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Lake Kyoga
Lake Kyoga (literally 'the place of bathing' in Runyoro language) is a large shallow lake in Uganda, about in area and at an elevation of 1,033 metres. The Victoria Nile flows through the lake on its way from Lake Victoria to Lake Albert. The main inflow from Lake Victoria is regulated by the Nalubaale Power Station in Jinja. Another source of water is the Mount Elgon region on the border between Uganda and Kenya. While Lake Kyoga is part of the African Great Lakes system, it is not itself considered a great lake. The lake reaches a depth of about 5.7 metres, and most of it is less than 4 metres deep. Areas that are less than 3 metres deep are completely covered by water lilies, while much of the swampy shoreline is covered with papyrus and the invasive water hyacinth. The papyrus also forms floating islands that drift between a number of small permanent islands. Extensive wetlands fed by a complex system of streams and rivers surround the lakes. Nearby Lake Kwania is a smalle ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NASA
The National Aeronautics and Space Administration (NASA ) is an independent agency of the US federal government responsible for the civil space program, aeronautics research, and space research. NASA was established in 1958, succeeding the National Advisory Committee for Aeronautics (NACA), to give the U.S. space development effort a distinctly civilian orientation, emphasizing peaceful applications in space science. NASA has since led most American space exploration, including Project Mercury, Project Gemini, the 1968-1972 Apollo Moon landing missions, the Skylab space station, and the Space Shuttle. NASA supports the International Space Station and oversees the development of the Orion spacecraft and the Space Launch System for the crewed lunar Artemis program, Commercial Crew spacecraft, and the planned Lunar Gateway space station. The agency is also responsible for the Launch Services Program, which provides oversight of launch operations and countdown management f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nymphaeaceae
Nymphaeaceae () is a family of flowering plants, commonly called water lilies. They live as rhizomatous aquatic herbs in temperate and tropical climates around the world. The family contains nine genera with about 70 known species. Water lilies are rooted in soil in bodies of water, with leaves and flowers floating on or emergent from the surface. Leaves are round, with a radial notch in '' Nymphaea'' and ''Nuphar'', but fully circular in ''Victoria'' and ''Euryale''. Water lilies are a well-studied clade of plants because their large flowers with multiple unspecialized parts were initially considered to represent the floral pattern of the earliest flowering plants, and later genetic studies confirmed their evolutionary position as basal angiosperms. Analyses of floral morphology and molecular characteristics and comparisons with a sister taxon, the family Cabombaceae, indicate, however, that the flowers of extant water lilies with the most floral parts are more derived ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Undescribed Taxon
In taxonomy, an undescribed taxon is a taxon (for example, a species) that has been discovered, but not yet formally described and named. The various Nomenclature Codes specify the requirements for a new taxon to be validly described and named. Until such a description has been published, the taxon has no formal or official name, although a temporary, informal name is often used. A published scientific name may not fulfil the requirements of the Codes for various reasons. For example, if the taxon was not adequately described, its name is called a '' nomen nudum''. It is possible for a taxon to be "undescribed" for an extensive period of time, even if unofficial descriptions are published. An undescribed species may be referred to with the genus name, followed by "sp"., but this abbreviation is also used to label specimens or images that are too incomplete to be identified at the species level. In some cases, there is more than one undescribed species in a genus. In this case, th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Haplochromis Worthingtoni
''Haplochromis worthingtoni'' is a species of cichlid endemic to Lake Kyoga in Uganda. This species reaches a length of SL. The specific name Specific name may refer to: * in Database management systems, a system-assigned name that is unique within a particular database In taxonomy, either of these two meanings, each with its own set of rules: * Specific name (botany), the two-part (bino ... honours the explorer E. Barton Worthington (1905–2001) who collected the type of this species with type with Michael Graham. References Fish described in 1929 worthingtoni Endemic freshwater fish of Uganda Lake fish of Africa Taxonomy articles created by Polbot {{Haplochromis-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Haplochromis Latifasciatus
''Formally Haplochromis latifasciatus, Now Astatotilapia Latifasciata'' is a species of cichlid that is endemic to Uganda where restricted to the Lake Kyoga system, including Lake Bisina (a medium-sized lake to the east of Lake Kyoga itself) and Lake Nawampasa (a small lake southeast of Lake Kyoga itself and only separated by a thin swamp). This fish can reach a total length of . It is also seen in the aquarium trade and it is easily bred in captivity. In the aquarium trade it is frequently labelled as ''Haplochromis'' "zebra obliquidens", which sometimes cause confusion with ''Haplochromis obliquidens'', a separate species from Lake Victoria that is not known from the aquarium trade. See also *List of freshwater aquarium fish species A vast number of aquatic species have successfully adapted to live in the freshwater aquarium. This list gives some examples of the most common species found in home aquariums. Catfish Characins and other characiformes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endemism
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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marbled Lungfish
