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Acantholingua Ohridana
''Salmo ohridanus'', also known by the local name as the ''belvica'' in North Macedonia or ''belushka'' in Albania, is a species of freshwater salmonid fish, endemic to Lake Ohrid in Albania and North Macedonia. ''Salmo ohridanus'' is a relatively small fish, usually shorter than and less than weight. It is a commercially exploited species subject to heavy fishing, and has been bred in fish farms for over 50 years. It has also been intentionally hybridized with another endemic species, the Ohrid trout ('' Salmo letnica''). It is threatened by the hybridization, degradation of water quality and overfishing; but the stock remains abundant. In earlier literature the belvica has variously been treated as belonging to suggested endemic genera ''Acantholingua'' and '' Salmothymus''. Genetic studies however indicate it is a good member of the genus ''Salmo'', and closest to the softmouth trout ''Salmo obtusirostris''. Nevertheless, it is quite distinct from the brown trout The br ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Franz Steindachner
Franz Steindachner (11 November 1834 in Vienna – 10 December 1919 in Vienna) was an Austrian zoologist, ichthyologist, and herpetologist. He published over 200 papers on fishes and over 50 papers on reptiles and amphibians. Steindachner described hundreds of new species of fish and dozens of new amphibians and reptiles. At least seven species of reptile have been named after him. Work and career Being interested in natural history, Steindachner took up the study of fossil fishes on the recommendation of his friend Eduard Suess (1831–1914). In 1860 he was appointed to the position of director of the fish collection at the Natural History Museum, Vienna, a position which had remained vacant since the death of Johann Jakob Heckel (1790–1857). (in German). Steindachner's reputation as an ichthyologist grew, and in 1868 he was invited by Louis Agassiz (1807–1873) to accept a position at the Museum of Comparative Zoology at Harvard University. Steindachner took part i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Albania
Albania ( ; or ), officially the Republic of Albania (), is a country in Southeast Europe. It is located in the Balkans, on the Adriatic Sea, Adriatic and Ionian Seas within the Mediterranean Sea, and shares land borders with Montenegro to the northwest, Kosovo to the northeast, North Macedonia to the east and Greece to the south. With an area of , it has a varied range of climatic, geological, hydrological and morphological conditions. Albania's landscapes range from rugged snow-capped mountains in the Accursed Mountains, Albanian Alps and the Korab, Central Mountain Range, Albania#Skanderbeg Mountains, Skanderbeg, Pindus and Ceraunian Mountains, to fertile lowland plains extending from the Albanian Adriatic Sea Coast, Adriatic and Albanian Ionian Sea Coast, Ionian seacoasts. Tirana is the capital and largest city in the country, followed by Durrës, Vlorë, and Shkodër. Albania was inhabited by several List of Illyrian peoples and tribes, Illyrian tribes, among them the A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Salmonid
Salmonidae (, ) is a family of ray-finned fish, the only extant member of the suborder Salmonoidei, consisting of 11 extant genera and over 200 species collectively known as "salmonids" or "salmonoids". The family includes salmon (both Atlantic and Pacific species), trout (both ocean-going and landlocked), char, graylings, freshwater whitefishes, taimens and lenoks, all coldwater mid-level predatory fish that inhabit the subarctic and cool temperate waters of the Northern Hemisphere. The Atlantic salmon (''Salmo salar''), whose Latin name became that of its genus ''Salmo'', is also the eponym of the family and order names. Salmonids have a relatively primitive appearance among teleost fish, with the pelvic fins being placed far back, and an adipose fin towards the rear of the back. They have slender bodies with rounded scales and forked tail fins, and their mouths contain a single row of sharp teeth. Although the smallest salmonid species is just long for adults, most salm ... [...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] |
Lake Ohrid
Lake Ohrid is a lake which straddles the mountainous border between the southwestern part of North Macedonia and eastern Albania. It is one of Europe's deepest and oldest lakes, with a unique aquatic ecosystem of worldwide importance, with more than 200 endemic species. North Macedonia's side of Lake Ohrid was declared a World Heritage Site by UNESCO in 1979, with the site being extended to also include the cultural and historic area of Ohrid in 1980. In 2010, NASA named one of Lakes of Titan, Titan's lakes after it. In 2014, the Ohrid-Prespa Transboundary Reserve between Albania and North Macedonia was added to UNESCO's World Network of Biosphere Reserves. Albania's side of Lake Ohrid was also designated UNESCO world heritage status in 2019. North Macedonia's portion was designated as a protected Ramsar site in 2021, passing all nine criteria for proclamation.Ministry of Environment and Physical Planning (2021)Ramsar Information Sheet: Lake Ohrid. Ramsar Secretariat, Gland, Swit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
North Macedonia
