The Naab ( Czech : Nába ) is a river in Bavaria , Germany .
80-675: This 97.5 kilometer long river is a left tributary of the Danube . Its average discharge at the mouth is 49 m/s (1,700 cu ft/s). The Naab is formed by the confluence of the Waldnaab and the Haidenaab in Luhe-Wildenau , south of Weiden in der Oberpfalz . It flows generally south, through the towns Nabburg , Schwandorf and Burglengenfeld . It flows into the Danube near Regensburg . This article related to
160-736: A bay of the Black Sea when the sea rose to its present level. A sandy barrier blocked the Danube bay where the river initially built its delta. Upon filling the bay with sediment , the delta advanced outside this barrier-blocked estuary after 3500 BC, building several successive lobes: the St. George I (3500–1600 BC), the Sulina (1600–0 BC), the St. George II (0 BC–present) and the Chilia or Kilia (1600 AD–present). Several other internal lobes were constructed in
240-515: A hypothetical Thracian * Donaris . The Proto-Indo-European root of this presumed name is related to the Iranic word " don- "/" dan- ", while the supposed suffix -aris is encountered in the ancient name of the Ialomița River , Naparis , and in the unidentified Miliare river mentioned by Jordanes in his Getica . Gábor Vékony says that this hypothesis is not plausible, because
320-846: A mixture of reed roots, grass and soil, usually floating or anchored to the riverbed. As a rule, the reed surrounds the lakes and ponds, and slowly invades the water surface. This type of ecosystem is noted for its variety and large population of birds, some of them are very rare. The most important are the tufted duck ( Aythya fuligula ), red-crested pochard ( Netta rufina ), mallard ( Anas platyrhynchos ), greylag goose ( Anser anser ), pygmy cormorant ( Microcarbo pygmeus ), purple heron ( Ardea purpurea ), great white egret ( Egretta alba ), little egret ( Egretta garzetta ), Eurasian spoonbill ( Platalea leucorodia ), great white pelican ( Pelecanus onocrotalus ), Dalmatian pelican ( Pelecanus crispus ), mute swan ( Cygnus olor ), and glossy ibis ( Plegadis falcinellus ). A recent and welcomed newcomer
400-679: A river in Bavaria is a stub . You can help Misplaced Pages by expanding it . Danube The Danube ( / ˈ d æ n . j uː b / DAN -yoob ; see also other names ) is the second-longest river in Europe , after the Volga in Russia . It flows through Central and Southeastern Europe , from the Black Forest south into the Black Sea . A large and historically important river, it
480-577: A series of works to help navigation. In 1878, following the defeat of Ottoman Empire by Russia and Romania, the border between the two countries was set by the Kilia and Old Stambul Channels. In 1991, the Romanian part of the Danube Delta became part of UNESCO 's list of World Heritage Sites . Around 2,733km of the delta are strictly protected areas. In 1998, under UNESCO's Programme on Man and
560-522: A terrestrial environment is also present on the higher grounds of the continental levees , where xerophile ecosystems have developed. Between the aquatic and terrestrial environments is interposed a swampy, easily flooded strip of original flora and fauna, with means of adaptation to water or land, depending on the season or hydrological regime. At the contact between freshwater and sea water, some special physical, chemical and biological processes take place, which have led biologists to consider this area as
640-493: A very different ecosystem called beforedelta . Musura Gulf, north of Sulina, and Saint George Gulf are considered the most representative of this type of ecosystem. Situated on major migratory routes, and providing adequate conditions for nesting and hatching, the Danube Delta is a magnet for birds from six major ecoregions of the world, including the Mongolian, Arctic and Siberian. There are over 320 species of birds found in
720-535: Is 4,152 km (1,603 sq mi), of which 3,446 km (1,331 sq mi) are in Romania. If one includes the lagoons of Razim-Sinoe (1,015 km (392 sq mi) of which 865 km (334 sq mi) water surface), which are located south of the delta proper, but are related to it geologically and ecologically (their combined territory is part of the World Heritage Site),
800-608: Is also home to numerous diverse carp and sturgeon , as well as salmon and trout . A few species of euryhaline fish, such as European seabass , mullet , and eel , inhabit the Danube Delta and the lower portion of the river. Today the river carries its name from its source confluence in Donaueschingen , Germany , to its discharge into the Black Sea via the Danube Delta in Romania and Ukraine . The river
