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Gobio Sibiricus
''Gobio sibiricus'' is a species of gudgeon, a small freshwater ray-finned fish in the family Gobionidae. It was endemic to Mongolia, where it is found in Ob, Yenisei and Nura drainages. A recent study has shown that this species is also found in the upper reaches of the Amu Darya in Uzbekistan , image_flag = Flag of Uzbekistan.svg , image_coat = Emblem of Uzbekistan.svg , symbol_type = Emblem of Uzbekistan, Emblem , national_anthem = "State Anthem of Uzbekistan, State Anthem of the Republ .... References {{Taxonbar, from=Q5517850 sibiricus Fish described in 1936 Taxa named by Alexander Nikolsky ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alexander Nikolsky
Alexander Mikhailovich Nikolsky (Russian: Александр Михайлович Никольский; February 18, 1858 – December 8, 1942) was a Russian and Ukrainian zoologist born in Astrakhan. From 1877 to 1881, he studied at the University of St. Petersburg, earning his doctorate several years later in 1887. From 1881 to 1891, he took part in numerous expeditions to Siberia, the Caucasus, Persia, Japan, et al. In 1887 he became an associate professor in St. Petersburg, later becoming director of the herpetology department at the Zoological Museum of the Academy of Sciences (1895). In 1903 he relocated as a professor to the Kharkiv University. In 1919 he was elected a member at the Academy of Sciences of Ukraine. Among his written works were ''Herpetologia Caucasica'' (1913), and volumes on reptiles and amphibians that were part of the series "Fauna of Russia and Adjacent Countries". He is the taxonomic authority of 26 reptile species. The viper '' Vipera nikolskii' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gobio
''Gobio'' is a genus of typical gudgeons, ray-finned fish in the family Cyprinidae many of which are endemics of south-eastern Europe. Members of the genus are usually small fish, rarely longer than 10 cm. Many species previously in ''Gobio'' are now placed in the sister genus ''Romanogobio''. Species These are the currently recognized species in this genus: * '' Gobio acutipinnatus'' Men'shikov, 1939 * '' Gobio alverniae'' Kottelat & Persat 2005 (Auvergne gudgeon) * '' Gobio artvinicus'' Turan, Japoshvili, Aksu & Bektaş, 2016 * '' Gobio balcanicus'' Dimovski & Grupche, 1977 * '' Gobio baliki'' Turan, Kaya, Bayçelebi, Aksu & Bektaş, 2017 * '' Gobio brevicirris'' Fowler, 1976 (Don gudgeon) * '' Gobio bulgaricus'' Drensky, 1926 (Aegean gudgeon) * '' Gobio carpathicus'' Vladykov, 1925 (Carpathian gudgeon) * '' Gobio caucasicus'' S. N. Kamensky, 1901 (Colchic gudgeon) * '' Gobio coriparoides'' Nichols 1925 * '' Gobio cynocephalus'' Dybowski, 1869 (Siberian g ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Actinopterygii
Actinopterygii (; ), members of which are known as ray-finned fish or actinopterygians, is a class (biology), class of Osteichthyes, bony fish that comprise over 50% of living vertebrate species. They are so called because of their lightly built fish fin, fins made of webbings of skin supported by radially extended thin bony spine (zoology), spines called ''lepidotrichia'', as opposed to the bulkier, fleshy lobed fins of the sister taxon, 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 (anatomy), 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 domi ... [...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] |
Gobionidae
Gobioninae is a monophyletic family of Eurasian cyprinoid fishes. This is a species rich clade which, as a subfamily of the Cyprinidae was divided into five tribes: Gobionini, Pseudogobionini, Hemibarbini, Coreiini, and Sarcocheilichthyini. These subdivisions are not recognised by '' Eschmeyer's Catalog of Fishes''. To adapt to different masticatory operations, members of the Gobioninae developed various types of pharyngeal bones and teeth; some have intermediate pharyngeal bones with rows of diverse teeth (conical, compressed, and coarsely compressed), others have broad pharyngeal bones with a single row of molar teeth. Some Gobioninae have narrow pharyngeal bones with a row of extremely compressed teeth. Genera These genera are included in the subfamily Gobioninae according to ''Eschmeyer's Catalog of Fishes'': * '' Abbottina'' D. S. Jordan & Fowler, 1903 * '' Acanthogobio'' Herzenstein, 1892 * '' Belligobio'' D. S. Jordan & Hubbs, 1925 * '' Biwia'' D. S. Jordan & ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ob River
