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Ponticola Gorlap
''Ponticola gorlap'', or the Caspian bighead goby, is a species of goby, a benthic fish native to the Caspian Sea basin. It is widespread in lower parts of many rivers in Iran, and also found in Azerbaijan and Turkmenistan.Brian W. CoadFreshwater Fishes of Iran(accessed 18 Feb 2015) In Russia, it occurred in the lowest part of the Volga River up to Astrakhan until 1977, but has thereafter spread upstream. In 2000 it was recorded as being established in the Ivankovo and Rybinsk Reservoirs in the Moscow region, and already invaded the Don Don, don or DON and variants may refer to: Places *County Donegal, Ireland, Chapman code DON *Don (river), a river in European Russia *Don River (other), several other rivers with the name *Don, Benin, a town in Benin *Don, Dang, a vill ... drainage by way of the Volga-Don Canal in 1972. This species occurs in sheltered environments, such as inshore fresh or brackish waters of estuaries, lagoons, lakes and large rivers, where it ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jörg Freyhof
Jörg Arthur Freyhof (born 4 November 1964 in Ludwigshafen) is a German ichthyologist specializing on Old World cypriniform fishes.Dr. Jörg Freyhof Leibniz Institute of Freshwater Ecology and Inland Fisheries Freyhof has worked at the Alexander Koenig Research Museum, Bonn, and since 2000 he has been employed at the Leibniz Institute of Freshwater Ecology and Inland Fisheries
Gottfried Wilhelm (von) Leibniz . ( – 14 November 1716) was a German polymath active as a mathematician, philosopher, scientis ...
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Ivankovo Reservoir
Ivankovo Reservoir or Ivankovskoye Reservoir (russian: link=no, Иваньковское водохранилище), informally known as the Moscow Sea, is the uppermost reservoir on the Volga, in Moscow and Tver Oblasts of Russia, located some north of Moscow. The dam of the reservoir is situated in the town of Dubna. The town of Konakovo is located on its southern coast. The reservoir is connected to the Moskva by the Moscow Canal, and is the principal fresh water source for the city of Moscow. Its area is , and the area of its drainage basin is . Ivankovo reservoir is covered by ice between mid-November and mid-April. The water level fluctuates during the year: It dramatically increases after the ice melting, and then stabilizes until January. The reservoir includes the lower course of the Shosha, its right tributary, the Lama, and the Soz. It is subdivided into three bays (''plyoses''): The Ivankovo Bay, in the northeast, downstream of the mouth of the Shosha; the Volga ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fish Of The Caspian Sea
Fish are aquatic, craniate, gill-bearing animals that lack limbs with digits. Included in this definition are the living hagfish, lampreys, and cartilaginous and bony fish as well as various extinct related groups. Approximately 95% of living fish species are ray-finned fish, belonging to the class Actinopterygii, with around 99% of those being teleosts. The earliest organisms that can be classified as fish were soft-bodied chordates that first appeared during the Cambrian period. Although they lacked a true spine, they possessed notochords which allowed them to be more agile than their invertebrate counterparts. Fish would continue to evolve through the Paleozoic era, diversifying into a wide variety of forms. Many fish of the Paleozoic developed external armor that protected them from predators. The first fish with jaws appeared in the Silurian period, after which many (such as sharks) became formidable marine predators rather than just the prey of arthropods. Most f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fish Of Russia
Fish are aquatic, craniate, gill-bearing animals that lack Limb (anatomy), limbs with Digit (anatomy), digits. Included in this definition are the living hagfish, lampreys, and Chondrichthyes, cartilaginous and bony fish as well as various extinct related groups. Approximately 95% of living fish species are ray-finned fish, belonging to the class Actinopterygii, with around 99% of those being teleosts. The earliest organisms that can be classified as fish were soft-bodied chordates that first appeared during the Cambrian period. Although they lacked a vertebrate, true spine, they possessed notochords which allowed them to be more agile than their invertebrate counterparts. Fish would continue to evolve through the Paleozoic era, diversifying into a wide variety of forms. Many fish of the Paleozoic developed placodermi, external armor that protected them from predators. The first fish with jaws appeared in the Silurian period, after which many (such as sharks) became formidabl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fish Of Asia
Fish are aquatic, craniate, gill-bearing animals that lack limbs with digits. Included in this definition are the living hagfish, lampreys, and cartilaginous and bony fish as well as various extinct related groups. Approximately 95% of living fish species are ray-finned fish, belonging to the class Actinopterygii, with around 99% of those being teleosts. The earliest organisms that can be classified as fish were soft-bodied chordates that first appeared during the Cambrian period. Although they lacked a true spine, they possessed notochords which allowed them to be more agile than their invertebrate counterparts. Fish would continue to evolve through the Paleozoic era, diversifying into a wide variety of forms. Many fish of the Paleozoic developed external armor that protected them from predators. The first fish with jaws appeared in the Silurian period, after which many (such as sharks) became formidable marine predators rather than just the prey of arthropods. Most fis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ponticola
