NIAS Wednesday Discussion: “Adapting to Invasion: Understanding the Impact of Non-native Fishes on the Behaviour of Indigenous Species” by V V Binoy, Lecture Hall, NIAS, 0930 hrs

NIAS Wednesday Discussion



Topic:             “Adapting to Invasion:  Understanding the Impact of

                       Non-native Fishes on the Behaviour of Indigenous Species”


Speaker:          V V Binoy

                        Assistant Professor, School of Natural and Engineering Sciences, NIAS



Chairperson:    Anindya Sinha

                        Professor, School of Natural Sciences & Engineering, NIAS



Date:               25th April 2018


Time:               9.30 am


Venue:             Lecture Hall, NIAS


All are cordially invited


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Abstract: Intrusion of Invasive Alien Piscine Species (IAPS) into an aquatic habitat and subsequent restructuring of the ecosystem dynamics remains one of the most important causes for worldwide extinction of indigenous fish fauna. Although, ecological consequence of the invasion by non-native fish species has been studied widely, understanding their impact on the behaviours and cognitive abilities of the indigenous fishes got popularity only in the recent past. Mounting evidences suggest that presence of IAPS in the habitat could alter individual and social behaviours of the indigenous fishes. In many contexts, such behavior changes may work as ‘evolutionary traps’ for the native species and lead them to the extermination from their habitat. Keeping our studies focusing the influence of a non-native invasive fish tilapia (Oereochromis mossambicus) on the social behaviour of an indigenous species climbing perch (Anabas testudineus) as an example, the present discussion will elucidate how knowledge of the behavioral adaptation exhibited by the indigenous species, in response to the presence of nonnatives, can help in designing effective strategies for managing the ever-growing IAPS populations in Indian waterbodies.


About the Speaker:  Binoy studies individual variation in behaviour, social plasticity and social decision-making in both epigean and subterranean fish species. His research on humans explores cultural difference in the attitude towards biotic and abiotic natural resources and its influence on social and environmental decision making. He is also interested in biology education and science communication. Binoy is a research affiliate in the Krasnow Institute for Advanced Study and the Centre for the Study of Neuro-Economics, George Mason University, USA and the Joint Secretary of the Ethological Society of India (ESI). For further details see:


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For further info, please contact Sangeetha Menon [ or] Coordinator of NIAS Wednesday Discussion Meetings

Wednesday, April 25, 2018