880-612: Is divided into three main parts, separated by "gates" where the river is forced to cut through mountainous sections: Mean annual discharge on the hydrological stations (period from 2000 to 2023); 1 - Reni , Isaccea ; 2 - Silistra ; 3 - Pristol ; 4 - Batina , Bezdan ; 5 - Nagymaros , Szob ; 6 - Bratislava , Wolfsthal ; 7 - Untergriesbach Multiannual average, minimum and maximum discharge (water period from 1876 to 2010) Simulated water and suspended sediment results from climate-driven decadal study (with STD through specific decade): P – Simulated average precipitation in
SECTION 10
#1732787405210960-604: Is estimated that the Danube upper course will one day disappear entirely in favor of the Rhine, an event called stream capturing . The hydrological parameters of Danube are regularly monitored in Croatia at Batina , Dalj , Vukovar and Ilok . The Danube basin was the site of some of the earliest human cultures. The Danubian Neolithic cultures include the Linear Pottery cultures of the mid-Danube basin. Many sites of
1040-466: Is in Romania. With the lagoons of Razim–Sinoe (1,015 km or 392 sq mi with 865 km or 334 sq mi water surface), located south of the main delta, the total area of the Danube Delta is 5,165 km (1,994 sq mi). The Razim–Sinoe lagoon complex is geologically and ecologically related to the delta proper; the combined territory is listed as a World Heritage Site . The modern Danube Delta began to form after 4000 BC in
1120-574: Is the pheasant ( Phasianus colchicus ). Among the mammals, there is the Eurasian otter ( Lutra lutra ), European mink ( Mustela lutreola ), little ermine ( Mustela erminea aestiva ), wild boar ( Sus scrofa ), and wild cat ( Felis silvestris ), in winter the European hare ( Lepus europaeus ) and, on the brink of disappearing from the delta, the wolf and the fox. During the Middle Ages,
1200-654: Is the second largest river delta in Europe, after the Volga Delta , and is the best preserved on the continent. Occurring where the Danube River empties into the Black Sea , most of the Danube Delta lies in Romania ( Tulcea County ), with a small part located in Ukraine ( Odesa Oblast ). Its approximate surface area is 4,152 square kilometres (1,603 square miles), of which 3,446 km (1,331 sq mi)
1280-686: Is to implement the Danube River Protection Convention by promoting and coordinating sustainable and equitable water management, including conservation, improvement, and rational use of waters and the implementation of the EU Water Framework Directive and the Danube Strategy . The Danube Commission is concerned with the maintenance and improvement of the river's navigation conditions. It was established in 1948 by seven countries bordering
1360-701: The Argonautica by Apollonius Rhodos (Argon. IV. 282). At the end of the Okeanos Potamos , is the holy island of Alba (Leuke, Pytho Nisi, Isle of Snakes ), sacred to the Pelasgian (and later, Greek) Apollo, greeting the sun rising in the east. Hecateus Abderitas refers to Apollo's island from the region of the Hyperboreans, in the Okeanos. It was on Leuke, in one version of his legend, that
1440-470: The Black Sea via the Danube Delta in Romania and Ukraine . Once a long-standing frontier of the Roman Empire , the river passes through or touches the borders of 10 countries. Its drainage basin extends into nine more (ten if Kosovo is included). In addition to the bordering countries (see above), the drainage basin includes parts of nine more countries: Bosnia and Herzegovina (4.6% of
1520-523: The Bystroye Canal . In 2022, there was a major heat wave in Europe. As a result, there was less water flowing in the rivers. As the water level decreased, a number of ship wrecks from World War II emerged in the Danube River. Many of the ships were from Nazi Germany 's Black Sea Fleet and had been scuttled to stop them from falling into enemy hands. The International Commission for
1600-479: The Caspian tiger ( Panthera tigris tigris ) was a resident across the steppes of Ukraine, including Danube Delta, and once, they were hunted to extinction and they're extirpated. The East Asian raccoon dog ( Nyctereutes procyonoides ), bizam/introduced muskrat ( Ondatra zibethica ), and to some extent South American nutria ( Myocastor coypus ), are recent species that have successfully adapted. The firm land of
