249
Habitat and Ecology
Inhabits fast-fl owing streams with boulders and
rocks and lakes along the Himalayan ranges.
Feeds on algae, plants and detritus.
Conservation Status
IUCN Red List, least concern.
Threats
It is a substrate specialist species. Throughout its
range, the boulders and gobbles are removed
leading to habitat loss accompanied by other
threats due to deforestation, damming and
siltation.
Remarks
Of no fi shery interest but a highly valuable food
fi sh of the Himalayan region.
Genus: Labeo Cuvier, 1817
22. Labeo dyocheilus (McClelland, 1839)
Cyprinus ( Labeo ) dyocheilus McClelland, 1839.
Asiat. Res ., 19(2): 268, 330, pl. 37, Fig. 1
(type locality: Brahmaputra river).
English Name
Brahmaputra Labeo.
Local Names
Boalla, Doongri, Kali.
Localities Surveyed
Asan River, Herbertpur.
Diagnostic Characters
D. 2–3/8–11, P. 1/14–16, V. 1/8, A. 2/5, C. 19,
L.l. 43.
Head comparatively longer, snout conical
projecting beyond the mouth and with a distinct lateral lobe, lips thick (not fringed) inside
of the lower lip with striations; one short maxillary barbel pair. Body dull greenish brown
laterally, darker above; fins dark in the
centre.
Maximum Length
90.0 cm.
Distribution
Uttarakhand
Garhwal
Division:
Chamoli,
Dehradun,
Haridwar, Pauri and districts; Kumaon Division:
Almora, Nainital and Pithoragarh districts. Rajaji
National Park.
India
All along Himalaya. Assam, Bihar, Sikkim, Uttar
Pradesh and West Bengal. Damodar and
Mahanadi rivers.
Elsewhere
Afghanistan, Bangladesh, Bhutan, Cambodia,
Laos, Myanmar, Nepal, Pakistan, Thailand and
Vietnam (uncertain).
Habitat and Ecology
Inhabits clear active currents of large rivers.
Increasing day length and water temperature are
favourable for ovarian development in female
under both captive and wild conditions, and it
breeds during monsoon season.
Conservation Status
IUCN Red List, least concern.
Remarks
Commercially important food fi sh.
Subfamily: Rasborinae
Genus: Aspidoparia Heckel, 1847
23. Aspidoparia jaya (Hamilton, 1822)
Cyprinus ( Cabdio ) jaya Hamilton, 1822. Fish.
Ganges : 383–384, 392 (type locality: rivers of
northern Bengal).
English Names
Carplet, Jaya.
Local Names
Chal, Chilwa.
Localities Surveyed
Asan River, Herbertpur.
14 Fish Fauna of Asan River
Habitat and Ecology
Inhabits fast-fl owing streams with boulders and
rocks and lakes along the Himalayan ranges.
Feeds on algae, plants and detritus.
Conservation Status
IUCN Red List, least concern.
Threats
It is a substrate specialist species. Throughout its
range, the boulders and gobbles are removed
leading to habitat loss accompanied by other
threats due to deforestation, damming and
siltation.
Remarks
Of no fi shery interest but a highly valuable food
fi sh of the Himalayan region.
Genus: Labeo Cuvier, 1817
22. Labeo dyocheilus (McClelland, 1839)
Cyprinus ( Labeo ) dyocheilus McClelland, 1839.
Asiat. Res ., 19(2): 268, 330, pl. 37, Fig. 1
(type locality: Brahmaputra river).
English Name
Brahmaputra Labeo.
Local Names
Boalla, Doongri, Kali.
Localities Surveyed
Asan River, Herbertpur.
Diagnostic Characters
D. 2–3/8–11, P. 1/14–16, V. 1/8, A. 2/5, C. 19,
L.l. 43.
Head comparatively longer, snout conical
projecting beyond the mouth and with a distinct lateral lobe, lips thick (not fringed) inside
of the lower lip with striations; one short maxillary barbel pair. Body dull greenish brown
laterally, darker above; fins dark in the
centre.
Maximum Length
90.0 cm.
Distribution
Uttarakhand
Garhwal
Division:
Chamoli,
Dehradun,
Haridwar, Pauri and districts; Kumaon Division:
Almora, Nainital and Pithoragarh districts. Rajaji
National Park.
India
All along Himalaya. Assam, Bihar, Sikkim, Uttar
Pradesh and West Bengal. Damodar and
Mahanadi rivers.
Elsewhere
Afghanistan, Bangladesh, Bhutan, Cambodia,
Laos, Myanmar, Nepal, Pakistan, Thailand and
Vietnam (uncertain).
Habitat and Ecology
Inhabits clear active currents of large rivers.
Increasing day length and water temperature are
favourable for ovarian development in female
under both captive and wild conditions, and it
breeds during monsoon season.
Conservation Status
IUCN Red List, least concern.
Remarks
Commercially important food fi sh.
Subfamily: Rasborinae
Genus: Aspidoparia Heckel, 1847
23. Aspidoparia jaya (Hamilton, 1822)
Cyprinus ( Cabdio ) jaya Hamilton, 1822. Fish.
Ganges : 383–384, 392 (type locality: rivers of
northern Bengal).
English Names
Carplet, Jaya.
Local Names
Chal, Chilwa.
Localities Surveyed
Asan River, Herbertpur.
14 Fish Fauna of Asan River