Amisa River
| Amisa River | |
|---|---|
 Rivers of South Ghana, showing the Amisa River | |
| Location | |
| Countries | Ghana |
| Physical characteristics | |
| Mouth | Gulf of Guinea |
• location | Atlantic Ocean |
• coordinates | 5°12′N 0°59′E / 5.200°N 0.983°E[2] |
| Basin size | 15,576 km2 (6,014 sq mi)[3] |
| Discharge | |
| • average | 12.8m³ per second.[1]: 737 |
Amisa River (also known as Ochi Amisa, Okyi-Amisa, Eminsa Ɔkye, and Eminsa Okye) rises in and runs through the Central Region of Ghana, through Mankessim, discharging into Amisa Lagoon and thereafter the Gulf of Guinea just to the south of Suprudu, near Saltpond.
Geography
The Amisa's basin is 15,576km²;[3] as of 2007, the basin had a relatively low population density compared with neighbouring river systems, at 150 inhabitants per square kilometre.[4]: 146 Its drainage area is 1368km² and in 1998 its mean annual discharge was estimated at 12.8m³ per second.[1]: 737 The river is characterised by "extensive wetlands" and a "wide inlet" from the sea.[4]: 146
Economics
The river is one of nine key sources of potable water in the Central Region, with its water supply production system located at Baifikrom Headworks.[5] It is also important to agricultural irrigation,[6] while its 2.1km² lagoon is associated with salt production and fishing.[4]: 146, 147
Culture
The river feeds one of two large ponds at the traditional sacred grove of Nananom Pow, Atsendu Pond.[7]: 6
References
- ^ a b OPOKU-ANKOMAH, Y.; FORSON, M. A. (1998-10-01). "Assessing surface water resources of the Southwestern and Coastal basin systems of Ghana". Hydrological Sciences Journal. 43 (5): 733–740. doi:10.1080/02626669809492169. ISSN 0262-6667.
- ^ "GeoNames.org". www.geonames.org. Retrieved 2025-07-25.
- ^ a b Anthony Y. Karikari and Mark Osa Akrong, "Water Quality and Public Health" (CSIR — Water Research Institute, 2017).
- ^ a b c Nixon, Scott W.; Buckley, Betty A.; Granger, S. L.; Entsua-Mensah, M.; Ansa-Asare, O.; White, M. J.; McKinney, Richard A.; Mensah, E. (2007). "Anthropogenic Enrichment and Nutrients in Some Tropical Lagoons of Ghana, West Africa". Ecological Applications. 17 (5): S144 – S164. ISSN 1051-0761.
- ^ "Central – GWL – Welcome". Retrieved 2025-07-25.
- ^ Armah, A. K.; Darpaah, G. A.; Wiafe, G. (1999-02-01). "Water quality studies on two irrigation-associated rivers in southern Ghana". Journal of the Ghana Science Association. 1 (2). doi:10.4314/jgsa.v1i2.17810. ISSN 0855-3823.
- ^ Crayner, John Brandford (1979). Akweesi and the Fall of Nananom Pɔw. Methodist Book Depot. ISBN 9988786905.