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Lake Dissoni
Lake Dissoni, also known as Lake Soden, is a small lake in the Cameroon line, volcanic chain in the Southwest Region, Cameroon, Southwest Region of Cameroon. This volcanic lake has diameter of about and is at the southeastern foot of the Rumpi Hills. There are only three fish species in the lake, but all these are Endemism, endemic: A Poeciliidae, poeciliid (''Procatopus lacustris'', though probably a Synonym (taxonomy), synonym of the more widespread ''Procatopus similis, P. similis''), an Undescribed taxon, undescribed catfish (''Clarias'' sp.) and an undescribed barb (''Barbus'' sp.). The Atyidae, atyid shrimp ''Caridina sodenensis'' is also endemic to the lake.Richard, J., and P.F. Clark (2009). ''African Caridina (Crustacea: Decapoda: Caridea: Atyidae): redescriptions of C. africana Kingsley, 1882, C. togoensis Hilgendorf, 1893, C. natalensis Bouvier, 1925 and C. roubaudi Bouvier, 1925 with descriptions of 14 new species.'' Zootaxa 1995: 1-75 See also * Lake Barombi Koto * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Volcanic Crater Lake
A volcanic crater lake is a lake in a crater that was formed by explosive activity or a collapse during a volcanic eruption. Formation Lakes in calderas fill large craters formed by the collapse of a volcano during an eruption. Lakes in maars fill medium-sized craters where an eruption deposited debris around a vent. Crater lakes form as the created depression, within the crater rim, is filled by water. The water may come from precipitation, groundwater circulation (often hydrothermal fluids in the case of volcanic craters) or melted ice. Its level rises until an equilibrium is reached between the rates of incoming and outgoing water. Sources of water loss singly or together may include evaporation, subsurface seepage, and, in places, surface leakage or overflow when the lake level reaches the lowest point on its rim. At such a saddle location, the upper portion of the lake is contained only by its adjacent natural volcanic dam; continued leakage through or surface outflow ac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clarias
''Clarias'' is a genus of catfishes (order Siluriformes) of the family Clariidae, the airbreathing catfishes. The name is derived from the Greek ''chlaros'', which means lively, in reference to the ability of the fish to live for a long time out of water. Taxonomy ''Clarias'' has been found to be paraphyletic. A species of ''Heterobranchus'' (''H. longifilis'') clusters deeply inside the ''Clarias'' group. Distribution They are found in inland waters throughout much of the Old World, and are one of the most widespread catfish genera in the world. The genus is found in Southeast Asia and East Asia westwards through India and the Asia Minor to Africa. The diversity of these catfishes is highest in Africa. Some (notably the walking catfish) have become pest species where they have been accidentally introduced, and particularly in Cuba, where their introduction was intentional. Description ''Clarias'' species are recognized by their long-based dorsal and anal fins, which give them a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Volcanic Crater Lakes
A volcano is a rupture in the crust of a planetary-mass object, such as Earth, that allows hot lava, volcanic ash, and gases to escape from a magma chamber below the surface. On Earth, volcanoes are most often found where tectonic plates are diverging or converging, and most are found underwater. For example, a mid-ocean ridge, such as the Mid-Atlantic Ridge, has volcanoes caused by divergent tectonic plates whereas the Pacific Ring of Fire has volcanoes caused by convergent tectonic plates. Volcanoes can also form where there is stretching and thinning of the crust's plates, such as in the East African Rift and the Wells Gray-Clearwater volcanic field and Rio Grande rift in North America. Volcanism away from plate boundaries has been postulated to arise from upwelling diapirs from the core–mantle boundary, deep in the Earth. This results in hotspot volcanism, of which the Hawaiian hotspot is an example. Volcanoes are usually not created where two tectonic plates slide pa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Communes Of Cameroon
