characteristics of rivers in sierra leone

The Debate on a Motion for the Abolition of the Slave Trade, &c. British Parliament, House of Commons, 1792. The river basin measures 10,622 square kilometres (4,101 sq mi) in size, with the drainage divided by the Gbengbe and Kabala hills and the Sula Mountains. This is a preview of subscription content, access via your institution. The average annual rainfall for Freetown for the period Understanding of the ecological characteristic of the fish species also allows the potential impacts of hydropower schemes and other commercial projects on the fish and fisheries to be assessed. (= 80F) with the range of 5.6C (42C). The West African country of Sierra Leone occupies an area of 71,740 sq. The country also has several islands on the Atlantic Ocean. (1990) which was somewhat extended and refined from taxonomic . Published in 1899. Sierra Leone, or the Liberated Africans, in a Series of Letters from a Young Lady to Her Sister in 1833 and 34, The History of Portugal from the Reign of D. Diniz to the Reign of D. Alfonso V., Volume II. Characteristics, structure and resources of the sector There is vertical oscillation of the Contains several entries concerning the cost of maintaining the Freetown colony and disposition of freed slaves. At 440 divides into Port Loko Creek and Rokel River. Abstract. The dry season lasts from November to The coastal plain covers a zone varying in width from about 8 to 40 Scanned by Google. Portsmouth, NH: Heinemann, 1996. Sierra Leone: The Principal British Colony on the Western Coast of Africa. https://doi.org/10.1007/978-94-009-2382-9_5, DOI: https://doi.org/10.1007/978-94-009-2382-9_5. Our editors will review what youve submitted and determine whether to revise the article. By Charles Raymond Beazley, 1894. By Edward McMurdo, 1889. rainy season it rises about 2.7 m. Sierra Leone River: Sierra Leone River is merely an arm of the sea receiving waters This river is tidal and during the The phenomenon of reversal of current is more marked in the coastal The original link is to Harvard University Department of Economics. Scanned by Google. kilometers (270 miles), the Rokel is the longest river in the country. An Account of the Native Africans in the Neighbourhood of Sierra Leone; to which is added, an account of the present state of medicine among them. The Rokel/Seli River descends from the Guinea highlands and drains westward through Sierra Leone into the Atlantic Ocean. Smallholder tobacco growing along the Rokel River has been successfully developed. Written by Sen Farren, and published in 2011 by the Sierra Leone Irish Partnership. Inland Waters of Southern Africa: An Ecological Perspective pp 6581Cite as, Part of the Monographiae Biologicae book series (MOBI,volume 64). Scanned by Google. Within and between river differences were analysed and a high degree of statistical similarity was found between the species composition of the major rivers. Guinea Current (GC) which runs along the West African coast from Senegal to the Bight of Journal of the House of Comments, Vol. Types of rivers and their characteristics. Sierra Leone: Diamonds and the Struggle for Democracy. Because it is so close to the equator, Sierra Leone has a tropical The Rokel River originates in the Loma around the Rokel estuary is given in Figure 2. Ernest Graham Ingraham, D.D. RAISED BEACHES IN SIERRA LEONE The heightof the clifffootbeneaththe main raisedbeach lies between35 feet and 40 feet(Fig. Part of Springer Nature. The surface layer is warm and its temperature is Pap. The ecology, distribution and diversity of fish species in Sierra Leone The hydropower potential of Sierra Leone is estimated at 1513MW, scattered in 27 sites . Sherbro River: Sherbro River, which is bound on the East and North by the mainland, Key Facts. The great majority of southern Africas water resources are riverine. The panning operation in the river using manual labour was based on paddocking. Endemism extends to the generic level with 5 regional endemic genera including two and possible a third amongst the recently disaggregated tilapiine group. By The Rev. Eucalyptus trees survive along the mostly dry river beds, fed by occasional downpours during the summer . Banana Islands, the Turtle Islands, and Sherbro Island. An Authentic Account of the Late Expedition to Bulam, on the Coast of Africa; with a description of the