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Cape Galaxias
The Cape galaxias (''Galaxias zebratus'') is a species of freshwater fish of the family Galaxiidae. It is a small fish, rarely larger than 6 cm, that inhabits clear streams, rivers and ponds of South Africa. It shares the same habitat as imported trout and bass species and has been identified as prey. The numbers of this relatively delicate fish have declined around Cape Town. Although in South Africa it was at one time classified as near threatened, in Australia species of the same genus were driven to extinction by competing salmonids and other introduced species of fish. It is now classified as " Data Deficient" on the grounds that the taxonomic status of the species complex is unclear. Description The Cape galaxias is a small slender fish with a cylindrical body and no scales. It has a single dorsal fin with 9 to 13 soft rays set well back on the body and just above the anal fin which has a similar number of rays. It is silvery in colour and the internal organs can be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Francis De Laporte De Castelnau
Francis may refer to: People and characters *Pope Francis, head of the Catholic Church (2013–2025) *Francis (given name), including a list of people and fictional characters * Francis (surname) * Francis, a character played by YouTuber Boogie2988 Places * Rural Municipality of Francis No. 127, Saskatchewan, Canada * Francis, Saskatchewan, Canada ** Francis (electoral district) * Francis, Nebraska, USA * Francis Township, Holt County, Nebraska, USA * Francis, Oklahoma, USA * Francis, Utah, USA Arts, entertainment, media * ''Francis'' (film), the first of a series of comedies featuring Francis the Talking Mule, voiced by Chill Wills *''Francis'', a 1983 play by Julian Mitchell * Francis (band), a Sweden-based folk band * Francis (TV series), a Indian Bengali-language animated television series Other uses * FRANCIS, a bibliographic database * ''Francis'' (1793), a colonial schooner in Australia * Francis turbine, a type of water turbine See also * Saint Francis (disambiguatio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Galaxias
''Galaxias'' is a genus of small freshwater fish in the family Galaxiidae, and are frequently referred to as the galaxiids. These highly adaptable fish are typically found at temperate latitudes across the Southern Hemisphere. Galaxiids are scaleless and somewhat tubular in body form, ranging from very slender to quite bulky. They are somewhat torpedo-shaped, with the dorsal and anal fins positioned close to the tail. They are generally small, with typical adults ranging between in total length, with some stocky species attaining around . The largest, ''Galaxias argenteus'', has been recorded at , although is a more typical adult length. Species The 46 recognized species in this genus are: * '' Galaxias aequipinnis'' Raadik, 2014 (East Gippsland Galaxias) * '' Galaxias anomalus'' Stokell, 1959 (Roundhead Galaxias) * '' Galaxias arcanus'' Raadik, 2014 (Riffle Galaxias) * '' Galaxias argenteus'' Gmelin, 1789 (Giant Kōkopu) * '' Galaxias auratus'' Johnston, 1883 (Golden ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taxa Named By François-Louis Laporte, Comte De Castelnau
In biology, a taxon (back-formation from ''taxonomy''; : taxa) is a group of one or more populations of an organism or organisms seen by taxonomists to form a unit. Although neither is required, a taxon is usually known by a particular name and given a particular ranking, especially if and when it is accepted or becomes established. It is very common, however, for taxonomists to remain at odds over what belongs to a taxon and the criteria used for inclusion, especially in the context of rank-based (" Linnaean") nomenclature (much less so under phylogenetic nomenclature). If a taxon is given a formal scientific name, its use is then governed by one of the nomenclature codes specifying which scientific name is correct for a particular grouping. Initial attempts at classifying and ordering organisms (plants and animals) were presumably set forth in prehistoric times by hunter-gatherers, as suggested by the fairly sophisticated folk taxonomies. Much later, Aristotle, and later still ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eastern Cape
The Eastern Cape ( ; ) is one of the nine provinces of South Africa. Its capital is Bhisho, and its largest city is Gqeberha (Port Elizabeth). Due to its climate and nineteenth-century towns, it is a common location for tourists. It is also known for having been home to many anti-apartheid activists, including Nelson Mandela. The second largest province in the country (at 168,966 km2) after the Northern Cape, it was formed in 1994 out of the Xhosa people, Xhosa homelands or bantustans of Transkei and Ciskei, together with the eastern portion of the Cape Province. The central and eastern part of the province is the traditional home of the indigenous Xhosa people. In 1820 this area, which was known as the Xhosa Kingdom, began to be settled by Europeans who originally came from England, Scotland and Ireland. Eastern Cape is the only province in South Africa were the number of Black Africans declined from 86.6% to 85.7% since Apartheid ended in 1994. History The Eastern Cape p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gamtoos River
Gamtoos River or Gamptoos River is a river in the Eastern Cape Province, South Africa. It is formed by the confluence of the Kouga River and the Groot River and is approximately long with a catchment area of . Course The Gamtoos river system is formed by the Groot, the Kouga and the Baviaanskloof rivers. The latter is a tributary of the Kouga. Although the rainfall in the catchment area is low, it supports a commercial irrigated agriculture in the lower catchment in which oranges, tobacco, citrus fruit and vegetables are grown. There is an estuary where the Gamtoos river enters the Indian Ocean. It is located between Jeffreys Bay and Port Elizabeth and the Gamtoos River Mouth Nature Reserve is in the area. The towns of Hankey, the oldest town situated in the Gamtoos river valley, and Patensie are situated in the lower catchment. Further inland are the towns of Steytlerville, Joubertina, Uniondale, Willowmore and Murraysburg. Tributaries include the Loerie River, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Krom River