1680-588: The Celtic ' danu ' or ' don ' (both Celtic gods), which itself derived from the Proto-Indo-European * deh₂nu . Other European river names from the same root include the Dunaj, Dzvina/ Daugava , Don , Donets , Dnieper , Dniestr , Dysna and Tana/Deatnu . In Rigvedic Sanskrit , danu (दनु) means "fluid, dewdrop" and danuja (दनु-ज) means "born from danu " or "born from dew-drops". In Avestan ,
SECTION 20
#17327874052101760-713: The Danubian Limes was the northeastern border of the Empire, with occasional interruptions such as the fall of the Danubian Limes in 259. The crossing of the Danube into Dacia was achieved by the Imperium Romanum , first in two battles in 102 and then in 106 after the construction of a bridge in 101 near the garrison town of Drobeta at the Iron Gate. This victory over Dacia under Decebalus enabled
1840-800: The Habsburg monarchy , Polish–Lithuanian Commonwealth , and Russian Empire for controlling the Danube ( Tuna in Turkish ), which became the northern border of the Ottoman Empire for centuries. Many of the Ottoman–Hungarian Wars (1366–1526) and Ottoman–Habsburg wars (1526–1791) were fought along the river. Danube Delta The Danube Delta ( Romanian : Delta Dunării , pronounced [ˈdelta ˈdunərij] ; Ukrainian : Дельта Дунаю , romanized : Del'ta Dunaju , pronounced [delʲˈtɑ dʊnɐˈju] )
1920-700: The International Court of Justice . Under the presidency of Kuchma , Ukraine had responded that Romania was only afraid of the competition that the new channel would bring, and continued working on the channel. Under the presidency of Yuschenko , who visited Romania in 2005, both sides agree that professionals should decide the fate of the channel. In the long run, Ukraine plans to build a navigation channel, if not through Bistroe Channel, then through another channel. Carpathians ( peaks ) Plains & Delta Islands Rivers ( Danube ) Lakes Black Sea A series of articles on control of
2000-455: The Pannonian steppe ecosystem of eastern Europe, with Mediterranean influences. As a young region in full process of consolidation, the Danube Delta represents a very favourable place for the development of highly diverse flora and fauna , unique in Europe, with numerous rare species. It hosts 23 natural ecosystems, but due to the extent of wetlands an aquatic environment is prevalent;
2080-595: The delta , Chilia , Sulina , and Sfântul Gheorghe (Saint George) . The last two branches form the Tulcea channel, which continues as a single body for several kilometers after the separation from the Chilia. At the mouths of each channel gradual formation of new land takes place, as the delta continues to expand. (Saint George) Chilia , in the north, the longest, youngest, and most vigorous, with two secondary internal deltas and one microdelta in full process of formation at its mouth (to Ukraine). Sulina ,
2160-750: The 15th century, the Danube Delta became part of the Ottoman Empire . In 1812, following the Russo-Turkish War , the borders of the Ottoman and Russian Empires were set by the Kilia and Old Stambul Channels of the Danube, and in 1829 by the St George Channel. The Treaty of Paris of 1856 , which ended the Crimean War , assigned the Danube Delta to the Ottoman Empire and established an international commission which undertook
2240-601: The Biosphere , the 6,264.03km of the Danube Delta were established as a biosphere reserve , shared by Romania and Ukraine. Historically, in Romania, part of the Danube Delta was marked as a reserve in 1938. In Ukraine, the Danube branch of the Black Sea State Reserve was established in 1973. In 1981, it was reorganized into the Natural Reserve "Danube Fluxes", and in 1998, it was extended into
2320-402: The Danube Delta a place of emigration, or transit at least. Very few of those born in the region stay there through adulthood; at the same time, the origins of its inhabitants vary widely, as people from many parts of Romania can be found in the delta. The total population has remained more or less constant throughout the 20th century; there were 12,000 inhabitants in the 1890s, and 14,000 before
2400-404: The Danube Delta. Vegetation of this ecosystem consists of the common reed ( Phragmites communis ) and, on near river banks, mace reed/cattail ( Typha latifolia , Typha angustifolia ), sedge ( Carex dioica , Carex stricta ), Dutch rush ( Scirpus radicans , Schoenoplectus lacustris ), and brook mint ( Mentha aquatica ). They provide ideal spawning and nesting grounds. The plaur are
