Found in the Mekong River (Ref. 43281). Found in Ban Hang Khone at Don Khone, 3 km below the fall line of the great waterfalls of the Mekong basin at Lee Pee (Ref. 9497). Enters flooded forest (Ref. 9497). The most important pangasiid in the overall fish catch at Ban Hang Khone during June-July 1993 (Ref. 9497). During the period of high water (July-October) it enters the flooded forest and feeds heavily on fruits (Ref. 9497). Migrates upstream from March to August from the Khong Island, just upstream Khone Falls in Laos to Chiang Saen in Thailand (Ref. 37770). Also undertakes reproductive and trophic upstream migrations through Hoo Som Yai at the Great Fault Line on the Mekong River, Champassack Province (Ref. 37771). Museum: Mekong at Ban Hang Khone, just below Khone falls, CAS 94870 (Ref. 5515). Also Ref. 7432, 30857, 37767, 37769, 44002, 56905.