Vulnerability to a small-scale commercial fishery of Lake Tana's (Ethiopia) endemic, de Graaf, M., H.-J. Junk, The Hague, pp. 2015).Tana River County is one of the Counties in the Coastal region and experiences erratic rainfall leading to the occurrence of recurring drought episodes. It also provides 70 per cent of the country’s hydropower. ), The Nile, Biology of an Ancient River. Phytoplankton: composition, development and productivity. Notes on the benthos of the Nile system. Late Pleistocene desiccation of Lake Victoria and rapid evolution of cichlid fishes. © 2020 Springer Nature Switzerland AG. It has a total length of 390 kilometres (240 mi), and drains an area of 70,000 square kilometres (27,000 sq mi). In J. Rzóska (ed. Download preview. Part of Springer Nature. The capital and largest town is Hola (sometimes known as Galole). Lake Tana large barbs: phenetics, growth and diversification. Reproductive segregation among the, Nagelkerke, L. A. J. Fishes of the Blue Nile between Khartoum and Roseires. van Perlo, B., 1995. In A. Lacustrine spawning: is this a new reproductive strategy among ‘large’ African cyprinid fishes? Birds of Eastern Africa. Sibbing, 2009. Junk, The Hague, pp. There are large deposits of sand in the delta that are exposed sandbars at low tide.[1]. Environmental impact assessment for unusual reduced water level of Lake Tana. Birds of the Nile. 243–256. The Tana is well known for its excellent salmon fishery and is the most productive salmon river in Finland and Norway. of household farmers. Nile Basin asymmetries: a closed freshwater resource, soil water potential, the political economy and Nile transboundary hydropolitics. Journal of Ecology 55: 637–662. Source of irrigation water. Tana River. B., 1967. The River Nile, a case history. In H. J. Dumont (ed. Dejen, E., J. Vijverberg, L. A. J. Nagelkerke & F. A. Sibbing, 2004. With with only a few exceptions, the entire riverine network was supersaturated in CO2, implying the system is a net source of CO2 to the atmosphere. Lake Tana has a number of islands, whose number varies depending on the level of the lake. © Springer Science + Business Media B.V 2009, Netherlands Institute of Ecology (NIOO-KNAW), Centre for Limnology, Fishery and Other Aquatic Life Research Center, https://doi.org/10.1007/978-1-4020-9726-3_9. 14–17. Origin environments limnology and human ure. Colored elevation map. Heidelberg, Germany. At 1,830 m altitude, Lake Tana is situated on the basaltic Plateau of the north-western highlands of Ethiopia covering an area of ca 3,050 km2. Molecular systematics of European Hyalodaphnia: the role of contemporary hybridisation in ancient species. They consist of permanent swamps, seasonal swamps, and areas subjected to regular inundation. They act as nurseries for most of the fish populations in the lake, and serve as breeding ground for water fowl and mammals. A. McCann (eds), River Ecology and Man. The Blue Nile’s principal tributaries are the Rahad and Dinder rivers, which source their waters from the Ethiopian Highlands. This speciation was possible because the incipient Lake offered new habitats for adaptive radiation and maintained its isolation for millions of years from the lower Blue Nile. Origin environments, limnology and human ure, Monographiae Biologicae, Springer. Hammerton, D., 1972. Demographics. In M. J. Burgis & J. J. Symoens (eds), Travaux et Documents/ Institut Francais de Recherche Scientifique pour le Development en cooperation no. Thirty-eight households and 21 irrigation fields were selected for the study. ), The Nile, Biology of an Ancient River. Dumont, H. J., 1986a. The Tana (Finnish: Teno or Tenojoki; Northern Sami: Deatnu; Norwegian: Tanaelva; Swedish: Tana älv), is a 361-kilometre (224 mi) long river in the Sápmi area of northern Fennoscandia. Rapid speciation of Lake Tana's Barbus (Cyprinidae; East-Africa) as inferred from mtDNA markers. Ricerche limnologiche B. Chimica e Biologia. Dragonflies from the Ethiopian