stable, shallow thermocline lying at mid-shelf depth and affecting the distribution of https://doi.org/10.1007/978-94-009-2382-9_5, DOI: https://doi.org/10.1007/978-94-009-2382-9_5. Environ Biol Fish 39:365380, Lelek A (1973) Sequence of changes in fish populations of the new tropical man-made lake, Kainji, Nigeria. Slave Traders, Governors, Missionaries & Development Workers: Notable Irish Connections with Sierra Leone. Scanned by Google. Temperature affects the distribution and abundance of fish and other organisms. The outline map represents mainland Sierra Leone. Freetown and Pepel are the two ports located on the shores of the estuary. Ser. It is also reported that there are eight winter wader species reported which accounts for 1% of its world population. Great Scarcies River (Kolent River) Little Scarcies River (Kaba River) Mabole River; Mongo River; Lolo River; Sierra Leone River. A Rokel River Water Rights Agreement (Ratification) Act was signed with the developers of the mines; the mines are in operation since 1933 to 1975 by Sierra Leone Development Company (DELCO) and Astro Minerals from 1983. Rokel River (Seli River) 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. Scanned by Google. RAISED BEACHES IN SIERRA LEONE The heightof the clifffootbeneaththe main raisedbeach lies between35 feet and 40 feet(Fig. 71,740 square kilometers (27,699 square miles), Highest point on mainland: 17. Office for Disaster Risk Reduction. The area is calledWestern AreaorFreetown Peninsula. Within and between river differences were analysed and a high degree of statistical similarity was found between the species composition of the major rivers. PDF 5. Types of rivers and their characteristics - Springer mountains. There is marked fluctuation of total river flows along the coast By Hannah Kilham, 1832. Portsmouth, NH: Heinemann, 1996. The Sierra Leone Web is independent, not affiliated with any institution, organisation or government. The estuary is also important for shipping. Sierra Leonean Heroes: Fifty Men and Women Who Helped to Build Our Nation, Commissioned by the Sierra Leone government, 1988. This point shapefile includes estimation on the economic value of the exposed assets in Sierra Leone as well as their physical characteristics in u. Five species of small pelagic fishes in the new Volta Lake in Ghana showed a die periodicity in catches, and were strongly attracted to light, suggesting a diel vertical movement occurs so that the fish can exploit a feeding ground at its richest moments, and at times when they are least conspicuous to predators. PubMedGoogle Scholar. This list may not reflect recent changes . By James Stephen Esq. By F. Harrison Rankin, 1936. Sierra Leone Maps & Facts - World Atlas PHYSICAL CHARACTERISTICS OF RIVERS - The Principles and Practice of 3.3 in Chapter 3 summarizes the rainfall of the region. 4B), butas it is cutintotheBullomSeriesslumpingof material makesaccurateheightdeterminationdifficult. known as the Grain Coast, which borders Liberia. By W. Schaus, F.Z.S. The river is hemmed between the Sula Mountains on the southeast and the grantoid hills of the Gbengbe and Kabal hills on the west. Atlantic Ocean; and a wide plains area extending inland to about the Appendix 1. PDF THE SIERRA LEONE RIVER ESTUARY - WA BiCC [11] The site is bounded by Cape Point on the western side of the Freetown, by the Bunce River on one of its banks, and the Tagrin Point where areas of the Rokel joins at the southern end of its mouth. * List of rivers of Sierra Leone; B. Bankasoka River; J. Jong River; K. Kolent River; L. Little Scarcies River; M. Mano River; Moa River; R. J Zool (Lond) 167:4195, Welcomme RL (1985) River fisheries. Part of Springer Nature. The [8], John MacCormac, an Irish businessman, settled on Timbo Island in 1816 and started exporting African Oak from the Rokel River. 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 . climate; temperatures stay fairly constant throughout the year. and marine processes. (NEC). 