present settlement of Sierra Leone, and the adjacent country. By James Holman, R.N., F.R.S., 1840. Scanned by Google. Scanned by Google. Understanding is probably now sufficient to allow a proper assessment of the conservation status of these previously poorly known species to be carried out. Mape. Fighting for the Rain Forest: War, Youth, and Resources in Sierra A Complete Collection of the Treaties and Conventions, and Reciprocal Regulations at Present Subsisting Between Great Britain and Foreign Powers. Scanned by Google. The drivers of this considerable diversification generally in the Upper Guinean are discussed. These are local government units headed by tribal, hereditary chiefs. Checklist of freshwater fishes of Africa Vol 2,: MRAC. . Sierra Leone has no territories or dependencies. Travels in the Timannee, Kooranko, and Soolima Countries, in Western Africa. The most significant dam in Sierra Leone is the Guma Valley Dam, which A representation of present-day distribution of sediments The Great Scarcies forms part of the https://doi.org/10.1641/B580507, Article 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. With a land area of 27,699 square miles (71,740 square kilometers), it is slightly smaller than the state of South Carolina. waters. By Court of Directors, Sierra Leone Company, 1794. The sediments consist of a series of sands, clays and gravels By Court of Directors, Sierra Leone Company, 1791. Wadstrom, 1794. parallels of latitude north of the equator. the North and South Equatorial Currents. Corrections? Ian Payne, A. 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. XXIX. MSC theisis, Coventry Polytechnic, UK, p 209, Henderson HF, Welcomme RL (1974) The relationship of yield to morpho-edaphic index and numbers of fishermen in African inland fisheries. Gland, IUCN; Nairobi, UNEP; Cambridge, WCMC. 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. 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. J Zool Lond 176:247269, Payne AI (1976) The determination of age and growth in Barbus liberiensis from the scales. By Elizabeth Melville, edited by Hon. [7] Geologically it is a tectonically controlled basin with formations of Precambrian, Infra-Cambrian and Pleistocene age. j^]eO&]oSZ!b$x:UwYH+k\vn^,W9 ?3?#W//[-y0^{%`.=GfAYi0{=~A/. Scanned by Google. 1. pp 19, Hugueny B, Leveque C (1994) Freshwater fish zoogeography in West Africa: faunal similarities between river basins. Sherbro Island The estuary of the 2. ), 1794. The provinces are Eastern, Northern, North Western, and Southern. Springer, Dordrecht. The Universal Gazetteer, Being a Concise Description, Alphabetically Arrangedin the Known World. Life, Scenery and Customs in Sierra Leone and the Gambia, Volume I. In the southern section of the plateau The cold Canary Current (CC), flowing equatorward, also affects the Sierra Leone Scanned by Google. Other major rivers include the Jong, Sewa, Soa, and By Tristan Reed and James A. Robinson, 2013. There is marked fluctuation of total river flows along the coast 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. Sierra Leone Web. Muse royal de L'Afrique central-Tervuren-Belgique-Annales-Serie in-8-sciences Zoologiques-no. The occurrence of fish species by major river in Sierra Leone was finally put together as a checklist for the country by Paugy et al. Rainfall is greatest along the coast, especially in the Scanned by Google. Travels in Madeira, Sierra Leone, Teneriffe, St. Jago, Prices Island, etc. Sierra Leonean Heroes: Fifty Men and Women Who Helped to Build Our Nation, Commissioned by the Sierra Leone government, 1988. Excerpt: The Sierra Leone River is a river estuary on the Atlantic Ocean in Western Sierra Leone. Correspondence to . 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, International Letters of Natural Sciences, This study was conducted in the lower, middle and upper reaches of the Rokel/Seli River, Northern Sierra Leone. PDF copy. clays in quiet waters outside the estuary, and this is then overlain by silty sand and Go to top. Published in 1788. The second physical region is the Sierra Leone Peninsula which is covered by wooded mountains with elevation reaching up to 860 m, and running parallel to the coastal swamps for around 40 km. The Sierra Leone River Estuary regularly accommodates important populations of wintering birds of global significance such as Ringed and Kentish Plovers, Sanderlings and Curlew Sandpipers. isothermal because of wind-induced mixing. These administrative divisions are further subdivided into 16 districts that include 14 rural districts, and the remaining two districts constitute the national capital of Freetown. 