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Silver Dollar (fish)
Silver dollar is a common name given to a number of species of fishes, mostly in the genus ''Metynnis'', tropical fish belonging to the family Characidae which are closely related to piranha and pacu. Native to South America, these somewhat round-shaped silver fish are popular with fish-keeping hobbyists. The silver dollar is a peaceful schooling species that spends most of its time in the mid- to upper-level of the water. Its average lifespan is less than ten years but can live longer in captivity. A chin-layer, the adult fish will spawn around 2,000 eggs. This breeding occurs in soft, warm water in low light. Silver dollars natively live in a tropical climate in the sides of weedy rivers. They prefer water with a pH of 5–7, a water hardness of up to 15 dGH, and an ideal temperature range of 24–28 °C (75–82 °F). Their diet is almost exclusively vegetarian and in captivity they will often eat all the plants in a tank. They will also eat worms and small insects. Fish ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Animal
Animals are multicellular, eukaryotic organisms in the Kingdom (biology), biological kingdom Animalia. With few exceptions, animals Heterotroph, consume organic material, Cellular respiration#Aerobic respiration, breathe oxygen, are Motility, able to move, can Sexual reproduction, reproduce sexually, and go through an ontogenetic stage in which their body consists of a hollow sphere of Cell (biology), cells, the blastula, during Embryogenesis, embryonic development. Over 1.5 million Extant taxon, living animal species have been Species description, described—of which around 1 million are Insecta, insects—but it has been estimated there are over 7 million animal species in total. Animals range in length from to . They have Ecology, complex interactions with each other and their environments, forming intricate food webs. The scientific study of animals is known as zoology. Most living animal species are in Bilateria, a clade whose members have a Symmetry in biology#Bilate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fahrenheit
The Fahrenheit scale () is a temperature scale based on one proposed in 1724 by the physicist Daniel Gabriel Fahrenheit (1686–1736). It uses the degree Fahrenheit (symbol: °F) as the unit. Several accounts of how he originally defined his scale exist, but the original paper suggests the lower defining point, 0 °F, was established as the freezing temperature of a solution of brine made from a mixture of water, ice, and ammonium chloride (a salt). The other limit established was his best estimate of the average human body temperature, originally set at 90 °F, then 96 °F (about 2.6 °F less than the modern value due to a later redefinition of the scale). For much of the 20th century, the Fahrenheit scale was defined by two fixed points with a 180 °F separation: the temperature at which pure water freezes was defined as 32 °F and the boiling point of water was defined to be 212 °F, both at sea level and under standard atmospheric pressure. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Metynnis Luna
''Metynnis'' is a genus of serrasalmid fish from tropical and subtropical South America. They are herbivorous or omnivorous, and inhabit a wide range of freshwater habitats, ranging from rivers and streams (both fast- and slow-flowing), to floodplains, flooded forests, lakes, pools and reservoirs. They generally reach in standard length, although a few species may reach up to . The genus contains many of the species known as silver dollars in the aquarium trade. Species There are currently 15 recognized species in this genus: * '' Metynnis altidorsalis'' C. G. E. Ahl, 1923 * ''Metynnis argenteus'' C. G. E. Ahl, 1923 (silver dollar) * '' Metynnis cuiaba'' Pavanelli, Ota & Petry, 2009 * '' Metynnis fasciatus'' C. G. E. Ahl, 1931 * '' Metynnis guaporensis'' C. H. Eigenmann, 1915 * ''Metynnis hypsauchen'' ( J. P. Müller & Troschel, 1844) (silver dollar) * '' Metynnis lippincottianus'' (Cope, 1870) (spotted silver dollar) * '' Metynnis longipinnis'' Zarske & Géry, 2008 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Metynnis Lippincottianus
