Species learning profile
Red-tail black shark
Epalzeorhynchos bicolor
Red-tail black shark (Epalzeorhynchos bicolor) is a freshwater fish associated with river habitat in Southeast Asia. A velvet-black body contrasts with a single brilliant red tail.
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At a glance
- পানি
- মিঠা পানি
- Habitat
- নদী
- সর্বোচ্চ দৈর্ঘ্য
- 16 cm
- বিস্তৃতি
- Southeast Asia
- গোত্র
- Cyprinidae
- বর্গ
- Cypriniformes
Observe
How to identify Red-tail black shark
- A velvet-black body contrasts with a single brilliant red tail.
- Guide context: river habitat in Southeast Asia.
- Reported maximum length: 16 cm — roughly ruler-length. Maximum is not the same as typical adult size.
Field note: color, size, and markings can change with age, sex, season, depth, and lighting. Use several traits together.
Place and pattern
Where it lives—and how it behaves
Habitat and range
This species is associated with river habitat across Southeast Asia. Flow, seasonal floods, connected side channels, and access to spawning reaches all shape its river habitat.
Behavior
Defends bottom territories around cover
Food-web connections
What it eats and why it matters
Diet
Algae, detritus, and small invertebrates.
Ecological role
Grazes river surfaces and consumes detritus.
Remember
One fact worth keeping
Red-tail black shark প্রায় 16 সেমি পর্যন্ত বড় হয় এবং সাধারণত নদী-এর কাছে থাকে।
Think like a conservationist
A conservation lens
River fish depend on connected water. Dams, blocked migrations, pollution, and altered flow can matter even when the channel still looks wet.
This habitat lens is not a current population-status assessment. Status can differ among regions and change as new assessments are published; follow the reference links and local fisheries or wildlife agencies for current decisions.
Recall
Quick knowledge check
Which habitat is most closely associated with Red-tail black shark in this guide?
Keep exploring
References and further reading
Fishdle summarizes stable identification and ecology concepts in plain language. Taxonomy and population knowledge continue to change, so use primary assessments and regional authorities for conservation or management decisions.
Make connections