The marbled lungfish (''Protopterus aethiopicus'') is a lungfish of the family Protopteridae. Also known as the leopard lungfish, it is found in Eastern and Central Africa, as well as the Nile region. At 133 billion base pairs, it has the largest known genome of any vertebrate and one of the largest of any organism, along with ''Polychaos dubium'' and ''Paris japonica'' at 670 billion and 150 billion, respectively. The marbled lungfish is caught in large numbers throughout much of its range, including several hundred metric tonnes per year in the Mwanza Gulf of Lake Victoria alone. It is mostly a food fish, although this varies depending on the exact community, with some recognizing it as a delicacy and others strongly disliking its taste or considering it as a taboo to eat it. In some regions, parts of this fish are used as traditional medicine. Description The marbled lungfish is smooth, elongated, and cylindrical with deeply embedded scales. The tail is very long and has taper ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lake Victoria Sardine
The silver cyprinid (''Rastrineobola argentea'') also known as the Lake Victoria sardine, mukene,and omena (native language), dagaa (swahili language) is a species of pelagic, freshwater ray-finned fish in the carp family, Cyprinidae from East Africa. It is the only member of the genus ''Rastrineobola''. Description A small silvery fish which has a strongly compressed body covered in large scales with a pearlescent sheen and a yellow tail, and can grow to a length of . The lateral line is below the midpoint of the body and runs to the lower part of the caudal peduncle. The cheek is covered by delicate suborbital bones. Distribution The silver cyprinid is known from the drainage basin of Lake Victoria, Lake Kyoga, Lake Nabugabo and the Victoria Nile, occurring in Kenya, Uganda and Tanzania. Biology The silver cyprinid has a lake-wide distribution covering both inshore and offshore in Lake Victoria. It normally occurs between in depth, although both eggs and fry can be encounter ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Haplochromine
__NOTOC__ The haplochromine cichlids are a tribe of cichlids in subfamily Pseudocrenilabrinae called Haplochromini. This group includes the type genus (''Haplochromis'') plus a number of closely related genera such as '' Aulonocara'', '' Astatotilapia'', and '' Chilotilapia''. They are endemic to eastern, southern and northern Africa, except for ''Astatotilapia flaviijosephi'' in the ''Middle East''. A common name in a scientific context is East African cichlids – while they are not restricted to that region, they are the dominant Cichlidae there. This tribe was extensively studied by Ethelwynn Trewavas, who made major reviews in 1935 and 1989, at the beginning and at the end of her career in ichthyology. Even today, numerous new species are being described each year. The haplochromines were in older times treated as subfamily Haplochrominae, However, the great African radiation of pseudocrenilabrine cichlids is certainly not monophyletic without them, and thus they are t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nile Crocodile
The Nile crocodile (''Crocodylus niloticus'') is a large crocodilian native to freshwater habitats in Africa, where it is present in 26 countries. It is widely distributed throughout sub-Saharan Africa, occurring mostly in the central, eastern, and southern regions of the continent, and lives in different types of aquatic environments such as lakes, rivers, swamps, and marshlands. In West Africa, it occurs along with two other crocodilians. Although capable of living in saline environments, this species is rarely found in saltwater, but occasionally inhabits deltas and brackish lakes. The range of this species once stretched northward throughout the Nile, as far north as the Nile Delta. On average, the adult male Nile crocodile is between in length and weighs including stomach stones. However, specimens exceeding in length and weighing up to have been recorded. It is the largest freshwater predator in Africa, and may be considered the second-largest extant reptile in the w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Astatotilapia Latifasciata2
''Astatotilapia'' is a genus of small freshwater fish in the family Cichlidae found in Eastern and Northern Africa, with a single species, ''A. flaviijosephi'', in Western Asia (the only non-African haplochromine). Many species have been moved between this genus and ''Haplochromis'', and while some consensus has been reached in recent years, their mutual delimitation is still far from settled. Based on mtDNA, ''Astatotilapia'' as currently defined is polyphyletic.Genner; Ngatunga; Mzighani; Smith; and Turner (2015). Geographical ancestry of Lake Malawi’s cichlid fish diversity. Biol. Lett. 11: 2015023. Species There are currently 10 recognized species in this genus: * ''Astatotilapia bloyeti'' ( Sauvage, 1883) (Bloyet's haplo) * ''Astatotilapia burtoni'' ( Günther, 1894) * ''Astatotilapia calliptera'' ( Günther, 1894) (Eastern happy) * ''Astatotilapia desfontainii'' ( Lacépède, 1802) * ''Astatotilapia flaviijosephi'' ( Lortet, 1883) (Jordan mouthbrooder) * ''Astatotilapia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lake Kwania
Lake Kwania is in the districts of Lira, Apac and Amolatar in the Northern Region of Uganda. It is part of a large wetland along the White Nile (Victoria Nile) between Lake Victoria and Lake Albert. The wetland, which includes Lake Kwania, the even larger Lake Kyoga, and other water bodies and swamps, consists of about of open water and about of permanent swamps. Of this total, Lake Kwania accounts for , about 16 percent, of the open water. The lake is heavily fished for Nile tilapia and Nile perch, introduced species that caused declines in native fish populations after the mid-1950s. By the late 1960s, the introduced species made up about 80 percent of the commercial catch from Lake Kyoga, Kwania's near neighbor. Although civil unrest, overfishing, and infestations of water hyacinth (later brought under control) at times curtailed the fishing, by the mid-1990s Lake Kwania had 34 landing sites and a fleet of about 1,500 planked canoes operated by about 4,500 fisher ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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