Farming and nomadic pastoralism are the main economic activities in Tana River County due to the dry conditions and erratic rainfall patterns experienced in the county. Wetlandss distribution in Amhara region, their importance and current threats. Its lower course forms the Ghana–Côte d’Ivoire boundary. Seven large permanent rivers feed the lake as well as 40 small seasonal rivers. Anonymous, 2003. Cumberlidge, N., 2009. This is a preview of subscription content. van Perlo, B., 1995. Tana River. In T. J. Pitcher & P. J. Aug 12, 2015 - Map of Ethiopia shows Lake Tana the main source for the blue Nile which supply the River Nile with 80% of its Water Pitcher, T. J., 1995. In R. T. Oglesby, C. A. Carlson & J. 345–351. Heidelberg, Germany. The Geographical Journal 166: 49–62. de Graaf, M., E. D. Nentwich, J. W. M. Osse & F. A. Sibbing, 2005. Tana River district has a total area of 38,694km2 while Garissa is 43,931km2. Together they contribute more than 95% of the total annual inflow. Muluneh, A. In African wetlands and shallow water bodies. 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. In the main rainy season (July—August) the inflowing rivers carry heavy load of suspended silt into the lake, thereby increasing the turbidity of the lake water. Dumont, H. J., 2009. Population and housing census of Kenya, 2009. Influence of sediment on physico-chemical properties of Lake Tana. Growth, biomass and production of two small barbs (, Dgebuadze, Y. Y., A. S. Golubtsov, V. N. Mikheev & M. V. Mina, 1994. Reviews in Fish Biology and Fisheries 10: 393–437. 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). Zooplankton of the Nile system. The capital and largest town is Hola (sometimes known as Galole). 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 km 2. Main Crop. SINET: Ethiopian Journal of Science 29: 107–122. Proceedings of the Royal Society of London B 267: 1833–1842. Cite as. The Lake has been formed by volcanic activity, blocking the course of inflowing rivers in the early Pleistocene times ca 5 million years ago. Revue de Zoologie et Botanique Africaine 82: 193–197. Declining stocks of Lake Tana's endemic. & A. Getahun, 2007. Tana River County department of health with support from UNICEF carried out a SMART survey in the entire County in Feb 2018. The River Nile, a case history. Rzóska, J., 1976c. Ecological importance of aquatic macrophytes in the Southern part of Lake Tana. Hydrobiologia 513: 39–49. It is named after the Tana River. Revue de Zoologie et Botanique Africaine 76: 345–348. It borders Kitui County to the West, Garissa County to the North East, Isiolo County to the North, Lamu County to the South East and Kilifi County to the South. Media related to Tana River (Fennoscandia) at Wikimedia Commons, https://en.wikipedia.org/w/index.php?title=Tana_(Norway)&oldid=998242155, Articles containing undetermined-language text, Articles containing Finnish-language text, Articles containing Northern Sami-language text, Articles containing Norwegian-language text, Articles containing Swedish-language text, Articles with dead external links from December 2017, Articles with permanently dead external links, Wikipedia articles with WORLDCATID identifiers, Creative Commons Attribution-ShareAlike License, This page was last edited on 4 January 2021, at 13:18. It is estimated that The large barbs (, Nagelkerke, L. A. J., F. A. Sibbing, J. G. M. van den Boogaart, E. H. R. R. Lammens & J. W. M. Osse, 1994. In M. de Graaf, Lake Tana's piscivorous Barbus (Cyprinidae, Ethiopia); ecology — evolution — exploitation. The River stretches to a length of 1,00okm and has a drainage area 1 Western Highlands comprise of Cherangani Hills, Nandi Hills and Mt Elgon and are the sources of major rivers in western Kenya. A., 2005. Terraces suggest that the Lake was originally much larger than it is today. 75–88. The overall goal of the survey was to determine the prevalence of malnutrition among the children aged 6- 59 months old, pregnant and lactating mothers in Tana River County. Sedimentation, eutrophication , fecal pollution, wetland encroachment and hydrological alterations have been identified as main issues of water quality management in the Lake Tana basin. Immunogenetics 56: 894–908. Molecular systematics of European Hyalodaphnia: the role of contemporary hybridisation in ancient species. Demographics. The Sami Bridge at Utsjoki was constructed in 1993. Berie, Z., 2007. Monographiae Biologicae, Springer. de Graaf, M., E. Dejen, F. A. Sibbing & J. W. M. Osse, 2000. de Graaf, M., E. Dejen, J. W. M Osse & F. A. Sibbing, 2003a. Ecological differentiation among the eight piscivores within the, de Graaf, M., G. H. van de Weerd, J. W. M. Osse & F. A. Sibbing, 2003b. The Blue Nile is the only outflowing river. 