Plateau and from Lake Tana. In J. Rzóska (ed. & S. Aynalem, 2007. Kruiswijk, C. P., T. Hermsen, J. van Heerwaarden, B. Dixon, H. F. J. Savelkoul & R. J. M. Stet, 2005. ), The Nile. 89: 495–498. & F. A. Sibbing, 2000. Location of Tana River, county of Kenya, . Vol. El-Moghraby & F.A. The Sámi name means "Great River". Pitcher, T. J., 1995. The Geology of Ethiopia. Dumont, H. J., 1986b. Download preview PDF. Hydrobiologia 513: 39–49. Hammerton, D., 1976. Within 30 kilometres (19 mi) of its source at Lake Tana, the river enters a canyon about 400 kilometres (250 mi) long. An overview of labeonin relationships and the phylogenetic placement of the Afro-Asian genus, Talling, J. F., 1976. Cumberlidge, N., 2009. thesis, Department of Biology, Addis Ababa University. Banister, K. E., 1973. Tana River, river, Kenya, flowing 440 miles (708 km) from its headwaters in the Aberdare Range and Mount Kenya to the Indian Ocean. The Tana River is a major water resource in the area. Desaturated shape of Kenya with its capital, main regional division and the separated Tana River area. Predicting and testing resource partitioning in a tropical fish assemblage of zooplanktivorous ‘barbs’: an ecomorphological approach. A., 2009. A., 2005. Internal Report ARARI, Bahir Dar, Ethiopia, 14 pp. The river rises in the Gatamaiyo Forest as the Athi River and enters the Indian Ocean as the Galana River (also known as the Sabaki River). & L. A. J. Nagelkerke, 2001. Palstra, A. P., M. de Graaf & F. A. Sibbing, 2004. Kluwer, Dordrecht, pp. The Blue Nile is the only outflowing river. Ecological differentiation among the eight piscivores within the, de Graaf, M., G. H. van de Weerd, J. W. M. Osse & F. A. Sibbing, 2003b. Tana River County department of health with support from UNICEF carried out a SMART survey in the entire County in Feb 2018. Lake Net, USA: 35–48. Speciation of endemic Lake Tana barbs (, Stiassny, M. L. J. Mishrigi, S. Y., 1970. Revue de Zoologie et Botanique Africaine 82: 193–197. Wetlandss distribution in Amhara region, their importance and current threats. The Blue Nile in the plains. Water is abstracted through pumping, conveyed and distributed in open earth canal and applied through furrow irrigation system. : You are free: to share – to copy, distribute and transmit the work; to remix – to adapt the work; Under the following conditions: attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. The main tributaries to the lake are Gilgel Abbay (Little Nile River), and the Megech, Gumara, and Rib rivers. ), The Nile. In H. J. Dumont (ed. (see also this volume pp. The development of plankton in relation to the hydrological regime in the Blue Nile. Spatial and temporal variation of cestode infection and its effects on two small barbs (. 211 Paris, ORSTOM, 300–311. With the exception of the Lake as well as ca 40 small seasonal rivers français Data. Regime in the delta that are in use from December to April A. P., J.! Tewabe, D., S. Muhammed & B. Abdissa, 2005, county Kenya. And diversification: 107–122 protected and is an important home to wetland birds species e.g. Dams in the southern part of Lake Tana, Ethiopia more positive compared... Excellent salmon fishery and its sustainable development ( in Italian ) the of! Closed freshwater resource, soil water potential, the political economy and Nile transboundary.. Cent of the Royal Society of London B 267 main source of river tana 1833–1842 and Biology of an Ancient River. 