The Arrondissements of Cameroon are the third-level units of administration in Cameroon. The arrondissements are organised by divisions and sub divisions of each province (now Regions). As of 2005 (and since 1996) there are 2 urban communities (Douala and Yaoundé) divided into 11 urban districts (5 in Douala and 6 in Yaounde), 9 towns with special status (Nkongsamba, Bafoussam, Bamenda, Limbe, Edéa, Ebolowa, Garoua, Maroua and Kumba Kumba is a metropolitan city in the Meme department, Southwest Region, Western Cameroon, referred as "K-town" in local slang. Kumba is the most developed and largest city in the Meme Department and has attracted people from the local villag ...), 11 urban communes and 305 rural communes. The councils are headed by mayors and municipal councillors who are elected. The councils have a responsibility in principle for the management of local affairs under the supervision of the State. Under Cameroonian law, the councils provide and re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lake Oku
Lake Oku is a crater lake on the Bamenda Plateau in the Northwest Region of Cameroon. It is located at on Mount Oku, and is completely surrounded by cloud forest. The lake lies in an explosion crater formed in the last phase of development of the Oku Massif, a large volcanic field with a diameter of about . Mount Oku is a stratovolcano that rises to . The lake is the subject of many myths among the local people. The lake is the only known habitat of the Lake Oku Clawed Frog. The surrounding Kilum-Ijim Forest is a nature reserve, set up by BirdLife International, and home to many rare species. See also * Lake Barombi Koto * Lake Barombi Mbo * Lake Bermin * Lake Dissoni * Lake Ejagham References {{reflist, 1, refs= {{cite journal , editor-last=Doherty-Bone , editor-first=Thomas , date=2014 , title=A Working Conservation Action Plan for Lake Oku , url=https://www.researchgate.net/publication/269104431 , doi=10.13140/2.1.4988.5760 , accessdate=2018-10-31, last1=Doherty ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lake Ejagham
Lake Ejagham is a small lake near Eyumodjock in the Southwest Region, Cameroon, Southwest Region of Cameroon. Unlike many other lakes in the region, it is not a volcanic lake, but is likely a solution basin formed by groundwater during the last glacial period, last Ice Age. This highly isolated lake is roughly oval in shape, lacks an inflow, but has an outflow into the Munaya River (part of the Cross River (Nigeria), Cross River system).Schliewen, U.K., Tautz, D., and Pääbo, S. (1994). ''Sympatric speciation suggested by monophyly of crater lake cichlids.'' Nature (journal), Nature 368(6472): 629-632. The outflow is impassable to most fishes because of a waterfall. Biology Despite its very small size, it supports 7 Endemism, endemic species of coptodonine and oreochromine cichlid fishes (''Coptodon deckerti'', ''Coptodon ejagham, C. ejagham'', ''Coptodon fusiforme, C. fusiforme'', ''Coptodon nigrans, C. nigrans'', ''Sarotherodon lamprechti'', and ''Sarotherodon knauerae, S. knaue ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lake Bermin
Lake Bermin (sometimes spelled Bemin or Beme) is a small lake in the volcanic chain in the Southwest Region of Cameroon. It is a volcanic lake with a diameter of about Martin; Cutler; Friel; Touokong; Coop; and Wainwright (2015). Complex histories of repeated gene flow in Cameroon crater lake cichlids cast doubt on one of the clearest examples of sympatric speciation. Evolution 69-6: 1406–1422. and a crater rim that rises to a height of about .Dickinson, C. (2005). The Tilapia of Lake Bernin, Cameroon.'' Modern Aquarium -Greater City A.S. (NY): 15–16 This highly isolated lake is roughly circular in shape, lacks an inflow, but has an outflow into the Cross River system.Schliewen, U.K., Tautz, D., and Pääbo, S. (1994). ''Sympatric speciation suggested by monophyly of crater lake cichlids.'' Nature 368(6472): 629–632. Biology Despite its very small size, it supports nine endemic species of coptodonine cichlid fishes ('' C. bakossiorum'', '' C. bemini'', '' C. bythobates'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lake Barombi Mbo
Lake Barombi Mbo or Barombi-ma-Mbu is a lake near Kumba in the Southwest Region of Cameroon. It is located in the Cameroon volcanic chain, and is the largest volcanic lake in this region. It is one of the oldest radiocarbon-dated lakes in Africa, with the youngest lava flow in it being about one million years old. On old colonial maps the area was known as Elefanten Sea (Elephant Lake), but the elephants living in the area were extirpated due to ivory trading. Biology Until now, 15 species of fishes have been recorded from the lake.Freshwater Ecoregions of the World (2008). Western Equatorial Crater Lakes.'' Among others, this includes ''Labeobarbus batesii'', a member of the '' Fundulopanchax mirabilis'' group, and the endemic catfish '' Clarias maclareni''. Perhaps most noteworthy are the 11 species of cichlids that are endemic to the lake ('' Konia spp.'', ''Stomatepia spp.'', ''Myaka myaka'', ''Pungu maclareni'', ''Sarotherodon caroli'', '' S. linnellii'', '' S. lohberge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lake Barombi Koto