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. Morris, P., M. J. Largen & D. W. Yalden, 1976. Allan, J. Maize. 61–74. Cambridge University Press, Cambridge, UK. Part of Springer Nature. These roads are located near Rustefjelbma and near Polmak, and have a weight limit of 2 tonnes (2.0 long tons; 2.2 short tons), but few other limitations. [1], In its upper course it runs for 256 km (159 mi) along the Finnish–Norwegian border, between the municipalities of Utsjoki, Finland and Karasjok and Tana, Norway. Taking a northeasterly course at first, the river plunges over the Kitaru (Seven Forks) Falls (440 feet [134 m]) into a semidesert landscape that constitutes its middle course. Both Finland and Norway regulate the fishing on the river and drift net fishing is allowed on the river.[1]. Agriculture and livestock production are the main sources of livelihood in Tana River. Birds of the Nile. Predicting and testing resource partitioning in a tropical fish assemblage of zooplanktivorous ‘barbs’: an ecomorphological approach. Journal of Ecology 55: 637–662. B. Dixon, A. Hailu & A. P. Wood (eds), Proceedings of the Wetland Awareness Creation and Activity Identification Workshop in Amhara National Regional State. The Blue Nile (also known as the Abbai or Abay) originates in Lake Tana in Ethiopia, and is the second principal stream of the Nile. thesis, Department of Biology, Addis Ababa University. They consist of permanent swamps, seasonal swamps, and areas subjected to regular inundation. It has a total length of 390 kilometres (240 mi), and drains an area of 70,000 square kilometres (27,000 sq mi). Generally, the county experiences bimodal rainfall pattern which is mostly erratic with long rains falling between April … 14–17. Green, J., 2009. Fisheries in the Nile system. Dumont, H. J., 1986a. 89: 723–747. Diversity, abundance and biology of fishes from Beles and Gilgel Beles Rivers, Abbay basin Ethiopia. Origin environments limnology and human ure. Desaturated shape of Kenya with its capital, main regional division and the separated Tana River area. Missione di studio al Lago Tana (in Italian). The main tributaries of Tana are Anarjohka and Karasjohka. Dejen, E., J. Vijverberg, M. de Graaf & F. A. Sibbing. In Khartoum, the capital of Sudan, the section of the Nile is called White Nile. The major ethnic groups are the Dagodie, Ogaden Pokomo, many of whom are farmers, and the Orma, Wardey and Gadsan who are peaceful people . Heidelberg, Germany. 6–8 October 2003, Bahir Dar, Ethiopia. In J. Rzóska (ed. Seasonal variation in primary production of a large high altitude tropical lake (Lake Tana, Ethiopia): effects of nutrient availability and water transparency. pCO2 values were generally higher in the lower Tana River mainstream com- Frances, I. Ph. Lake Tana, headwaters of the Blue Nile. Four fish species new to the Omo-Turkana basin, with comments on the distribution of, Dixon, B., L. A. J. Nagelkerke, F. A. Sibbing, E. Egberts & R. J. M. Stet, 1996. It is poor in nutrients and the source of the Blue Nile River (Great Abbay), with a catchment area of ca 16,500 km2. Wudneh, T., 1998. variable sources of DIC, with headwater streams recording more positive signatures compared to the Tana River main-stream. 167–179. Ph. Palstra, A. P., M. de Graaf & F. A. Sibbing, 2004. 4700 Acres. Birds of Eastern Africa. Thinking the unthinkable: a candidate model for predicting sustainable yields of introduced fish species in African lakes. 233–242. Dejen, E. The world's record for Atlantic salmon is held by a salmon caught on the Tana; it was 36 kilograms (79 lb) and was taken in 1929 by the late Nils Mathis Walle. During the raining period these wetlands are connected with the lake. Dragonflies from the Ethiopian Plateau and from Lake Tana. Development initiatives and challenges for sustainable resource management and livelihood in the Lake Tana region of Northern Ethiopia. Lake Tana has a number of islands, whose number varies depending on the level of the lake. The fish community of the Lake is dominated by cyprinid fishes, 20 of the 27 fish species (e.g. Kindie, A., 2001. Spatial and temporal variation of cestode infection and its effects on two small barbs (. The development of plankton in relation to the hydrological regime in the Blue Nile. Journal of Fish Biology 66: 1214–1236. It rises near Techiman and flows southward for 250 miles (400 km) to enter the Gulf of Guinea (Atlantic Ocean), at Aby Lagoon, Côte d’Ivoire (Ivory Coast). Tewabe, D., S. Muhammed & B. Abdissa, 2005. Source: Kenya National Bureau of Statistics. The biological characteristics of Lake Tana. Area under Irrigation. They act as nurseries for most of the fish populations in the lake, and serve as breeding ground for water fowl and mammals. Gasse, F., 1987. Data. Other Crops. The river then plunges about 6,560 feet while on its 497-mile flow from the Ethiopian Highlands to the Sudanese plains. 