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Tigerfish
Tigerfish can refer to fish from various families, and derives from official and colloquial associations of these with the tiger (''Panthera tigris''). However, the primary species designated by the name "tigerfish" are African and belong to the family Alestidae. African tigerfish Several species belonging to the genus '' Hydrocynus'' of the family Alestidae are referred to as "tigerfish", and are particularly prized as game fish. These African fish are found in many rivers and lakes on the continent and are fierce predators with distinctive, proportionally large teeth. The goliath tigerfish (''Hydrocynus goliath'') is among the most famous tigerfish. The largest one on record is said to have weighed . It is found in the Congo River system and Lake Tanganyika and is the largest member of the family Alestidae. Another famous species, simply called the tigerfish (''Hydrocynus vittatus''), is commonly found in the southernly Okavango Delta, and the Zambezi River, and also in the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydrocynus Goliath
''Hydrocynus goliath'', also known as the goliath tigerfish, giant tigerfish, or mbenga, is a very large African predatory freshwater fish of the family Alestidae. Distribution ''Hydrocynus goliath'' is found in the Congo River Basin (including Lualaba River and Lake Upemba), and Lake Tanganyika. A study published in 2011 revealed several mtDNA clades in this region, suggesting a higher tigerfish species richness than traditionally recognized. If confirmed, this would restrict ''H. goliath'' to the Congo River Basin.Goodier, S.A.M., F.P.D. Cotterill, C. O'Ryan, P.H. Skelton, and M.J de Wit (2011). Cryptic Diversity of African Tigerfish (Genus Hydrocynus) Reveals Palaeogeographic Signatures of Linked Neogene Geotectonic Events'' PLoS ONE 6(12): e28775. doi:10.1371/journal.pone.0028775 Four additional species ('' H. vittatus'' and three unknown species) appear to be present in this Basin, while two (''H. vittatus'' and an unknown species) appear to be present in Lake Tanganyika. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydrocynus Vittatus
''Hydrocynus vittatus'', the African tigerfish, tiervis or ngwesh is a predatory freshwater fish distributed throughout much of Africa. This fish is generally a piscivore but it has been observed leaping out of the water and catching barn swallows in flight. Includes a video. Includes a video. Appearance The African tigerfish is overall silvery in colour, with thin black stripes running horizontally. It has an elongated body and a red, forked caudal fin with a black edge. Its head is large, as well as its teeth, of which there are eight per jaw. The teeth are sharp and conical which are used to grasp and chop prey. They are able to replace their teeth simultaneously on the upper and lower jaws. Males are larger and more full-bodied than females. It grows to a length of SL. Distribution This species' distribution covers the Niger/ Bénoué, Ouémé River, Senegal River, Nile, Omo River, Congo River, Lufira, Lualaba River, Luapula, Zambezi, Limpopo River, Rovuma, Shire River ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydrocynus
''Hydrocynus'' is a genus of large characin fish in the family Alestidae commonly called "tigerfish," native to the African continent. The genus name is derived from Ancient Greek ὕδωρ ("water"Liddell, H.G. & Scott, R. (1940). ''A Greek-English Lexicon. revised and augmented throughout by Sir Henry Stuart Jones. with the assistance of. Roderick McKenzie.'' Oxford: Clarendon Press.) + κύων ("dog"). (In fact, this fish is popularly referred to as ''poisson chien'' (dog fish) in French-speaking West Africa.) The genus contains five species, all popularly known as "African tigerfish" for their fierce predatory behaviour and other characteristics that make them excellent game fish. ''Hydrocynus'' are normally piscivorous, but ''H. vittatus'' is the only freshwater fish proven to prey on birds in flight. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
African Tigerfish
''Hydrocynus'' is a genus of large characin fish in the family Alestidae commonly called "tigerfish," native to the African continent. The genus name is derived from Ancient Greek ὕδωρ ("water"Liddell, H.G. & Scott, R. (1940). ''A Greek-English Lexicon. revised and augmented throughout by Sir Henry Stuart Jones. with the assistance of. Roderick McKenzie.'' Oxford: Clarendon Press.) + κύων ("dog"). (In fact, this fish is popularly referred to as ''poisson chien'' (dog fish) in French-speaking West Africa.) The genus contains five species, all popularly known as "African tigerfish" for their fierce predatory behaviour and other characteristics that make them excellent game fish. ''Hydrocynus'' are normally piscivorous, but ''H. vittatus'' is the only freshwater fish proven to prey on birds in flight. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Datnioides
''Datnioides'' is a genus of fish known commonly as tigerfish, tiger perch or freshwater tripletails, but all of these common names are also used for other families. It is the only genus in the family Datnioididae. These fish are found in fresh and brackish waters of rivers, estuaries and coastal areas in South and Southeast Asia, and New Guinea. Some researchers suggest that this family is related to the tripletails, family Lobotidae, while others do not find enough evidence to make the suggestion. The two families share an apparently unique mode of tooth replacement, a trait which might be a synapomorphy.Hilton, E. J. & W. E. Bemis. (2005)Grouped tooth replacement in the oral jaws of the tripletail, ''Lobotes surinamensis'' (Perciformes: Lobotidae), with a discussion of its proposed relationship to ''Datnioides''.''Copeia'' 2005(3), 665-72. Characteristics Datnioides have a total of 24 vertebrae. The dorsal fin has a hard-rayed portion with 12 fin rays, and a soft-rayed po ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhamphochromis
''Rhamphochromis'' is a genus of East African haplochromine cichlids endemic to the Lake Malawi basin, also including Lake Malombe, Lake Chilingali, Chia Lagoon and upper Shire River.Genner; Nichols; Carvalho; Robinson; Shaw; Smith; and Turner (2007). Evolution of a cichlid fish in a Lake Malawi satellite lake. Proceedings of the Royal Society B 274(1623). doi: 10.1098/rspb.2007.0619. They mainly occur in offshore open waters (down to depths of Lowe-McConnell, R.H. (2003). Recent research in the African Great Lakes: Fisheries, biodiversity and cichlid evolution. Freshwater Forum 20(1): 4—64.), but a few species also near the coast. Konings, Ad (1990). ''Ad Konings' Book of Cichlids and all the other Fishes of Lake Malawi.'' Pp. 458—464. . They are piscivores that typically feed on lake sardines and small utaka cichlids. They are elongated in shape and mainly silver or golden-silver in color, sometimes with yellow fins (especially pelvic and anal fins) and dark horizonta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Datnioididae
''Datnioides'' is a genus of fish known commonly as tigerfish, tiger perch or freshwater tripletails, but all of these common names are also used for other families. It is the only genus in the family Datnioididae. These fish are found in fresh and brackish waters of rivers, estuaries and coastal areas in South and Southeast Asia, and New Guinea. Some researchers suggest that this family is related to the tripletails, family Lobotidae, while others do not find enough evidence to make the suggestion. The two families share an apparently unique mode of tooth replacement, a trait which might be a synapomorphy.Hilton, E. J. & W. E. Bemis. (2005)Grouped tooth replacement in the oral jaws of the tripletail, ''Lobotes surinamensis'' (Perciformes: Lobotidae), with a discussion of its proposed relationship to ''Datnioides''.''Copeia'' 2005(3), 665-72. Characteristics Datnioides have a total of 24 vertebrae. The dorsal fin has a hard-rayed portion with 12 fin rays, and a soft-rayed po ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cichlid
Cichlids are fish from the family Cichlidae in the order Cichliformes. Cichlids were traditionally classed in a suborder, the Labroidei, along with the wrasses ( Labridae), in the order Perciformes, but molecular studies have contradicted this grouping. The closest living relative of cichlids is probably the convict blenny, and both families are classified in the 5th edition of ''Fishes of the World'' as the two families in the Cichliformes, part of the subseries Ovalentaria. This family is both large and diverse. At least 1,650 species have been scientifically described, making it one of the largest vertebrate families. New species are discovered annually, and many species remain undescribed. The actual number of species is therefore unknown, with estimates varying between 2,000 and 3,000. Many cichlids, particularly tilapia, are important food fishes, while others, such as the ''Cichla'' species, are valued game fish. The family also includes many popular freshwater aquariu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lake Malawi
Lake Malawi, also known as Lake Nyasa in Tanzania and Lago Niassa in Mozambique, is an African Great Lake and the southernmost lake in the East African Rift system, located between Malawi, Mozambique and Tanzania. It is the fifth largest fresh water lake in the world by volume, the ninth largest lake in the world by area—and the third largest and second deepest lake in Africa. Lake Malawi is home to more species of fish than any other lake in the world, including at least 700 species of cichlids.Turner, Seehausen, Knight, Allender, and Robinson (2001). "How many species of cichlid fishes are there in African lakes?" ''Molecular Ecology'' 10: 793–806. The Mozambique portion of the lake was officially declared a reserve by the Government of Mozambique on June 10, 2011,WWF (10 June 2011)"Mozambique’s Lake Niassa declared reserve and Ramsar site"Retrieved 17 July 2014. while in Malawi a portion of the lake is included in Lake Malawi National Park. Lake Malawi is a meromic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Family (biology)
Family ( la, familia, plural ') is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between order and genus. A family may be divided into subfamilies, which are intermediate ranks between the ranks of family and genus. The official family names are Latin in origin; however, popular names are often used: for example, walnut trees and hickory trees belong to the family Juglandaceae, but that family is commonly referred to as the "walnut family". What belongs to a family—or if a described family should be recognized at all—are proposed and determined by practicing taxonomists. There are no hard rules for describing or recognizing a family, but in plants, they can be characterized on the basis of both vegetative and reproductive features of plant species. Taxonomists often take different positions about descriptions, and there may be no broad consensus across the scientific community for some time. The publishing of new data and opini ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Biological Classification
In biology, taxonomy () is the scientific study of naming, defining ( circumscribing) and classifying groups of biological organisms based on shared characteristics. Organisms are grouped into taxa (singular: taxon) and these groups are given a taxonomic rank; groups of a given rank can be aggregated to form a more inclusive group of higher rank, thus creating a taxonomic hierarchy. The principal ranks in modern use are domain, kingdom, phylum (''division'' is sometimes used in botany in place of ''phylum''), class, order, family, genus, and species. The Swedish botanist Carl Linnaeus is regarded as the founder of the current system of taxonomy, as he developed a ranked system known as Linnaean taxonomy for categorizing organisms and binomial nomenclature for naming organisms. With advances in the theory, data and analytical technology of biological systematics, the Linnaean system has transformed into a system of modern biological classification intended to reflect the evolut ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
