On a record of two alien fish species (Teleostei: Osphronemidae) from the natural waters of Chennai, Tamil Nadu, India

• Main Authors: J.D. Marcus Knight, Shankar Balasubramanian
• Format: Article
• Language: English
• Published: Wildlife Information Liaison Development Society 2015-03-01
• Series: Journal of Threatened Taxa
• Subjects: Trichopsis vittata, Macropodus opercularis, Invasive species, Aquarium trade, Inter-basin water transfer, Pacu, Pethia phutunio.
• Online Access: http://threatenedtaxa.org/index.php/JoTT/article/view/1909
• ISSN: 0974-7893; 0974-7907

<p>Aquarium trade has been the source of many alien species being introduced into the natural waters of Chennai.  <em>Trichopsis vittata</em> and <em>Macropodus opercularis</em> are being reported for the first from Chennai. However,  contrary to the propagule pressure theory both these species are not common in the aquarium trade, raising speculations of inter-basin water transfer playing a role in introducing non-native species into an ecosystem. </p><div> </div>