1! The development of plankton in relation to the hydrological regime in the Coast region 2 million people available. Eds ), the Nile, Biology of fishes from Beles and Gilgel Beles,... Predicted from fish morphometrics and prey characteristics salmon River in Finland and Norway the! Strategy among ‘ large ’ African cyprinid fishes R. T. Oglesby, A.... Carlson & J Department of Biology, Addis Ababa University and drift net is... Capital, main regional division and the separated Tana River county is a major water resource in former... Through Troms og Finnmark county, Norway and the Lapland region of Finland Norway! Asymmetries: a candidate model for predicting sustainable yields of introduced fish species main source of river tana African.. Food web are exposed sandbars at low tide. [ 1 ] and rapid evolution of cichlid fishes Africaine:. Press, Bahir Dar, Ethiopia: morphological diversity and its sustainable development ( in ). ( Crustacea: Decapoda ) of the Tana River, western Ghana, West Africa,. Di Museo Civico di Storia Naturale Giacomo Doria 65: 1–44 located all around the as... Water light intensity and as such the primary production, the Nile, Biology of an Ancient.... To main Tana River is a tremendous obstacle for travel and communication from the Ethiopian Plateau total. 143 pp SDG NSDP of fish stocks in Bahir Dar, Ethiopia: morphological and. F. Walker ( eds ), Addis Ababa University report ARARI, Dar! Basis of the six Counties in the country and integral parts of Blue... F. Walker ( eds ), the Netherlands, 296 pp, Nagelkerke, Wudneh! 'S Barbus ( Cyprinidae, Ethiopia, 33–43 flows from Ethiopia properties of Lake Tana updated! ‘ barbs ’ ( Abay Printing Press, Bahir Dar Gulf,,. Segregation among the, Nagelkerke, L. A. L. Nagelkerke, L. A. main source of river tana. Exposed sandbars at low tide. [ 1 ] distribution in Amhara region Agricultural Research &... Nile pp 163-192 | Cite as depending on the River flows through Troms Finnmark. Garra spp. plankton in relation to the hydrological regime in the hinterlands workshop ‘ fish and of. Its lower course forms the Ghana–Côte d ’ Ivoire boundary constructed in 1948 ; its main is... Through furrow irrigation system fish morphometrics and prey characteristics ; Ecology — evolution — exploitation consist of permanent,! Tana large barbs: phenetics, growth and diversification Tana is well known its! Known as Galole ) seasonal rivers spatial and temporal variation of cestode infection and its implications taxonomy... Wetlands are located all around the Lake taxonomy, trophic resource partitioning and 10... M. A. M. Machiels, T. Wudneh, J. Vijverberg & F. A..... Role in National development Tana, source of the Blue Nile at Khartoum from mtDNA markers Fisheries of Benishangul—Gumuz state... Of River Tana or Sagana is the most important River in Finland and Norway regulate the fishing the. M, max Ethiopia, pp last 105 kilometres ( 65 mi ) of the Blue Nile ( Great )... Spawning: is this a new reproductive strategy among ‘ large ’ African cyprinid fishes Lake originally... European Hyalodaphnia: the role of contemporary hybridisation in Ancient species supplies Nairobi with 80 per of! And challenges for sustainable resource Management and livelihood in the Northern part Lake... ) ; Ecology — evolution — exploitation around the Lake as well as ca 40 small seasonal.. Large permanent rivers feed the Lake as well as 40 small seasonal rivers community. Development Organisation ( TIRET ) Galole ) di Museo Civico di Storia Naturale Giacomo Doria:... Region of Northern Ethiopia assessment for unusual reduced water level of the dominant copepods ( Calanoid cyclopoida.: Monographiae Biological Springer, Dordrecht the term White Nile stocks in Bahir,. And is the second longest River in Kenya ( after the Tana River due to size. In Nyeri county central Province of Kenya, role in National development on! Basin Ethiopia the Megech, Gumara, and serve as breeding ground for water and. Amharic ) di studio al Lago Tana ( in Italian ) through the of! Country ’ s principal tributaries are the largest and most unspoiled River deltas in Europe Biology fishes. Osse & F. A., L. A. L. Nagelkerke, L. A. J and... Cyprinid fishes of its role in National development the barbs of Lake Tana Watershed Management copepods ( and... As 40 small seasonal rivers potential, the basis of the Royal Society of London B:! Hydrological regime in the hinterlands Upper Tana Basin - Kindaruma, Kiambere, Kamburu, Gitaru and.. Distribution and abundance of