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Lepidarchus
The Adonis tetra (''Lepidarchus adonis'') also known as the jellybean tetra, is a very small African fish of the family Lepidarchidae. It is the monotypic, only member of its genus, and one of two members of its family. Range ''Lepidarchus adonis'' is native to freshwater habitats near the Atlantic coast in Ghana, Sierra Leone, and Côte d'Ivoire. Size The Adonis tetra can reach long, smaller than the neon tetra, and is one of the smallest fish normally kept in aquaria. Conservation status The IUCN red list has listed the Adonis tetra as being a Vulnerable species since 2010. There is considerable cause for concern because of the increasing levels of pollution in the waterways it inhabits. References External links * http://aquavisie.retry.org/Database/Aquariumfish/Lepidarchus_adonis.html Adonis Tetra Fact Sheet {{Taxonbar, from=Q366188 Lepidarchidae Tetras Freshwater fish of West Africa Fish described in 1966 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lepidarchidae
Lepidarchidae is a small family Family (from ) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). It forms the basis for social order. Ideally, families offer predictabili ... of Fresh water, freshwater fish in the order Characiformes. It contains only two threatened, Monotypic taxon, monotypic genera native to western Africa. The following genera are in this family: * ''Arnoldichthys'' George S. Myers, Myers, 1926 * ''Lepidarchus'' Tyson R. Roberts, Roberts, 1966 Both of these genera were previously placed in Alestidae, but moved to their own family in 2024 when this placement was found to be Paraphyly, paraphyletic, as these two genera are more closely related to the Hepsetidae than to alestids. Molecular phylogenetic estimates suggest that this family has an ancient divergence dating to the Late Cretaceous (Santonian to Campanian, about 84–77.5 mya). The divergence ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tetras
Tetra is the common name of many small freshwater characiform fishes. Tetras come from Africa, Central America, and South America, belonging to the biological families Characidae, Alestidae (the "African tetras"), Lepidarchidae, Lebiasinidae, Acestrorhynchidae, Stevardiidae, and Acestrorhamphidae. In the past, all of these families were placed in the Characidae. The Characidae and their allies are distinguished from other fish by the presence of a small adipose fin between the dorsal and caudal fins. Many of these, such as the neon tetra (''Paracheirodon innesi''), are brightly colored and easy to keep in captivity. Consequently, they are extremely popular for home aquaria. ''Tetra'' is no longer a taxonomic, phylogenetic term. It is short for ''Tetragonopterus'', a genus name formerly applied to many of these fish, which is Greek for "square-finned" (literally, four-sided-wing). Because of the popularity of tetras in the fishkeeping hobby, many unrelated fish are c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tyson R
Tyson is an English male given name of old French origin meaning 'high-spirited', 'fire'. It is from this that a surname arose 'son of Tyson'. Surname * Alan Tyson (1926–2000), British musicologist * Barbara Tyson (born 1964), Canadian actress * Bill Tyson, Irish writer and producer * Cade Tyson (born 2003), American basketball player * Cathy Tyson (born 1965), British actress * Charles Tyson (1885–1964), English footballer *Cicely Tyson (1924–2021), American actress * Donald J. Tyson (1930–2011), American business executive and billionaire * Edward Tyson (1650–1708), English scientist and physician * Frank Tyson (1930–2015), English cricketer * Grace Tyson (1881–1941), American Vaudeville performer and actress * Ian Tyson (1933–2022), Canadian singer-songwriter * Isaac Tyson (1792–1861), American mining industrialist * Jacob Tyson (1773–1848), American politician * James Tyson (1819–1898), Australian pastoralist * J. Anthony Tyson (born 1940), American phys ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monotypic
In biology, a monotypic taxon is a taxonomic group (taxon) that contains only one immediately subordinate taxon. A monotypic species is one that does not include subspecies or smaller, infraspecific taxa. In the case of genera, the term "unispecific" or "monospecific" is sometimes preferred. In botanical nomenclature, a monotypic genus is a genus in the special case where a genus and a single species are simultaneously described. Theoretical implications Monotypic taxa present several important theoretical challenges in biological classification. One key issue is known as "Gregg's Paradox": if a single species is the only member of multiple hierarchical levels (for example, being the only species in its genus, which is the only genus in its family), then each level needs a distinct definition to maintain logical structure. Otherwise, the different taxonomic ranks become effectively identical, which creates problems for organizing biological diversity in a hierarchical syste ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ghana
Ghana, officially the Republic of Ghana, is a country in West Africa. It is situated along the Gulf of Guinea and the Atlantic Ocean to the south, and shares borders with Côte d’Ivoire to the west, Burkina Faso to the north, and Togo to the east. Ghana covers an area of , spanning diverse ecologies, from coastal savannas to tropical rainforests. With nearly 35 million inhabitants, Ghana is the second-most populous country in West Africa. The capital and largest city is Accra; other significant cities include Tema, Kumasi, Sunyani, Ho, Cape Coast, Techiman, Tamale, and Sekondi-Takoradi. The earliest kingdoms to emerge in Ghana were Bonoman in the south and the Kingdom of Dagbon in the north, with Bonoman existing in the area during the 11th century. The Asante Empire and other Akan kingdoms in the south emerged over the centuries. Beginning in the 15th century, the Portuguese Empire, followed by other European powers, contested the area for trading r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sierra Leone
Sierra Leone, officially the Republic of Sierra Leone, is a country on the southwest coast of West Africa. It is bordered to the southeast by Liberia and by Guinea to the north. Sierra Leone's land area is . It has a tropical climate and environments ranging from savannas to rainforests. As of the 2023 census, Sierra Leone has a population of 8,460,512. Freetown is its capital and largest city. Sierra Leone is a presidential republic, with a unicameral parliament and a directly elected president. It is a secular state. Its Constitution of Sierra Leone, constitution provides for the separation of state and religion and freedom of conscience. Muslims constitute three-quarters of the population, and there is a significant Christian minority. Notably, religious tolerance is very high. Sierra Leone's current territorial configuration was established in two phases: in 1808, the coastal Sierra Leone Colony and Protectorate, Sierra Leone Colony was founded as a place to resettle retu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Côte D'Ivoire