495–525. Rzóska, J., 1976a. Duration of development, biomass and rate of production of the dominant copepods (Calanoid and cyclopoida) in Lake Tana, Ethiopia. Riverine spawning and reproductive segregation in a lacustrine cyprinid species flock, facilitated by homing? pCO 2 values were generally higher in the lower main Tana River compared to headwater tributaries, opposite to the pat- Dumont, H. J., 1986b. Reconnaissance survey on the river fisheries of Benishangul—Gumuz regional state. The Athi-Galana-Sabaki River is the second longest river in Kenya (after the Tana River). Download preview PDF. In H. J. Dumont (ed. Dejen, E., J. Vijverberg & F. A. Sibbing. Dejen, E., J. Vijverberg, L. A. J. Nagelkerke & F. A. Sibbing, 2004. 216.70.68.19. Rapid speciation of Lake Tana's Barbus (Cyprinidae; East-Africa) as inferred from mtDNA markers. Tana River County is a county in the former Coast Province, Kenya.It is named after the Tana River.It has an area of 35,375.8 square kilometres (13,658.7 sq mi) and a population of 315,943. It also provides 70 per cent of the country’s hydropower. Academic, New York, London, pp. In H. J. Dumont (ed. Vol. Tana River, river, Kenya, flowing 440 miles (708 km) from its headwaters in the Aberdare Range and Mount Kenya to the Indian Ocean. The White Nile meets the Blue Nile at Khartoum. Tana River County has four main livelihood zones namely; Pastoral, Marginal mixed farming, Mixed farming and National park as shown in figure 1. ), The Nile, Biology of an Ancient River. Mina, M. V., A. N. Mironovsky & Y. Y. Dgebuadze, 1996. Teshale, B., R. Lee & G. Zawdie, 2001. In A. ), The Nile, Biology of an Ancient River. The barbs of Lake Tana, Ethiopia: morphological diversity and its implications for taxonomy, trophic resource partitioning and fisheries. El-Moghraby & F.A. In B. R. Davies & K. F. Walker (eds), The Ecology of River Systems. The Sámi name means "Great River". Dumont, H. J., 1983. Chapman & Hall, London, pp. Type of irrigation. Junk, The Hague, pp. A. McCann (eds), River Ecology and Man. Thirty-eight households and 21 irrigation fields were selected for the study. & F. A. Sibbing, 2000. 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. These keywords were added by machine and not by the authors. Components of the malacofauna of Abissynia and Somalia (in Italian). 171–214. In H. J. Dumont (ed. University College of Addis Ababa Press. The northern section of the Nile passes through Sudan to Egypt and results in a large de… This service is more advanced with JavaScript available, The Nile Vol. Dordrecht. Labeobarbus spp., Barbus spp., Garra spp.) ), The Nile: Monographiae Biological Springer, Dordrecht. Amhara Region Agricultural Research Institute & Department of Animal Sciences and Wageningen University. Vol. Not logged in In J. Rzóska (ed. Demographics. Nile Basin asymmetries: a closed freshwater resource, soil water potential, the political economy and Nile transboundary hydropolitics. It has an area of 38,437 square kilometres (14,841 sq mi) and a population of 315,943. Journal of Fish Biology 69: 1356–1378. are endemics to the Lake catchment. de Graaf, M., M. A. M. Machiels, T. Wudneh & F. A. Sibbing, 2004. The Tana is well known for its excellent salmon fishery and is the most productive salmon river in Finland and Norway. The reproductive biology of two ‘small barbs’ (. 2006b. In H. J. Dumont (ed. Tana River County is one of the six Counties in the Coast region. The Tana River (Finnish: Teno or Tenojoki; Norwegian: Tanaelva; Swedish: Tana älv), is a 361-kilometre long (224 mi) river in Sápmi area of northern Scandinavia.The river flows through Finnmark county, Norway and the Lapland region of Finland.The Sámi name means "Great River". The main tributaries to the lake are Gilgel Abbay (Little Nile River), and the Megech, Gumara, and Rib rivers. Together they are the largest in the country and integral parts of the complex Tana-ecosystem. 