Dietary Overlap between Native and Exotic Fishes revealed through Gut Content Analysis at Head Baloki, Punjab, Pakistan

An imminent threat to indigenous freshwater ichthyofauna is the introduction of alien fishes that can alter behavior, population dynamics and native community structure. Thus, it necessary understand their feeding behaviour avoid any unwanted incalculable loss. At sampling site, Head Baloki habits both (L. calbasu, C. catla, L. rohita mrigala) (H. nobilis, H. molitrix, carpio, idella, auratus, O. aureus, niloticus mozambicus) species were analyzed through frequency occurrence percentage by number from January 2017-December 2019. Results indicated remained herbivorous while idella carpio mrigala detritivore, planktivore, phytoplanktivore generalist feeders, respectively. molitrix auratus showed planktivorus behaviour, Tilapia enlisted as detritivores Whereas, nobilis was feeder. Complex dietary overlap has been observed between different co-existing species. Current study uncovered some surprising results where diet altered detritus Change in habit strategy make them successful line with current findings ecosystem Punjab, Pakistan.