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Barbatula Dgebuadzei
''Barbatula dgebuadzei'' is a species of ray-finned fish in the genus ''Barbatula'', which belongs to the family Nemacheilidae, the stone loaches. This loach is endemic Endemism is the state of a species being found only in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also foun ... to Mongolia where it occurs in the Baidrag-Gol River drainage, Gobi Lakes Valley. Footnotes * dgebuadzei Fish described in 2003 Taxa named by Artem Mikhailovich Prokofiev {{Nemacheilidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Artem Mikhailovich Prokofiev
Artem (, ) is a male given name of Greek origin, especially common in Ukraine and Russia. It is also used in Armenian with the variant of Ardem in Western Armenian. Artyom (Артём), the Russian version of the name, is often romanized as Artem although the letter " ё" gives a ending sound. Artem may refer to: * Artem Anisimov, Russian ice hockey player * Artem Bobukh, Ukrainian association football player * Artem Borodulin, Russian figure skater * Artem Bulyansky, Russian ice hockey player * Artem Butenin, Ukrainian association football player * Artem Chigvintsev, Russian-American dancer * Artem Dolgopyat (born 1997), Israeli artistic gymnast * Artem Dovbyk, Ukrainian professional association footballer * Artem Dzyuba, Russian professional footballer * Artem Fedetskyi, Ukrainian association football player * Artem Fedorchenko, Ukrainian association football player * Artem Gomelko, Belarusian association football player * Artem Grigoriev, Russian figure skater * Artyom Khad ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Species
A species () is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. It is the basic unit of Taxonomy (biology), classification and a taxonomic rank of an organism, as well as a unit of biodiversity. Other ways of defining species include their karyotype, DNA sequence, morphology (biology), morphology, behaviour, or ecological niche. In addition, palaeontologists use the concept of the chronospecies since fossil reproduction cannot be examined. The most recent rigorous estimate for the total number of species of eukaryotes is between 8 and 8.7 million. About 14% of these had been described by 2011. All species (except viruses) are given a binomial nomenclature, two-part name, a "binomen". The first part of a binomen is the name of a genus to which the species belongs. The second part is called the specific name (zoology), specific name or the specific ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ray-finned Fish
Actinopterygii (; ), members of which are known as ray-finned fish or actinopterygians, is a class of bony fish that comprise over 50% of living vertebrate species. They are so called because of their lightly built fins made of webbings of skin supported by radially extended thin bony spines called '' lepidotrichia'', as opposed to the bulkier, fleshy lobed fins of the sister clade Sarcopterygii (lobe-finned fish). Resembling folding fans, the actinopterygian fins can easily change shape and wetted area, providing superior thrust-to-weight ratios per movement compared to sarcopterygian and chondrichthyian fins. The fin rays attach directly to the proximal or basal skeletal elements, the radials, which represent the articulation between these fins and the internal skeleton (e.g., pelvic and pectoral girdles). The vast majority of actinopterygians are teleosts. By species count, they dominate the subphylum Vertebrata, and constitute nearly 99% of the over 30,000 extant ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus. :E.g. ''Panthera leo'' (lion) and ''Panthera onca'' (jaguar) are two species within the genus ''Panthera''. ''Panthera'' is a genus within the family Felidae. The composition of a genus is determined by taxonomy (biology), taxonomists. The standards for genus classification are not strictly codified, so different authorities often produce different classifications for genera. There are some general practices used, however, including the idea that a newly defined genus should fulfill these three criteria to be descriptively useful: # monophyly – all descendants of an ancestral taxon are grouped together (i.e. Phylogeneti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Barbatula
''Barbatula'' is a genus of fish in the family (biology), family Nemacheilidae native to Europe and Asia.Kottelat, M. (2012)Conspectus cobitidum: an inventory of the loaches of the world (Teleostei: Cypriniformes: Cobitoidei). ''Raffles Bulletin of Zoology, Suppl. No. 26: 1-199.'' They are found in streams, rivers and lakes, and the genus also includes Europe's only cavefish, which only was discovered in the Danube Sinkhole, Danube–Aachtopf system in Germany in 2015. ''Barbatula'' formerly included many more species, but these have been moved to other genera, notably ''Oxynoemacheilus''. Species These are the currently recognized species in this genus: * ''Barbatula altayensis'' Zhu Song-Quan, S. Q. Zhu, 1992 * ''Barbatula barbatula'' (Carl Linnaeus, Linnaeus, 1758) (Stone loach) * ''Barbatula cobdonensis'' (Aleksey Nikolaevich Gundriser, Gundriser 1973) * ''Barbatula compressirostris'' (Nikolai Arkadewich Warpachowski, Warpachowski, 1897) * ''Barbatula conilobus'' Artem M. P ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Family (biology)
Family (, : ) is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between order and genus. A family may be divided into subfamilies, which are intermediate ranks between the ranks of family and genus. The official family names are Latin in origin; however, popular names are often used: for example, walnut trees and hickory trees belong to the family Juglandaceae, but that family is commonly referred to as the "walnut family". The delineation of what constitutes a family—or whether a described family should be acknowledged—is established and decided upon by active taxonomists. There are not strict regulations for outlining or acknowledging a family, yet in the realm of plants, these classifications often rely on both the vegetative and reproductive characteristics of plant species. Taxonomists frequently hold varying perspectives on these descriptions, leading to a lack of widespread consensus within the scientific community ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nemacheilidae
The Nemacheilidae, or stone loaches, are a family of cypriniform fishes that inhabit stream environments, mostly in Eurasia, with one genus, ''Afronemacheilus'' found in Africa Africa is the world's second-largest and second-most populous continent after Asia. At about 30.3 million km2 (11.7 million square miles) including adjacent islands, it covers 20% of Earth's land area and 6% of its total surfac .... The family includes about 790 species. Genera The following are the described genera of the family: References Taxa named by Charles Tate Regan Cypriniformes families {{Nemacheilidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endemism
Endemism is the state of a species being found only in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsewhere. For example, the Cape sugarbird is found exclusively in southwestern South Africa and is therefore said to be ''endemic'' to that particular part of the world. An endemic species can also be referred to as an ''endemism'' or, in scientific literature, as an ''endemite''. Similarly, many species found in the Western ghats of India are examples of endemism. Endemism is an important concept in conservation biology for measuring biodiversity in a particular place and evaluating the risk of extinction for species. Endemism is also of interest in evolutionary biology, because it provides clues about how changes in the environment cause species to undergo range shifts (potentially expanding their range into a larger area or b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gobi Lakes Valley Desert Steppe
The Gobi Lakes Valley desert steppe ecoregion (WWF ID: PA1315) covers the narrow, flat valley in southwestern Mongolia that lies between the Khangai Mountains (to the north), and the Gobi-Altai Mountains (to the south). The region is known as the " Valley of the Lakes" because runoff from the mountains collect in lakes that have no outlet to the sea. Although the valley is a semi-arid desert steppe, it has areas of wetlands near the lakes that are important habit for water birds. Location and description The Gobi Lakes Valley is about west-to-east, and north-to south, at elevations of . The region is desert steppe, with rivers from the Khangai Mountains on the north providing most of the water to the lakes. On the south the region is bounded by the Gobi-Altai range, the easternmost extension of the Altai. A chain of shallow, saline lakes include Böön Tsagaan Lake (Lake Buuntsaagan), Taatsiin Tsagaan Lake, Adgiin Tsagaan Nuur, and Lake Orog. The lake's depths fluctuate with ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fish Described In 2003
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 fish wi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
