characteristics of rivers in sierra leone

By William Whitaker Shreeve, 1817. Scanned by Google. There are several references to Sierra Leone, and three short and partially inaccurate articles on page 622. Sierra Leone River | river, Sierra Leone | Britannica medium sand. The Rokel drops 15 metres (49ft) at the Bumbuna waterfalls. By Charles Raymond Beazley, 1894. As observed on the physical map above, it has a coastline on the Atlantic Ocean. J Afr Hist XVI:239256. Omissions? The blank outline map respresents mainland Sierra Leone. Some of these like the Banana Islands, Turtle Islands, and Sherbo Islands can be observed on the map. Scanned by Google. divides into Port Loko Creek and Rokel River. Scanned by Google. PHYSICAL CHARACTERISTICS OF RIVERS - The Principles and Practice of https://doi.org/10.1007/s10641-018-0742-2, DOI: https://doi.org/10.1007/s10641-018-0742-2. FAO Fish Tech Pap 262:330, Williams MO, Chaytor DEB (1966) The freshwater fishes of the Freetown Peninsula. J Zool Lond 180:455465, Payne AI (1978) Gut pH and digestive strategies in estuarine tilapia (Cichlidae) and grey mullet (Mugilidae). mountains. high on the eastern plateau. Official name: By S. W. Koelle, Church Missionary, 1854. fish. Rev Hydrobiol Trop 23:329350, Paugy D, Leveque C, Teugels GG (2003) The fresh and brackish water fishes of West Africa. An Interesting Narrative of a Mission Sent to Sierra Leone in Africa by the Methodists in 1811; to which is prefixed an account of the rise, progress, disasters and present state of that colony, the whole interspersed with a variety of remarkable particulars. J Zool Lond 176:247269, Payne AI (1976) The determination of age and growth in Barbus liberiensis from the scales. It is indented with many estuaries and creeks. Temperature affects the distribution and abundance of fish and other organisms. Report by Her Majesty's Commissioner and Correspondence on the Subject of the Insurrection in the Sierra Leone Protectorate 1898. border with Liberia. Scarcies Rivers: Great Scarcies (Kobuter River) is relatively narrow and its banks Characterization of the mangrove swamp rice soils along the Great Checklist of freshwater fishes of Africa Vol 4, MRAC, Tervuren ORSTOM, Paris: pp 740, Dorward DC, Payne AI (1975) Deforestation, the decline of the horse and the spread of tsetse fly and trypanosomiasis (ngaana) in nineteenth century Sierra Leone. (African Issues Series). Bull. Longhurst (1983) gives values of solar radiation at Freetown as The narrowing of the estuary near Freetown has created a particularly strong tidal scour (up to six knots), which keeps the deepwater channel free from any large buildup of silt. Within and between river differences were analysed and a high degree of statistical similarity was found between the species composition of . Marine Fishery Resources of Sierra Leone: a Review of Exploited Fish Stocks Scanned by Google. The southern African region can be split into the well-watered tropical North, drained by major rivers such as the Zambezi and Okavango, and the water-limited South, of which the western side is truly arid, and the eastern and southern regions are more adequately provided for. Formed by Port Loko Creek and the Rokel River, it is from 4 to 10 miles (6 to 16 km) wide and 25 miles (40 km) long and contains Sierra Leone's two major portsFreetown harbour and the port at Pepel. Tucker (1973) and Strasser-King (1979) recognize the following features: Sand bars, parallel to the current direction and occurring mainly in lower PubMedGoogle Scholar. 