|
Phractura Intermedia
''Phractura intermedia'' is a species of catfish in the genus ''Phractura''. It is found in coastal rivers in Africa from the Nyong River to the Kouilou River The Kouilou-Niari River—also spelled Kwilu, Kwila, or Kwil—is the most important river flowing to the Atlantic Ocean of the Republic of the Congo coast. Moreover, its entire drainage area is completely in the Republic of the Congo. The rive .... It has a length of 9.5 cm. References intermedia Freshwater fish of Africa Fish described in 1902 Taxa named by George Albert Boulenger {{Catfish-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
George Albert Boulenger
George Albert Boulenger (19 October 1858 – 23 November 1937) was a Belgian-British zoologist who described and gave scientific names to over 2,000 new animal species, chiefly fish, reptiles, and amphibians. Boulenger was also an active botanist during the last 30 years of his life, especially in the study of roses. Life Boulenger was born in Brussels, Belgium, the only son of Gustave Boulenger, a Belgian public notary, and Juliette Piérart, from Valenciennes. He graduated in 1876 from the Free University of Brussels with a degree in natural sciences, and worked for a while at the Royal Belgian Institute of Natural Sciences, Brussels, as an assistant naturalist studying amphibians, reptiles, and fishes. He also made frequent visits during this time to the '' Muséum national d'Histoire naturelle'' in Paris and the British Museum in London. In 1880, he was invited to work at the Natural History Museum, then a department of the British Museum, by Dr. Albert C. L. G. Gün ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Catfish
Catfish (or catfishes; order Siluriformes or Nematognathi) are a diverse group of ray-finned fish. Named for their prominent barbels, which resemble a cat's whiskers, catfish range in size and behavior from the three largest species alive, the Mekong giant catfish from Southeast Asia, the wels catfish of Eurasia, and the piraíba of South America, to detritivores (species that eat dead material on the bottom), and even to a tiny parasitic species commonly called the candiru, ''Vandellia cirrhosa''. Neither the armour-plated types nor the naked types have scales. Despite their name, not all catfish have prominent barbels or "whiskers". Members of the Siluriformes order are defined by features of the skull and swimbladder. Catfish are of considerable commercial importance; many of the larger species are farmed or fished for food. Many of the smaller species, particularly the genus '' Corydoras'', are important in the aquarium hobby. Many catfish are nocturnal, [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phractura
''Phractura'' is a genus of loach catfishes (order Siluriformes) that occur in Africa. ''Phractura'' species are elongated fish with a long caudal peduncle and bony scutes on the sides, back, and belly., this feature giving the genus its name from the Greek ''phraktos'', which means enclosed and ''oura'' which means tail. ''Phractura'' species are often associated with vegetation. The genus was originally given the name ''Peltura'' but this name was preoccupied by a genus of trilobites which the name ''Peltura'' had been applied to by Louis Agassiz in 1846. ''Phractura'' species, like other genera in Doumeinae, have a mouth modified into a suckermouth that allows it to clean to the objects and scrape the surface of the substrate. Species There are currently 13 recognized species in this genus: * '' Phractura ansorgii'' Boulenger, 1902 (African whiptailed catfish) * '' Phractura bovei'' Perugia, 1892 * '' Phractura brevicauda'' Boulenger, 1911 * '' Phractura clauseni'' Daget & ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nyong River
The Nyong (formerly german: Yong) is a river in Cameroon. The river flows approximately to empty into the Gulf of Guinea. Course The Nyong originates east of the town of Abong-Mbang, where the northern rain forest feeds it. The river's length is almost parallel to the lower reaches of the Sanaga River. Its mouth is in Petit Batanga, south-southwest of Edéa. In two places, Mbalmayo and Déhané, the river has huge rapids. The first of the river, between Abong-Mbang and Mbalmayo, are navigable for small boats from April to November. Hydrology The flow of the river as measured at Déhané in m³/s: Transport The town of Mbalmayo, which has a railhead In the UK, railheading refers to the practice of travelling further than necessary to reach a rail service, typically by car. The phenomenon is common among commuters seeking a more convenient journey. Reasons for railheading include, but are ..., lies on the north bank of this river. The towns of Akonolinga and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kouilou River
The Kouilou-Niari River—also spelled Kwilu, Kwila, or Kwil—is the most important river flowing to the Atlantic Ocean of the Republic of the Congo coast. Moreover, its entire drainage area is completely in the Republic of the Congo. The river is called the Kouilou River while flowing in the coastal region of the Kouilou till the Sounda gorges. Upstream from the gorges, its name is the Niari River and it flows through the Niari Valley. The river combines with the Louessé, the Loudima and the Bouenza River and eventually flows into the Atlantic Ocean. It covers about 560 km from its origin in the Batéké Plateau of the Congo to its mouth at the coast. The river has numerous waterfalls and is impassable from its mouth, which is of difficult access by multiple sandbars, formed primarily by the action of the Benguela current. The river is usable and boats are coming up to Kakamoéka. From Kakamoéka to Sounda, rapids and rocks are blocking access especially during d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
FishBase
FishBase is a global species database of fish species (specifically finfish). It is the largest and most extensively accessed online database on adult finfish on the web.Marine Fellow: Rainer Froese ''Pew Environment Group''. Over time it has "evolved into a dynamic and versatile ecological tool" that is widely cited in scholarly publications. FishBase provides comprehensive species data, including information on taxonomy, geographical distribution, biometrics and morphology, behaviour and habitats, e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Freshwater Fish Of Africa
Fresh water or freshwater is any naturally occurring liquid or frozen water containing low concentrations of dissolved salts and other total dissolved solids. Although the term specifically excludes seawater and brackish water, it does include non- salty mineral-rich waters such as chalybeate springs. Fresh water may encompass frozen and meltwater in ice sheets, ice caps, glaciers, snowfields and icebergs, natural precipitations such as rainfall, snowfall, hail/ sleet and graupel, and surface runoffs that form inland bodies of water such as wetlands, ponds, lakes, rivers, streams, as well as groundwater contained in aquifers, subterranean rivers and lakes. Fresh water is the water resource that is of the most and immediate use to humans. Water is critical to the survival of all living organisms. Many organisms can thrive on salt water, but the great majority of higher plants and most insects, amphibians, reptiles, mammals and birds need fresh water to survive. Fresh water is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fish Described In 1902
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] |