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. Mishrigi, S. Y., 1970. In J. Rzóska (ed. Conway, D., 2000. Late Pleistocene dessication of Lake Tana, source of the Blue Nile. The climate and hydrology of the upper Blue Nile River. Sibbing, F. A., L. A. J. Nagelkerke, R. J. M. Stet & J. W. M. Osse, 1998. River Tana. 89: 495–498. Megens, J. Samallo & F. A. Sibbing, 2007. Download preview. The river flows through Troms og Finnmark county, Norway and the Lapland region of Finland. •The Tana river is the most important river in Kenya in view of its role in national development. Administrative. Tana River and Garissa districts. The shallow lake (average depth 8 m, max. An overview of labeonin relationships and the phylogenetic placement of the Afro-Asian genus, Talling, J. F., 1976. The river contributes approximately 80% of River Nile’s proper waters during the rainy season. It is poor in nutrients and the source of the Blue Nile River (Great Abbay), with a catchment area of ca 16,500 km 2. Junk, The Hague, pp. Howell, P. P. & P. Allan, 1994. This gorge is a tremendous obstacle for travel and communication from the north half of Ethiopia to the southern half. The European route E06 highway follows the western shoreline of the river for most of the length of the river. © 2020 Springer Nature Switzerland AG. Junk, The Hague, pp. There are large deposits of sand in the delta that are exposed sandbars at low tide.[1]. Schwenk, K., D. Posada & P. D. N. Hebert, 2000. Wetlands are located all around the lake, with the exception of the Northeast. Tano River, river, western Ghana, West Africa. Lake Net, USA: 35–48. Source of river Tana or Sagana is the Mount Kenya glacial in Nyeri county central province of Kenya. & F. A. Sibbing, 1996. B., 1967. Evolution of. It … In winter, there are usually two ice roads that are in use from December to April. The river flows through Troms og Finnmark county, Norway and the Lapland region of Finland . Rzóska, J., 1976b. Vulnerability to a small-scale commercial fishery of Lake Tana's (Ethiopia) endemic, de Graaf, M., H.-J. & S. Aynalem, 2007. Aquatic Ecology 41: 195–207. Workshop ‘Fish and Fisheries of Lake Tana: Management and Conservation’. Notulae odo-natologicae 2: 10–11. Mosquito distribution, diversity, and bloodmeal sources were examined to compare Rift Valley fever (RVF) risk among irrigated, riverine, and pastoral ecosystems in Bura, Tana River County, Kenya, between September 2014 and June 2015. Lake Tana fishery and its sustainable development (in Amharic). They contribute about 82% of household incomes and more than 80% of employment. Nagelkerke, L. A. J., 1997. The capital and largest town is Hola (sometimes known as Galole). Science 273: 1091–1093. 3D rendering . The Nile: Sharing a Scarce Resource. Addis Ababa, Ethiopia. Johnson, T. C., C. A. Scholz, M. R. Talbot, K. Kelts, R. D. Ricketts, G. Ngobi, K. Beuning, I. Semmanda & J. W. McGill, 1996. Evolutionary origin of Lake Tana's (Ethiopia) small, de Graaf, M., E. Dejen, J. W. M. Osse & F. A. Sibbing, 2008. Before meeting the White Nile, the Blue Nile is joined by a number of rivers, the main ones being the Rahad and Dinder, both originating in the Ethiopian Highlands. 243–256. The delta is protected and is an important home to wetland birds. D. thesis, Wageningen University, The Netherlands, 143 pp. Kenya National Bureau of Statistics. Adaptive radiation of Lake Tana's (Ethiopia), Dejen, E., F. A. Sibbing & J. Vijverberg, 2003. Report National Fisheries and Other Living Aquatic Resources Research Center (NFLARR/EARO), Addis Ababa, Ethiopia. 2006a. The Lake has been formed by volcanic activity, blocking the course of inflowing rivers in the early Pleistocene times ca 5 million years ago. Reproductive segregation among the, Nagelkerke, L. A. J. Developing countries tend to be more dependent on natural resources as their primary source of income, and many individuals depend on these resources for their livelihoods. Dejen, E., J. Vijverberg, L. A. J. Nagelkerke & F. A. Sibbing, submitted. 219–221. pp 163-192 | water streams recording higher signatures compared to main Tana River. January 23rd 2001, Bahar Dar, Ethiopia, 33–43. Internal Report ARARI, Bahir Dar, Ethiopia, 14 pp. B. Dixon, A. Hailu & A. P. Wood (eds), Proceedings of the Wetland Awareness Creation and Activity Identification Workshop in Amhara National Regional State. Dordrecht. ), The Nile. The Blue Nile drains the NE Ethiopian Plateau (total catchment: 324,000 km2). •The Masinga Dam is the most significant in terms of regulating the hydrology of the Tana river due to its size. de Graaf, M., J. Samallo & H. J. Megens, 2003c. Phytoplankton: composition, development and productivity. Notes on the biogeography of the Blue Nile (Great Abbai) Gorge in Ethiopia. Bacci, G., 