69. Then, the accumulated plant material gives House of Commons, from page 316, 1791. Landbuch-Verlag, Hannover, McCarton B (1987) The population dynamics of some species of fish in the river Taia. ; By Kenneth Macaulay, 1826. points and reaches elevations between 152 and 304 meters (500 and 1,000 The coastal plain has numerous Rokel River, also called Seli River, river rising in the Guinea Highlands in north central Sierra Leone, West Africa. conditions and the fisheries of Sierra Leone. The plateau region, which encompasses roughly the eastern half of the The hydropower potential of Sierra Leone is estimated at 1513MW, scattered in 27 sites . The high temperatures, high humidity and heavy rainfall affect the oceanographic Zool., IXL, Trewavas E (1983) Tilapiine fishes of the genera Sarotherodon, Oreochromis and Danakilia. entrance south-southeastward of Kortimaw Island. The West African country of Sierra Leone occupies an area of 71,740 sq. S. Gregory, M.a., Ph.d. - Jstor Scanned by Google. Scanned by Google. Additionally, there are effects of the equatorial undercurrent (Lomonosov Current) which https://doi.org/10.1016/j.ympev.2013.03.015, Article Provided by the Springer Nature SharedIt content-sharing initiative, Over 10 million scientific documents at your fingertips, Not logged in The continental shelf Most of the small lakes in Sierra Leone are located in the south. The West African country of Sierra Leone occupies an area of 71,740 sq. absence of reef-building corals in many tropical waters and explains the predominance of Scanned by Google. clays in quiet waters outside the estuary, and this is then overlain by silty sand and The water agreement provides exclusive and preferential rights to the use of the Rokel waters by special agreement for a period of 89 years from 1 January 1938. The project, implemented in 1980, is located at Magbass on the banks of the river and has an irrigation command of 880 square kilometres (340sqmi). Differences in diet are discussed in terms of the probable future of each species in the new Volta Lake in Ghana as it matures. Scanned by Google. The formation is broadly categorized as folded sedimentary rocks. by H. Caswall, Volume 4. By Robert Thorpe, 1815. is the most productive part of the equatorial area (Herbland and Le Bouteiller, 1982). A Voyage to the River Sierra-Leone. The surface area of Sierra Leone is 71 620 km 2. The Critical Review, Or, Annals of Literature, Volume 65. of several tributaries: Kumrabe Creek (7.2 km north-eastward of Tagrin Point), and Bunce This process is experimental and the keywords may be updated as the learning algorithm improves. Nature (London) 192:7880. Sierra Leone. Scanned by Google. Bishop of Sierra Leone, 1894. Tutorial Press, Harare, p 388, Thys van den Audenaerd DFE (1967) Op expeditie doorheen West African voor studie van de tilapia-vissen. the capital city of Freetown. Scanned by Google. A series of collections and surveys provided the basis for a detailed account of the distribution and ecological characteristics of the fish species assemblages in the rivers of Sierra Leone which comprises a central part of the Upper Guinean eco-region. Of the numerous rivers, the most Sierra Leone's varied terrain includes the striking, mountainous pp 51, Payne AI, Wakeford RC, Ndomahina TE (2010) Fish distribution and zonation along a tropical African river basin, the Rokel/Seli river, Sierra Leone, West Africa. 958 kilometers (595 miles) total boundary length; Guinea 652 kilometers The Rokel River (also Seli River; previously Pamoronkoh River) is the largest river in the Republic of Sierra Leone in West Africa. span the northeastern part of the country. temperature is about 27C (81F) on the coast and almost as Sierra Leone: A Description of the Manners and Customs of the Liberated Africans; with observations upon the natural history of the colony and a cotice of thecNative tribes, &c. &c. By Robert Clarke, M.R.C.S., 1843. sector between Senegal and Liberia and this has biological consequences on fisheries of During the rainy season it is risky for the canoe fishermen There are many projects developed in the river basin which derive their water supply requirements from this river. however, terminate at inland lakes. Friends' Intelligencer and Journal (Vol. [8], John MacCormac, an Irish businessman, settled on Timbo Island in 1816 and started exporting African Oak from the Rokel River. around the Rokel/Sierra Leone estuary - based on Strasser-King (1979). Gland, IUCN; Nairobi, UNEP; Cambridge, WCMC. PDF copy of the book printed for Sierra Leone's Golden Jubilee, 27 April 2011. Anyone you share the following link with will be able to read this content: Sorry, a shareable link is not currently available for this article. Sierra Leone. Sea level, Hemispheres: Afr Tervuren 13:2940, Thys van den Audenaerd DFE (1969) An annotated bibliography of Tilapia (Pisces, Cichlidae). The average annual rainfall for Freetown for the period Several islands, including Tasso Island (the largest), Tombo Island, and the historically important Bunce Island, are located in the estuary.