2480-431: The Danube basin; T – Simulated average temperature in the Danube basin; Q – Simulated average discharge in the Danube River at delta; S – Simulated sediment load in the Danube River at delta ; Historical average flow to the present day; Measured and reconstructed average water flows from 1742. The reconstructed and observed streamflow (Q – m /s) at Ceatal Izmail for the 1742 to 2022: The land drained by
Naab - Misplaced Pages Continue
2560-452: The Danube biosphere reserve. Large-scale works began in the Danube Delta as early as the second half of the 19th century. First corrections of the Sulina arm began in 1862, and they continued throughout the 20th century. As a result, the length of the Sulina arm was reduced from 92 to 64 km, and its flow more than doubled, thus making it suitable for large-vessel navigation. Correcting the six large meanders on its course thereby reduced
2640-1040: The Danube extends into many other countries. Many Danubian tributaries are important rivers in their own right, navigable by barges and other shallow-draught boats. From its source to its outlet into the Black Sea, its main tributaries are (as they enter): 18. Tisza (entering near Titel ) 19. Sava (entering at Belgrade ) 20. Timiș (river) (entering at Pančevo ) 21. Great Morava (entering near Smederevo ) 22. Mlava (entering near Kostolac ) 23. Karaš (entering near Banatska Palanka ) 24. Jiu (entering at Bechet ) 25. Iskar (entering near Gigen ) 26. Olt (entering at Turnu Măgurele ) 27. Osam (entering near Nikopol, Bulgaria ) 28. Yantra (entering near Svishtov ) 29. Argeș (entering at Oltenița ) 30. Ialomița 31. Siret (entering near Galați ) 32. Prut (entering near Galați ) The Danube flows through many cities, including four national capitals (shown below in bold), more than any other river in
2720-641: The Danube has been a traditional trade route in Europe. Today, 2,415 km (1,501 mi) of its total length are navigable. The Danube is linked to the North Sea via the Rhine–Main–Danube Canal , connecting the Danube at Kelheim with the Main at Bamberg . The river is also an important source of hydropower and drinking water . The Danube river basin is home to such fish species as pike , zander , huchen , Wels catfish , burbot and tench . It
2800-643: The Danube was variously known as Danubius , Danuvius , Ister or Hister . The Latin name is masculine, as are all its Slavic names, except Slovene (the name of the Rhine is also masculine in Latin, most of the Slavic languages, as well as in German). The German Donau ( Early Modern German Donaw , Tonaw , Middle High German Tuonowe ) is feminine, as it has been re-interpreted as containing
2880-610: The Danube's, today subsurface rivers carry much water from the Danube to the Rhine. On many days in the summer, when the Danube carries little water, it completely oozes away noisily into these underground channels at two locations in the Swabian Alb, which are referred to as the Donauversickerung ( Danube Sink ). Most of this water resurfaces only 12 km (7.5 mi) south at the Aachtopf , Germany's wellspring with
2960-522: The Danube. Today the Commission include riparian and non-riparian states. Although the headwaters of the Danube are relatively small today, geologically, the Danube is much older than the Rhine , with which its catchment area competes in today's southern Germany. This has a few interesting geological complications. Since the Rhine is the only river rising in the Alps mountains which flows north towards
3040-463: The Delta was built in the last 1000 years. Finding that was like a eureka moment. At present, the delta suffers from a large sediment deficit , after the construction of dams on the Danube and its tributaries in the later half of the 20th century. However, construction of a dense network of shallow channels in the delta over the same period, a sedimentation enhancing strategy , attenuated the deficit on
3120-637: The Greeks borrowed the Istros form from the native Thracians. He proposes that the Romanian name is a loanword from a Turkic language ( Cuman or Pecheneg ). Classified as an international waterway , it originates in the town of Donaueschingen , in the Black Forest of Germany , at the confluence of the rivers Brigach and Breg . The Danube then flows southeast for about 2,730 km (1,700 mi), passing through four capital cities ( Vienna , Bratislava , Budapest , and Belgrade ) before emptying into