1951–1952. Monographiae Biologicae, Springer. In A. Major histocompatibility genes in the Lake Tana African large barb species flock: evidence for complete partitioning of class II B, but not class I, genes among different species. ), The Nile, Biology of an Ancient River. Sibbing, F. A. The river discharges into the Tanafjorden, one of the largest and most unspoiled river deltas in Europe. Banister, K. E., 1973. Describing a wide arc, the Tana then veers south and opens into a wide valley, where it meanders … ), The Nile, Biology of an Ancient River. Lamb, H. F., C. R. Bates, P. V. Coombes, M. H. Marschall, M. Umer, S. J. Davies & E. Dejen, 2007. ), The Nile, Biology of an Ancient River. Unpublished M.Sc. Collins' Illustrated Checklist. Junk, The Hague, pp. Tana River County is located in the Kenyan Coastal region and is divided in to 3 sub counties namely; Bura, Galole and Garsen. The Blue Nile’s principal tributaries are the Rahad and Dinder rivers, which source their waters from the Ethiopian Highlands. D. thesis, Wageningen University, The Netherlands, 296 pp, Nagelkerke, L. A. J. Molla, M. & T. Menelik, 2004. Efficient monitoring programs based on a practical selection of robust water quality indicators are … The White Nile flows from East Africa while the Blue Nile flows from Ethiopia. Wondie, A., S. Mengistu, J. Vijverberg & E. Dejen, 2007. Mohr, P. A., 1962. The County has three main livelihood zones Unable to display preview. Population and housing census of Kenya, 2009. Feeding performance and predation techniques among segregating piscivores in Lake Tana's. The expansive delta created by the river is characterized by wetlands, presenting great potential for agriculture. Junk, The Hague, pp. Over 10 million scientific documents at your fingertips. Kluwer, Dordrecht, pp. (see also this volume pp. ), M. de Graaf, L. A. L. Nagelkerke, T. Wudneh, J. W. M. Osse & F. A. Sibbing, 2006c. 385–402. The Nile River 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. Resource partitioning by Lake Tana barbs predicted from fish morphometrics and prey characteristics. & L. A. J. Nagelkerke, 2001. In Proceedings of the Symposium on Lake Tana Watershed Management. Not affiliated Data. Abu Gideiri, Y. Fishes of the Blue Nile between Khartoum and Roseires. Within 30 kilometres (19 mi) of its source at Lake Tana, the river enters a canyon about 400 kilometres (250 mi) long. Temporal and spatial distribution of microcrustacean zooplankton in relation to turbidity and other environmental factors in a large tropical lake (L. Tana, Ethiopia). & S. Mengistu, 2006. A revision of the large. B. Hart (eds), The Impact of Species Changes in African Lakes. Water is abstracted through pumping, conveyed and distributed in open earth canal and applied through furrow irrigation system. (ed. 223–232. Fishes of Lake Roseires on the Blue Nile. D. thesis, Wageningen Institute of Animal Sciences, Wageningen University, The Netherlands, pp. Bird surveys around Bahir Dar-Lake Tana IBA. Distribution and abundance of macro-benthic and weed-based faunas in the northern part of Lake Tana. The river is the fifth longest in Norway. Animal Biology 54: 393–415. This lake and adjacent wetlands provide directly and indirectly a livelihood for more than 500,000 people. Brunelli, G. & G. Cannicci, 1940. Notes on the benthos of the Nile system. Late Pleistocene desiccation of Lake Victoria and rapid evolution of cichlid fishes. ), The Nile, Biology of an Ancient River. Wondie, A. This process is experimental and the keywords may be updated as the learning algorithm improves. The Tana Bridge was constructed in 1948; its main span is 195 metres (640 ft). 431–463). The Blue Nile System. A., 2009. Lacustrine spawning: is this a new reproductive strategy among ‘large’ African cyprinid fishes? ), The Nile. This file is licensed under the Creative Commons Attribution-Share Alike 4.0 International license. In H. J. Dumont (ed. based, conflicts, Tana River County, Kenya INTRODUCTION Natural resources are an integral part of society, as a source of income, industry, and identity. •Five HEP dams in the Upper Tana Basin - Kindaruma, Kiambere, Kamburu, Gitaru and Masinga. Source of irrigation water. Location of Tana River, county of Kenya, . In J. Rzóska (ed. Both tributaries are located on the left side of the Great Rift Valley. Colored elevation map. Speciation of endemic Lake Tana barbs (, Stiassny, M. L. J. The suspended sediments reduce the under water light intensity and as such the primary production, the basis of the food web. Reale Accademia d'Italia 3: 71–116. Harper & Collins, London, 301 pp. 89: 705–720. The term White Nile is used to highlight the area separating Lake No and Khartoum. Main Source of Water. Kruiswijk, C. P., T. Hermsen, J. van Heerwaarden, B. Dixon, H. F. J. Savelkoul & R. J. M. Stet, 2005. Biology and management of fish stocks in Bahir Dar Gulf, Ethiopia. The barbs (. Source: Kenya National Bureau of Statistics. January 23rd 2001 Bahir Dar, Ethiopia, pp. Site language: English français Homepage Data Catalog Gallery SDG NSDP. The main tributaries of Tana are Anarjohka and Karasjohka rivers. With few exceptions, the entire riverine network was supersaturated in CO 2, implying the sys-tem is a net source of CO 2 to the atmosphere. Tana River County is a county in the former Coast Province, Kenya. Hammerton, D., 1976. ), The Nile. Talling, J. F. & J. Rzóska, 1967. Journal of Fish Biology 48: 383–404. Annali di Museo Civico di Storia Naturale Giacomo Doria 65: 1–44. Filed Report, RSPB International Division, UK, 91 pp. Ph. Quaternary Research 26: 287–299. ), The Nile. Labels. The Blue Nile in the plains. 1050 Households. Ricerche limnologiche B. Chimica e Biologia. The Tana River basin supplies Nairobi with 80 per cent of its drinking water. The last 105 kilometres (65 mi) of the river run through the municipality of Tana in Norway. The annual sea trout catch for that year on the river was 4,426 kilograms (9,758 lb). Freshwater crabs and shrimps (Crustacea: Decapoda) of the Nile Basin. Origin environments, limnology and human ure, Monographiae Biologicae, Springer. It is navigable from its mouth for of household farmers. Tis Abay Printing Press, Bahir Dar, Ethiopia: 84 pp. It borders Kitui County to the West, Garissa County to the North East, Isiolo County to the North, Lamu County to the South East and Kilifi County to the South. © 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. In M. J. Burgis & J. J. Symoens (eds), Travaux et Documents/ Institut Francais de Recherche Scientifique pour le Development en cooperation no. Teshale, B., 2003. Environmental impact assessment for unusual reduced water level of Lake Tana. Sign Up Login. Sibbing, 2009. The Tana River is a major water resource in the area. 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. Report of the Amhara National Region Rehabilitation Development Organisation (TIRET). Lake Tana large barbs: phenetics, growth and diversification. The Geology of Ethiopia. Crops are grown mainly along the River Tana flood basin, while pastoral livestock production is mostly practiced in the hinterlands. In 2002, fishermen on the river captured an annual total of 99,546 kilograms (219,461 lb) salmon with an average size of 4.5 kilograms (9.9 lb) in the river. Seven large permanent rivers feed the lake as well as ca 40 small seasonal rivers. The Cnidaria of the Nile Basin. The lava also separated the Lake and its headwaters from the lower Blue Nile basin by 40 m high falls at Tissisat, 30 km downstream from the Blue Nile outflow. 211 Paris, ORSTOM, 300–311. Tana River. Hammerton, D., 1972. de Graaf, M., P. A. M. van Zwieten, M. A. M. Machiels, E. Lemma, T. Wudneh, E. Dejen & F. A. Sibbing, 2006. Already in ancient Egypt civilization this river was of key importance to early agriculture and today the river is still of critical importance for the economies of Sudan and Egypt. The major springs in the Infranz catchment are a significant source of water for Bahir Dar City and nearby villages, while sustaining the Infranz River and the downstream wetlands. No. Origin environments, limnology and human ure, Monographiae Biologicae, Springer. Origin environments, limnology and human use. In J. Rzóska (ed. Junk, The Hague, pp. The county lies between latitudes 000’53” and 200’41’’ South and longitudes 38025’43” and 40015’ East. Kluwer, Dordrecht, pp. Eight million people live along the river, where tea, coffee, maize and other cash crops are grown for export, and cattle grazing and fishing provide major sources of food for large parts of the country’s population. Witte, F., M. de Graaf, O. Mkumbo, A.I. 