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Hepsetus Odoe
''Hepsetus odoe'', the African pike characin, is a predatory freshwater characin belonging to the family Hepsetidae. It was formerly considered that there was a single species of ''Hepsetus'' pike characin but recent studies have led to the species being split and ''Hepsetus odoe'' ''sensu stricto'' is the west African representative of the group. Description It is an elongated fish with a pike-like body, however this species is a characin and the pike resemblance is due to convergent evolution. This species can reach up to about in length. The back is normally dark brown or green while the belly is silver. The head is normally light green or brown with distinct dark brown or black stripes radiating out from the eye. The colour and pattern of adult fish is relatively stable but juveniles are more variable. Distribution ''Hepsetus odoe'' is found in western sub-Saharan Africa, from the Sassandra River in the Cote d'Ivoire in the west to the Shari River in the Central African Rep ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marcus Elieser Bloch
Marcus Elieser Bloch (1723–1799) was a German physician and naturalist who is best known for his contribution to ichthyology through his multi-volume catalog of plates illustrating the fishes of the world. Brought up in a Hebrew-speaking Jewish family, he learned German and Latin and studied anatomy before settling in Berlin as a physician. He amassed a large natural history collection, particularly of fish specimens. He is generally considered one of the most important ichthyology, ichthyologists of the 18th century, and wrote many papers on natural history, comparative anatomy, and physiology. Life Bloch was born at Ansbach in 1723 where his father was a Torah writer and his mother owned a small shop. Educated at home in Hebrew literature he became a private tutor in Hamburg for a Jewish surgeon. Here he learned German, Latin and anatomy. He then studied medicine in Berlin and received a doctorate in 1762 from Frankfurt (Oder), Frankfort on the Oder with a treatise on skin dis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mormyrid
The Mormyridae, sometimes called "elephantfish" (more properly freshwater elephantfish), are a family of weakly electric freshwater fish in the order Osteoglossiformes native to Africa. It is by far the largest family in the order with around 200 species. Members of the family can be popular, if challenging, aquarium species. These fish are also known for having large brain size and unusually high intelligence. They are not to be confused with the marine and brackish-water callorhinchid elephantfish (family Callorhinchidae) of Southern Hemisphere oceans. Description and biology The elephantfish are a diverse family, with a wide range of different sizes and shapes. The smallest are just in adult length, while the largest reach up to . They do, however, have a number of unique features in common. Firstly, their cerebellum is greatly enlarged, enabling them to interpret complex bio-electrical signals. and to the large size of the valve, Secondly, an auditory vesicle (a small b ... [...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 i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Characiformes
Characiformes is an order of ray-finned fish, comprising the characins and their allies. Grouped in 18 recognized families, more than 2000 different species are described, including the well-known piranha and tetras.; Buckup P.A.: "Relationships of the Characidiinae and phylogeny of characiform fishes (Teleostei: Ostariophysi)", ''Phylogeny and Classification of Neotropical Fishes'', L.R. Malabarba, R.E. Reis, R.P. Vari, Z.M. Lucena, eds. (Porto Alegre: Edipucr) 1998:123-144. Taxonomy The Characiformes form part of a series called the Otophysi within the superorder Ostariophysi. The Otophysi contain three other orders, Cypriniformes, Siluriformes, and Gymnotiformes. The Characiformes form a group known as the Characiphysi with the Siluriformes and Gymnotiformes. The order Characiformes is the sister group to the orders Siluriformes and Gymnotiformes, though this has been debated in light of recent molecular evidence. Originally, the characins were all grouped within a single ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fishes Of The World
''Fishes of the World'' by the American ichthyologist Joseph S. Nelson (1937–2011) is a standard reference for fish systematics. Now in its fifth edition (2016), the work is a comprehensive overview of the diversity and classification of the 30,000-plus fish species known to science. The book begins with a general overview of ichthyology, although it is not self-contained. After a short section on Chordata and non-fish taxa, the work lists all known fish families in a systematic fashion. Each family (biology), family gets at least one paragraph, and usually a body outline drawing; large families have subfamilies and tribes described as well. Notable genera and species are mentioned, while the book generally does not deal with the species-level diversity. The complexities of the higher taxa are described succinctly, with many references for difficult points. The book does not involve color illustrations. The fourth edition was the first to incorporate the wide use of DNA analy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hepsetus Occidentalis
