A new cyprinid fish, Parapsilorhynchus swaini sp. nov., is described based on specimens collected... more A new cyprinid fish, Parapsilorhynchus swaini sp. nov., is described based on specimens collected from a stream nearHarisankar, Mahanadi River basin of Odisha, India. It differs from other species of the genus in having following combinationof characters: elongated and slender body (depth at dorsal fin origin 16.9-18.7% SL); narrow and slender head (width60.0-68.7% HL, height at occiput 40.0-50.0% HL); narrow inter orbital space (46.6-50.0% HL); 33-34 lateral line scales; 3simple pectoral fin rays, poorly developed callous pad behind lower lip which is not delimited posteriorly, pectoral fin longerthan head length, presence of tubercles on snout and a black bar on the anal fin. With the description of this new species,distributional range of the genus Parapsilorhynchus is extended further north in the Eastern Ghats to the Mahanadi Riverdrainage of Odisha.
International Journal of Fisheries and Aquatic Studies, 2016
A systematic, updated checklist of freshwater fishes of Arunachal Pradesh is provided. A total of... more A systematic, updated checklist of freshwater fishes of Arunachal Pradesh is provided. A total of 259 fish species under 105 genera, 34 families and 11 orders has been compiled based on present collection, available collections and literatures during the year 2014 to 2016. Thirty four fish species has been added to the previous report of 225 fish species. Besides, the state is type localities of 47 fish species and 32 species are considered endemic in the state. The fish fauna includes 19 threatened species as per IUCN status. The state has high fisheries potential as it harbour many commercially important food, sport or ornamental fishes. The fish fauna is a mixture of endemic hill streams, Assamese, and widely distributed forms.
A new nemacheiline loach, Aborichthys iphipaniensis sp. nov. is described from the Iphipani River... more A new nemacheiline loach, Aborichthys iphipaniensis sp. nov. is described from the Iphipani River in Arunachal Pradesh, Northeastern India. It can be distinguished from congeners in having the following combination of characters: vent closer to snout tip than caudal fin base, long caudal peduncle, shallow body, short pre-dorsal, small eye, lateral line incomplete reaching pelvic fin origin, 33-35 almost uniform bars on lateral side of the body, and obliquely truncate caudal fin. It is considered to be a highly specialised form of the genus Aborichthys inhabiting the torrential river, as it has a very elongate body with a far forward position of the vent and long caudal peduncle.
A new species of the genus Osteobrama is described from the Mahanadi River, Tikarpada, Angul Dist... more A new species of the genus Osteobrama is described from the Mahanadi River, Tikarpada, Angul District, Odisha state, India. Osteobrama tikarpadaensis, new species, differs from its congeners in having two pairs of minute barbels; iii–iv unbranched dorsal-fin rays with 25–33 serrae on the last unbranched ray; 15–16 branched pectoral-fin rays, and 25–27 branched anal-fin rays. The status of Osteobrama dayi is discussed and shown to be a valid species. A key to the species of the genus is provided.Â
A new species of the genus Garra is described from the Ranga River of the Brahmaputra basin, Arun... more A new species of the genus Garra is described from the Ranga River of the Brahmaputra basin, Arunachal Pradesh, northeastern India. Garra magnacavus, new species, differs from its congeners in having an incipient proboscis with a transverse lobe, 15−19 rounded large pits on the snout, weakly developed non-fleshy central callous pad, and an elongate body with 42 lateral-line and 14−16 predorsal scales.Â
Garra simbalbaraensis, new species, is described from the Simbalbara River, Himachal Pradesh, Ind... more Garra simbalbaraensis, new species, is described from the Simbalbara River, Himachal Pradesh, India. The new species is distinguished from its congeners in having a combination of following characters: a prominent short, thick, unilobed and rounded proboscis, distinctly projecting downwards above the transverse groove; a black spot at the upper angle of the gill opening, 32−33 lateral line scales and 32 total vertebrae.Â
Journal of environmental biology / Academy of Environmental Biology, India, 2007
An attempt has been made to evaluate pollution status and aquatic bio-resources of the Moirang ri... more An attempt has been made to evaluate pollution status and aquatic bio-resources of the Moirang river near its mouth in the Loktak Lake. The river water is considered polluted as it has high concentration of free CO2 (14.8 mg/l), nitrite-nitrogen (0.040 mg/l), inorganic phosphorus (0.107 mg/l and faecal coliform bacteria (162/100 ml). Aquatic bio-resources of the river include 24 species of fishes representing 20 genera of 13 families and 16 species of macrophytes representing 14 genera of 9 families. The floral and faunal compositions of the river were mostly widely distributed forms that can survive in polluted environments. Fishery potential and conservation strategies of the river are discussed.