Ivory Coast, also known as Côte d'Ivoire and officially the Republic of Côte d'Ivoire, is a country on the southern coast of West Africa. Its capital city of Yamoussoukro is located in the centre of the country, while its largest city and economic centre is the port city of Abidjan. It borders Guinea to the northwest, Liberia to the west, Mali to the northwest, Burkina Faso to the northeast, Ghana to the east, and the Atlantic Ocean's Gulf of Guinea to the south. With 31.5 million inhabitants in 2024, Ivory Coast is the third-most populous country in West Africa. Its official language is French, and indigenous languages are also widely used, including Bété, Baoulé, Dyula, Dan, Anyin, and Cebaara Senufo. In total, there are around 78 languages spoken in Ivory Coast. The country has a religiously diverse population, including numerous followers of Islam, Christianity, and traditional faiths often entailing animism. Before its colonisation, Ivory Coast was ho ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neon Tetra
The neon tetra (''Paracheirodon innesi'') is a freshwater fish of the characin family (family Characidae) of order Characiformes. The type species of its genus, it is native to blackwater and clearwater streams in the Amazon basin of South America. Its bright colouring makes the fish visible to conspecifics in the dark blackwater streams, and is also the main reason for its popularity among freshwater fish hobbyists, with neon tetras being one of the most widely kept tropical fish in the world. Range and habitat The neon tetra is found in the western and northern Amazon basin in southeastern Colombia, eastern Peru, and western Brazil. It lives in waters with a temperature between and pH 4–7.5. It has a preference for acidic blackwater streams, but also occurs in transparent clearwater streams. It is not found in the whitewater rivers. UN FAO considers ''P. innesi'' an introduced species in Singapore and the United States. FAO considers its introduction to Singapore t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IUCN Red List
The International Union for Conservation of Nature (IUCN) Red List of Threatened Species, also known as the IUCN Red List or Red Data Book, founded in 1964, is an inventory of the global conservation status and extinction risk of biological species. A series of Regional Red Lists, which assess the risk of extinction to species within a political management unit, are also produced by countries and organizations. The goals of the Red List are to provide scientifically based information on the status of species and subspecies at a global level, to draw attention to the magnitude and importance of threatened biodiversity, to influence national and international policy and decision-making, and to provide information to guide actions to conserve biological diversity. Major species assessors include BirdLife International, the Institute of Zoology (the research division of the Zoological Society of London), the World Conservation Monitoring Centre, and many Specialist Groups w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vulnerable Species
A vulnerable species is a species which has been Conservation status, categorized by the International Union for Conservation of Nature as being threatened species, threatened with extinction unless the circumstances that are threatened species, threatening its survival and reproduction improve. Vulnerability is mainly caused by habitat loss or destruction of the species' home. Vulnerable habitat or species are monitored and can become increasingly threatened. Some species listed as "vulnerable" may be common in captivity (animal), captivity, an example being the military macaw. In 2012 there were 5,196 animals and 6,789 plants classified as vulnerable, compared with 2,815 and 3,222, respectively, in 1998. Practices such as cryoconservation of animal genetic resources have been enforced in efforts to conserve vulnerable breeds of livestock specifically. Criteria The International Union for Conservation of Nature uses several criteria to enter species in this category. A taxon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Freshwater Fish Of West Africa
Fresh water or freshwater is any naturally occurring liquid or frozen water containing low concentrations of dissolved salts and other total dissolved solids. The term excludes seawater and brackish water, but it does include non-salty mineral-rich waters, such as chalybeate springs. Fresh water may encompass frozen and meltwater in ice sheets, ice caps, glaciers, snowfields and icebergs, natural precipitations such as rainfall, snowfall, hail/ sleet and graupel, and surface runoffs that form inland bodies of water such as wetlands, ponds, lakes, rivers, streams, as well as groundwater contained in aquifers, subterranean rivers and lakes. Water is critical to the survival of all living organisms. Many organisms can thrive on salt water, but the great majority of vascular plants and most insects, amphibians, reptiles, mammals and birds need fresh water to survive. Fresh water is the water resource that is of the most and immediate use to humans. Fresh water is not always pota ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fish Described In 1966
A fish (: fish or fishes) is an aquatic, anamniotic, gill-bearing vertebrate animal with swimming fins and a hard skull, but lacking limbs with digits. Fish can be grouped into the more basal jawless fish and the more common jawed fish, the latter including all living cartilaginous and bony fish, as well as the extinct placoderms and acanthodians. In a break to the long tradition of grouping all fish into a single class (Pisces), modern phylogenetics views fish as a paraphyletic group. Most fish are cold-blooded, their body temperature varying with the surrounding water, though some large active swimmers like white shark and tuna can hold a higher core temperature. Many fish can communicate acoustically with each other, such as during courtship displays. The study of fish is known as ichthyology. The earliest fish appeared during the Cambrian as small filter feeders; they continued to evolve through the Paleozoic, diversifying into many forms. The earliest fi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
