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Dalmatian Barbelgudgeon
The Dalmatian barbelgudgeon (''Aulopyge huegelii'') is a European ray-finned fish species in the family Cyprinidae. It is the only member of the monotypic genus ''Aulopyge''. The genus name is derived from the ancient Greek ''aulós'' (αὐλός, "flute") + ''pygé'' (πῦγή, "behind, rump"), and thus means approximately "fluted tail-stem". The specific name honours the Austrian naturalist and diplomat Charles von Hügel. Though the genus was established in 1841, the species was only mentioned but not described at that time; that happened the following year, and in 1843, the frequently-seen misspelling ''huegeli'' was introduced.Crivelli (2006) Many fish databases use 1843 as the year of description. The IUCN Red List uses 1842 and also has an explanation of the confusiohere As its common name implies, it is a cyprinid looking somewhat intermediate between a barbel and a gudgeon. It is, however, only convergent to the typical gudgeon subfamily (Gobioninae) and in fact am ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Johann Jakob Heckel
Johann Jakob Heckel (23 January 1790 – 1 March 1857) was an Austrian taxidermist, zoologist, and ichthyologist from Mannheim in the Electoral Palatinate. Life Though not a formally trained biologist, he worked his way up through the ranks to eventually become the director of the Fish Collection at the Naturhistorisches Museum in Vienna. For the most part, he was not a traveler or explorer like many of the scientists of the time, he remained in Vienna, where he studied and catalogued specimens sent to him from the field. Among those who brought specimens to him were Karl Alexander Hügel, Joseph Russegger and Theodor Kotschy — involving collection activities in Kashmir, the Middle East and northeastern Africa that greatly enriched the Vienna museum. Fish were his specialty and he worked with many of the greatest ichthyologists of his time including Cuvier, Valenciennes, Bonaparte, Müller, and Troschel. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Convergent Evolution
Convergent evolution is the independent evolution of similar features in species of different periods or epochs in time. Convergent evolution creates analogous structures that have similar form or function but were not present in the last common ancestor of those groups. The cladistic term for the same phenomenon is homoplasy. The recurrent evolution of flight is a classic example, as flying insects, birds, pterosaurs, and bats have independently evolved the useful capacity of flight. Functionally similar features that have arisen through convergent evolution are ''analogous'', whereas '' homologous'' structures or traits have a common origin but can have dissimilar functions. Bird, bat, and pterosaur wings are analogous structures, but their forelimbs are homologous, sharing an ancestral state despite serving different functions. The opposite of convergence is divergent evolution, where related species evolve different traits. Convergent evolution is similar to parallel evo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lake Blidin
A lake is an area filled with water, localized in a basin, surrounded by land, and distinct from any river or other outlet that serves to feed or drain the lake. Lakes lie on land and are not part of the ocean, although, like the much larger oceans, they do form part of the Earth's water cycle. Lakes are distinct from lagoons, which are generally coastal parts of the ocean. Lakes are typically larger and deeper than ponds, which also lie on land, though there are no official or scientific definitions. Lakes can be contrasted with rivers or streams, which usually flow in a channel on land. Most lakes are fed and drained by rivers and streams. Natural lakes are generally found in mountainous areas, rift zones, and areas with ongoing glaciation. Other lakes are found in endorheic basins or along the courses of mature rivers, where a river channel has widened into a basin. Some parts of the world have many lakes formed by the chaotic drainage patterns left over from the last ice ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zrmanja River
Zrmanja (, it, Zermagna) is a river in southern Lika and northern Dalmatia, Croatia. It is long and its basin covers an area of . It was known to the ancient Romans as ''Tedanius''. The spring of Zrmanja is located in southern part of Lika under Postak - the southern peak of Pljesevica mountain, and close to south end of Velebit mountain. It is characteristic for its spring located on the bottom of very steep, almost 200 m high funnel shape rock called Misije. It flows southward through the narrow and long arable valley which encircles the southern end of Velebit through a 200-metre-deep canyon, and then turns westwards, reaches Obrovac, and after a few kilometers flows into the Adriatic Sea The Adriatic Sea () is a body of water separating the Italian Peninsula from the Balkan Peninsula. The Adriatic is the northernmost arm of the Mediterranean Sea, extending from the Strait of Otranto (where it connects to the Ionian Sea) to t ... in the bay named ''Novigradsko more ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Krka (Croatia)
Krka () is a river in Croatia's Dalmatia region, known for its numerous waterfalls. It is long and its basin covers an area of . It was known in ancient Greek language, ancient Greek as ''Kyrikos'', or may be also as ''Catarbates'' (literally "steeply falling") by the Ancient Greece, ancient Greeks, it was known to the Ancient Rome, ancient Romans as ''Titius'', ''Corcoras'', or ''Korkoras''. Course The river has its source near the border of Croatia with Bosnia and Herzegovina, at the foot of the Dinara mountain. After meandering through the Krčić canyon, it enters the Polje, karst valley of Knin through the Krčić waterfall of . At the foot of the second, called the Topoljski waterfall, of these is a spring in a cave with of passage. The river then flows through the valley, where it is fed by the Kosovčica on the left and the Orašnica and the Butižnica on the right, passing the Knin Fortress, Fortress of Knin between the last two on the way, and into the main canyon. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cetina