3200-468: The Letea levee, these exotic-looking forests grow especially in the depressions between the sand dunes, in small groves called hasmace . Fauna of this region include the meadow viper ( Vipera ursinii ), osprey ( Pandion haliaetus ), and Eurasian eagle owl ( Bubo bubo ). With an average population density of 2 people per km , the Danube Delta is one of the least inhabited regions of temperate Europe. On
3280-731: The North Sea, an invisible line beginning at Piz Lunghin divides large parts of southern Germany, which is sometimes referred to as the European Watershed . Before the last ice age in the Pleistocene , the Rhine started at the southwestern tip of the Black Forest, while the waters from the Alps that today feed the Rhine were carried east by the so-called Urdonau (original Danube). Parts of this ancient river's bed, which
Naab - Misplaced Pages Continue
3360-610: The Protection of the Danube River (ICPDR) is an organization that consists of 14 member states (Germany, Austria, the Czech Republic, Slovakia, Slovenia, Hungary, Croatia, Bosnia and Herzegovina, Serbia, Bulgaria, Romania, Moldova, Montenegro, and Ukraine) and the European Union . The commission, established in 1998, deals with the whole Danube river basin, which includes tributaries and groundwater resources. Its goal
3440-648: The Province of Dacia to be created, but in 271 it was abandoned by emperor Aurelian . Avars used the river as their southeastern border in the 6th century. Part of the rivers Danubius or Istros was also known as (together with the Black Sea) the Okeanos in ancient times, being called the Okeanos Potamos (Okeanos River). The lower Danube was also called the Keras Okeanoio (Gulf or Horn of Okeanos) in
3520-476: The Romanian side live about 20,000 people, of whom 4,600 live in the port of Sulina . . The rest of the population is scattered among 27 villages, of which only three, all situated marginally, had more than 500 people in 2002. The city of Tulcea , at the western edge of the delta, has a population of 92,000 (in 2002); it represents the node of the region and the gate to the delta. Its acute isolation and harsh conditions of living, based mainly on subsistence, made
3600-664: The Second World War. Romanians account for approximately 80% of the population, and Ukrainians for 10%. Other people living in the delta include ethnic minorities such as Greeks, Turks and Bulgarians (in 1992). Distinctive to the region, but very rare as an ethnic entity, are the Lipovans , descendants of the Orthodox Old Rite followers who fled from religious persecution in Russia during the 18th century. On
3680-471: The Serbian and the Romanian stretches of the Danube. However, the transgressions may not be considered acts of piracy, as defined according to the United Nations Convention on the Law of the Sea , but rather instances of "river robbery". On the other hand, media reports say the crews on transport ships often steal and sell their own cargo and then blame the plundering on "pirates", and the alleged attacks are not piracy but small-time contraband theft along
3760-420: The Ukrainian side, located at the northern edge of the delta, the town of Izmail has a population of 85,000, Kiliya a population of 21,800, and Vilkovo , the main center of the Lipovan community, a population of 9,300. Recorded history notes that the Dacians lived in the Danube Delta before it was conquered by the Romans . After later invasion by the Goths , the region changed hands many times. During
3840-515: The arms and bigger channels of the Danube. On the levees of Letea and Caraorman , mixed forests of oaks ( Quercus robur , and Quercus pedunculiflora ) with various other trees ( Fraxinus pallisiae , Ulmus foliaceae , Populus tremula ), shrubs ( Prunus spinosa , Crataegus monogyna , Rosa canina , and Berberis vulgaris , among others), and vines ( Vitis sylvestris , Hedera helix , Humulus lupulus , Periploca graeca , which reaches up to 25m) grow on sand dune areas. On
3920-488: The basin area), the Czech Republic (2.9%), Slovenia (2.0%), Montenegro (0.9%), Switzerland (0.2%), Italy (<0.15%), Poland (<0.1%), North Macedonia (<0.1%) and Albania (<0.1%). The total drainage basin is 801,463 km (309,447 sq mi) in area, and is home to 83 million people. The highest point of the drainage basin is the summit of Piz Bernina at the Italy–Switzerland border , at 4,049 m (13,284 ft). The Danube River Basin
