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Jones, Roy W, Weyl, Olaf L F, Hill, Martin P, Swartz, Ernst R. SpringerLink; 2013. Using a unified invasion framework to characterize Africa’s first loricariid catfish invasion.
Ellender, Bruce R, Weyl, Olaf L F, Swartz, Ernst R. Invasion of a headwater stream by non-native fishes in the Swartkops River system, South Africa. 2011.
Chakona, Gamuchirai, Swartz, Ernst R, Chakona, Albert. Wiley; 2018. The status and distribution of a newly identified endemic galaxiid in the eastern Cape Fold Ecoregion, of South Africa.
Chakona, Gamuchirai, Swartz, Ernst R, Chakona, Albert. Wiley; 2018. The status and distribution of a newly identified endemic galaxiid in the eastern Cape Fold Ecoregion, of South Africa.
Chakona, Albert, Malherbe, Willem S, Gouws, Gavin, Swartz, Ernst R. Deep genetic divergence between geographically isolated populations of the goldie barb (Barbus pallidus) in South Africa: potential taxonomic and conservation implications. 2015.
Chakona, Albert, Swartz, Ernst R. Contrasting habitat associations of imperilled endemic stream fishes from a global biodiversity hot spot. 2012.