Mystacoleucus lepturus — Details

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Overview

Distribution

Range Description

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M. lepturus is found in the Mekong basin in China, Lao PDR, and Thailand.
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Asia: Mekong basin.
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Physical Description

Size

Max. size

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9.2 cm SL (male/unsexed; (Ref. 43281))
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Diagnostic Description

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Slender body, depth 3.4-3.8 times in SL; a single pair of barbels; black distal margin on dorsal (Ref. 43281).
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Ecology

Habitat

Habitat and Ecology

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Habitat and Ecology
M. lepturus is a benthopelagic species.

Systems
  • Freshwater
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Environment

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benthopelagic; freshwater
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Molecular Biology and Genetics

Molecular Biology

Statistics of barcoding coverage: Mystacoleucus lepturus

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Barcode of Life Data Systems (BOLDS) Stats
Public Records: 0
Species: 2
Species With Barcodes: 1

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Conservation

Conservation Status

IUCN Red List Assessment

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Red List Category
VU
Vulnerable

Red List Criteria
A2ce

Version
3.1

Year Assessed
2009

Assessor/s
Jenkins, A., Kullander, F.F. & Tan, H.H.

Reviewer/s
Collen, B., Darwall, W., Ram, M. & Smith, K. (SRLI Freshwater Fish Evaluation Workshop)

Contributor/s

Justification
M. lepturus has been assessed as Vulnerable due to an inferred population decrease of more than 30% in the past ten years, caused by habitat degradation, as a result of dams and other water management projects, and high levels of pollution in the Mekong River.
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Population

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Population
The population is thought to be decreasing at a rate of more than 30% over the previous ten years, although detailed numbers are not known.

Population Trend
Decreasing
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Threats

Threats

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Major Threats
A major threat to species in the Mekong river is habitat degradation from the construction of dams and other water management projects, more of which are planned for the future; the effects of such projects include disruption to the natural flood/drought cycle of the river, and changed levels of sedimentation and dissolved oxygen (International Rivers Network 2006).

There are also reports of high levels of pollution in the Mekong River basin, and water from the river is used for agricultural irrigation and to supply urbanised areas, causing further disruption to the natural hydrological cycle.
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Vulnerable (VU) (A2ce)
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Management

Conservation Actions

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Conservation Actions
There are no conservation measures currently known to be in action at habitat or species level.
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