4000-470: The breeding pattern of fish has been disrupted, and the flows in the main arms have increased, with serious consequences regarding the discharge of alluvia and the erosion of banks. Reed was intensively harvested during the Communist era. The regime had plans to transform the delta into a large agro-industrial zone. Although the first modern agricultural exploitation dates from 1939 (Ostrovul Tãtaru), only after 1960 were large areas drained and converted, to
4080-457: The central and thus the shortest arm, which consequently led to its extensive use for traffic and severe transformation. At its mouth is located the main port and a single settlement with urban characteristics of the Romanian part of the delta. Because of the alluvium deposited at its mouth, a channel gradually advancing into the sea (presently it has 10km) was built in order to protect navigation. Sfântul Gheorghe ( Saint George in English), in
SECTION 50
#17327874052104160-536: The delta during summer, of which 166 are hatching species and 159 are migratory. Over one million individual birds (including swans, ducks, and coots ) winter here. This comprises the arms of the Danube, and a series of its more important streamlets and channels. It is an environment rich in plankton , worms, molluscs , grubs , and sponges , with numerous species of fish, such as the carp , pike , pike perch , sheat-fish , and freshwater sturgeons ( sterlet , Vyza and Danube mackerel ). This environment includes
4240-633: The delta plain but increased erosion along the coast The Danube Delta is a low alluvial plain , mostly covered by wetlands and water. It consists of an intricate pattern of marshes, channels, streamlets and lakes. The average altitude is 0.52 m, with 20% of the territory below sea level, and more than half not exceeding one meter in altitude. Dunes on the most extensive strand plains of the delta (Letea and Caraorman strand plains) stand higher (12.4 m and 7 m respectively). The largest lakes are lakes Dranov (21.7km ), Roșu (14.5km ) and Gorgova (13.8km ). The Danube branches into three main distributaries into
4320-435: The delta used to be covered with large groves of willow trees, which have been cut down almost entirely and replaced with Canadian poplars. On the river banks kept in their natural state, small groves of willow trees ( Salix alba , Salix fragilis , Salix purpurea , Salix pentandra , and Salix triandra ) can still be found, mixed with white poplar ( Populus alba ). Occasionally, the willow trees form corridors along
4400-403: The detriment of the wetlands. In 1991, agricultural land in the delta surpassed 100,000 hectares, and more than a third of its surface has been affected by crop cultivation, forest plantation , or pisciculture (fish farming). As a result of these changes, along with the increasing pollution and eutrophication of the waters of the Danube, and decades of exploitation and poor fishing regulations,
4480-471: The distance to the Black Sea by 400 km (250 mi); the Rhine–Main–Danube Canal is about 171 km (106 mi), finished in 1992, linking the North Sea to the Black Sea. A Danube-Aegean canal has been proposed. Danube River cruise for sightseeing is popular, especially between Passau , Germany, to Budapest , Hungary. In 2010–12, shipping companies, especially from Ukraine, claimed that their vessels suffered from "regular pirate attacks " on
4560-450: The fish population has been visibly reduced. In 2004, Ukraine inaugurated work on the Bistroe Channel that would provide an additional navigable link from the Black Sea to the populous Ukrainian section of the Danube Delta. However, because of the negative impact which this new channel might have on the fragile ecosystem of the delta, the European Union advised Ukraine to shut down the works. Romanian officials threatened to sue Ukraine at
4640-415: The fish, the most important are Tench ( Tinca tinca ), common bream ( Abramis brama ), common rudd ( Scardinius erythropthalmus ), Prussian carp ( Carassius auratus gibelio ), wels catfish ( Silurus glanis ), European perch ( Perca fluviatilis ), and northern pike ( Esox lucius ). Reed plants and floating reed islands (called plaur in Romania ) are the most common and well-known components of
4720-477: The gorge) by the Iron Gate II Hydroelectric Power Station . On 13 April 2006, a record peak discharge at Iron Gate Dam reached 15,400 m /s (540,000 cu ft/s). There are three artificial waterways built on the Danube: the Danube-Tisa-Danube Canal (DTD) in the Banat and Bačka regions ( Vojvodina , northern province of Serbia); the 64 km (40 mi) Danube-Black Sea Canal , between Cernavodă and Constanța (Romania) finished in 1984, shortens
