Schistura atra | |
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Scientific classification | |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Actinopterygii |
Order: | Cypriniformes |
Family: | Nemacheilidae |
Genus: | Schistura |
Species: | S. atra |
Binomial name | |
Schistura atra | |
Schistura atra is a species of ray-finned fish in the stone loach genus Schistura . This species has only been recorded from the drainage systems of the Nam Theun and Nam Gnouang, tributaries of the Mekong, in Laos. It can be found in the parts of streams with deep water and fast currents where it lives among the rocks. The lower parts of the basins it occurs in have been impacted by damming and this species has probably been extirpated from these area but it continues to survive upstream of the reservoirs. The habitat of this fish is affected by deforestation, agriculture and gold mining as well as the dams. [1]
Schistura alticrista is a species of ray-finned fish in the genus Schistura. This stone loach has only been recorded in the basin of the Nam Mae Yuam, a tributary of the Salween River in Mae Hong Son Province, north west Thailand. It has been reported that this species has been recorded in the Salween mainstream near the inflow of the Nam Mae Yuam. The habitat from which the species has been collected is small streams over a substrate of pebbles. This fish is harvested by subsistence fisheries. Species in the genus Schistura are omnivores although the majority of their diet is animal matter such as zooplankton, insects, worms and crustaceans with small amounts of plant material and detritus. S. alticrista is occasionally traded in the aquarium trade.
Schistura amplizona is a species of ray-finned fish in the stone loach genus Schistura. It been recorded from only two river basins, the Nam Tha and Nam Youan, in northern Laos, of these the Nam Youam flows to Xishuangbanna in Yunnan, China and specimens of this species have been collected very close to the border so this species may occur in Yunnan. Its preferred habitat appears to be streams with a moderate flow and a bed of rock or pebbles. This species is harvested by local subsistence fisheries but the main potential threats are alteration of natural water courses through deforestation and agriculture.
Schistura aramis is a species of ray-finned fish in the stone loach genus Schistura from the Nam Nua catchment, a tributary of the Nam Ou in Laos, it may also possibly occur in Vietnam. The specific name comes from one of Alexandre Dumas' The Three Musketeers, Aramis as do that of two other Schistura species endemic to the Nam Ou basin, S. athos and S.porthos.
Schistura athos is a species of ray-finned fish in the stone loach genus Schistura, its specific name athos is from, Athos, one of the Three Musketeers by Alexandre Dumas, as do that of two other Schistura species endemic to the Nam Ou basin, S. aramis and S.porthos. It has only been recorded from the Nam Ou basin in Laos, as well as from a stretch of the Nam Noua, a tributary of the Nam Ou, in Vietnam. S. athos has been collected from rapids and stretches of the main river with stone substrates.
Schistura breviceps is a species of ray-finned fish in the stone loach genus Schistura. It has only been recorded in the drainage system of the Mae Nam Kok, a tributary of the Mekong in northern Thailand and Myanmar. It has been seen in streams with a moderate flow over gravel or stone stream beds.
Schistura cataracta is a species of ray-finned fish in the stone loach genus Schistura. It occurs in the Nam Theun and Nam Gnouang, in the Mekong basin of Laos. It prefers stretches of rivers with fast current and a stony or rocky substrate, but it does occasionally occur over gravel or sandy substrates. It can also be found in reservoirs, albeit at low densities and dams are the biggest threat to this species.
Schistura caudofurca is a species of ray-finned fish in the stone loach genus Schistura. It occurs in the Red River system of southern China and northern Viet Nam, and also the Nam Mat, Nam Xam and Nam Ma river systems in Laos. It prefers streams with a moderate to fast flow and gravel or rock substrates.
Schistura coruscans is a species of ray-finned fish in the stone loach genus Schistura from the Nam San drainage, a tributary of the Nam Ngum in Laos.
Schistura globiceps is a species of ray-finned fish in the genus Schistura. It has only been collected from a single stream in the upper Nam Tha watershed in Laos where it was found under stones in a fast flowing hill stream.