''Ponticola'' is a genus of gobies native mostly to fresh waters of the Black Sea - Caspian Sea region in Eurasia. Some species occur in the brackish-water Black and Caspian seas themselves. It was considered to be part of the broader goby subfamily Benthophilinae, also endemic to the same region, although the 5th edition of ''Fishes of the World'' does not list any subfamilies in the Gobiidae. Originally, ''Ponticola'' was described as subgenus of '' Neogobius''. Species There are currently 16 recognized species in this genus: * '' Ponticola bathybius'' (Kessler, 1877) * '' Ponticola cephalargoides'' ( Pinchuk, 1976) * '' Ponticola constructor'' ( Nordmann, 1840) (Caucasian goby) * '' Ponticola cyrius'' (Kessler, 1874) * '' Ponticola eurycephalus'' (Kessler, 1874) (Mushroom goby) * '' Ponticola gorlap'' ( Iljin, 1949) (Caspian bighead goby) * '' Ponticola gymnotrachelus'' (Kessler, 1857) * '' Ponticola iljini'' ( Vasil'eva & Vasil'ev, 1996) (Eastern Caspian bighead goby) Vasil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fish Measurement
Fish measurement is the measuring of individual fish and various parts of their anatomies. These data are used in many areas of ichthyology, including taxonomy and fisheries biology. Overall length * Standard length (SL) is the length of a fish measured from the tip of the snout to the posterior end of the last vertebra or to the posterior end of the midlateral portion of the hypural plate. Simply put, this measurement excludes the length of the caudal (tail) fin. * Total length (TL) is the length of a fish measured from the tip of the snout to the tip of the longer lobe of the caudal fin, usually measured with the lobes compressed along the midline. It is a straight-line measure, not measured over the curve of the body. Standard length measurements are used with Teleostei (most bony fish), while total length measurements are used with Myxini (hagfish), Petromyzontiformes (lampreys), and (usually) Elasmobranchii (sharks and rays), as well as some other fishes. Total length meas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Don River (Russia)
The Don ( rus, Дон, p=don) is the fifth-longest river in Europe. Flowing from Central Russia to the Sea of Azov in Southern Russia, it is one of Russia's largest rivers and played an important role for traders from the Byzantine Empire. Its basin is between the Dnieper basin to the west, the lower Volga basin immediately to the east, and the Oka basin (tributary of the Volga) to the north. Native to much of the basin were Slavic nomads. The Don rises in the town of Novomoskovsk southeast of Tula (in turn south of Moscow), and flows 1,870 kilometres to the Sea of Azov. The river's upper half ribbles (meanders subtly) south; however, its lower half consists of a great eastern curve, including Voronezh, making its final stretch, an estuary, run west south-west. The main city on the river is Rostov-on-Don. Its main tributary is the Seversky Donets, centred on the mid-eastern end of Ukraine, thus the other country in the overall basin. To the east of a series of thr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rybinsk Reservoir
Rybinsk Reservoir ( rus, Ры́бинское водохрани́лище, r=Rybinskoye vodokhranilishche, p=ˈrɨbʲɪnskəɪ vədəxrɐˈnʲilʲɪɕə), informally called the Rybinsk Sea, is a water reservoir (water), reservoir on the Volga River and its tributary, tributaries Sheksna River, Sheksna and Mologa River, Mologa, formed by Rybinsk Hydroelectric Station dam, located in the Tver Oblast, Tver, Vologda Oblast, Vologda, and Yaroslavl Oblasts. At the time of its construction, it was the largest man-made body of water on Earth.Paul R. Josephson. ''Industrialized Nature: Brute Force Technology and the Transformation of the Natural World''. Island Press, 2002. . Page 31. It is the northernmost point of the Volga. The Volga-Baltic Waterway starts from there. The principal ports are Cherepovets in Vologda Oblast and Vesyegonsk in Tver Oblast. The construction of the dam in Rybinsk started in 1935. The filling of the reservoir started on April 14, 1941, and continued until 1947. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Astrakhan
Astrakhan ( rus, Астрахань, p=ˈastrəxənʲ) is the largest city and administrative centre of Astrakhan Oblast in Southern Russia. The city lies on two banks of the Volga, in the upper part of the Volga Delta, on eleven islands of the Caspian Depression, 60 miles (100 km) from the Caspian Sea, with a population of 475,629 residents at the 2021 Census. At an elevation of below sea level, it is the lowest city in Russia. Astrakhan was formerly the capital of the Khanate of Astrakhan (a remnant of the Golden Horde), and was located on the higher right bank of the Volga, 7 miles (11 km) from the present-day city. Situated on caravan and water routes, it developed from a village into a large trading centre, before being conquered by Timur in 1395 and captured by Ivan the Terrible in 1556. In 1558 it was moved to its present site. The oldest economic and cultural center of the Lower Volga, [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maurice Kottelat
Maurice Kottelat (born 16 July 1957 in Delémont, SwitzerlandCommissioners: Dr Maurice Kottelat International Commission on Zoological Nomenclature (accessed 2014)) is a specializing in Eurasian freshwater fishes. Kottelat obtained a License in Sciences at the in 1987(outdated link: [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
