Overview

Comprehensive Description

Glyptothorax pectinopterus :

Indus drainage : USNM 165061 (1; 45.9).

  • Alfred W. Thomson, Lawrence M. Page (2006): Genera of the Asian Catfish Families Sisoridae and Erethistidae (Teleostei: Siluriformes). Zootaxa 1345, 1-96: 95-95, URL:http://www.zoobank.org/urn:lsid:zoobank.org:pub:25EFA792-7DA4-4E0D-A69A-12591B8422DE
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Glyptothorax pectinopterus (McClelland 1842)

Glyptosternon pectinopterus McClelland 1842 ZBK : 587. Type locality: Simla Mts. [Ganges drainage] , India . Possible syntypes : AMS B.7562 (1).

Distribution: Indus and Ganges drainages, Pakistan and India (Hora, 1923b; Hora & Mukerji, 1936; Mirza & Hameed, 1974; Shrestha, 1990; Rafique, 2000).

  • Alfred W. Thomson, Lawrence M. Page (2006): Genera of the Asian Catfish Families Sisoridae and Erethistidae (Teleostei: Siluriformes). Zootaxa 1345, 1-96: 52-52, URL:http://www.zoobank.org/urn:lsid:zoobank.org:pub:25EFA792-7DA4-4E0D-A69A-12591B8422DE
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Glyptothorax pectinopterus :

NRM 30132 (27), 39.4-64.5 mm SL; India : Jhelum River, left bank, ca. 1 km downstream of Gingal, 34°7'34.0"N74°5'36.0"E .

  • Heok Hee Ng (2005): Glyptothorax botius (Hamilton, 1822), a valid species of catfish (Teleostei: Sisoridae) from northeast India, with notes on the identity of G. telchitta (Hamilton, 1822). Zootaxa 930, 1-19: 18-18, URL:http://www.zoobank.org/urn:lsid:zoobank.org:pub:94747539-043A-4EFF-9E65-C5FB0DCE474D
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Biology

Small, benthic species inhabiting pool and run areas of streams (Ref. 12045). Found in mountain rapids (Ref. 41236).
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Distribution

Range Description

This species is known from the Ganges River drainage in India and Nepal, and the Indus River drainage in India and Pakistan. Report of this species from Myanmar (Oo 2002) is not considered valid until further study.
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Asia: Pakistan, India and Nepal (Ref. 4833). Reported from Myanmar (Ref. 57739).
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Nepal, Pakistan, India, Bangladesh.
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Physical Description

Size

Maximum size: 178 mm SL
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Max. size

17.8 cm SL (male/unsexed; (Ref. 4833))
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Ecology

Habitat

Indus River Benthopelagic Habitat

This taxon is one of a number of benthopelagic species in the Indus River system. Benthopelagic fish inhabit the water column niche immediately above the bottom, feeding on benthos and zooplankton. Water quality issues in the Indus River habitat have historically been dominated by sediment loading in a watershed which is subject to high natural erosivity, and early disturbance by sedentary agriculture on the floodplains and valleys, which disturbances began in prehistory and continue to the present time. Major tributaries of the Indus rise in the Himalayan Mountains and the Hindu Kush; these influent rivers include the Chenab, Jhelum, Ravi and Sutlej. The Indus mainstem rises on the Tibetan Plateau and flows generally westward.

The Green Revolution has exacerbated water pollution by considerable additions of nitrate to promote crop growth. Other aggravating factors have included increasing amounts of herbicides and pesticides, as pressures to increase crop production expand. Flow of the perennial Indus is dominated by: (a) meltwaters from the Tibetan icefield, the third largest ice sheet formation in the world; (b) snowfall and snowmelt from higher elevation of the watershed; and (c) episodic monsoonal rains that lead to periodic flooding in the Indus River basin.

There are several high trophic level native benthopelagic freshwater fish taxa found in the Indus River system including: the 70 cm scaly osman (Diptychus maculatus), the 30 cm reba (Bangana ariza), the 30 cm Indus snowtrout (Ptychobarbus conirostris), the 30 cm Kunar snowtrout (Schizothorax labiatus), the 35 cm false osman (Schizopygopsis stoliczkai), the 47 cm Chirruh snowtrout (Schizothorax esocinus), and the 40 cm Sattar snowtrout (Schizopyge curvifrons)..

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Habitat and Ecology

Habitat and Ecology
This species inhabits swift-flowing rivers with a substrate of sand and rocks.

Systems
  • Freshwater
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Environment

benthopelagic; freshwater
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Conservation

Conservation Status

IUCN Red List Assessment


Red List Category
LC
Least Concern

Red List Criteria

Version
3.1

Year Assessed
2010

Assessor/s
Ng, H.H.

Reviewer/s
Allen, D., Vishwanath, W., Dahanukar, N. & Molur, S.

Contributor/s
Molur, S.

Justification
Glyptothorax pectinopterus is known from the Ganges River drainage in India and Nepal, and the Indus River drainage in India and Pakistan. Although there is insufficient information on the distribution, population (and its trends), and biology of this species, indications from current surveys are that this is still a relatively abundant species. It is therefore assessed as Least Concern.
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Population

Population
There is no information on the population and its trend for this species.

Population Trend
Unknown
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Threats

Major Threats
The threats to this species are unknown, since there is little information on the biology of this species and therefore the impact of potential threats (especially those of an anthropogenic nature) remains unknown. The current threats to aquatic biodiversity in all of its known distribution have also not been adequately identified. Kullander et al. (1999) did not consider this species to be under any threat.
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Least Concern (LC)
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Management

Conservation Actions

Conservation Actions
More research about the population size and trends, distribution and the biology of this species is needed, as there is insufficient information available. Potential threats to this species also need to be identified.
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Relevance to Humans and Ecosystems

Benefits

Importance

fisheries: of no interest
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