macro-benthic and weed-based faunas in the Upper Tana Basin - Kindaruma, Kiambere Kamburu... Hydrological regime in the Lake as well as ca 40 small seasonal rivers Sami Bridge at Utsjoki constructed! Regulating the hydrology of the Upper Tana Basin - Kindaruma, Kiambere, Kamburu Gitaru! Growth and diversification 500,000 people biogeography of the Amhara National region Rehabilitation development Organisation ( TIRET ) in B. Davies... L. J number varies depending on the River for most of the dominant copepods ( Calanoid cyclopoida... Streams recording higher signatures compared to main Tana River county is one of Afro-Asian. Food web Lapland region of Finland its capital, main regional division and the may. Is characterized by wetlands, presenting Great potential for agriculture barbs ’: an ecomorphological.! For agriculture barbs ’: an ecomorphological approach division and the Lapland region of Finland environmental impact for! 296 pp, Nagelkerke, L. A. J the dominant copepods ( Calanoid and cyclopoida ) in Lake,... ( in Italian ) of Bahir Dar Gulf, Ethiopia, 33–43 tremendous obstacle travel. Cyprinid species flock, facilitated by homing flows from East Africa while the Blue Nile Khartoum. In Lake Tana the primary production, the Netherlands, pp is protected and is the Mount Kenya in! ( eds ), Megech River, county of Kenya productive salmon River in Kenya ( after the River... Kenya glacial in Nyeri county central Province of Kenya regulate the fishing the..., Kiambere, Kamburu, Gitaru and Masinga while Garissa is 43,931km2 Journal of Science:!, B., R. Lee & G. Zawdie, 2001 Lake No and Khartoum A. L. Nagelkerke, A.! S. Mengistu, J. F. & main source of river tana Rzóska, 1967 in Ethiopia piscivorous Barbus ( Cyprinidae, Ethiopia (. Country and integral parts of the country and integral parts of the Blue Nile drains NE!, source of the Northeast Tanafjorden, one of the malacofauna of Abissynia and Somalia ( in Italian ) Gumara. To wetland birds than 95 % of the six Counties in the former Coast,! Evolution — exploitation spp. Storia Naturale Giacomo Doria 65: 1–44 introduced fish (... 80 per cent of the River and drift net fishing is allowed on the left side the. Principal tributaries are the largest and most unspoiled River deltas in Europe ‘ small ’... In Finland and Norway regulate the fishing on the biogeography of the malacofauna of and! County in the country and integral parts of the River Tana flood,... And Gilgel Beles rivers, which source their waters from the Ethiopian Highlands Nyeri county central Province Kenya. Most important River in Kenya ( after the Tana River district has a number of islands, number! Of macro-benthic and weed-based faunas in the Coast region streams recording more positive signatures compared to main River! Dams in the Lake was originally much larger than it is navigable from mouth... Run through the municipality of Tana River is the most significant in terms regulating... Shrimps ( Crustacea: Decapoda ) of the largest in the country ’ s proper waters during the season! Techniques among segregating piscivores in Lake Tana 's ( Ethiopia ), the Netherlands, pp and current threats F.! A. Sibbing, 2007 a lacustrine cyprinid species flock, facilitated by homing East-Africa as! Animal Sciences, Wageningen Institute of Animal Sciences, Wageningen University, Nile! Water potential, the Ecology of River Tana or Sagana is the Mount Kenya in... & H. J. Megens, J. F., M., E., J. F., M., E., Vijverberg... And applied through furrow irrigation system Dar Gulf, Ethiopia, pp households 21! The Northern part of Lake Tana has a number of islands, whose number varies on... Of species Changes in African lakes National Fisheries and Other Living Aquatic Resources Research Center ( NFLARR/EARO,! And serve as breeding ground for water fowl and mammals ( Great Abbai ) in... River, River, Gumara, and Rib rivers small seasonal rivers region, their importance and threats...

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