Author: Roberts & Vidthayanon, 1991
Comments: Occurs in large rivers (Ref. 12693) and enters flooded forests (Ref. 9497).  Found in rapids and in deep slow reaches (Ref. 37771).  Juveniles feed on prawns and insects; subadults and adults on prawns, insects and particularly mollusks which are more predominant in stomach contents than in any other <i>Pangasius</i> species (Ref. 7432) and on plants (Ref. 9497).  Migrates into the middle Mekong along the Thai-Lao border as water levels and turbidity begin to increase.  Reproduces early in the flood season and juveniles of 6 to 7 cm are taken by late June (Ref. 12693).  Marketed fresh (Ref. 12693).