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Umzimvubu River
Mzimvubu River or Umzimvubu River is one of the most important rivers in South Africa. It is located in the Eastern Cape Province. Course The river has its source in the northern region of the Eastern Cape, in the area of Matatiele and Mount Fletcher near the Lesotho border. The Mzimvubu flows with twists and turns generally in a southeastern direction and flows into the Indian Ocean through an impressive gorge known as the "Gates of St John" into an estuary located at Port St. Johns. It is approximately 400 km long with a catchment area of 19,853 km². Although it is one of South Africa's major rivers, the Mzimvubu and its basin are largely undeveloped. Presently this river is part of the Mzimvubu to Keiskamma Water Management Area. History In 1635 Portuguese ship 'Nossa Senhora de Belem' ran aground at the mouth of the Mzimvubu River. The Mzimvubu River divides Pondoland into an Eastern and Western Pondoland. Formerly the river mouth was used as a harbor, but this ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hippopotamus
The hippopotamus ( ; : hippopotamuses or hippopotami; ''Hippopotamus amphibius''), also called the hippo, common hippopotamus, or river hippopotamus, is a large semiaquatic mammal native to sub-Saharan Africa. It is one of only two extant species in the family Hippopotamidae, the other being the pygmy hippopotamus (''Choeropsis liberiensis'' or ''Hexaprotodon liberiensis''). Its name comes from the ancient Greek for "river horse" (). Aside from elephants and rhinos, the hippopotamus is the largest land mammal. It is also the largest extant land artiodactyl. Despite their physical resemblance to pigs and other terrestrial even-toed ungulates, the closest living relatives of the hippopotamids are cetaceans (whales, dolphins, porpoises, etc.), from which they diverged about 55 million years ago. Hippos are recognisable for their barrel-shaped torsos, wide-opening mouths with large canine tusks, nearly hairless bodies, pillar-like legs, and large size: adults average ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mzimvubu To Keiskamma Water Management Area
Mzimvubu to Keiskamma WMA, or Mzimvubu to Keiskamma Water Management Area (coded: 12), includes the following major rivers: the Swane River, Mntafufu River, Mzimvubu River, Mngazi River, Mthatha River, Xora River, Mbashe River, Nqabara River, Gqunube River, Buffalo River, Nahoon River, Groot Kei River and Keiskamma River, and covers the following Dams: * Binfield Park Dam on Tyhume River * Bridle Drift Dam on Buffalo River * Doornrivier Dam on Doorn River * Gcuwa Dam on Gcuwa River * Gubu Dam on Gubu River * Laing Dam on Buffalo River * Lubisi Dam on Indwe River * Nahoon Dam on Nahoon River * Ncora Dam on Tsomo River * Oxkraal Dam on Oxkraal River * Rooikrantz Dam on Buffalo River * Sandile Dam on Keiskamma River * Mthatha Dam on Mthatha River * Waterdown Dam on Klipplaat River * Wriggleswade Dam on Kubisi River * Xilinxa Dam on Xilinxa River * Xonxa Dam on White Kei River Boundaries Primary drainage regions R and S, and also tertiary ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mzimvubu River
Mzimvubu River or Umzimvubu River is one of the most important rivers in South Africa. It is located in the Eastern Cape Province. Course The river has its source in the northern region of the Eastern Cape, in the area of Matatiele and Mount Fletcher near the Lesotho border. The Mzimvubu flows with twists and turns generally in a southeastern direction and flows into the Indian Ocean through an impressive gorge known as the "Gates of St John" into an estuary located at Port St. Johns. It is approximately 400 km long with a catchment area of 19,853 km². Although it is one of South Africa's major rivers, the Mzimvubu and its basin are largely undeveloped. Presently this river is part of the Mzimvubu to Keiskamma Water Management Area. History In 1635 Portuguese ship 'Nossa Senhora de Belem' ran aground at the mouth of the Mzimvubu River. The Mzimvubu River divides Pondoland into an Eastern and Western Pondoland. Formerly the river mouth was used as a harbor, but th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Estuaries Of South Africa
This is a list of estuaries in South Africa. The list is in order from East (border with Mozambique) to the West (border with Namibia). The South African coastline stretches for some 3000 km from Kosi Bay near the Mozambique border in the east to the Gariep (Orange) River at the Namibian border in the west. Some 300 river outlets intersect this coastline and these range from small water bodies that are only occasionally connected to the ocean, to large, permanently open systems, and coastal lakes connected to the sea via a narrow channel (Heydorn, 1991). Being places where rivers meet the sea, estuaries are one of the most important features of the South African coastline; they are tranquil areas of high productivity and play a vital role in the life cycles of many plants and animals. Apart from their ecological importance, estuaries are also popular sites for human activity and development. Recreational uses of estuaries include bait collection, bird watching, boating, fis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Rivers Of South Africa
This is a list of rivers in South Africa. It is quite common to find the Afrikaans word ''-rivier'' as part of the name. Another common suffix is "''-kamma''", from the Khoisan term for "river" Meiring, Barbara"South African Toponymic Guidelines for Map and other editors: Fourth Edition" 12. Retrieved on 30 April 2013. (often tautologically the English term "river" is added to the name). The Zulu word ''amanzi'' (water) also forms part of some river names. The Afrikaans term ''spruit'' (compare spring) often labels small rivers. List * A Drainage basin code assigned by the Department of Water Affairs (South Africa), a complete list is available at Drainage basins of South Africa Gallery Image:South Africa Topography.png, Topographic map of South Africa. Image:Orange watershed topo.png, Course and watershed of the Orange River with topography shading and political boundaries. Image:Groot River.jpg, Grootrivier in Nature's Valley, stained a tea colour by plant tannins ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Invasive Species