Krom River or Kromme River () is a river in the Eastern Cape Province in South Africa. The river flows into the Indian Ocean through an estuary on the north side of Kouga Local Municipality, St Francis Bay, west of Port Elizabeth. The Krom river flows in an ESE direction and is approximately 109 km long with a catchment area of 1,085 km. The Churchill Dam and the Impofu Dam are dams on the Krom River. The latter is located near Humansdorp. Presently this river is part of the Fish to Tsitsikama Water Management Area. Ecology In 1995 specimens of the Cape galaxias ''(Galaxias zebratus)'', a South African fish species Endemism, endemic to the Cape Floristic Region, were found in the Krom River. Until then it had been thought that its distribution was restricted to the area between the Keurbooms River, Keurbooms and the Olifants River (Western Cape), Olifants River. Although in South Africa this relatively delicate fish is only classified as near threatened, in Australia s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Olifants River (Western Cape)
The Olifants River () is a river in the northwestern area of the Western Cape Province of South Africa. The upper and main catchment area of the Olifants river is around Ceres and the Cederberg mountains. The Clanwilliam and Bulshoek dams are located on the river and provide water for the towns and farms along the watercourse. The river is approximately 285 km long with a catchment area of 46,220 km2. It flows into the Atlantic Ocean at Papendorp, 250 km north of Cape Town. Watershed The Olifants River rises in the Winterhoek Mountains north of Ceres. The mainstem is about 265 km long. The river flows to the north-west through a deep, narrow valley that widens and flattens into a broad floodplain below Clanwilliam. The river eventually drains into the Atlantic Ocean near Papendorp. At the mouth the Olifants river is split in two by an island that exhibits interesting rock formations. Tributaries Its main tributary is the Doring River, changing name as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Keurbooms River
The Keurbooms River () is a river in the Western Cape Province in South Africa. The river has its sources south of Uniondale, Western Cape, Uniondale in the Langkloof and flows in a roughly southeastern direction. It passes De Vlugt and the Prince Alfred Pass, flowing along the northern side of the R340 road then it turns south. After crossing the N2 road (South Africa), N2 road, it flows into the Indian Ocean through the Keurbooms Estuary, located close to the coastal town of Plettenberg Bay. The Keurbooms River is approximately 85 km long with a catchment area of 1,080 km2. Its main tributary is the Bitou River, Bitou (Bietou). Ecology The Keurbooms River marks the eastern limit of the area inhabited by the Cape galaxias ''(Galaxias zebratus)'', a South African fish species Endemism, endemic to the Cape Floristic Region. It shares the same habitat as imported trouts and lives in an area between the Keurbooms and the Olifants River (Western Cape), Olifants River. Althoug ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cape Flats
The Cape Flats () is an expansive, low-lying, flat area situated to the southeast of the central business district of Cape Town. The Cape Flats is also the name of an administrative region of the City of Cape Town, which lies within the larger geographical area. Geology and geography In geological terms, the area that makes up The Cape Flats is a vast sheet of Aeolian processes, aeolian sand, ultimately of marine origin, which has blown up from the adjacent beaches over a period of a hundred thousand years. Below the sand, the bedrock is in general alternating layers of dark grey shale, siltstone and minor sandstone from a late-Precambrian rock formation called the Malmesbury Group. This is except on part of the western margin between Zeekoevlei to the south and Claremont, Cape Town, Claremont and Wetton, Cape Town, Wetton to the north, where an intrusive mass of Geology of Cape Town, Cape granite is to be found. Most of the sand is unconsolidated; however, in some places near the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Western Cape
The Western Cape ( ; , ) is a provinces of South Africa, province of South Africa, situated on the south-western coast of the country. It is the List of South African provinces by area, fourth largest of the nine provinces with an area of , and List of South African provinces by population, the third most populous, with an estimated 7 million inhabitants in 2020. About two-thirds of these inhabitants live in the metropolitan area of Cape Town, which is also the provincial capital. The Western Cape was created in 1994 from part of the former Cape Province. The two largest cities are Cape Town and George, Western Cape, George. Geography The Western Cape is roughly L-shaped, extending north and east from the Cape of Good Hope, in the southwestern corner of South Africa. It stretches about northwards along the Atlantic coast and about eastwards along the South African south coast (Southern Indian Ocean). It is bordered on the north by the Northern Cape and on the east by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endemism
Endemism is the state of a species being found only 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 also be referred to as an ''endemism'' or, in scientific literature, as an ''endemite''. Similarly, many species found in the Western ghats of India are examples of endemism. Endemism is an important concept in conservation biology for measuring biodiversity in a particular place and evaluating the risk of extinction for species. Endemism is also of interest in evolutionary biology, because it provides clues about how changes in the environment cause species to undergo range shifts (potentially expanding their range into a larger area or b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
African Continent
Africa is the world's second-largest and second-most populous continent after Asia. At about 30.3 million km2 (11.7 million square miles) including adjacent islands, it covers 20% of Earth's land area and 6% of its total surface area.Sayre, April Pulley (1999), ''Africa'', Twenty-First Century Books. . With nearly billion people as of , it accounts for about of the world's human population. Africa's population is the youngest among all the continents; the median age in 2012 was 19.7, when the worldwide median age was 30.4. Based on 2024 projections, Africa's population will exceed 3.8 billion people by 2100. Africa is the least wealthy inhabited continent per capita and second-least wealthy by total wealth, ahead of Oceania. Scholars have attributed this to different factors including geography, climate, corruption, colonialism, the Cold War, and neocolonialism. Despite this low concentration of wealth, recent economic expansion and a large and young populatio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
