Development initiatives and challenges for sustainable resource management and livelihood in the Lake Tana region of Northern Ethiopia. 171–214. Muluneh, A. Source of irrigation water. Late Pleistocene dessication of Lake Tana, source of the Blue Nile. (ed. No. Zooplankton of the Nile system. Fishes of Lake Roseires on the Blue Nile. Declining stocks of Lake Tana's endemic. 14–17. Immunogenetics 56: 894–908. Distribution and abundance of macro-benthic and weed-based faunas in the northern part of Lake Tana. Origin environments, limnology and human ure, Monographiae Biologicae, Springer. In B. R. Davies & K. F. Walker (eds), The Ecology of River Systems. The annual sea trout catch for that year on the river was 4,426 kilograms (9,758 lb). 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). 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. Data. Resource partitioning by Lake Tana barbs predicted from fish morphometrics and prey characteristics. Addis Ababa, Ethiopia. The capital and largest town is Hola (sometimes known as Galole). thesis, Department of Biology, Addis Ababa University. The reproductive biology of two ‘small barbs’ (. The river flows through Troms og Finnmark county, Norway and the Lapland region of Finland. Not logged in In B. R. Davies & K. F. Walker (eds), The Ecology of River Systems. SINET: Ethiopian Journal of Science 29: 107–122. Academic, New York, London, pp. Biology and management of fish stocks in Bahir Dar Gulf, Ethiopia. Growth, biomass and production of two small barbs (, Dgebuadze, Y. Y., A. S. Golubtsov, V. N. Mikheev & M. V. Mina, 1994. Fishes of the Blue Nile between Khartoum and Roseires. In J. Rzóska (ed. Over 10 million scientific documents at your fingertips. Ph. B. Dixon, A. Hailu & A. P. Wood (eds), Proceedings of the Wetland Awareness Creation and Activity Identification Workshop in Amhara National Regional State. The Geographical Journal 166: 49–62. 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. Ecological importance of aquatic macrophytes in the Southern part of Lake Tana. Kenya National Bureau of Statistics. In R. T. Oglesby, C. A. Carlson & J. Nile Basin asymmetries: a closed freshwater resource, soil water potential, the political economy and Nile transboundary hydropolitics. 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. Tana River, river, Kenya, flowing 440 miles (708 km) from its headwaters in the Aberdare Range and Mount Kenya to the Indian Ocean. In J. Rzóska (ed. 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". This lake and adjacent wetlands provide directly and indirectly a livelihood for more than 500,000 people. 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. 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 drains the NE Ethiopian Plateau (total catchment: 324,000 km2). Lake Tana has a number of islands, whose number varies depending on the level of the lake. 223–232. Sibbing, 2009. ), The Nile, Biology of an Ancient River. It has an area of 38,437 square kilometres (14,841 sq mi) and a population of 315,943. The Athi-Galana-Sabaki River is the second longest river in Kenya (after the Tana River). Conway, D., 2000. January 23rd 2001, Bahar Dar, Ethiopia, 33–43. Collins' Illustrated Checklist. Lake Tana large barbs: phenetics, growth and diversification. In M. de Graaf, Lake Tana's piscivorous Barbus (Cyprinidae, Ethiopia); ecology — evolution — exploitation. Dumont, H. J., 2009. Wondie, A., S. Mengistu, J. Vijverberg & E. Dejen, 2007. Dejen, E., J. Vijverberg, L. A. J. Nagelkerke & F. A. Sibbing, submitted. Internal Report ARARI, Bahir Dar, Ethiopia, 14 pp. 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. Junk, The Hague, pp. Population and housing census of Kenya, 2009. Thirty-eight households and 21 irrigation fields were selected for the study. Lake Tana fishery and its sustainable development (in Amharic). Frances, I. Ph. Heidelberg, Germany. Lacustrine spawning: is this a new reproductive strategy among ‘large’ African cyprinid fishes? Vol. They consist of permanent swamps, seasonal swamps, and areas subjected to regular inundation. Ecological differentiation among the eight piscivores within the, de Graaf, M., G. H. van de Weerd, J. W. M. Osse & F. A. Sibbing, 2003b. A revision of the large. Wetlandss distribution in Amhara region, their importance and current threats. Speciation of endemic Lake Tana barbs (, Stiassny, M. L. J. In H. J. Dumont (ed. In H. J. Dumont (ed. 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. Junk, The Hague, pp. Birds of Eastern Africa. Cambridge University Press, Cambridge, UK. The development of plankton in relation to the hydrological regime in the Blue Nile. Junk, The Hague, pp. Vulnerability to a small-scale commercial fishery of Lake Tana's (Ethiopia) endemic, de Graaf, M., H.-J. Describing a wide arc, the Tana then veers south and opens into a wide valley, where it meanders … Lake Tana, headwaters of the Blue Nile. The River Nile, a case history. 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. Hammerton, D., 1972. Tano River, river, western Ghana, West Africa. Johnson, T. C., C. A. Scholz, M. R. Talbot, K. Kelts, R. D. Ricketts, G. Ngobi, K. Beuning, I. Semmanda & J. W. McGill, 1996. Dejen, E., J. Vijverberg, L. A. J. Nagelkerke & F. A. Sibbing, 2004. Rzóska, J., 1976c. The northern section of the Nile passes through Sudan to Egypt and results in a large de… Type of irrigation. 