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(editor). [21] This deep lake may have functioned as an "evolutionary reservoir" for this haplochromine group in periods where other shallower lakes in the region dried out, as happened to Lake Victoria about 15,000 years ago. Dated to be around 300 million years old! [18] Average evaporation on the lake is between 2.0 and 2.2 metres (6.6 and 7.2 ft) per year, almost double the precipitation of riparian areas. In 1990–1991, oxygen concentrations in the mixed layer were higher than in 1960–1961, with nearly continuous oxygen supersaturation in surface waters. DEUTSCHE Pornos - wir listen die besten Porno Filme von TUBE8 der Kategorie Deutsch, Pornostars & Amateure aus Germany . The second-largest continent after Asia, it is home to many beautiful and dangerous animals of various sizes, both diurnal and nocturnal. Many dangerous African animals are among the most dangerous in the world after human beings, whether hostile or poisonous. There are more than 5,000 species worldwide! The water hyacinth has become a major invasive plant species in Lake Victoria. We would like to show you a description here but the site won’t allow us. Among these are the hippopotamus, African clawless otter, spotted-necked otter, marsh mongoose, sitatunga, bohor reedbuck, defassa waterbuck, cane rats, and giant otter shrew. CS1 maint: multiple names: authors list (. With a surface area of approximately 59,947 km2 (23,146 sq mi),[10][11] Lake Victoria is Africa's largest lake by area, the world's largest tropical lake,[12] and the world's second-largest fresh water lake by surface area after Lake Superior in North America. The most widely distributed tortoise in Africa! Albright, T.P., Moorhouse, T.G., & McNabb, T.J. (January 1, 2004). In the late 1860s, the famous Scottish explorer and missionary David Livingstone failed in his attempt to verify Speke's discovery, instead pushing too far west and entering the River Congo system instead. [38] Two of the snail genera, Biomphalaria and Bulinus, are intermediate hosts of the parasite bilharzia (schistosomiasis). In his official report of the expedition, Graham wrote that "The ngege or satu Tilapia esculenta, is the most important food fish of the lake, whether for native or non-native consumption. Speke accomplished this in 1858, while on an expedition with Richard Francis … The main ports on the lake are Kisumu, Mwanza, Bukoba, Entebbe, Port Bell, and Jinja. However, the most distal source of the Nile Basin, and therefore the ultimate source of the Nile, is more often considered to be one of the tributary rivers of the Kagera River (the exact tributary remains undetermined), and which originates in either Rwanda or Burundi. Create a free forum : PHPBB3 You can create a free forum on Forumotion in seconds, without any technical knowledge and begin to discuss on your own forum instantly! Lake Victoria (Luo: Nam Lolwe; Luganda: Nnalubaale; also Ukerewe) is one of the African Great Lakes.. [41] Initially the population of the Nile perch was relatively low, but a drastic increase happened, peaking in the 1980s, followed by a decline starting in the 1990s.[41]. [68], The only shrimp/prawn is Caridina nilotica,[69] which is common and widespread in Lake Victoria. [75], Evarcha culicivora is a species of jumping spider (family Salticidae) found only around Lake Victoria in Kenya and Uganda. Are you curious about the 10 best dog names? Wildscreen's Arkive project was launched in 2003 and grew to become the world's biggest encyclopaedia of life on Earth. "Lake Victoria Fish Stocks and the Effects of Water Hyacinth". [29], Many mammal species live in the region of Lake Victoria, and some of these are closely associated with the lake itself and the nearby wetlands. Multiscreen - So geht smartes Fernsehen heute Mit TV-Streaming über Zattoo läuft dein TV-Programm live und zeitversetzt einfach über das Internet auf deinem TV-Gerät. [38] This is far more species of fish than any other lake in the world, except Lake Malawi. First domesticated by the Ancient Egyptians! [81] These warnings primarily concerned the native tilapia O. esculentus, as the smaller haplochromine cichlids (despite playing an important role in local fisheries) were regarded as "trash fish" by the colonial government. South Africa’s official national animal is the Springbok, its national bird is the Blue Crane, and its national fish the Galjoen. Many towns and cities are reliant on Victoria for their water supplies, for farming and other uses. The interface of the forum is intuitive, easy to use and customizable. It provides a blog engine and a framework for Web application development. Alle freien Wohnungen zur Miete in Franken finden Sie im regionalen Immobilienanzeigenmarkt bei immo.inFranken.de. The latter likely is the smallest African freshwater crab with a carapace width up to about 1.6 cm (0.6 in), although P. kantsyore of Kagera River, and Platythelphusa maculata and P. polita of Lake Tanganyika are almost as small. Africa has several different types of habitats from jungles and forests to grasslands and deserts. Pollution of Lake Victoria is mainly due to discharge of raw sewage into the lake, dumping of domestic and industrial waste, and fertiliser and chemicals from farms. There are around 75,000 recognised species! [81] UGFD officials argued that Nile perch must have spread to Lake Victoria by themselves by passing through the Owen Falls Dam when shut down for maintenance, but this is considered highly unlikely by many scientists. [81] The Nile perch had spread throughout the lake by 1970. Eels can be a mere few inches long to 13 feet! The Land, the Races and their Customs, with Specimens of Some of the Dialects", "How feud wrecked the reputation of explorer who discovered Nile's source", "Origin of the Superflock of Cichlid Fishes from Lake Victoria, East Africa", "Deoxygenation of the deep water of Lake Victoria, East Africa", Verhandlungen der Internationale Vereinigung für Limnologie, "Environmental and Social Management Framework-ESMF", 10.2305/IUCN.UK.2016-1.RLTS.T60668A97125826.en, "Ancient hybridization fuels rapid cichlid fish adaptive radiations", 10.2305/IUCN.UK.2010-3.RLTS.T185857A8492470.en, "Prevalence of disruptive selection predicts extent of species differentiation in Lake Victoria cichlids", "Two new species of zooplanktivorous haplochromine cichlids from Lake Victoria, Tanzania", "A pharyngeal jaw evolutionary innovation facilitated extinction in Lake Victoria cichlids". Lake Victoria (Luo: Nam Lolwe; Luganda: Nnalubaale; also Ukerewe)[6][7] is one of the African Great Lakes. Until 1963, the fastest and newest ferry, MV Victoria, was designated a Royal Mail Ship. All of them can be seen in South Africa and are native animals: Land animals in Africa are popular attractions for safari enthusiasts, although they are not always treated with caution and respect. Stunning bird with a stinky way to deter predators! Thought to have orignated 200,000 years ago! [18] The lake's area is divided among three countries: Kenya occupies 6% (4,100 km2 or 1,600 sq mi), Uganda 45% (31,000 km2 or 12,000 sq mi), and Tanzania 49% (33,700 km2 or 13,000 sq mi).[19]. Nevertheless, the natives continued to dominate fisheries until the 1970s where their decline meant that there was a strong shift towards the non-native Nile tilapia (now 7 percent of catches), non-native Nile perch (60 percent) and the native Lake Victoria sardine (30 percent). [32] The Williams' mud turtle is restricted to Lake Victoria and other lakes, rivers, and swamps in the upper Nile basin. Endangered animals in Africa include the Black Rhino, White Rhino, Rothschild’s Giraffe, Grévy’s Zebra, (African) Wild Dog, Grey Crowned Crane and Okapi.

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