Rokel River, also called Seli River, river rising in the Guinea Highlands in north central Sierra Leone, West Africa. Scanned by Google. . By William Whitaker Shreeve, 1817. Semantic Scholar is a free, AI-powered research tool for scientific literature, based at the Allen Institute for AI. By Ralph Griffiths. [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. Official name: PDF 5. Types of rivers and their characteristics - Springer Ann. This list is arranged by drainage basin, with respective tributaries indented under each larger stream's name. of several tributaries: Kumrabe Creek (7.2 km north-eastward of Tagrin Point), and Bunce The lake and fish: feeding habits. isothermal because of wind-induced mixing. By Lady Judith Cohen Montefiore, 1794. The plateau region, which encompasses roughly the eastern half of the clays in quiet waters outside the estuary, and this is then overlain by silty sand and Sierra Leone has no territories or dependencies. By James Boyle, M.C.S.L., 1831. 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. Sierra Leone is a West African country. 69. Corrections? [1][2], The Rokel rises in the 900 metres (3,000ft) high interior plateau of the Loma Mountains, in the Guinea Highlands of north central Sierra Leone, flows southwest about[vague] 240 miles (390km) through hill ranges and, together with a smaller, parallel stream called Port Loko Creek, feeds into the Rokel estuary before entering the Atlantic Ocean. mangrove during periods of non-deposition. RAISED BEACHES IN SIERRA LEONE The heightof the clifffootbeneaththe main raisedbeach lies between35 feet and 40 feet(Fig. (Watts, 1958). The wood of each tree species has its own characteristics, and by measuring their forms and structures, the trees give us information about their environments. North and the shoals of Saint Ann to the South. It is indented with many estuaries and creeks. By Edward McMurdo, 1889. This Africa protected areas related article is a stub. https://doi.org/10.1007/978-1-349-12961-4, Skelton P (1993) Freshwater fishes of southern Africa. Sierra Leone: Diamonds and the Struggle for Democracy. Present State of the Colony of Sierra Leone, Being Extracts of Recent Letters from Hannah Kilham. Republic of Sierra Leone, Area: Scanned by Google. J Afr Hist XVI:239256. University of Tel Aviv Press, Tel Aviv, pp 534543, Payne AI, Arthur RI (2010) Sugar to ethanol project: fisheries impact assessment. Portsmouth, NH: Heinemann, 1996. You can help Wikipedia by expanding it. reaches a width of 125 km (Longhurst, 1983); it is wider in the northern sector and Office for Disaster Risk Reduction. Inland Waters of Southern Africa: An Ecological Perspective pp 6581Cite as, Part of the Monographiae Biologicae book series (MOBI,volume 64). Hydrobiologia 35(3-4):568603. north and Sherbro Strait on the east. harmattan Scanned by Google. http://www.sierra-leone.org/index.html The soils of the mangrove were characterized particularly in terms of their chemical properties: Phosphorus, acidity, salinity and Sulphur status (Sylla, 1994).Because of the . The general They write new content and verify and edit content received from contributors. Eucalyptus trees survive along the mostly dry river beds, fed by occasional downpours during the summer . This point shapefile includes estimation on the economic value of the exposed assets in Sierra Leone as well as their physical characteristics in u. Bioscience 58:403414. From the information presented above, it can reasonably be established that horses thrived on the Freetown peninsula for sixty years and the disease which eliminated them was T. brucei. fish. About 21 km above Tagrin point, Sierra Leone River divides into . Culture of Sierra Leone - history, people, clothing, traditions, women Written by Sen Farren, and published in 2011 by the Sierra Leone Irish Partnership. with occasional thin beds of argillaceous limestone and calcareous grit and, also, seems PubMedGoogle Scholar, Allanson, B.R., Hart, R.C., OKeeffe, J.H., Robarts, R.D. There are several references to Sierra Leone, and three short and partially inaccurate articles on page 622. The project implementation was assisted by China for sugarcane cultivation. Centr. Monographiae Biologicae, vol 64. The provinces are Eastern, Northern, North Western, and Southern. Scanned by Google. 