|
Achondrostoma
''Achondrostoma'' is a genus of freshwater fish in the family Cyprinidae, the carps and minnows. It is endemic to the Iberian Peninsula.Robalo, J. I., et al. (2007)Re-examination and phylogeny of the genus ''Chondrostoma'' based on mitochondrial and nuclear data and the definition of 5 new genera. ''Molecular Phylogenetics and Evolution'' 42, 362–72. The genus was erected in 2007 for three fish separated from genus ''Chondrostoma'' on the basis of genetic evidence. Later that year a population of ''Iberochondrostoma lemmingii'' was separated on the basis of morphological and phylogenetic data and described as the fourth species of ''Achondrostoma''.Doadrio, I. and B. Elvira. (2007)A new species of the genus ''Achondrostoma'' Robalo, Almada, Levy & Doadrio, 2007 (Actinopterigii, Cyprinidae) from western Spain.''Graellsia'' 63(2), 295–304. Species Species include: * ''Achondrostoma arcasii'' ( Steindachner, 1866) * ''Achondrostoma occidentale'' (Robalo, et al., 2005) * ''Achond ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Achondrostoma
''Achondrostoma'' is a genus of freshwater fish in the family Cyprinidae, the carps and minnows. It is endemic to the Iberian Peninsula.Robalo, J. I., et al. (2007)Re-examination and phylogeny of the genus ''Chondrostoma'' based on mitochondrial and nuclear data and the definition of 5 new genera. ''Molecular Phylogenetics and Evolution'' 42, 362–72. The genus was erected in 2007 for three fish separated from genus ''Chondrostoma'' on the basis of genetic evidence. Later that year a population of ''Iberochondrostoma lemmingii'' was separated on the basis of morphological and phylogenetic data and described as the fourth species of ''Achondrostoma''.Doadrio, I. and B. Elvira. (2007)A new species of the genus ''Achondrostoma'' Robalo, Almada, Levy & Doadrio, 2007 (Actinopterigii, Cyprinidae) from western Spain.''Graellsia'' 63(2), 295–304. Species Species include: * ''Achondrostoma arcasii'' ( Steindachner, 1866) * ''Achondrostoma occidentale'' (Robalo, et al., 2005) * ''Achond ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Achondrostoma Oligolepis
''Achondrostoma oligolepis'' is a species of cyprinid fish. It is endemic to central and northern Portugal and known from between Limia and Tornada drainages, south of Douro. It occurs in the lower stretches of rivers and streams. It can grow to total length 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 ..., although it typically measures about TL. Taxonomy This species was first described as ''Leuciscus macrolepidotus'' by Franz Steindachner in 1866, but this name was preoccupied by '' Leuciscus macrolepidotus'' Ayres, 1854. Therefore, a new replacement name ''Chondrostoma oligolepis'' was given to it in 2005. A later revision placed the taxon in another genus, giving the current combination in use. References {{Taxonbar, from=Q1059961 Achondrostoma Endemic fish of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Achondrostoma Arcasii
''Achondrostoma arcasii'', termed the bermejuela, is a species of freshwater fish in the family Cyprinidae. It is found in the Douro River in northern Portugal and in rivers draining to both the Atlantic Ocean and the Mediterranean, including the Ebro River, in northern Spain where it is threatened by loss of habitat caused by the building of canals and the construction of dams, as well as by introduced predators and water pollution Water pollution (or aquatic pollution) is the contamination of water bodies, usually as a result of human activities, so that it negatively affects its uses. Water bodies include lakes, rivers, oceans, aquifers, reservoirs and groundwater. .... References * Achondrostoma Endemic fish of the Iberian Peninsula Fish described in 1866 {{Leuciscinae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Achondrostoma Occidentale
''Achondrostoma occidentale'' is a species of freshwater fish in the family Cyprinidae. This fish is from Portugal Portugal, officially the Portuguese Republic ( pt, República Portuguesa, links=yes ), is a country whose mainland is located on the Iberian Peninsula of Southwestern Europe, and whose territory also includes the Atlantic archipelagos of .... References Achondrostoma Fish described in 2005 Endemic fauna of Portugal Endemic fish of the Iberian Peninsula {{Leuciscinae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Achondrostoma Salmantinum
''Achondrostoma salmantinum'' is a species of freshwater fish in the family Cyprinidae. It is native to five tributaries in the Duero basin in the Province of Salamanca, Spain. It is normally found in clear, seasonal streams with sandy substrates, preferring the slower flowing stretches which have an abundant vegetation of aquatic macrophytes Aquatic plants are plants that have adapted to living in aquatic environments ( saltwater or freshwater). They are also referred to as hydrophytes or macrophytes to distinguish them from algae and other microphytes. A macrophyte is a plant that .... The species is common within its restricted range but it has a declining population and it is threatened mainly by falling water tables caused by the abstraction of water for agriculture and the construction if dams and weirs. References Achondrostoma Fish described in 2007 Cyprinid fish of Europe Endemic fish of the Iberian Peninsula {{Leuciscinae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cyprinidae
Cyprinidae is a family of freshwater fish commonly called the carp or minnow family. It includes the carps, the true minnows, and relatives like the barbs and barbels. Cyprinidae is the largest and most diverse fish family and the largest vertebrate animal family in general with about 3,000 species, of which only 1,270 remain extant, divided into about 370 genera. Cyprinids range from about 12 mm in size to the giant barb (''Catlocarpio siamensis''). By genus and species count, the family makes up more than two-thirds of the ostariophysian order Cypriniformes. The family name is derived from the Greek word ( 'carp'). Biology and ecology Cyprinids are stomachless fish with toothless jaws. Even so, food can be effectively chewed by the gill rakers of the specialized last gill bow. These pharyngeal teeth allow the fish to make chewing motions against a chewing plate formed by a bony process of the skull. The pharyngeal teeth are unique to each species and are used by scient ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chondrostoma