The Ob (; ) is a major river in Russia. It is in western Siberia, and with its tributary the Irtysh forms the world's seventh-longest river system, at . The Ob forms at the confluence of the Biya and Katun which have their origins in the Altai Mountains. It is the westernmost of the three great Siberian rivers that flow into the Arctic Ocean (the other two being the Yenisei and the Lena). Its flow is north-westward, then northward. The main city on its banks is Novosibirsk, the largest city in Siberia, and the third-largest city in Russia. It is where the Trans-Siberian Railway crosses the river. The Gulf of Ob is the world's longest estuary. Names The internationally known name of the river is based on the Russian name ''Обь'' (''Obʹ'', ). Possibly from Proto-Indo-Iranian '' *Hā́p-'', "river, water" (compare Vedic Sanskrit ''áp-'', Persian ''āb'', Tajik ''ob'', and Pashto ''obə'', "water"). Katz (1990) proposes Komi ''ob'' 'river' as the immediate source of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yenisei River
The Yenisey or Yenisei ( ; , ) is the list of rivers by length, fifth-longest river system in the world, and the largest to drain into the Arctic Ocean. Rising in Mungaragiyn-gol in Mongolia, it follows a northerly course through Lake Baikal and the Krasnoyarsk Dam before draining into the Yenisey Gulf in the Kara Sea. The Yenisey divides the Western Siberian Plain in the west from the Central Siberian Plateau to the east; it drains a large part of central Siberia. Its delta is formed between the Gyda Peninsula and the Taymyr Peninsula. It is the central one of three large Siberian rivers that flow into the Arctic Ocean (the other two being the Ob (river), Ob and the Lena River, Lena). The maximum depth of the Yenisey is and the average depth is . Geography The Yenisey proper, from the confluence of its source rivers the Great Yenisey and Little Yenisey at Kyzyl to its mouth in the Kara Sea, is long. From the source of its tributary the Selenga, it is long. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nura River
The Nura (, ''Nūra''; ) is a major watercourse of northeast-central Kazakhstan. It is long and drains an area of . Course The river rises in the Kyzyltas mountains, 4 km south of Qarakolboldy, which is a subrange of the Kazakh Uplands and flows initially north-northwestwards for about . It then turns to the west and flows in that direction for , then southwest for . The Nura turns north near Esengeldi for about , eventually turning southwest as it draws close to Astana near the river Irtysh. From there, it flows southwest for almost through a series of lakes, including Sholakshalkar and Korgalzhyn, finally ending in the endorheic Lake Tengiz. The river's largest tributaries are the Sherubainura, Ulken Kundyzdy, Akbastau and Ashchysu. It is heavily used for irrigation and municipal water supply. The average discharge at the mouth is . The Irtysh–Karaganda Canal crosses the Nura at , in what appears to be a tunnel. Some of the canals water is directed into the Nura ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amu Darya
The Amu Darya ( ),() also shortened to Amu and historically known as the Oxus ( ), is a major river in Central Asia, which flows through Tajikistan, Turkmenistan, Uzbekistan, and Afghanistan. Rising in the Pamir Mountains, north of the Hindu Kush, the Amu Darya is formed by the confluence of the Vakhsh River, Vakhsh and Panj River, Panj rivers, in the Tigrovaya Balka Nature Reserve on the border between Afghanistan and Tajikistan, and flows from there north-westwards into the South Aral Sea, southern remnants of the Aral Sea. In its upper course, the river forms part of Afghanistan's northern border with Tajikistan, Uzbekistan, and Turkmenistan. In ancient history, the river was regarded as the boundary of Greater Iran with Turan, which roughly corresponded to present-day Central Asia.B. SpulerĀmū Daryā in Encyclopædia Iranica, online ed., 2009 The Amu Darya has a flow of about 70 cubic kilometres per year on average. Names In classical antiquity, the river was known as the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Uzbekistan
, image_flag = Flag of Uzbekistan.svg , image_coat = Emblem of Uzbekistan.svg , symbol_type = Emblem of Uzbekistan, Emblem , national_anthem = "State Anthem of Uzbekistan, State Anthem of the Republic of Uzbekistan" , image_map = File:Uzbekistan (centered orthographic projection).svg , map_caption = Location of Uzbekistan (green) , capital = Tashkent , coordinates = , largest_city = capital , official_languages = Uzbek language, Uzbek , languages_type = Writing system, Official script , languages = Latin Script, Latin , recognized_languages = Karakalpak language, Karakalpak , ethnic_groups = , ethnic_groups_ref = , ethnic_groups_year = 2021 , religion_ref = , religion_year = 2020 , religion = , demonym = Uzbeks, Uzbek • Demographics of Uzbekistan, Uzbekistani , ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fish Described In 1936
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] |