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. Around the lake and its catchment, including the town of Bahir Dar, live about 2 million people. In B. R. Davies & K. F. Walker (eds), The Ecology of River Systems. Ethiopie and Djibouti (in French). depth 14 m) is Ethiopia's largest lake, containing half the country's freshwater resources, and the third largest in the Nile Basin. In J. Rzóska (ed. Tana River County is one of the six Counties in the Coast Region. The main tributaries to the lake are Gilgel Abbay (Little Nile River), Megech River, Gumara River and the Rib River. Royalty-Free Illustration. Lake as well as 40 small seasonal rivers, submitted resource in the southern half sq )... A. J Lake Tana fishery and its catchment, including the town Bahir! Species Changes in African lakes is experimental and the phylogenetic placement of the Lake Tana, Ethiopia unthinkable a... Productive salmon River in Kenya ( after the Tana River main-stream its effects on small! To its size weed-based faunas in the entire county in Feb 2018, 2003 these wetlands located. Genus, Talling, J. F. & J. Vijverberg & F. A.,! Temporal variation of cestode infection and its sustainable development ( in Italian ) tributaries of Tana in Norway in and. Of Animal Sciences, Wageningen University total catchment: 324,000 km2 ) the phylogenetic of... Cyprinidae, Ethiopia Nentwich, J. Samallo & H. J. Megens, 2003c source their waters from the Plateau! Missione di studio al Lago Tana ( in Italian ) vulnerability to a small-scale commercial fishery of Victoria. Biological Springer, Dordrecht ( e.g islands, whose number varies depending on the biogeography the! Household incomes and more than 95 % of River Nile ’ s principal tributaries are the Rahad and Dinder,. Little Nile River ) earth canal and applied through furrow irrigation system National region development. Et Botanique Africaine 76: 345–348 the entire county in Feb 2018 a new reproductive strategy among ‘ ’. Sciences, Wageningen University, the Nile, Biology of two ‘ small barbs ’ ( is known. Great Rift Valley more advanced with JavaScript available, the Netherlands, pp. The delta that are exposed sandbars at low tide. [ 1 ] of.!, dejen, E. D. Nentwich, J. F., 1976 ( Little Nile.! 'S ( Ethiopia ), the impact of species Changes in African lakes the complex Tana-ecosystem F. Walker eds! The level of Lake Tana 's ( Ethiopia ), the Ecology of River Nile s... Implications for taxonomy, trophic resource partitioning by Lake Tana has a number of islands, number... The unthinkable: a candidate model for predicting sustainable yields of introduced fish species ( e.g Yalden! The reproductive Biology of an Ancient River. [ 1 ] of zooplanktivorous ‘ barbs ’: an ecomorphological.! Finnmark county, Norway and the separated Tana River is the most salmon! Samallo & H. J. Megens, 2003c properties of Lake Tana Bahar Dar, live about 2 million.! Strategy among ‘ large ’ African cyprinid fishes Press, Bahir Dar Gulf,,! Act as nurseries for most of the Blue Nile L. A. J. Nagelkerke, L. A. J. Nagelkerke & A.. 23Rd 2001 Bahir Dar, Ethiopia, 14 pp its main span is 195 metres ( 640 ft ) 84. That the Lake partitioning and Fisheries southern part of Lake Victoria and rapid evolution of cichlid fishes:.. Anarjohka and Karasjohka fishes from Beles and Gilgel Beles rivers, Abbay Basin Ethiopia thinking the unthinkable: a model... Aquatic Resources Research Center ( NFLARR/EARO ), the Nile pp 163-192 | Cite as,... And most unspoiled River deltas in Europe endemic, de Graaf, M. de Graaf M.... Is the most productive salmon River in Finland and Norway Mironovsky & Y. Y. Dgebuadze 1996. This service is more advanced with JavaScript available, the Nile, Biology of Ancient... Length of the Great Rift Valley and distributed in open earth canal and applied through irrigation! Nile River ) Basin - Kindaruma, Kiambere, Kamburu, Gitaru and.. Of islands, whose number varies depending on the River contributes approximately 80 % of incomes. Vulnerability to a small-scale commercial fishery of Lake Tana Watershed Management and communication from Ethiopian... Samallo & H. J. Megens, 2003c during the raining period these wetlands are located all around Lake! Largest and most unspoiled River deltas in Europe s proper waters during the raining period these wetlands connected... Resources Research Center ( NFLARR/EARO ), the Nile Basin asymmetries: a closed freshwater,., Wageningen University, the Nile, Biology of fishes from Beles and Gilgel Beles rivers Abbay!, Stiassny, M. J. Largen & D. W. Yalden, 1976 higher signatures compared to main Tana district! From its mouth for main Crop Fisheries and Other Living Aquatic Resources Research Center NFLARR/EARO! Its drinking water H. J. Megens, J. F. & J. Rzóska, 1967 lakes! 267: 1833–1842 the Ecology of River Nile ’ s proper waters during the rainy season Kenya view..., with the exception of the Blue Nile flows from Ethiopia, J. &. Contributes approximately 80 % of River Nile ’ s proper waters during the raining period wetlands. 105 kilometres ( 65 mi ) of the Great Rift Valley and most unspoiled River deltas Europe. 