Schistura kaysonei | |
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Scientific classification | |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Actinopterygii |
Order: | Cypriniformes |
Family: | Nemacheilidae |
Genus: | Schistura |
Species: | S. kaysonei |
Binomial name | |
Schistura kaysonei | |
Schistura kaysonei, the Laotian cave loach, is a species of ray-finned fish in the genus Schistura . It is endemic to Laos where only found in streams in caves. Like other cave-adapted fish, it is blind and has little pigmentation. [2] This troglobitic species has been recorded from only a single cave in a karst landscape in Khammouane Province in Laos. Here it can be found around 100m from the cave entrance and its diet is thought to be organic detritus, such as bat guano, and micro-organisms. It is threatened by a decline in the quality and quantity of the water flowing through the case, caused by deforestation and increased agriculture, as well as potential overfishing for the aquarium trade. [1] The specific name honours Kaysone Phomvihane (1920-1992), who was president of Laos. [3]
Schistura oedipus is a species of troglobitic stone loach endemic to caves in the Pang Mapha karst formation in Mae Hongson Province in Thailand. It is only found in very fast flowing cave streams where it feeds on micro-organism and organic matter. This species is highly sensitive to disturbance, changes in water quality and hydrography. The specific name oedipus refers to the mythical Ancient Greek king of Thebes, Oedipus who tore out his own eyes, this species has degenerate eyes.
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 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.
Schistura bairdi is a species of ray-finned fish in the genus Schistura.
Schistura deansmarti is a species of ray-finned fish in the stone loach genus Schistura. It is found in cave streams in a karst landscape in the Thung Salaeng Luang National Park of Phitsanulok Province where it lives mainly on the stream beds and feeds on organic material and micro-organisms. The specific name honors the British speleologist who collected the original specimens and who works for the conservation of caves in Thailand.
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 khamtanhi is a species of ray-finned fish in the genus most speciose genus in the stone loach family, Schistura. It is found in the Kong River basin in Laos and in the main Mekong river in Cambodia and Laos where it is abundant, being an important quarry species for the fish traps at Kohne Falls. It inhabits rapids and Sony bottomed stretches of the main Mekong and its tributaries and it migrates past the Kohne Falls in January and February annually. It is the only member of the genus Schistura which is known to be migratory. The specific name honours Khamtanh Vatthanatham, a Fisheries Programme Officer of the Mekong River Commission who was very helpful to the Maurice Kottelat during his 1999 survey, in which this species was discovered.
Schistura nicholsi is a species of ray-finned fish, a stone loach, in the genus Schistura. It is found in the Mekong basin of north eastern Thailand, Laos and it is also likely to be found in Cambodia. It occurs in shallow riffles with moderate to fast flows. Human modification of the rivers' morphology through such activities as logging and agriculture are affecting this species range. However, its distribution covers a wide geographic range and it is assessed as Least Concern by the IUCN. The specific name honors John Treadwell Nichols (1883-1958) who was curator of fishes at the American Museum of Natural History and who made an important contribution to the ichthyology of China, and especially to the knowledge of loaches.
Schistura nomi is a species of ray-finned fish, a stone loach, in the genus Schistura. This species is found in streams which have a moderate to fast current, in riffles, where the bed consists of gravel to stone in the Kong River in Laos. The specific name honours a Mr Nom who was the describer, Maurice Kottelat's, driver in Laos.
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 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 punctifasciata is a species of ray-finned fish, a stone loach, in the genus Schistura. It is found only in Laos where it is found only downstream of the subterranean section of the Xe Bangfai, inhabiting still water as well as moderately fast flowing streams over gravel substrates, with clear water.
Schistura russa is a species of ray-finned fish, a stone loach, in the genus Schistura. It is known from only two locations in the Nam Tha drainage system in Laos where it is found in streams with a moderate to fast flow in riffles with pebble or stone stream beds.
Schistura sertata is a species of ray-finned fish, a stone loach, in the genus Schistura. It is only found in the Nam Xi, a small stream near Luang Prabang in Laos, where it was found between tree roots and among leaf litter within the stream.
Schistura sombooni is a species of ray-finned fish, a stone loach, in the genus Schistura. It is found only in the Mekong drainage system in Laos where it occurs in stretches of streams with a relatively slow current and a gravel or sandy stream bed. The specific name honours Somboon Phetphommasouk a liaison engineer with the Nam Theun 2 Electricity Consortium of Vientiane who rendered assistance and help in the field to the describer of this species, Maurice Kottelat.
Schistura spekuli is a species of ray-finned fish, a troglobitic stone loach, in the genus Schistura. It has been recorded from a single cave in central Vietnam. The specific name refers to SPEKUL, the speleological club of the University of Leuven in Belgium.
Schistura tenura is a species of ray-finned fish, a stone loach, in the genus Schistura. This species has only ever been recorded from the Nam Leuk catchment in Laos. It was recorded in a small stream with a bed of rock and stone, it has not been recorded since 1998 but there have been no searches for it.