An invasive species otherwise known as an alien is an introduced organism that becomes overpopulated and harms its new environment. Although most introduced species are neutral or beneficial with respect to other species, invasive species adversely affect habitats and bioregions, causing ecological, environmental, and/or economic damage. The term can also be used for native species that become harmful to their native environment after human alterations to its food webfor example the purple sea urchin (''Strongylocentrotus purpuratus'') which has decimated kelp forests along the northern California coast due to overharvesting of its natural predator, the California sea otter (''Enhydra lutris''). Since the 20th century, invasive species have become a serious economic, social, and environmental threat. Invasion of long-established ecosystems by organisms is a natural phenomenon, but human-facilitated introductions have greatly increased the rate, scale, and geographic range of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cyprinus Carpio
The Eurasian carp or European carp (''Cyprinus carpio''), widely known as the common carp, is a widespread freshwater fish of eutrophic waters in lakes and large rivers in Europe and Asia.Fishbase''Cyprinus carpio'' Linnaeus, 1758/ref>Arkive The native wild populations are considered Vulnerable species, vulnerable to extinction by the International Union for Conservation of Nature (IUCN), but the species has also been Domestication, domesticated and Introduced species, introduced (see aquaculture) into environments worldwide, and is often considered a destructive invasive species, being included in the list of the world's 100 worst invasive species. It gives its name to the carp family, Cyprinidae. Taxonomy The two subspecies are: * ''Cyprinus carpio carpio'', native to much of Europe (notably the Danube and Volga rivers)Jian Feng Zhou, Qing Jiang Wu, Yu Zhen Ye & Jin Gou Tong (2003). Genetic divergence between ''Cyprinus carpio carpio'' and ''Cyprinus carpio haematopterus'' as a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Micropterus Salmoides
The largemouth bass (''Micropterus salmoides'') is a carnivorous freshwater gamefish in the Centrarchidae (Centrarchidae, sunfish) family (biology), family, a species of black bass native to the eastern and central United States, southeastern Canada and northern Mexico, but widely Introduced species, introduced elsewhere. It is known by a variety of regional names, such as the widemouth bass, bigmouth bass, black bass, bucketmouth, largies, Potter's fish, Florida bass, Florida largemouth, green bass, bucketmouth bass, Green trout, gilsdorf bass, Oswego bass, LMB, and southern largemouth and northern largemouth. The largemouth bass is the List of U.S. state fish, state fish of Georgia (U.S. state), Georgia and Mississippi, and the state freshwater fish of Florida and Alabama. Taxonomy The largemouth bass was first formally described as ''Labrus salmoides'' in 1802 by the French naturalist Bernard Germain de Lacépède with the Type locality (biology), type locality given as the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anguilla Mossambica
The African longfin eel (''Anguilla mossambica''), also known simply as the longfin eel, is an eel in the family Anguillidae.''Anguilla mossambica'' at www.fishbase.org. It was described by in 1852, originally under the genus ''''.Peters, W. (C. H.), 1852 ef. 18539''Diagnosen von neuen Flussfischen aus Mossambique.'' Monatsberichte der Königlichen Preuss [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Barbus Anoplus
The chubbyhead barb (''Enteromius anoplus'') is a species of freshwater ray-finned fish in the genus ''Enteromius''. The fish is found throughout South Africa in a variety of aquatic environments. The species is notable for its two breeding seasons, which allows it to flourish despite a short lifespan. Identification The females () are larger than males (). They have blunt heads with a small mouth. A few beards reach down to the mouth. During the breeding season the males are brightly golden coloured, otherwise all the fish are a greyish green on the back with a small spot on the tail fin. Distribution The fish is widespread in rivers from the Highveld down to KwaZulu-Natal, former Transkei and the middle and upper parts of the Orange River. The species is also found in the bigger rivers of the Western and Eastern Cape. Habitat The fish prefers cooler water to live in and occur in a variety of habitats, from large lakes and rivers to small streams. They keep to dark waters where ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Introduced Species
An introduced species, alien species, exotic species, adventive species, immigrant species, foreign species, non-indigenous species, or non-native species is a species living outside its native distributional range, but which has arrived there by human activity, directly or indirectly, and either deliberately or accidentally. Non-native species can have various effects on the local ecosystem. Introduced species that become established and spread beyond the place of introduction are considered naturalized. The process of human-caused introduction is distinguished from biological colonization, in which species spread to new areas through "natural" (non-human) means such as storms and rafting. The Latin expression neobiota captures the characteristic that these species are ''new'' biota to their environment in terms of established biological network (e.g. food web) relationships. Neobiota can further be divided into neozoa (also: neozoons, sing. neozoon, i.e. animals) and neophyt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rainbow Trout
The rainbow trout (''Oncorhynchus mykiss'') is a species of trout native to cold-water tributaries of the Pacific Ocean in Asia and North America. The steelhead (sometimes called "steelhead trout") is an anadromous (sea-run) form of the coastal rainbow trout or Columbia River redband trout that usually returns to freshwater to spawn after living two to three years in the ocean. Freshwater forms that have been introduced into the Great Lakes and migrate into tributaries to spawn are also called steelhead. Adult freshwater stream rainbow trout average between , while lake-dwelling and anadromous forms may reach . Coloration varies widely based on subspecies, forms, and habitat. Adult fish are distinguished by a broad reddish stripe along the lateral line, from gills to the tail, which is most vivid in breeding males. Wild-caught and hatchery-reared forms of the species have been transplanted and introduced for food or sport in at least 45 countries and every continent except ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