''Hepsetus'' is a genus of African fishes, the African pikes or African pike characins, in the order Characiformes. It is the sole genus in the family Hepsetidae. It was long believed that only a single widespread species existed, ''H. odoe'', but studies in 2011–2013 have shown that this species is restricted to parts of West and Central Africa. The well-known species of southern Africa, including Kafue River, is '' Hepsetus cuvieri''. These predatory fish reach up to in length. Species There are currently six recognized species in this genus: * '' Hepsetus cuvieri'' ( Castelnau, 1861) * ''Hepsetus kingsleyae'' Vreven, Decru & Snoeks, 2013 * '' Hepsetus lineatus'' ( Pellegrin, 1926) * '' Hepsetus microlepis'' (Boulenger, 1901) * '' Hepsetus occidentalis'' Decru, Snoeks & Vreven, 2013 * ''Hepsetus odoe'' (Bloch, 1794) Synonym: * ''Hepsetus akawo'' Decru, Vreven & Snoeks, 2012 = ''Hepsetus odoe ''Hepsetus odoe'', the African pike characin, is a predatory freshwater ch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hepsetus Lineata
''Hepsetus'' is a genus of African fishes, the African pikes or African pike characins, in the order Characiformes. It is the sole genus in the family Hepsetidae. It was long believed that only a single widespread species existed, ''H. odoe'', but studies in 2011–2013 have shown that this species is restricted to parts of West and Central Africa. The well-known species of southern Africa, including Kafue River, is '' Hepsetus cuvieri''. These predatory fish reach up to in length. Species There are currently six recognized species in this genus: * '' Hepsetus cuvieri'' ( Castelnau, 1861) * ''Hepsetus kingsleyae'' Vreven, Decru & Snoeks, 2013 * ''Hepsetus lineatus'' ( Pellegrin, 1926) * ''Hepsetus microlepis'' (Boulenger, 1901) * ''Hepsetus occidentalis'' Decru, Snoeks & Vreven, 2013 * ''Hepsetus odoe'' (Bloch, 1794) Synonym: * ''Hepsetus akawo'' Decru, Vreven & Snoeks, 2012 = ''Hepsetus odoe ''Hepsetus odoe'', the African pike characin, is a predatory freshwater chara ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hepsetus Kingsleyae
''Hepsetus'' is a genus of African fishes, the African pikes or African pike characins, in the order Characiformes. It is the sole genus in the family Hepsetidae. It was long believed that only a single widespread species existed, ''H. odoe'', but studies in 2011–2013 have shown that this species is restricted to parts of West and Central Africa. The well-known species of southern Africa, including Kafue River, is '' Hepsetus cuvieri''. These predatory fish reach up to in length. Species There are currently six recognized species in this genus: * '' Hepsetus cuvieri'' ( Castelnau, 1861) * ''Hepsetus kingsleyae'' Vreven, Decru & Snoeks, 2013 * ''Hepsetus lineatus'' ( Pellegrin, 1926) * ''Hepsetus microlepis'' (Boulenger, 1901) * ''Hepsetus occidentalis'' Decru, Snoeks & Vreven, 2013 * ''Hepsetus odoe'' (Bloch, 1794) Synonym: * ''Hepsetus akawo'' Decru, Vreven & Snoeks, 2012 = ''Hepsetus odoe ''Hepsetus odoe'', the African pike characin, is a predatory freshwater chara ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hepsetus Cuvieri
''Hepsetus cuvieri'', sometimes known as the African pike or Kafue pike characin, is a predatory freshwater fish found in southern Africa. This species was described in 1861 by the French naturalist Francis de Laporte de Castelnau. The fish is named in honor of Georges Cuvier (1769-1832). Distribution This species is found in the southern third of Africa where it inhabits the Quanza, Cunene, Okavango, upper Zambezi, Kafue and Congo River basins. In the Congo River basin, it is only known from the southernmost part of the Kasai system and the lower Luapula. Description ''H. cuvieri'' can be distinguished from ''Hepsetus odoe'' as it has a lower count of gill rakers on the first gill arch, of 8–13 as opposed to 14–21; a normally higher number of scales between the lateral line and the dorsal fin, 10.5–11.5 as opposed to 7.5–10.5; a typically higher number of scales from the adipose fin and the lateral line, 6.5–7.5 as opposed to 4.5–6.5; and a distinctive col ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ivory Coast
Ivory Coast, also known as Côte d'Ivoire, officially the Republic of Côte d'Ivoire, is a country on the southern coast of West Africa. Its capital is Yamoussoukro, in the centre of the country, while its largest city and economic centre is the port city of Abidjan. It borders Guinea to the northwest, Liberia to the west, Mali to the northwest, Burkina Faso to the northeast, Ghana to the east, and the Gulf of Guinea (Atlantic Ocean) to the south. Its official language is French, and indigenous languages are also widely used, including Bété, Baoulé, Dioula, Dan, Anyin, and Cebaara Senufo. In total, there are around 78 different languages spoken in Ivory Coast. The country has a religiously diverse population, including numerous followers of Christianity, Islam, and indigenous faiths. Before its colonization by Europeans, Ivory Coast was home to several states, including Gyaaman, the Kong Empire, and Baoulé. The area became a protectorate of France in 1843 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sub-Saharan Africa
Sub-Saharan Africa is, geographically, the area and regions of the continent of Africa that lies south of the Sahara. These include West Africa, East Africa, Central Africa, and Southern Africa. Geopolitically, in addition to the List of sovereign states and dependent territories in Africa, African countries and territories that are situated fully in that specified region, the term may also include polities that only have part of their territory located in that region, per the definition of the United Nations (UN). This is considered a non-standardized geographical region with the number of countries included varying from 46 to 48 depending on the organization describing the region (e.g. UN, WHO, World Bank, etc.). The Regions of the African Union, African Union uses a different regional breakdown, recognizing all 55 member states on the continent - grouping them into 5 distinct and standard regions. The term serves as a grouping counterpart to North Africa, which is instead ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
