to the confluence of the Ucayali and Marañón Rivers: *Apurímac River (total length): *Ene River (total length): *Tambo River (total length): * Ucayali River (confluence with Tambo River to confluence with the Marañón): Exploration The Ucayali was first called ''San Miguel'', then ''Ucayali'', ''Ucayare'', ''Poro'', ''Apu-Poro'', ''Cocama'' and ''Rio de Cuzco''. Peru has organised many costly and ably-conducted expeditions to explore it. One of them ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vitamin C
Vitamin C (also known as ascorbic acid and ascorbate) is a water-soluble vitamin found in citrus and other fruits and vegetables, also sold as a dietary supplement and as a topical 'serum' ingredient to treat melasma (dark pigment spots) and wrinkles on the face. It is used to prevent and treat scurvy. Vitamin C is an essential nutrient involved in the repair of tissue, the formation of collagen, and the enzymatic production of certain neurotransmitters. It is required for the functioning of several enzymes and is important for immune system function. It also functions as an antioxidant. Most animals are able to synthesize their own vitamin C. However, apes (including humans) and monkeys (but not all primates), most bats, some rodents, and certain other animals must acquire it from dietary sources. There is some evidence that regular use of supplements may reduce the duration of the common cold, but it does not appear to prevent infection. It is unclear whether supple ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tropical Fish Hobbyist
''Tropical Fish Hobbyist Magazine'' (abbreviated as ''TFH Magazine'') is a bimonthly magazine geared to 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 go ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nimbochromis Livingstonii
''Nimbochromis livingstonii'', Livingston's cichlid or (locally) ''kalingono'', 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. Morphology A laterally compressed fish with a large mouth. Maximum reported length of male fish in the wild is TL while females reach TL. Colouration variable but typically mottled brown and white. The dorsal fin may also show blue coloration while maintaining an orange to red band and sometimes a white line. Adult males frequently "color up" in response to changing conditions and rapidly change from spotted camouflage to brilliant blues and greens and may even exhibit a pale golden tone. Breeding males turn a dark blue which almost completely obscures their blotched pattern. The anal fin is usually orange to red. Females are similar, but usually lack the yellow "egg spot" markings on the ... [...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. 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-Ribeiro, 1912) (Siluriformes: Trichomycteridae): a possible case of incipient paedomorphism. ''Neotropical Ichthyology, 14 (1): e150030.'' * ''Ochmacanthus flabelliferus'' Eigenmann, 1912 * ''Ochmacanthus orinoco'' G. S. Myers, 1927 * ''Ochmacanthus reinhard ... [...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 about 30 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 gene ... [...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 corac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Catfish
Catfish (or catfishes; order Siluriformes or Nematognathi) are a diverse group of ray-finned fish. Named for their prominent barbels, which resemble a cat's whiskers, catfish range in size and behavior from the three largest species alive, the Mekong giant catfish from Southeast Asia, the wels catfish of Eurasia, and the piraíba of South America, to detritivores (species that eat dead material on the bottom), and even to a tiny parasitic species commonly called the candiru, ''Vandellia cirrhosa''. Neither the armour-plated types nor the naked types have scales. Despite their name, not all catfish have prominent barbels or "whiskers". Members of the Siluriformes order are defined by features of the skull and swimbladder. Catfish are of considerable commercial importance; many of the larger species are farmed or fished for food. Many of the smaller species, particularly the genus ''Corydoras'', are important in the aquarium hobby. Many catfish are nocturnal, [...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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Florida
Florida is a state located in the Southeastern region of the United States. Florida is bordered to the west by the Gulf of Mexico, to the northwest by Alabama, to the north by Georgia, to the east by the Bahamas and Atlantic Ocean, and to the south by the Straits of Florida and Cuba; it is the only state that borders both the Gulf of Mexico and the Atlantic Ocean. Spanning , Florida ranks 22nd in area among the 50 states, and with a population of over 21 million, it is the third-most populous. The state capital is Tallahassee, and the most populous city is Jacksonville. The Miami metropolitan area, with a population of almost 6.2 million, is the most populous urban area in Florida and the ninth-most populous in the United States; other urban conurbations with over one million people are Tampa Bay, Orlando, and Jacksonville. Various Native American groups have inhabited Florida for at least 14,000 years. In 1513, Spanish explorer Juan Ponce de León became the first k ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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