Cetina () is a river in southern Croatia. It has a length of and its basin covers an area of . From its source, Cetina descends from an elevation of above sea level to the Adriatic Sea. It is the most water-rich river in Dalmatia.Naklada Naprijed, ''The Croatian Adriatic Tourist Guide'', pg. 258, Zagreb (1999), Geography and geology Cetina has its source in the northwestern slopes of Dinara. Rising from a spring at Milasevo near a small village called Cetina, north of Vrlika, it flows to the Adriatic Sea. A large artificial lake begins near Vrlika, the Peruća Lake, which was created by a dam some downstream. Cetina then passes into the lower portion of the Sinj karst field, through the city of Sinj. After that it runs eastward, through the city of Trilj and then back westward around the Mosor mountain, before flowing into the Adriatic in the city of Omiš. Apart from its visible basin, the Cetina also receives a lot of water from the west Bosnian karst field via undergro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Livanjsko Field
Livanjsko polje (), located in Bosnia and Herzegovina, is the largest ''polje'' (karstic field) in the world. A typical example of karst polje encircled by tall peaks and mountain ranges, the field is characterized by many unique natural phenomenons and karstic features. Geography The field has an area of 45,868 hectare, 458.7 km², and an average width of 6 km. It is located at an average height of 720 m above sea level. The field is located in region of Tropolje, in the southwest of Bosnia and Herzegovina, and lies between the karstic mountains of Dinara and Kamešnica on the south, Tušnica mountain on the east, Cincar and Golija mountain on the north and Šator and Staretina mountain on the west. Buško Blato ''( Buško lake)'' lies to the southeast, and Ždralovac to the northwest. Ždralovac is a narrow corridor by which the Livno field is connected to the Grahovsko field, between the slopes of mountains Dinara, Kamešnica and Šator. Climate In ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stream
A stream is a continuous body of water, body of surface water Current (stream), flowing within the stream bed, bed and bank (geography), banks of a channel (geography), channel. Depending on its location or certain characteristics, a stream may be referred to by a variety of local or regional names. Long large streams are usually called rivers, while smaller, less voluminous and more intermittent river, intermittent streams are known as streamlets, brooks or creeks. The flow of a stream is controlled by three inputs – surface runoff (from precipitation or meltwater), daylighting (streams), daylighted subterranean river, subterranean water, and surfaced groundwater (Spring (hydrology), spring water). The surface and subterranean water are highly variable between periods of rainfall. Groundwater, on the other hand, has a relatively constant input and is controlled more by long-term patterns of precipitation. The stream encompasses surface, subsurface and groundwater fluxes th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Karst
Karst is a topography formed from the dissolution of soluble rocks such as limestone, dolomite, and gypsum. It is characterized by underground drainage systems with sinkholes and caves. It has also been documented for more weathering-resistant rocks, such as quartzite, given the right conditions. Subterranean drainage may limit surface water, with few to no rivers or lakes. However, in regions where the dissolved bedrock is covered (perhaps by debris) or confined by one or more superimposed non-soluble rock strata, distinctive karst features may occur only at subsurface levels and can be totally missing above ground. The study of ''paleokarst'' (buried karst in the stratigraphic column) is important in petroleum geology because as much as 50% of the world's hydrocarbon reserves are hosted in carbonate rock, and much of this is found in porous karst systems. Etymology The English word ''karst'' was borrowed from German in the late 19th century, which entered German much earlier ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Croatia
, image_flag = Flag of Croatia.svg , image_coat = Coat of arms of Croatia.svg , anthem = "Lijepa naša domovino"("Our Beautiful Homeland") , image_map = , map_caption = , capital = Zagreb , coordinates = , largest_city = capital , official_languages = Croatian , languages_type = Writing system , languages = Latin , ethnic_groups = , ethnic_groups_year = 2021 , religion = , religion_year = 2021 , demonym = , government_type = Unitary parliamentary republic , leader_title1 = President , leader_name1 = Zoran Milanović , leader_title2 = Prime Minister , leader_name2 = Andrej Plenković , leader_title3 = Speaker of Parliament , leader_name3 = Gordan Jandroković , legislature = Sabor , sovereignty_type ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bosnia And Herzegovina
Bosnia and Herzegovina ( sh, / , ), abbreviated BiH () or B&H, sometimes called Bosnia–Herzegovina and often known informally as Bosnia, is a country at the crossroads of south and southeast Europe, located in the Balkans. Bosnia and Herzegovina borders Serbia to the east, Montenegro to the southeast, and Croatia to the north and southwest. In the south it has a narrow coast on the Adriatic Sea within the Mediterranean, which is about long and surrounds the town of Neum. Bosnia, which is the inland region of the country, has a moderate continental climate with hot summers and cold, snowy winters. In the central and eastern regions of the country, the geography is mountainous, in the northwest it is moderately hilly, and in the northeast it is predominantly flat. Herzegovina, which is the smaller, southern region of the country, has a Mediterranean climate and is mostly mountainous. Sarajevo is the capital and the largest city of the country followed by Banja Luka, Tu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Luciobarbus
''Luciobarbus'' is a genus of ray-finned fishes in the family Cyprinidae. Its members are found in fresh and brackish waters of southern Europe, northern Africa, the wider Near East, the Aral and Caspian Seas, and rivers associated with these. Several species in the genus are threatened. Most species are fairly small to medium-sized cyprinids, but the genus also includes several members that can surpass in length and the largest, the mangar (''L. esocinus'') can reach . Systematics The type species is ''Luciobarbus esocinus'', for which the genus was established by Heckel in 1843. The type species scientific name essentially means "pike-like pike-barbel" (after the northern pike, ''Esox lucius''), though a more aliteral translation would be "pike-like wolf-barbel". Like many other cyprinids, the present genus was long included in ''Barbus''. It appears to be a very close relative of the typical barbels – which include that genus type species, ''Barbus barbus'' –, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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.jpg "Click for more on -> Karst")