385–402. Witte, F., M. de Graaf, O. Mkumbo, A.I. Evolutionary origin of Lake Tana's (Ethiopia) small, de Graaf, M., E. Dejen, J. W. M. Osse & F. A. Sibbing, 2008. Ricerche limnologiche B. Chimica e Biologia. D. thesis, Wageningen Institute of Animal Sciences, Wageningen University, The Netherlands, pp. Science 273: 1091–1093. The Blue Nile in the plains. Ethiopie and Djibouti (in French). Temporal and spatial distribution of microcrustacean zooplankton in relation to turbidity and other environmental factors in a large tropical lake (L. Tana, Ethiopia). In H. J. Dumont (ed. Monographiae Biologicae, Springer. The Tana is well known for its excellent salmon fishery and is the most productive salmon river in Finland and Norway. 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. The county lies between latitudes 000’53” and 200’41’’ South and longitudes 38025’43” and 40015’ East. of household farmers. Not affiliated The major ethnic groups are the Dagodie, Ogaden Pokomo, many of whom are farmers, and the Orma, Wardey and Gadsan who are peaceful people . Proceedings of the Royal Society of London B 267: 1833–1842. Molla, M. & T. Menelik, 2004. Agriculture and livestock production are the main sources of livelihood in Tana River. Seven large permanent rivers feed the lake as well as ca 40 small seasonal rivers. This process is experimental and the keywords may be updated as the learning algorithm improves. Animal Biology 54: 393–415. 495–525. Fisheries in the Nile system. The expansive delta created by the river is characterized by wetlands, presenting great potential for agriculture. Dejen, E., J. Vijverberg, M. de Graaf & F. A. Sibbing. Reconnaissance survey on the river fisheries of Benishangul—Gumuz regional state. 216.70.68.19. El-Moghraby & F.A. Harper & Collins, London, 301 pp. 211 Paris, ORSTOM, 300–311. The shallow lake (average depth 8 m, max. 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. River Tana. The Lake has been formed by volcanic activity, blocking the course of inflowing rivers in the early Pleistocene times ca 5 million years ago. The Tana River is a major water resource in the area. Phytoplankton: composition, development and productivity. Vol. This is a preview of subscription content. 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., 1986b. Report National Fisheries and Other Living Aquatic Resources Research Center (NFLARR/EARO), Addis Ababa, Ethiopia. It also provides 70 per cent of the country’s hydropower. ), The Nile: Monographiae Biological Springer, Dordrecht. based, conflicts, Tana River County, Kenya INTRODUCTION Natural resources are an integral part of society, as a source of income, industry, and identity. Riverine spawning and reproductive segregation in a lacustrine cyprinid species flock, facilitated by homing? Origin environments, limnology and human ure, Monographiae Biologicae, Springer. This file is licensed under the Creative Commons Attribution-Share Alike 4.0 International license. are endemics to the Lake catchment. The river is the fifth longest in Norway. Around the lake and its catchment, including the town of Bahir Dar, live about 2 million people. Dordrecht. ), The Nile, Biology of an Ancient River. Demographics. The climate and hydrology of the upper Blue Nile River. Tewabe, D., S. Muhammed & B. Abdissa, 2005. Late Pleistocene desiccation of Lake Victoria and rapid evolution of cichlid fishes. Notes on the benthos of the Nile system. 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. 2006a. In winter, there are usually two ice roads that are in use from December to April. Origin environments, limnology and human use. In Khartoum, the capital of Sudan, the section of the Nile is called White Nile. In J. Rzóska (ed. 1050 Households. Duration of development, biomass and rate of production of the dominant copepods (Calanoid and cyclopoida) in Lake Tana, Ethiopia. pCO 2 values were generally higher in the lower main Tana River compared to headwater tributaries, opposite to the pat- Journal of Fish Biology 48: 383–404. Other Crops. D. thesis, Wageningen University, The Netherlands, 143 pp. The Lake has been formed by volcanic activity, blocking the course of inflowing rivers in the early Pleistocene times ca 5 million years ago. 2006b. Kluwer, Dordrecht, pp. Part of Springer Nature. Location of Tana River, county of Kenya, . In African wetlands and shallow water bodies. Generally, the county experiences bimodal rainfall pattern which is mostly erratic with long rains falling between April … Efficient monitoring programs based on a practical selection of robust water quality indicators are … They act as nurseries for most of the fish populations in the lake, and serve as breeding ground for water fowl and mammals. pp 163-192 | It is named after the Tana River. Palstra, A. P., M. de Graaf & F. A. Sibbing, 2004. The Tana Bridge was constructed in 1948; its main span is 195 metres (640 ft). & S. Mengistu, 2006. 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