''Metynnis lippincottianus'', commonly known as the spotted silver dollar, is a species of serrasalmid native to the Brazilian Amazon and multiple rivers of French Guiana French Guiana ( or ; french: link=no, Guyane ; gcr, label=French Guianese Creole, Lagwiyann ) is an overseas departments and regions of France, overseas department/region and single territorial collectivity of France on the northern Atlantic .... An average ''M. lippincottianus'' can grow to a length of 13 cm. The fish is named in honor of Cope’s friend, James S. Lippincott (1819-1885), who made contributions to Meteorology, Agriculture and other studies. References Taxa named by Edward Drinker Cope Fish described in 1870 Serrasalmidae {{characiformes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Metynnis Hypsauchen
''Metynnis hypsauchen'' is a species of serrasalmid found in Amazon and Paraguay river basins, as well as rivers of the Guiana Shield. It is one of the fish known as the " silver dollar" in the aquarium An aquarium (plural: ''aquariums'' or ''aquaria'') is a vivarium of any size having at least one transparent side in which aquatic plants or animals are kept and displayed. Fishkeepers use aquaria to keep fish, invertebrates, amphibians, aq ... trade. It has frequently been confused with the very similar '' M. argenteus''.SeriouslyFish: Metynnis hypsauchen.' Retrieved 4 June 2014 It reaches a length of . References Serrasalmidae Fish of South America Fish of Bolivia Fish of Brazil Fish of Peru Taxa named by Johannes Peter Müller Taxa named by Franz Hermann Troschel Fish described in 1844 {{Characiformes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Metynnis Guaporensis
''Metynnis'' is a genus of serrasalmid fish from tropical and subtropical South America. They are herbivorous or omnivorous, and inhabit a wide range of freshwater habitats, ranging from rivers and streams (both fast- and slow-flowing), to floodplains, flooded forests, lakes, pools and reservoirs. They generally reach in standard length, although a few species may reach up to . The genus contains many of the species known as silver dollars in the aquarium trade. Species There are currently 15 recognized species in this genus: * '' Metynnis altidorsalis'' C. G. E. Ahl, 1923 * ''Metynnis argenteus'' C. G. E. Ahl, 1923 (silver dollar) * '' Metynnis cuiaba'' Pavanelli, Ota & Petry, 2009 * '' Metynnis fasciatus'' C. G. E. Ahl, 1931 * '' Metynnis guaporensis'' C. H. Eigenmann, 1915 * ''Metynnis hypsauchen'' ( J. P. Müller & Troschel, 1844) (silver dollar) * '' Metynnis lippincottianus'' (Cope, 1870) (spotted silver dollar) * ''Metynnis longipinnis'' Zarske & Géry, 2008 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Metynnis Fasciatus
''Metynnis'' is a genus of serrasalmid fish from tropical and subtropical South America. They are herbivorous or omnivorous, and inhabit a wide range of freshwater habitats, ranging from rivers and streams (both fast- and slow-flowing), to floodplains, flooded forests, lakes, pools and reservoirs. They generally reach in standard length, although a few species may reach up to . The genus contains many of the species known as silver dollars in the aquarium trade. Species There are currently 15 recognized species in this genus: * '' Metynnis altidorsalis'' C. G. E. Ahl, 1923 * ''Metynnis argenteus'' C. G. E. Ahl, 1923 (silver dollar) * '' Metynnis cuiaba'' Pavanelli, Ota & Petry, 2009 * '' Metynnis fasciatus'' C. G. E. Ahl, 1931 * ''Metynnis guaporensis'' C. H. Eigenmann, 1915 * ''Metynnis hypsauchen'' ( J. P. Müller & Troschel, 1844) (silver dollar) * '' Metynnis lippincottianus'' (Cope, 1870) (spotted silver dollar) * ''Metynnis longipinnis'' Zarske & Géry, 2008 ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Metynnis Argenteus
''Metynnis argenteus'' is a species of serrasalmid fish endemic to the Tapajós River Basin in Brazil. It is one of the species known in the aquarium trade as the " silver dollar". ''M. argenteus'' is generally considered the archetypal silver dollar, although it and the very similar '' M. hypsauchen'' frequently have been confused.SeriouslyFish: Metynnis argenteus.' Retrieved 4 June 2014 Identification Round-bodied and laterally compressed, under normal conditions ''M. argenteus'' is a uniform silver colour, sometimes showing vague red colouration in the fins and around the throat. Commonly seen for sale as juveniles at around two inches long, they are peaceful shoalers. Fully grown females in captivity can reach a length of between five and six inches while males tend to be marginally smaller. In good condition, females tend to be fuller in the belly than males, while males develop marginally longer fins as they grow older. During courtship and breeding, males develop two lar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Metynnis Altidorsalis