North Macedonia, officially the Republic of North Macedonia, is a landlocked country in Southeast Europe. It shares land borders with Greece to the south, Albania to the west, Bulgaria to the east, Kosovo to the northwest and Serbia to the north. It constitutes approximately the northern third of the larger geographical Macedonia (region), region of Macedonia. Skopje, the capital and largest city, is home to a quarter of the country's population of over 1.83 million. The majority of the residents are ethnic Macedonians (ethnic group), Macedonians, a South Slavs, South Slavic people. Albanians in North Macedonia, Albanians form a significant minority at around 25%, followed by Turks in North Macedonia, Turks, Romani people in North Macedonia, Roma, Serbs in North Macedonia, Serbs, Bosniaks in North Macedonia, Bosniaks, Aromanians in North Macedonia, Aromanians and a few other minorities. The region's history begins with the Paeonia (kingdom), kingdom of Paeonia. In the la ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ohrid Trout
Ohrid trout or the Lake Ohrid brown trout (''Salmo letnica'') is an endemic species of trout in Lake Ohrid and in its tributaries and outlet, the Black Drin river, in North Macedonia and Albania. Locally, the fish is known as охридска пастрмка (''ohridska pastrmka'') in Macedonian and ''Koran'' or ''Korani'' in Albanian. Taxonomy Ohrid trout is part of the brown trout complex, so its taxonomic status is controversial. It has, however, been deemed to be genetically sufficiently distinct to be regarded as a distinct species for conservation arguments. Subdivision of the Ohrid trout Within the Ohrid trout, up to four intralacustrine forms have been separated, which are treated as distinct species in the FishBase and by the IUCN. Morphological or molecular data so far do not support this division, though. These forms are characterized by different breeding areas and different breeding times, by which they are thought to be reproductively isolated from each other. T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Overfishing
Overfishing is the removal of a species of fish (i.e. fishing) from a body of water at a rate greater than that the species can replenish its population naturally (i.e. the overexploitation of the fishery's existing Fish stocks, fish stock), resulting in the species becoming increasingly underpopulated in that area. Overfishing can occur in water bodies of any sizes, such as ponds, wetlands, rivers, lakes or oceans, and can result in resource depletion, reduced biological growth rates and low biomass (ecology), biomass levels. Sustained overfishing can lead to critical depensation, where the fish population is no longer able to sustain itself. Some forms of overfishing, such as the Threatened sharks, overfishing of sharks, has led to the upset of entire marine ecosystems. Types of overfishing include growth overfishing, recruitment overfishing, and ecosystem overfishing. Overfishing not only causes negative impacts on biodiversity and ecosystem functioning, but also reduces fish pr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Salmothymus
''Salmothymus'' is a genus name of fish in the family Salmonidae, established for the Adriatic trout (''Salmothymus obrusirostris''). More commonly, however, the species is considered a member of the wider genus ''Salmo'', i.e. ''Salmo obtusirostris''.{{FishBase, genus=Salmo, species=obtusirostris, year=2009, month=September ''Salmothymus'' thus is a junior synonym In taxonomy, the scientific classification of living organisms, a synonym is an alternative scientific name for the accepted scientific name of a taxon. The botanical and zoological codes of nomenclature treat the concept of synonymy differently. ... of ''Salmo'', not in current use. References Salmonidae Obsolete vertebrate taxa Taxonomy articles created by Polbot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Salmo
''Salmo'' is a genus of ray-finned fish from the subfamily Salmoninae of family (biology), family Salmonidae, and is part of the tribe (biology), tribe Salmonini along with the sister genera ''Salvelinus'' and ''Salvethymus''. Almost all ''Salmo'' species are native only in the Old World (including most of Europe, coastal North Africa and part of West Asia around the Black Sea), the only exception being the Atlantic salmon (''Salmo salar''), which is also naturally found across the North Atlantic in eastern North America. The number of distinct species and subspecies in ''Salmo'' is a debated issue. The Atlantic salmon and brown trout (''Salmo trutta'') are widespread species and have been introduced species, introduced worldwide as pisciculture, farmed food fish or recreational fishing, recreational game fish, while most of the other ''Salmo'' species are narrowly distributed forms endemism, endemic to single drainage basin, watersheds. The name ''Salmo'' derives from the Latin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Salmo Obtusirostris
''Salmo obtusirostris'', commonly known as the softmouth trout, also known as the Adriatic trout, or Adriatic salmon, is a species of salmonid fish endemic to a handful rivers spilling into Adriatic in the Western Balkans, in southeastern Europe, namely in Bosnia and Herzegovina, Croatia and Montenegro. The scientific name has changed several times through history; synonyms include ''Thymallus microlepis'', ''Salmothymus obtusirostris'' and ''Salar obtusirostris''. This species spawns in the early spring and is an obligatory freshwater fish. They are an important game fish in the region. Distribution and subspecies ''Salmo obtusirostris'' is found naturally in four drainages of the Adriatic Sea, in Croatia, Bosnia and Herzegovina and Montenegro: the Neretva-Vrljika system, the Jadro, the Morača-Zeta system, and possibly the Krka river drainage around Knin although it is presumed extinct for some time now. In addition, sometimes during 1960's, it has been introduced from the Ja ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