A new cyprinid fish, Parapsilorhynchus swaini sp. nov., is described based on specimens collected... more A new cyprinid fish, Parapsilorhynchus swaini sp. nov., is described based on specimens collected from a stream nearHarisankar, Mahanadi River basin of Odisha, India. It differs from other species of the genus in having following combinationof characters: elongated and slender body (depth at dorsal fin origin 16.9-18.7% SL); narrow and slender head (width60.0-68.7% HL, height at occiput 40.0-50.0% HL); narrow inter orbital space (46.6-50.0% HL); 33-34 lateral line scales; 3simple pectoral fin rays, poorly developed callous pad behind lower lip which is not delimited posteriorly, pectoral fin longerthan head length, presence of tubercles on snout and a black bar on the anal fin. With the description of this new species,distributional range of the genus Parapsilorhynchus is extended further north in the Eastern Ghats to the Mahanadi Riverdrainage of Odisha.
International Journal of Fisheries and Aquatic Studies, 2016
A systematic, updated checklist of freshwater fishes of Arunachal Pradesh is provided. A total of... more A systematic, updated checklist of freshwater fishes of Arunachal Pradesh is provided. A total of 259 fish species under 105 genera, 34 families and 11 orders has been compiled based on present collection, available collections and literatures during the year 2014 to 2016. Thirty four fish species has been added to the previous report of 225 fish species. Besides, the state is type localities of 47 fish species and 32 species are considered endemic in the state. The fish fauna includes 19 threatened species as per IUCN status. The state has high fisheries potential as it harbour many commercially important food, sport or ornamental fishes. The fish fauna is a mixture of endemic hill streams, Assamese, and widely distributed forms.
A new nemacheiline loach, Aborichthys iphipaniensis sp. nov. is described from the Iphipani River... more A new nemacheiline loach, Aborichthys iphipaniensis sp. nov. is described from the Iphipani River in Arunachal Pradesh, Northeastern India. It can be distinguished from congeners in having the following combination of characters: vent closer to snout tip than caudal fin base, long caudal peduncle, shallow body, short pre-dorsal, small eye, lateral line incomplete reaching pelvic fin origin, 33-35 almost uniform bars on lateral side of the body, and obliquely truncate caudal fin. It is considered to be a highly specialised form of the genus Aborichthys inhabiting the torrential river, as it has a very elongate body with a far forward position of the vent and long caudal peduncle.
A new species of the genus Osteobrama is described from the Mahanadi River, Tikarpada, Angul Dist... more A new species of the genus Osteobrama is described from the Mahanadi River, Tikarpada, Angul District, Odisha state, India. Osteobrama tikarpadaensis, new species, differs from its congeners in having two pairs of minute barbels; iii–iv unbranched dorsal-fin rays with 25–33 serrae on the last unbranched ray; 15–16 branched pectoral-fin rays, and 25–27 branched anal-fin rays. The status of Osteobrama dayi is discussed and shown to be a valid species. A key to the species of the genus is provided.Â
A new species of the genus Garra is described from the Ranga River of the Brahmaputra basin, Arun... more A new species of the genus Garra is described from the Ranga River of the Brahmaputra basin, Arunachal Pradesh, northeastern India. Garra magnacavus, new species, differs from its congeners in having an incipient proboscis with a transverse lobe, 15−19 rounded large pits on the snout, weakly developed non-fleshy central callous pad, and an elongate body with 42 lateral-line and 14−16 predorsal scales.Â
Garra simbalbaraensis, new species, is described from the Simbalbara River, Himachal Pradesh, Ind... more Garra simbalbaraensis, new species, is described from the Simbalbara River, Himachal Pradesh, India. The new species is distinguished from its congeners in having a combination of following characters: a prominent short, thick, unilobed and rounded proboscis, distinctly projecting downwards above the transverse groove; a black spot at the upper angle of the gill opening, 32−33 lateral line scales and 32 total vertebrae.Â
Journal of environmental biology / Academy of Environmental Biology, India, 2007
An attempt has been made to evaluate pollution status and aquatic bio-resources of the Moirang ri... more An attempt has been made to evaluate pollution status and aquatic bio-resources of the Moirang river near its mouth in the Loktak Lake. The river water is considered polluted as it has high concentration of free CO2 (14.8 mg/l), nitrite-nitrogen (0.040 mg/l), inorganic phosphorus (0.107 mg/l and faecal coliform bacteria (162/100 ml). Aquatic bio-resources of the river include 24 species of fishes representing 20 genera of 13 families and 16 species of macrophytes representing 14 genera of 9 families. The floral and faunal compositions of the river were mostly widely distributed forms that can survive in polluted environments. Fishery potential and conservation strategies of the river are discussed.
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