4800-416: The hero Achilles was buried (to this day, one of the mouths of the Danube is called Chilia). Old Romanian folk songs recount a white monastery on a white island with nine priests. Between the late 14th and late 19th centuries, the Ottoman Empire competed first with the Kingdom of Serbia , Second Bulgarian Empire , Kingdom of Hungary , Principality of Wallachia , Principality of Moldavia and later with
4880-423: The highest flow, an average of 8,500 L/s (300 cu ft/s), north of Lake Constance —thus feeding the Rhine. The European Water Divide applies only for those waters that pass beyond this point, and only during the days of the year when the Danube carries enough water to survive the sinkholes in the Donauversickerung. Since such large volumes of underground water erode much of the surrounding limestone, it
SECTION 60
#17327874052104960-419: The lakes and lagoons bordering the Danube Delta to the north (Chilia I and II) and toward the south (Dunavatz). Much of the alluvium in the delta and major expansion of its surface area in the form of lobes resulted from soil erosion associated with human clearing of forests in the Danube basin during the 1st and 2nd millennium. Geologist Liviu Giosan told The New York Times : Probably 40 percent of
5040-465: The lakes, and various ponds, streamlets and channels. It is characterized by a rich floating and submerse flora ( Myriophyllum , Ceratophyllum , Vallisneria , under the water; Nymphaea alba , Nuphar lutea , Trapa natans , Alisma plantago , floating plants with roots near the lakes' borders; and Salvinia natans , Stratiotes aloides , Spirogyra , floating plants without roots, having negative effect for aquatic bioproductivity ). Of
5120-431: The latter was further borrowed into Romanian as a regionalism ( Turlă ). The Thraco- Phrygian name was Matoas , "the bringer of luck". The Middle Mongolian name for the Danube was transliterated as Tho-na in 1829 by Jean-Pierre Abel-Rémusat . The modern languages spoken in the Danube basin all use names derived from the Latin name Danubius : Danube is an Old European river name derived from
5200-420: The length of the Sfântu Gheorghe branch from 108 to 70km, and its flow also increased somewhat. Both these increases were made to the detriment of the Chilia arm, which at present remains the most unspoiled arm of the main three. These corrections, as well as the digging of various secondary channels throughout the body of the delta, have had a serious impact on the ecosystem. Natural environments have been altered,
5280-409: The northern barbarian Thracian and Illyrian tribes by advancing from Macedonia as far as the Danube in 336 BCE. Under the Romans, the Danube formed the border of the Empire with the tribes to the north almost from its source to its mouth. At the same time, it was a route for the transport of troops and the supply of settlements downstream. From 37 CE to the reign of the Emperor Valentinian I (364–375)
5360-411: The river are four national capitals: Vienna , Bratislava , Budapest , and Belgrade . Its drainage basin amounts to 817,000 km (315,000 sq mi) and extends into nine more countries. The Danube's longest headstream Breg rises in Furtwangen im Schwarzwald , while the river carries its name from its source confluence in the palace park in Donaueschingen onwards. Since ancient times,
5440-465: The river has been part of a trans-European waterway from Rotterdam on the North Sea to Sulina on the Black Sea, a distance of 3,500 km (2,200 mi). In 1994 the Danube was declared one of ten Pan-European transport corridors , routes in Central and Eastern Europe that required major investment over the following ten to fifteen years. The amount of goods transported on the Danube increased to about 100 million tons in 1987. In 1999, transport on
5520-481: The river was made difficult by the NATO bombing of three bridges in Serbia during the Kosovo War . Clearance of the resulting debris was completed in 2002, and a temporary pontoon bridge that hampered navigation was removed in 2005. At the Iron Gate , the Danube flows through a gorge that forms part of the boundary between Serbia and Romania; it contains the Iron Gate I Hydroelectric Power Station dam, followed at about 60 km (37 mi) downstream (outside
