Pangasianodon hypopthalmus (Sauvage, 1878)

12. P. hypopthalmus as a biological to control weed fish

Sucker mouth armoured catfish which has become great menace in carp culture ponds in Andhra Pradesh resulting in 20% drop down of fish production, did not exist in ponds where Pangasianodon hypopthalmus culture is going on (Giri et al., 2021) [ 95]. Although few studies have indicated that large predatory fish such as Pangasius sanitwongsei be useful for controlling sucker mouth armoured catfish ( Pterygoplichthys spp ) but was found to be ineffective as a predator on Pterygoplichthys pardalis that measure a length of 10 mm and above because of their relatively large pectoral and dorsal spines (Chaichana and Sirapat, 2012) [ 96].