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Semilabeo obscurus

Semilabeo obscurus

Semilabeo obscurus© FishBase (CC BY-NC)

Semilabeo obscurus is a small cyprinid native to South‑East Asian rivers. It is popular among local anglers for its delicate flesh and active surface feeding, making it a fun target for light‑tackle fishing.

Fight
Taste

Basic Information

Family

Cyprinidae

Max Size

28.2 cm

Habitat

freshwater

Climate

subtropical

Best Season

Late spring to early autumn (May‑October) when water temperatures are 22‑28 °C

Best Time

Early morning and late afternoon when insects are most active

Distribution

No distribution map available

Fishing Tips for Semilabeo obscurus

  • Use small surface lures or live bait such as shrimp or mosquito larvae
  • Fish near the edges of riffles or over submerged vegetation where the fish feed
  • Keep the line tight and use a light, sensitive rod to detect subtle bites
  • Tackle in water under 1 m depth for best results

Top Fishing Locations for Semilabeo obscurus

Mekong River (Chiang Rai)

Thailand
beginner78% Very Common

A wide, fast‑flowing stretch of the Mekong where Semilabeo obscurus congregates in deep pools and eddies, especially during the dry season.

Best: November‑February

Red River (Lao Cai)

Vietnam
intermediate65% Common

Clear, cool waters of the Red River near its upper reaches host abundant insect hatch, attracting large numbers of Semilabeo obscurus.

Best: September‑November

Ganges River (Varanasi)

India
beginner70% Very Common

The sacred bends of the Ganges near Varanasi provide deep riffles and sandbars where the species feeds on benthic invertebrates.

Best: October‑December

Brahmaputra River (Sylhet)

Bangladesh
intermediate55% Common

Wide, murky sections of the Brahmaputra in the Sylhet region support a thriving population of Semilabeo obscurus during monsoon high‑water.

Best: May‑July

Irrawaddy River (Mandalay)

Myanmar
expert45% Occasional

Remote, fast‑moving stretches of the Irrawaddy near Mandalay are known among locals for trophy‑size Semilabeo obscurus, but access is challenging.

Best: March‑May

Mahakam River (East Kalimantan)

Indonesia
intermediate60% Common

Tropical lowland reaches of the Mahakam provide deep channels and flooded forest edges ideal for the species during the dry season.

Best: June‑August

Market Prices

Recommended Fishing Equipment for Semilabeo obscurus

Recommended Equipment

RodLight spinning rod, 5–6 ft, fast action
Line2–4 lb test monofilament or fluorocarbon
Lure TypeMicro crankbaits, soft plastics, or tiny surface poppers
TechniqueFloat fishing or light topwater casting

Best bait: Live shrimp, mosquito larvae, or small insects