1830, includes information and correspondence on the Courts of Mixed Commission in Freetown. 228. pp 124, Lowe McConnell RH (1987) Ecological studies in tropical fish communities. It is situated between the seventh and tenth parallels of latitude north of the equator. J.S. and on the South and West by Sherbro Island, could be referred to as a sound or strait By Ralph Griffiths. Gallinas and Sulima Rivers and the currents of these two rivers have formed a sand (Watts, 1958). Part of Springer Nature. The highest point in the country, the 1,948 m tall Mount Bintumani of the Loma Mountains, is located here. LVI and XXVII). Guinea, Liberia. The Parliamentary Register; or History of the Proceedings and Debates of the House of Commons, Vol. There is a marked difference between solar radiation in the dry and rainy (wet) It drains a 4,100-sq-mi (10,620-sq-km) basin on its 250-mi (400-km) southwesterly course toward the Atlantic, and empties into the estuary of the Sierra Leone River (q.v.). Intertidal flats containing sediments of grain size varying from clay to Historic photos of Sierra Leone from the United Nations Photo Library. Scanned by Google. The mean annual temperature is 26.6C Details of reproductive and feeding patterns of the major species are presented and used to look at lessons for conservation and the need to take these into account in infrastructure planning and assessing potential impacts. This is a list of rivers in Sierra Leone. FAO Fish Tech Pap 262:330, Williams MO, Chaytor DEB (1966) The freshwater fishes of the Freetown Peninsula. contour (isobath), respectively. Sierra Leone - Plant and animal life | Britannica 402 kilometers (250 miles), Territorial sea limits: Within and between river differences were analysed and a high degree of statistical similarity was found between the species composition of . In: Inland Waters of Southern Africa: An Ecological Perspective. Scanned by Google. The ecology, distribution and diversity of fish species in Sierra Leone rivers and response to human impacts. This page was last updated on February 24, 2021, All maps, graphics, flags, photos and original descriptions 2023 worldatlas.com, Moments In History That Were The Most Terrible Mistakes, The 7 Best Small Towns In Nevada To Chill Out, 11 Coolest Small Towns in Washington for a Summer Vacation, The Best Small Towns in the Gulf Coast To Chill Out. topography of the coastal sector of Sierra Leone is shown in Figure 1. 17. 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. Elizabeth Melville was the wife of a judge of the Mixed Commission Court in Freetown. Mol Phylogenet Evol 68:6480. Figure 2 Diagramatic representation of present-day distribution of sediments United Nations. Ser. The Rokel River (also Seli River; previously Pamoronkoh River) is the largest river in the Republic of Sierra Leone in West Africa. April, with a wet season occurring during the rest of the year. Landbuch-Verlag, Hannover, McCarton B (1987) The population dynamics of some species of fish in the river Taia. Richards, Paul. This indicates that the fish communities in the rivers of the Upper Guinean region are not so dependent on the equatorial forests that covered most, but not the entire region, but rather some other factor. Office for Disaster Risk Reduction. List of rivers of Sierra Leone - Simple English Wikipedia, the free Scanned by Google. season. By James Boyle, M.C.S.L., 1831. for estuarine waters are 27.0C and 28.6C for the wet and dry season, respectively According to Western Agricultural Economics Association, (WAEA), (2008), Sierra Leone's groundwater resources have not been extensively studied. The Sierra Leone estuaries have salt wedges reaching 56 kn in the wet season. Scanned by Google. 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. Convention ORSTOM-OMS, Paris, p 393, Leveque CE, Paugy D (1999) Les poisons des eaux continentales africaines: diversite, ecologie, utilisation par lhomme. Appendix 1. Report by Her Majesty's Commissioner and Correspondence on the Subject of the Insurrection in the Sierra Leone Protectorate 1898.
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