[2]. This is a list of rivers in Sierra Leone. [3] The river basin measures 10,622 square kilometres (4,101sqmi) in size, with the drainage divided by the Gbengbe and Kabala hills and the Sula Mountains. Within and between river differences were analysed and a high degree of statistical . RSPB, Sandy, UK, p 45, Philippart J-C, Ruwet J-C (1982) Ecology and distribution of tilapias. The cyclothem (series of beds deposited) in Sierra Leone Mangrove swamps and the mud flats are the dominant ecosystem (accounting for 19% of the mangrove forest in the country)[1] noted around the river's ria. United Nations. The most significant dam in Sierra Leone is the Guma Valley Dam, which By Lady Judith Cohen Montefiore, 1794. The fuma1 lists are based on the literature dafa and on the collections of. Starting on page 367 a critical review of John Matthews' book "A Voyage to the River Sierra-Leone." A coastal swamp region that runs parallel to the Atlantic coast for around 320 km and comprises of a flat . [13], The Bumbuna Dam has been developed on the river by building a 93 metres (305ft) high dam in the narrow reach of the river, which has created a lake that stretches 30 kilometres (19mi) upstream. season, A History of the Colonization of Africa by Alien Races. Environ Biol Fish 39:365380, Lelek A (1973) Sequence of changes in fish populations of the new tropical man-made lake, Kainji, Nigeria. In Sierra Leone, mangrove swamp areas are inundated by saline tidal water twice daily from the ocean through the Great and Little Scarcies rivers up to 32 miles inland. Sierra Leone: The Principal British Colony on the Western Coast of Africa. The highest point in Sierra Leone, Mount Loma Mansa (Bintimani), rises By Sir Harry H. Johnston, K.C.B., 1899. The main daily maximum and minimum of Seasonal changes are due to the following effects of the monsoonal wet season Scanned by Google. South of the Zambezi there are very few natural freshwater lakes. It is formed by the Bankasoka River and Rokel River and is between 4 and 10 miles wide (616km) and 25 miles (40km) long. The lake and fish: feeding habits. One of the important factors influencing the productivity of Sierra Leone waters and By James Stephen Esq. Articles by various contributors, including information on Sierra Leone, from page 481, 1795. Scanned by Google. Journal of the House of Comments, Vol. The Gallinas and Sulima Rivers: The strong surf around the estuaries of the There are no well-known named caves or canyons in Sierra Leone. . Leone Archiv Fur Hydrobiologie 71:381420, Leveque C (1997) Biodiversity dynamics and conservation: the freshwater fish of tropical Africa. The southern shore is the deepest and forms a natural harbour, which is reported to be the third largest in the world.[1]. intertidal flats. Recounts the story of Bai Bureh on p. 15-16 and mentions Sierra Leone on p. 260. The highest point in the country, the 1,948 m tall Mount Bintumani of the Loma Mountains, is located here. Scanned by Google. estuaries whose river channels, like that of the Sierra Leone River, Iron ore and alluvial gold mining began in the late 1920s and early 1930s, while the Bumbuna Falls hydroelectric project is underway. Google Scholar, Bernacsek GM, Hughes RH, Hughes JS (1992) A directory of African wetlands. Sierra Leone: Diamonds and the Struggle for Democracy. The river separates Freetown, Sierra Leone's capital city, which is on the south side of the harbor, from the country's principal airport, Lungi International Airport, which is on the north side of the harbor in an area called the "Bullom Shore." range 2627C and 2829C for the wet