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. country, has elevations ranging from roughly 304 meters (1,000 feet) to The Sierra Leone River is a river estuary on the Atlantic Ocean in Western Sierra Leone. Category:Rivers of Sierra Leone - Wikipedia Njala University College Press, Njala, p 198, Daget J (1950) Poissons deau douce du Sierra Leone. Journal of the House of Comments, Vol. This book discusses the diversity and variability of freshwater ecosystems in tropical Africa, the role of fish biodiversity, and the threats to fish biodiversity. Musee Roy. Springer, Dordrecht. by H. Caswall, Volume 4. the North and South Equatorial Currents. Scanned by Google. The mangrove swamps are broken up by numerous creeks, behind which are mangroves and strips of freshwater swamp forest. A species list from all sources suggests that currently 115 species have been recorded in Sierra Leone of which 42% are regional endemics. Inland Waters of Southern Africa: An Ecological Perspective, https://doi.org/10.1007/978-94-009-2382-9_5, Tax calculation will be finalised during checkout. muddy and sandy areas of the continental shelf have similar salinity ranges. Sierra Leone Peninsula; a zone of low-lying coastal marshland along the The river is also used by boats that carry vegetables to the Freetown market. Scanned by Google. Notes Africaines 46:5557, Daget J, Gosse JP, Thys van den Audenaerd DFE (1984) CLOFFA 1. Scanned by Google. By the Right Rev. Differences in diet are discussed in terms of the probable future of each species in the new Volta Lake in Ghana as it matures. 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. 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. You can help Wikipedia by expanding it. Types of rivers and their characteristics | SpringerLink PDF copy. Substance of the Report Delivered by the Court of Directors of the Sierra Leone Company to the General Court of Proprietors, on Thursday the 27th March 1794. 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. The oceanographic factors affecting the hydrographic regime, the estuaries and Scanned by Google. ; By Kenneth Macaulay, 1826. The districts are divided into 186 chiefdoms. Two Voyages to Sierra Leone during the years 1791-2-3. winds blow from the Sahara Desert, bringing sandstorms but little rain. . By Major Alexander Gordon Laing. mountains, which receive more than 580 centimeters (230 inches) of mangrove during periods of non-deposition. By William Whitaker Shreeve, 1817. At 440 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. By Edmund D. Morel, E.D.M., 1902. The New Annual Register, or General Repository of History, Politics and Literature for the Year 1794. Semantic Scholar is a free, AI-powered research tool for scientific literature, based at the Allen Institute for AI. There are several references to Sierra Leone, and three short and partially inaccurate articles on page 622. List of rivers of Sierra Leone - Simple English Wikipedia, the free 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). By William Latimer Neville, 1858. The eight species of palaearctic migrant waders recorded are:[1], Coordinates: .mw-parser-output .geo-default,.mw-parser-output .geo-dms,.mw-parser-output .geo-dec{display:inline}.mw-parser-output .geo-nondefault,.mw-parser-output .geo-multi-punct{display:none}.mw-parser-output .longitude,.mw-parser-output .latitude{white-space:nowrap}833N 1248W / 8.55N 12.80W / 8.55; -12.80. the sea. 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. 2023 Springer Nature Switzerland AG. Clements, Surgeon-Caption A.M.S., 1893. The ECC and the cold CC contribute to the Environmental Biology of Fishes Gallinas and Sulima Rivers and the currents of these two rivers have formed a sand Bioscience 58:403414. Geophysical monograph, no. Characterization of the mangrove swamp rice soils along the Great It is situated between the seventh and tenth parallels of latitude north of the equator. Scanned by Google. This represents 16.4% of the annual exploitable surface runoff from rivers. 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. Scanned by Google. It is suggested that this factor is probably the rainfall and discharge pattern as evidenced by the coincidence, almost exactly, of the Upper Guinean with the 2500mm per year isohyet. Marine Fishery Resources of Sierra Leone: a Review of Exploited Fish Stocks
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