5600-426: The river. The Danube Delta ( Romanian : Delta Dunării pronounced [ˈdelta ˈdunərij] ; Ukrainian : Дельта Дунаю , romanized : Del'ta Dunayu ) is the largest river delta in the European Union . The greater part of the Danube Delta lies in Romania (Tulcea county), while its northern part, on the left bank of the Chilia arm, is situated in Ukraine (Odesa Oblast). The approximate surface
5680-443: The river. Members include representatives from Austria, Bulgaria, Croatia, Germany, Hungary, Moldova, Slovakia, Romania, Russia, Ukraine, and Serbia; it meets regularly twice a year. It also convenes groups of experts to consider items provided for in the commission's working plans. The commission dates to the Paris Conferences of 1856 and 1921, which established for the first time an international regime to safeguard free navigation on
5760-653: The same word means "river". The Finnish word for Danube is Tonava , which is most likely derived from the name of the river in German , Donau . Its Sámi name Deatnu means "Great River". It is possible that dānu in Scythian as in Avestan was a generic word for "river": Dnieper and Dniestr , from Danapris and Danastius , are presumed to continue Scythian * dānu apara "far river" and * dānu nazdya- "near river", respectively. In Latin,
5840-644: The sixth-to-third millennium BCE Vinča culture (Vinča, Serbia), are sited along the Danube. The third millennium BCE Vučedol culture (from the Vučedol site near Vukovar , Croatia ) is famous for its ceramics. Darius the Great , king of Persia , crossed the river in the late 6th century BCE to invade European Scythia and to subdue the Scythians . Alexander the Great defeated the Triballian king Syrmus and
5920-599: The south, is the oldest and most sparsely populated. Its alluvium has led to the creation, beginning in 1897, of the Sacalin Islands , which today measures 19km in length. The Danube Delta is considred to be among Romania's sunniest and driest regions. The mean annual temperature is 11°C (−1°C in January and 22 °C in July), with mean precipitation between 400mm/year and 300mm/year. The Danube Delta falls within
6000-415: The suffix -ouwe "wetland". Romanian differs from other surrounding languages in designating the river with a feminine term, Dunărea ( IPA: [ˈdunəre̯a] ). This form was not inherited from Latin, although Romanian is a Romance language. To explain the loss of the Latin name, scholars who suppose that Romanian developed near the large river propose that the Romanian name descends from
6080-490: The total area of the Danube Delta reaches 5,165 km (1,994 sq mi). The Danube Delta is also the best-preserved river delta in Europe, a UNESCO World Heritage Site (since 1991) and a Ramsar Site . Its lakes and marshes support 45 freshwater fish species. Its wetlands support vast flocks of migratory birds of over 300 species, including the endangered pygmy cormorant ( Phalacrocorax pygmaeus ). These are threatened by rival canalization and drainage schemes such as
6160-504: The world. Ordered from the source to the mouth they are: The Danube is navigable by ocean ships from the Black Sea to Brăila in Romania (the maritime river sector), and further on by river ships to Kelheim , Bavaria , Germany; smaller craft can navigate further upstream to Ulm , Württemberg , Germany. About 60 of its tributaries are also navigable. Since the completion of the German Rhine–Main–Danube Canal in 1992,
6240-715: Was known to the ancient Greeks as the Istros ( Ἴστρος ) from a root possibly also encountered in the ancient name of the Dniester ( Danaster in Latin, Tiras in Greek) and akin to Iranic turos 'swift' and Sanskrit iṣiras ( इषिरस् ) 'swift', from the PIE * isro- , * sreu 'to flow'. In the Middle Ages, the Greek Tiras was borrowed into Italian as Tyrlo and into Turkic languages as Tyrla ;
6320-532: Was much larger than today's Danube, can still be seen in (now waterless) canyons in today's landscape of the Swabian Alb . After the Upper Rhine valley had been eroded, most waters from the Alps changed their direction and began feeding the Rhine. Today's upper Danube is thus an underfit stream . Since the Swabian Alb is largely shaped of porous limestone , and since the Rhine's level is much lower than
6400-455: Was once a frontier of the Roman Empire . In the 21st century, it connects ten European countries, running through their territories or marking a border. Originating in Germany , the Danube flows southeast for 2,850 km (1,770 mi), passing through or bordering Austria , Slovakia , Hungary , Croatia , Serbia , Romania , Bulgaria , Moldova , and Ukraine . Among the many cities on
#209790