Ichthyological Research

, Volume 60, Issue 4, pp 327–333 | Cite as

Non-indigenous armoured catfish in Vietnam: invasion and systematics

Full Paper


The occurrence of non-indigenous armoured catfish Pterygoplichthys aff. pardalis from the Dinh River basin (Khan Hoa Province, Vietnam) is reported. We provide data indicating that this may be a naturalised population and present information on the fish reproduction, which points to possible batch spawning. Potential threats posed by the armoured catfish to the native habitat are discussed. Morphometric traits do not form discrete clusters, patterns of the body colouration (the main diagnostic character of these species) are very diverse and largely embrace those of different species. We suggest that the systematics of the genus should be revised.


Pterygoplichthys Invasive species Morphometric traits Colour patterns 



We are grateful to Đinh Thị Hải Yến and Võ Thị Hà (Coastal Branch of Vietnam–Russian Tropical Centre) for their help in the collection of the materials and organisation of the fieldwork, Kirill F. Dzerzhinsky for assistance in processing of the materials, and Terry J. Donaldson for numerous valuable comments on the manuscript. This study was supported by the Research Programme Ekolan E-3.2, “Taxonomic diversity, ecology and behaviour of freshwater hydrobionts”, Tropical Research and Technology Centre.


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© The Ichthyological Society of Japan 2013

Authors and Affiliations

  1. 1.Severtsov Institute of Ecology and EvolutionRussian Academy of SciencesMoscowRussia

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