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Atopochilus Christyi
''Atopochilus christyi'' is a species of upside-down catfish endemic to the Democratic Republic of the Congo. It occurs in the Ituri, Itimbri and Kasai Rivers as well as the Kinsuka Rapids and Boyoma Falls Boyoma Falls, formerly known as Stanley Falls, is a series of seven cataracts, each no more than high, extending over more than along a curve of the Lualaba River between the river port towns of Ubundu and Kisangani (also known as Boyoma) in t .... This species grows to a length of SL. Etymology The catfish is named in honor of Cuthbert Christy (1863-1932), a physician (specializing in sleeping sickness), a zoologist, an explorer, and the Director of the Congo Museum in Tervuren, Belgium, who collected the type specimen. References christyi Freshwater fish of Africa Fish of the Democratic Republic of the Congo Endemic fauna of the Democratic Republic of the Congo Taxa named by George Albert Boulenger Fish described in 1920 {{mochokidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The IUCN Red List Of Threatened Species
The International Union for Conservation of Nature (IUCN) Red List of Threatened Species, also known as the IUCN Red List or Red Data Book, founded in 1964, is the world's most comprehensive inventory of the global conservation status of biological species. It uses a set of precise criteria to evaluate the extinction risk of thousands of species and subspecies. These criteria are relevant to all species and all regions of the world. With its strong scientific base, the IUCN Red List is recognized as the most authoritative guide to the status of biological diversity. A series of Regional Red Lists are produced by countries or organizations, which assess the risk of extinction to species within a political management unit. The aim of the IUCN Red List is to convey the urgency of conservation issues to the public and policy makers, as well as help the international community to reduce species extinction. According to IUCN the formally stated goals of the Red List are to provide ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Boyoma Falls
Boyoma Falls, formerly known as Stanley Falls, is a series of seven cataracts, each no more than high, extending over more than along a curve of the Lualaba River between the river port towns of Ubundu and Kisangani (also known as Boyoma) in the Orientale Province of the Democratic Republic of the Congo.Stanley, H.M., 1899, Through the Dark Continent, London: G. Newnes, Vol. One , Vol. Two The seven cataracts have a total drop of . They form the largest waterfall by volume of annual flow rate in the world, exceeding both the Niagara Falls and the Iguazu Falls. The two major cataracts are the first below Ubundu, forming a narrow and crooked stream that is hardly accessible, and the last that can be seen and visited from Kisangani. At the bottom of the rapids, the Lualaba is known as the Congo River. A 1m-gauge portage railway bypasses the series of rapids, connecting Kisangani and Ubundu. The last of the seven cataracts of the Boyoma Falls is also known as the Wagenia Falls ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endemic Fauna Of The Democratic Republic Of The Congo
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 s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fish Of The Democratic Republic Of The Congo
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] |
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] |
Atopochilus
''Atopochilus'' is a genus of upside-down catfishes native to Africa. Species There are currently seven recognized species in this genus: * ''Atopochilus chabanaudi'' Pellegrin, 1938 * '' Atopochilus christyi'' Boulenger, 1920 * '' Atopochilus macrocephalus'' Boulenger, 1906 * '' Atopochilus mandevillei'' Poll, 1959 * '' Atopochilus pachychilus'' Pellegrin, 1924 * '' Atopochilus savorgnani'' Sauvage, 1879 * '' Atopochilus vogti'' Pellegrin, 1922 Description ''Atopochilus'' species have their lips and barbels modified into a suckermouth In fish, a suckermouth is a ventrally-oriented (inferior) mouth adapted for grazing on algae and small organisms that grow on submerged objects. All Loricariidae possess a suckermouth as do the cypriniform algae eaters of the genus '' Gyrinocheilu .... ''Atopochilus'' species range in size from in length. References Mochokidae Fish of Africa Catfish genera Taxa named by Henri Émile Sauvage Freshwater fish genera {{ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cuthbert Christy
Cuthbert Christy (1863 – 29 May 1932) was an English doctor and zoologist who undertook extensive explorations of Central Africa during the first part of the 20th century. He was known for his work on sleeping sickness, and for the Christy Report on slavery in Liberia in the 1920s. Early years Cuthbert Christy was born in 1863, son of Robert Christy of Chelmsford. He was educated at Olivers Mount School, in Scarborough, North Yorkshire, then won a Mackenzie bursary to the University of Edinburgh. He graduated in 1892. He travelled widely in South America and the West Indies between 1892 and 1895. He was senior medical officer to the second battalion, West African Field Force in Northern Nigeria from 1898 to 1900. He was then appointed special medical officer for plague duty in Bombay, working in the Plague Laboratory in that city. African travels Christy became a highly skilled naturalist. In 1902 he was chosen as a member of a three-man British government commission to inve ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fish Measurement
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 measured from the tip of the snout to the posterior end of the last vertebra or to the posterior end of the midlateral portion of the hypural plate. Simply put, this measurement excludes the length of the caudal (tail) fin. * Total length (TL) is the length of a fish measured from the tip of the snout to the tip of the longer lobe of the caudal fin, usually measured with the lobes compressed along the midline. It is a straight-line measure, not measured over the curve of the body. Standard length measurements are used with Teleostei (most bony fish), while total length measurements are used with Myxini ( hagfish), Petromyzontiformes ( lampreys), and (usually) Elasmobranchii (shark Sharks are a group of elasmobranch fish chara ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IUCN
The International Union for Conservation of Nature (IUCN; officially International Union for Conservation of Nature and Natural Resources) is an international organization working in the field of nature conservation and sustainable use of natural resources. It is involved in data gathering and analysis, research, field projects, advocacy, and education. IUCN's mission is to "influence, encourage and assist societies throughout the world to conserve nature and to ensure that any use of natural resources is equitable and ecologically sustainable". Over the past decades, IUCN has widened its focus beyond conservation ecology and now incorporates issues related to sustainable development in its projects. IUCN does not itself aim to mobilize the public in support of nature conservation. It tries to influence the actions of governments, business and other stakeholders by providing information and advice and through building partnerships. The organization is best known to the wider ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kasai River
The Kasai River ( ; called Cassai in Angola) is a tributary (left side) of the Congo River, located in Central Africa. The river begins in central Angola and flows to the east until it reaches the border between Angola and the Democratic Republic of the Congo, where it turns north and serves as the border until it flows into the DRC. From Ilebo, between the confluences with Lulua river and Sankuru river, the Kasai river turns to a westerly direction. The lower stretch of the river from the confluence with Fimi river, is known as the Kwa(h) River, before it joins the Congo at Kwamouth northeast of Kinshasa. The Kasai basin consists mainly of equatorial rainforest areas, which provide an agricultural land in a region noted for its infertile, sandy soil. It is a tributary of Congo river and diamonds are found in it. Around 60% of diamonds in Belgium go from Kasai river for cutting and shaping. Exploration Henry Morton Stanley reached the confluence on 9 March 1877, calling the ri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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