The Quko Estuary is referred to locally as Double Mouth, after the confluence of the two rivers which takes place to the mouth. The name is somewhat misleading, as it could imply that the Quko River enters the sea at two places which is not the case. According to Bulpin (1980), Quko or Khukho means "something which is spread out" in Xhosa. Majority of the ecological formations encountered within the catchment area of the Quko River belong to the Karoo system. The estuary lies between relatively steep convex interfluves foreland spurs, which rise to a little over 70 m in altitude to the remnants former coastal plain.
Reference:
Burns, MER, Du Plessis, MA and Verwoerd, DJ. 1988. Quko (CSE56). Report 39 of the Estuaries of the Cape, Part 2: Synopses of available information on individual systems series, edited by Heydorn, AEF and Morant, PD. Stellenbosch: CSIR. (CSIR research report 438)
Burns, M., Du Plessis, M., & Verwoerd, D. (1988). Quko (CSE56) (CSIR Research Report number). CSIR, National Research Institute for Oceanology. Retrieved from http://hdl.handle.net/10204/3473
Burns, MER, MA Du Plessis, and DJ Verwoerd Quko (CSE56). CSIR Research Report number. CSIR, National Research Institute for Oceanology, 1988. http://hdl.handle.net/10204/3473
Burns M, Du Plessis M, Verwoerd D. Quko (CSE56). 1988 [cited yyyy month dd]. Available from: http://hdl.handle.net/10204/3473
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