''Chondrostoma'' (from the Ancient Greek roots (''khondros'') 'lump' + (''stoma'') 'mouth' = 'lump-mouth') is a genus of ray-finned fish in the family Cyprinidae. They are commonly known as nases, although this term is also used locally to denote particular species, most frequently the common nase (''C. nasus''). The common name refers to the protruding upper jaw of these fishes; it is derived from the German term ''Nase'' 'nose'. Several species have a very restricted range. Some of these endemics are very rare nowadays, and at least one species is globally extinct. Systematics In 2007 it was determined that the presumed monophyletic group consisted of six at least partly independent lineages of Leuciscinae, meaning that the rasping feeding apparatus evolved more than once. It was proposed to split the genus in six in consequence: ''Achondrostoma'', ''Chondrostoma'', ''Iberochondrostoma'', ''Pseudochondrostoma'', '' Protochondrostoma'' and ''Parachondrostoma''. But at leas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iberochondrostoma Lemmingii
''Iberochondrostoma lemmingii'' ( pt, ruivaca; es, pardilla) is a species of ray-finned fish in the family Cyprinidae. It is found in Portugal and Spain. It lives in the middle and lower reaches of rivers with slow current. Until recently, ''I. lemmingii'' was placed in the genus ''Chondrostoma''. Fish that now are recognized as ''Achondrostoma salmantinum ''Achondrostoma salmantinum'' is a species of freshwater fish in the family Cyprinidae. It is native to five tributaries in the Duero basin in the Province of Salamanca, Spain. It is normally found in clear, seasonal streams with sandy substrates ...'' were earlier included in ''I. lemmingii''. The maximum length of ''I. lemmingii'' TL. References Iberochondrostoma Endemic fish of the Iberian Peninsula Fish described in 1866 Taxonomy articles created by Polbot {{Leuciscinae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus comes above species and below family (taxonomy), family. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus. :E.g. ''Panthera leo'' (lion) and ''Panthera onca'' (jaguar) are two species within the genus ''Panthera''. ''Panthera'' is a genus within the family Felidae. The composition of a genus is determined by taxonomy (biology), taxonomists. The standards for genus classification are not strictly codified, so different authorities often produce different classifications for genera. There are some general practices used, however, including the idea that a newly defined genus should fulfill these three criteria to be descriptively useful: # monophyly – all descendants ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Freshwater Fish
Freshwater fish are those that spend some or all of their lives in fresh water, such as rivers and lakes, with a salinity of less than 1.05%. These environments differ from marine conditions in many ways, especially the difference in levels of salinity. To survive fresh water, the fish need a range of physiology, physiological adaptations. 41.24% of all known species of fish are found in fresh water. This is primarily due to the rapid speciation that the scattered habitats make possible. When dealing with ponds and lakes, one might use the same basic models of speciation as when studying island biogeography. Physiology Freshwater fish differ physiologically from salt water fish in several respects. Their gills must be able to diffuse dissolved gases while keeping the salts in the body fluids inside. Their scales reduce water diffusion through the skin: freshwater fish that have lost too many scales will die. They also have well developed kidneys to reclaim salts from body flui ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endemism
Endemism is the state of a species being found 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 be also be referred to as an ''endemism'' or in scientific literature as an ''endemite''. For example '' Cytisus aeolicus'' is an endemite of the Italian flora. '' Adzharia renschi'' was once believed to be an endemite of the Caucasus, but it was later discovered to be a non-indigenous species from South America belonging to a different genus. The extreme opposite of an endemic species is one with a cosmopolitan distribution, having a global or widespread range. A rare alternative term for a species that is endemic is "precinctive", which applies to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iberian Peninsula
The Iberian Peninsula (), ** * Aragonese and Occitan: ''Peninsula Iberica'' ** ** * french: Péninsule Ibérique * mwl, Península Eibérica * eu, Iberiar penintsula also known as Iberia, is a peninsula in southwestern Europe, defining the westernmost edge of Eurasia. It is principally divided between Spain and Portugal, comprising most of their territory, as well as a small area of Southern France, Andorra, and Gibraltar. With an area of approximately , and a population of roughly 53 million, it is the second largest European peninsula by area, after the Scandinavian Peninsula. Name Greek name The word ''Iberia'' is a noun adapted from the Latin word "Hiberia" originating in the Ancient Greek word Ἰβηρία ('), used by Greek geographers under the rule of the Roman Empire to refer to what is known today in English as the Iberian Peninsula. At that time, the name did not describe a single geographical entity or a distinct population; the same name was us ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.jpg "Click for more on -> Endemism")
