Denis Tweddle

Honorary Research Associate
Denis Tweddle
Tel : +27 46 603 5800
Fax : +27 86 554 9365
Cell : out of signal in Namibia

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Research Interests

African freshwater fishes

African freshwater fishes - Zambezi, Malawi & East Africa.

Taxonomy - mainly Cyprinidae, especially small Barbus species, but also small catfishes & Taxonomy of marine fishes.

Other - Zoogeography; Conservation; Fisheries stock assessment (Lake Malawi); Fisheries management; Environmental impact assessment. 


Recent Peer-Reviewed Publications


Russell, B.C. & Tweddle, D. 2013. A new species of nemipterus (Pisces: Nemipteridae) from the Western Indian Ocean. Zootaxa, vol. 3630, no. 1, pp. 191-197.Conradie, W., Tweddle, D., Mákinen, T. & Bills, R. 2012. Description of the tadpole of hylarana darlingi boulenger 1902 (Anura: Ranidae) from the Mulanje Area, Malawi. Zootaxa, , no. 3441, pp. 56-58.


Marr, S.M., Impson, N.D. & Tweddle, D. 2012. An assessment of a proposal to eradicate non-native fish from priority rivers in the Cape Floristic Region, South Africa. African Journal of Aquatic Science, vol. 37, no. 2, pp. 131-142.