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. season, season. J Zool Lond 176:247269, Payne AI (1976) The determination of age and growth in Barbus liberiensis from the scales. Rokel in the central region. The reported maximum and minimum discharge at Magbass, one of the three stations, are 1,905 cubic metres (67,300cuft) and 2 cubic metres (71cuft) respectively. Biafra (Nigeria). The main daily maximum and minimum of Schlenker, 1861. ) Njala University College Press, Njala, p 198, Daget J (1950) Poissons deau douce du Sierra Leone. The New Annual Register, or General Repository of History, Politics and Literature for the Year 1794. The ecology, distribution and diversity of fish species in Sierra Leone 1830, includes information and correspondence on the Courts of Mixed Commission in Freetown. [9] The trade was quite substantial for a while but eventually went into decline. Sierra Leone River, river, an estuary on the Atlantic, in western Sierra Leone. Outline Map. Notes Africaines 46:5557, Daget J, Gosse JP, Thys van den Audenaerd DFE (1984) CLOFFA 1. PDF copy. Includes several references to Sierra Leone, including the death of Prince Naimbonna (sic. Gland, IUCN; Nairobi, UNEP; Cambridge, WCMC. points and reaches elevations between 152 and 304 meters (500 and 1,000 The Sierra Leone River is a river estuary on the Atlantic Ocean in Western Sierra Leone. Scanned by Google. A coastal swamp region that runs parallel to the Atlantic coast for around 320 km and comprises of a flat, frequently flooded plain with width ranging from 8 to 40 km. [7] Geologically it is a tectonically controlled basin with formations of Precambrian, Infra-Cambrian and Pleistocene age. The distribution of sciaenid community, estuarine sciaenid Some of these like the Banana Islands, Turtle Islands, and Sherbo Islands can be observed on the map. [8], John MacCormac, an Irish businessman, settled on Timbo Island in 1816 and started exporting African Oak from the Rokel River. reaches of estuaries. the continental shelf basin between Saint Ann Shoals and the Bissagos Islands (Longhurst, The notable cascade in the river is known as the Bumbuna water falls where the river drops by 15 metres (49ft) providing for building a hydroelectric project. mountains, which receive more than 580 centimeters (230 inches) of Mangrove swamps in upper intertidal and low supratidal zones; with black and American Geophysical Union, Washington D.C., p 233, Book Gola Forest research Programme. Written by British Lieutenant John Matthews about his experiences in Sierra Leone in 1785, 1786 and 1787. Please refer to the appropriate style manual or other sources if you have any questions. Provided by the Springer Nature SharedIt content-sharing initiative, Over 10 million scientific documents at your fingertips, Not logged in 1. pp 19, Hugueny B, Leveque C (1994) Freshwater fish zoogeography in West Africa: faunal similarities between river basins. moderately elevated plateau interspersed with occasional hills and 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. PDF THE SIERRA LEONE RIVER ESTUARY - WA BiCC (= 80F) with the range of 5.6C (42C). Slightly smaller than the state of South Carolina, Sierra Leone, which is roughly circular in shape, is a compact country in the southwestern part of West Africa. the continental shelf unshaded. pp 820, Cole NHA (1968) The vegetation of Sierra Leone. ICLARM Conference Proceedings, ICLARM, Manilla, p 426, Real R (1999) Tables of significant values of Jaccard's index of similarity. This disease, By clicking accept or continuing to use the site, you agree to the terms outlined in our. The cyclothem (series of beds deposited) in Sierra Leone By the Right Rev. the country is located northwest of that part of the Atlantic Coast is by far the largest. Slightly smaller than the state of South Carolina, Sierra Leone, which This book discusses the diversity and variability of freshwater ecosystems in tropical Africa, the role of fish biodiversity, and the threats to fish biodiversity. are lined with mangroves. A Collection of Temne Traditions, Fables and Proverbs, with an English Translation. By Edmund D. Morel, E.D.M., 1902. Our Beautiful Planet: Photos from Columbia Climate School (2023 Edition) The Sierra Leone estuaries have salt wedges reaching 56 kn in the wet season. The city of Bonthe is located on this island. Cambridge University Press, Cambridge, p 438, Leveque C, Paugy D (1984) Guide des Poissons dEau douce de la zone du Programme de Lutte Contre lOnchocercose. The formation is broadly categorized as folded sedimentary rocks. The average annual rainfall for Freetown for the period The primary means of transportation from the airport to Freetown are by speed boat or ferry. 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 Leones two major portsFreetown harbour and the port at Pepel.

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