Lake Barombi Koto, also known as Lake Barombi Kotto or Lake Barombi-ba-Kotto, is a small lake in the volcanic chain in the Southwest Region of Cameroon. It is a volcanic lake with a diameter of about . There is a small island in the middle, which is densely inhabited by the Barombi, a tribe of fishers. The Tung Nsuia and Tung Nsuria streams, each about wide and deep near their mouth, are the only inflows into the lake, and they dry out in dry season. Biology Lake Barombi Koto often appears green-brown because it is rich in phytoplankton. Invertebrates, turtles and the aquatic frog ''Xenopus tropicalis'' are common in the lake, which is also an important sanctuary for birds. Seven fish species are known from the lake, including '' Enteromius callipterus'' and a ''Clarias'' catfish, while the remaining all are cichlids: '' Coptodon kottae'', '' Chromidotilapia guentheri'', ''Hemichromis fasciatus'', '' Pelmatolapia mariae'' and ''Sarotherodon galilaeus''. Of these, ''C. guenthe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caridina Sodenensis
''Caridina'' is a genus of freshwater atyid shrimp. They are widely found in tropical or subtropical water in Asia, Oceania and Africa. They are filter-feeders and omnivorous scavengers. They range from 0.9–9.8 mm ('' C. cantonensis'') to 1.2–7.4 mm ('' C. serrata'') in carapace length. Taxonomy and species There is evidence for hybridization between sympatric taxa, requiring care when interpreting molecular phylogenetic analyses that do not use a large number of specimens. The genus ''Caridina'' includes the following species: *''Caridina ablepsia'' Guo, Jiang & Zhang, 1992 *''Caridina acuta'' Liang, Chen & W.-X. Li, 2005 *''Caridina acutirostris'' Schenkel, 1902 *''Caridina africana'' Kingsley, 1883 *''Caridina alba'' J. Li & S. Li, 2010 *''Caridina alphonsi'' Bouvier, 1919 *''Caridina amnicolizambezi'' Richard & Clark, 2009 *'' Caridina amoyensis'' Liang & Yan, 1977 *''Caridina angulata'' Bouvier, 1905 *'' Caridina angustipes'' Guo & Liang, 2003 *''Caridina anisla ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atyidae
Atyidae is a family of shrimp, present in all tropical and most temperate waters of the world. Adults of this family are almost always confined to fresh water. This is the only family in the superfamily Atyoidea. Genera and species The following classification follows De Grave ''et al.'' (2010), with subsequent additions. *'' Antecaridina'' Edmondson, 1954 *'' Archaeatya'' Villalobos, 1959 *''Atya'' Leach, 1816 *'' Atyaephyra'' de Brito Capello, 1867 *'' Atydina'' Cai, 2010 *'' Atyella'' Calman, 1906 *''Atyoida'' Randall, 1840 *''Atyopsis'' Chace, 1983 *'' Australatya'' Chace, 1983 *'' Caridella'' Calman, 1906 *''Caridina'' H. Milne-Edwards, 1837 *'' Caridinides'' Calman, 1926 *'' Caridinopsis'' Bouvier, 1912 *''Delclosia'' Rabadà, 1993 † *'' Dugastella'' Bouvier, 1912 *'' Edoneus'' Holthuis, 1978 *''Elephantis'' Castelin, Marquet & Klotz, 2013 *'' Gallocaris'' Sket & Zakšek, 2009 *''Halocaridina'' Holthuis, 1963 *'' Halocaridinides'' Fujino & Shokita, 1975 *'' Jolivetya'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Barbus
''Barbus'' is a genus of ray-finned fish in the family Cyprinidae. The type species of ''Barbus'' is the common barbel, first described as ''Cyprinus barbus'' and now named ''Barbus barbus''. ''Barbus'' is the namesake genus of the subfamily Barbinae, but given their relationships, that taxon is better included in the Cyprininae at least for the largest part (including the type species of ''Barbus''). Description and uses Their common names – barbs and barbels – refer to the fact that most members of the genera have a pair of barbels on their mouths, which they can use to search for food at the bottom of the water. Barbels are often fished for food; in some locations they are of commercial significance. The roe of barbels is poisonous, however. The large ''Barbus'' barbs are also often eaten in their native range. At Shanhûr in Egypt, remains of a jar from the sixth- to seventh-century AD were unearthed that contained fish bones. The fish were apparently pick ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