Schistura kongphengi is a species of ray-finned fish, a stone loach, in the genus Schistura, the most specious of the genera of stone loaches. It occurs in the middle and upper parts of the Nam Gnouang drainage south to the drainage of the Xe Bang Hiang in Laos and Vietnam. It has been recorded from dstreams with moderate to fast currents over substrates of gravel and sands and among riffles and rapids. The specific name honours Kongpheng Bouakhamvongsa, an official with the Department of Livestock and Veterinary of the Ministry of Agriculture of the Lao People's Democratic Republic, for the help he gave to Maurice Kottelat with his field work in Laos.
Schistura menanensis is a species of ray-finned fish, a stone loach in the genus Schistura. It has only been recorded the Mae Nam Nan drainage, a branch of the Chao Phraya in Thailand where it has been observed in streams with moderate to fast currents, in riffles, with gravel to stone beds. The specific name menanensis refers to the type locality of this species on the Mae Nam Nam.
Schistura moeiensis is a species of ray-finned fish, a stone loach, in the genus Schistura. It is found in the Mae Nam Noi drainage system, a tributary of the Salween, the Mae Nam Noi forms the border between Thailand and Myanmar. It has been recorded from streams which have a moderate to fast current, in riffles, over beds consisting of gravel to stone.
Schistura novemradiata is a species of ray-finned fish, a stone loach, in the genus Schistura which has been recorded from a single locality in the upper Nam Tha watershed in Laos where it was found in a small stream over a substrate consisting of gravel and stone.
Schistura nudidorsum is a species of ray-finned fish, a stone loach, in the genus Schistura. This species has only been recorded from the drainage basins of the Nam Theun and Nam Gnouang, tributaries of the Mekong in Laos. It occurs in streams with a moderate to fast current and a substrate which varies from gravel to stone, in riffles. It is threatened by the construction of dams, as well as logging, deforestation, agriculture and gold mining.
Schistura obeini is a species of ray-finned fish, a stone loach, in the genus Schistura. It has been recorded from the Nam Theun and Nam Gnouang rivers in Laos where it inhabits fast or very fast flowing water over pebble or stone beds in the headwaters of the rivers. The specific name honours François Obein of the Nam Theun 2 Electricity Consortium in Vientiane for the assistance he gave to the describer Maurice Kottelat in the field and for his organisation of logistics in the field.
Schistura personata is a species of ray-finned fish, a stone loach, in the genus Schistura.It has only been recorded in the Nam San, a tributary of the Nam Ngum in the Mekong Basin of Laos where it can be found in moderately fast or fast flowing streams, among riffles, with a stone or gravel bed. Its population has been impacted by dams and by deforestation, agriculture and small scale gold mining and it is thought that it has declined.
Schistura pertica is a species of ray-finned fish, a stone loach, in the genus Schistura. It has only been recorded once, in 1997, from a very small stream entering the Nam Ou River, downstream of the Muang Khoa River in northern Laos, it is expected to occur elsewhere in the Nam Ou drainage. It was observed in streams with a moderate to fast current, in riffles, over beds varying from gravel to stone
Schistura porthos is a species of ray-finned fish in the stone loach genus Schistura from the Mekong basin; the Nam Ngiap, Nam Khan, Nam Xuang, Nam Ou and Nam Tha drainages in northern Laos and the Luosuojiang drainage in Xishuangbanna, Yunnan. The specific name comes from one of Alexandre Dumas' The Three Musketeers, Aramis as do that of two other Schistura species endemic to the Nam Ou basin, S. athos and S.aramis.
Schistura quasimodo is a species of stone loach in the genus Schistura. It is known from a single stream from the Nam Ngum drainage in Laos, a tributary of the Mekong. It has a cylindrical body, sometimes with a conspicuous hump. The known material suggests a maximum standard length of about 48 mm (1.9 in).
Schistura xhatensis is a species of ray-finned fish, a stone loach, in the genus Schistura. It has been recorded once, in 1999, on the Nam Xhat River, in the Nam Khan drainage, a tributary of the Mekong in Laos.