''Metynnis'' is a genus of serrasalmid fish from tropical and subtropical South America. They are herbivorous or omnivorous, and inhabit a wide range of freshwater habitats, ranging from rivers and streams (both fast- and slow-flowing), to floodplains, flooded forests, lakes, pools and reservoirs. They generally reach in standard length, although a few species may reach up to . The genus contains many of the species known as silver dollars in the aquarium trade. Species There are currently 15 recognized species in this genus: * '' Metynnis altidorsalis'' C. G. E. Ahl, 1923 * ''Metynnis argenteus'' C. G. E. Ahl, 1923 (silver dollar) * ''Metynnis cuiaba'' Pavanelli, Ota & Petry, 2009 * ''Metynnis fasciatus'' C. G. E. Ahl, 1931 * ''Metynnis guaporensis'' C. H. Eigenmann, 1915 * ''Metynnis hypsauchen'' ( J. P. Müller & Troschel, 1844) (silver dollar) * '' Metynnis lippincottianus'' (Cope, 1870) (spotted silver dollar) * ''Metynnis longipinnis'' Zarske & Géry, 2008 (si ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brine Shrimp
''Artemia'' is a genus of aquatic crustaceans also known as brine shrimp. It is the only genus in the family Artemiidae. The first historical record of the existence of ''Artemia'' dates back to the first half of the 10th century AD from Urmia Lake, Iran, with an example called by an Iranian geographer an "aquatic dog," although the first unambiguous record is the report and drawings made by Schlösser in 1757 of animals from Lymington, England. ''Artemia'' populations are found worldwide in inland saltwater lakes, but not in oceans. ''Artemia'' are able to avoid cohabiting with most types of predators, such as fish, by their ability to live in waters of very high salinity (up to 25%). The ability of the ''Artemia'' to produce dormant eggs, known as cysts, has led to extensive use of ''Artemia'' in aquaculture. The cysts may be stored indefinitely and hatched on demand to provide a convenient form of live feed for larval fish and crustaceans. Nauplii of the brine shrimp ''Artemia' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spirulina (dietary Supplement)
Spirulina is a biomass of cyanobacteria (blue-green algae) that can be consumed by humans and animals. The three species are '' Arthrospira platensis'', ''A. fusiformis'', and ''A. maxima''. Cultivated worldwide, ''Arthrospira'' is used as a dietary supplement or whole food. It is also used as a feed supplement in the aquaculture, aquarium, and poultry industries.Vonshak, A. (ed.). ''Spirulina platensis (Arthrospira): Physiology, Cell-biology and Biotechnology.'' London: Taylor & Francis, 1997. Etymology and ecology The species ''A. maxima'' and ''A. platensis'' were once classified in the genus ''Spirulina''. The common name, spirulina, refers to the dried biomass of ''A. platensis'', which belongs to photosynthetic bacteria that cover the groups Cyanobacteria and Prochlorophyta. Scientifically, a distinction exists between spirulina and the genus ''Arthrospira''. Species of ''Arthrospira'' have been isolated from alkaline brackish and saline waters in tropical and subtro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Metynnis Sp
''Metynnis'' is a genus of serrasalmid fish from tropical and subtropical South America. They are herbivorous or omnivorous, and inhabit a wide range of freshwater habitats, ranging from rivers and streams (both fast- and slow-flowing), to floodplains, flooded forests, lakes, pools and reservoirs. They generally reach in standard length, although a few species may reach up to . The genus contains many of the species known as silver dollars in the aquarium trade. Species There are currently 15 recognized species in this genus: * ''Metynnis altidorsalis'' C. G. E. Ahl, 1923 * ''Metynnis argenteus'' C. G. E. Ahl, 1923 (silver dollar) * ''Metynnis cuiaba'' Pavanelli, Ota & Petry, 2009 * ''Metynnis fasciatus'' C. G. E. Ahl, 1931 * ''Metynnis guaporensis'' C. H. Eigenmann, 1915 * ''Metynnis hypsauchen'' ( J. P. Müller & Troschel, 1844) (silver dollar) * ''Metynnis lippincottianus'' (Cope, 1870) (spotted silver dollar) * ''Metynnis longipinnis'' Zarske & Géry, 2008 (silver d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
