Taxonomy
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Actinopterygii
- Order
- Perciformes
- Family
- Pangasiidae
- Genus
- Pangasius
- Species
- conchophilus
Habitat
Shark catfish primarily inhabit large freshwater rivers and floodplains in Southeast Asia, such as the Mekong and Chao Phraya basins. They prefer areas with sandy or muddy substrates and moderate currents, often found in deeper pools or channels. These fish are adapted to tropical climates with seasonal water level changes.
Diet
Shark catfish are omnivorous, feeding on insects, crustaceans, small fish, and plant matter scavenged from the river bottom. They exhibit bottom-feeding behavior, using their barbels to detect food in murky waters. Feeding is most active at night when they are less vulnerable to predators.
Behavior
Shark catfish are nocturnal and schooling fish, often forming groups in deeper river sections for protection. They migrate seasonally with water levels, moving to flooded areas for feeding and spawning. These fish can be territorial during breeding but are generally not aggressive toward humans.
Fishing
Anglers targeting shark catfish in Southeast Asia's iconic rivers like the Mekong and Chao Phraya will find bottom fishing to be the most effective technique, using bait that mimics their natural diet of insects, crustaceans, and small fish—opt for live baits such as shrimp, worms, or cut fish, or try weighted lures for a more active approach. Recommended tackle includes a medium-heavy rod with 20-30 lb test line, a sturdy reel, and circle hooks to ensure quick hooksets and promote catch-and-release success, helping to sustain populations in these dynamic waterways. The best season is during the rainy months from May to August when water levels rise and fish are more active, with nighttime being prime as they feed nocturnally in deeper pools and channels with sandy or muddy substrates. Record sizes for shark catfish can reach up to 7 pounds 4 ounces, offering thrilling fights that highlight their strength as a sport fish. As a Least Concern species under IUCN, these fisheries benefit from angler-funded programs that support habitat protection and stocking efforts, making regulated fishing a key tool for conserving Southeast Asia's freshwater ecosystems through license fees and sustainable practices like slot limits where applicable.
Conservation Status
Listed as Least Concern by IUCN.