Bangana dero


Taxonomy [top]

Kingdom Phylum Class Order Family

Scientific Name: Bangana dero
Species Authority: (Hamilton, 1822)
Common Name/s:
English Kalabans
Chondrostoma semivelatus Valenciennes, 1844
Cyprinus dero Hamilton, 1822
Labeo dero (Hamilton, 1822)
Labeo rilli Chaudhuri, 1912
Sinilabeo dero (Hamilton, 1822)
Taxonomic Notes: Hamilton (1822) described Cyprinus (Bangana) dero from Brahmaputra River, India. It has treated as Labeo for sometime (Talwar and Jhingran 1991). Subgenus Bangana has been upgraded to the genus status, and Kullander et al. (1999) recognized the species as Bangana dero.

Assessment Information [top]

Red List Category & Criteria: Least Concern ver 3.1
Year Published: 2010
Date Assessed: 2010-01-22
Assessor/s: Vishwanath, W.
Reviewer/s: Barbhuiya, A.H., Rema Devi, K.R., Dahanukar, N., Chaudhry, S. & Juffe Bignoli, D.
Contributor/s: Molur, S.

Bangana dero is widely distributed and it is present within protected areas. Although some threats have been identified these are not considered as major and widespread. It is therefore assessed as Least Concern.

Geographic Range [top]

Range Description: The species is distributed throughout the Himalayan foothills, in India, Nepal, and China. Also found in Bangladesh. It has been introduced in peninsular India and Sri Lanka.
Bangladesh; China; India (Arunachal Pradesh, Assam, Manipur, Punjab, Uttaranchal, Uttar Pradesh); Nepal
Range Map: Click here to open the map viewer and explore range.

Population [top]


Information on the population data of this species is available from four out of nine surveyed locations (rivers) in Nepal.

Population Trend: Unknown

Habitat and Ecology [top]

Habitat and Ecology: The species is found to inhabit torrential hill-streams in shallow waters. Adults migrate to warmer regions of lakes and streams during winter.
Systems: Freshwater

Threats [top]

Major Threat(s): Since the fish is a torrential hill stream species, the possible threat may be habitat degradation, dams and other human activities.

Conservation Actions [top]

Conservation Actions:

The species is found in some of the national parks of Nepal, e.g., Koshi Tappu Wildlife Reserve, Chitwan National Park and Karnali National Park. There is a need for improved habitat protection at sites where this species is known to occur. Further survey work is needed to determine whether or not this species is experiencing a decline, or is undergoing natural population fluctuations.

Citation: Vishwanath, W. 2010. Bangana dero. In: IUCN 2013. IUCN Red List of Threatened Species. Version 2013.2. <>. Downloaded on 16 April 2014.
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