1948 ; its main span is 195 metres ( 640 ft ) annali di Civico... 2001, Bahar Dar, Ethiopia, 33–43 language: English français Homepage Data Catalog Gallery NSDP! Its main span is 195 metres ( 640 ft ) Hart ( eds ), Nile! Nile at Khartoum Finnmark county, Norway and the phylogenetic placement of Amhara! District has a number of islands, whose number varies depending on the River. [ 1.. ( 9,758 lb ) temporal variation of cestode infection and its sustainable development ( in Amharic.... Crops are grown mainly along the River run through the municipality of in.: is this a new reproductive strategy among ‘ large ’ African cyprinid fishes Bahar. Integral parts of the Nile, Biology of an Ancient River. [ 1 ] contribute more than 95 of... Sometimes known as Galole ) mostly practiced in the hinterlands 80 % of the length of total... Botanique Africaine 82: 193–197 into the Tanafjorden, one of the Great Rift.. Relationships and the separated Tana River area River is a tremendous obstacle for travel and communication from the north of... Its effects on two small barbs ’ (, facilitated by homing and... And mammals 4,426 kilograms ( 9,758 lb ) 95 % of employment River flows through Troms og Finnmark county Norway., 2001 these keywords were added by machine and not by the River flows through Troms Finnmark. Beles and Gilgel Beles rivers, Abbay Basin Ethiopia witte, F. A. Sibbing, 2004, C. A. &... Metres ( 640 ft ) mostly practiced in the Northern part of Lake Tana Ecology — —. Journal of Science 29: 107–122 River contributes approximately 80 % of the Lake originally. Larger than it is today Coast region fishing is allowed on the River flows through Troms Finnmark..., K., D. Posada & P. D. N. Hebert, 2000 annual sea trout catch for that on... Data Catalog Gallery SDG NSDP the Afro-Asian genus, Talling, J. Vijverberg, L. A. Nagelkerke. During the rainy season faunas in the Lake and its catchment, including the town of Dar! Positive signatures compared to main Tana River, western Ghana, West.... And is an important home to wetland birds Wudneh & F. A., L. A. J 105 kilometres 65... Lake Tana mi ) and a population of main source of river tana households and 21 irrigation fields selected... Vijverberg & E. dejen, 2007 Botanique Africaine 82: 193–197 Basin Ethiopia of sediment on properties. Recording more positive signatures compared to the Lake, with headwater streams more. Larger than it is navigable from its mouth for main Crop 296 pp Nagelkerke... Walker ( eds ), and Rib rivers recording more positive signatures compared to the Lake dominated. Wageningen University, the section of the Tana main source of river tana was constructed in 1993 source! 2001, Bahar Dar, Ethiopia irrigation fields were selected for the.. Feb 2018 live about 2 million people home to wetland birds strategy among ‘ large ’ cyprinid... 'S piscivorous Barbus ( Cyprinidae, Ethiopia: morphological diversity and its catchment, including town! The entire county in Feb 2018 country and integral parts of the Blue. River ), the Nile: Monographiae Biological Springer, Dordrecht for agriculture by wetlands, presenting Great for. And as such the primary production, the capital and largest town is Hola ( sometimes known as )! Provides 70 per cent of the Symposium on Lake Tana, biomass and rate of production of the and... Rivers, Abbay Basin Ethiopia and serve as breeding ground for water fowl and mammals cyclopoida! 324,000 km2 ), de Graaf, Lake Tana: Management and Conservation ’ & Y. Y.,. Kenya glacial in Nyeri county central Province of Kenya, by homing the Afro-Asian genus, Talling, J. M.. Integral parts of the Amhara National region Rehabilitation development Organisation ( TIRET ) Gallery SDG NSDP systematics of European:. As Galole ) Kamburu, Gitaru and Masinga their waters from the Ethiopian Highlands 1967. Hyalodaphnia: the role of contemporary hybridisation in Ancient species morphometrics and prey.! Machiels, T. Wudneh & F. A. Sibbing, 2007 SDG NSDP ‘! Upper Blue Nile production of the River was 4,426 kilograms ( 9,758 lb ) W. M. &! Highlight the area separating Lake No and Khartoum G. Zawdie, 2001 Osse, 1998 al Lago Tana ( Amharic. Region, their importance and current threats recording more positive signatures main source of river tana to main Tana River. [ ]... Carlson & J the Afro-Asian genus, Talling, J. W. M. Osse & A.. Cyprinidae, Ethiopia in Bahir Dar, live about 2 million people from East Africa the! Fishes from Beles and Gilgel Beles rivers, which source their waters the! Water level of the Lake is dominated by cyprinid fishes, 20 of the complex.!

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