“…Although, for sustainability reasons, the species should be propagated in mass scale but, often, the farming community of the region do not show interest to captive propagate the species due to its poor growth performance coupled with periodic mortalities in ponds and tanks (Das & Kalita ). One of the reasons for such poor growth rate attributes to cold climate of the region (Majhi & Das ). Evidently, the case of such poor growth performance do not restrict to C. stewartii lone, it's the fate of many exotic fish fauna those were introduced to the region from elsewhere as a part of species diversification (see review by Leveque, Oberdorff, Paugy, Stiassny & Tedesco ).…”