and dry season, respectively (Williams, 1968). Published in 1788. A. Ian Payne. Written by British Lieutenant John Matthews about his experiences in Sierra Leone in 1785, 1786 and 1787. Correspondence With the British Commissioners at Sierra Leone, Havana, the Cape of Good Hope, and Loanda; and reports from British Vice-Admiralty Courts, and from officers relative to the slave trade, from April 1, 1859 to March 31, 1860. Journal of a Voyage from Plymouth to Sierra Leone, ed. The New Annual Register, or General Repository of History, Politics and Literature for the Year 1794. Characteristics, structure and resources of the sector Travels in the Timannee, Kooranko, and Soolima Countries, in Western Africa. By James Holman, R.N., F.R.S., 1840. a depth of 200 m is about 27 500 km2. the distribution and constituents of benthic fauna. FAO Rome, Cifa Occas. According to Western Agricultural Economics Association, (WAEA), (2008), Sierra Leone's groundwater resources have not been extensively studied. Fig. - 54.36.126.202. List of rivers of Sierra Leone - Simple English Wikipedia, the free Centr. 1983). https://doi.org/10.1007/s10641-018-0742-2, https://doi.org/10.1017/S0021853700001146, https://doi.org/10.1016/j.ympev.2013.03.015, https://doi.org/10.1007/978-1-349-12961-4. Includes discussions of commerce and conflict in Sierra Leone and the origin and history of the Fulani people. kilometers (5 to 25 miles). middle of the country. By his granddaughter, Viscountess Knutsford, 1900. Go to top. etc. Appendix 1. The area is calledWestern AreaorFreetown Peninsula. The project implementation was assisted by China for sugarcane cultivation. Scanned by Google. Updates? for estuarine waters are 27.0C and 28.6C for the wet and dry season, respectively beaches, and spits, cliffs, lagoons, estuaries, mangrove swamps, etc.). Rokel River and its tributaries are defined as the "Rokel River Group" for geological study. The estuary is also important for shipping. important ones are the Great and Little Scarcies in the north and the Written by Sen Farren, and published in 2011 by the Sierra Leone Irish Partnership. Scanned by Google. contour (isobath), respectively. Scanned by Google. Characteristics, structure and resources of the sector Summary The shoreline of Sierra Leone is approximately 560 km long and includes the estuaries of three large rivernetworks (Scarcies, Sierra Leone and Sherbro) and four coastal islands. Sierra Leone Web - Sierra Leone Books They correspond almost totally to the baseflow of the rivers, and the permeability of the substratum is high. The Rokel River originates in the Loma Excerpt: The Sierra Leone River is a river estuary on the Atlantic Ocean in Western Sierra Leone. continue to flow under the sea. From the time of their arrival on the shores of Sierra Leone in 1460, and until their gradual decline as leaders in world exploration in the sixteenth century, the Portuguese had an ambiguous relationship with their African trading partners. Njala University College Press, Njala, p 198, Daget J (1950) Poissons deau douce du Sierra Leone. Scanned by Google. Oliver and Boyd, Edinburgh, Ganda GP (1987) The relationship of the reproductive cycle of selected fish species to the hydrological changes of the river Taia in Sierra Leone. Includes several references to Sierra Leone, including the death of Prince Naimbonna (sic. The coastal plain covers a zone varying in width from about 8 to 40 Sierra Leone River, river, an estuary on the Atlantic, in western Sierra Leone. 2 TERRITORIES AND DEPENDENCIES Sierra Leone has no territories or dependencies. C.F. I, North Africa. region, erosion has formed a large area to cross the channel. The oceanographic factors affecting the hydrographic regime, the estuaries and Shenge Point (in the North) and Cape Saint Ann (in the South). Freetown and Pepel are the two ports located on the shores of the estuary. country, has elevations ranging from roughly 304 meters (1,000 feet) to Atlantic Ocean; and a wide plains area extending inland to about the

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