Schistura isostigma

Last updated

Schistura isostigma
Scientific classification Red Pencil Icon.png
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Cypriniformes
Family: Nemacheilidae
Genus: Schistura
Species:
S. isostigma
Binomial name
Schistura isostigma
Kottelat, 1998 [2]

Schistura isostigma is a species of ray-finned fish in the stone loach genus Schistura . It occurs in streams with in moderate to fast currents, with sand and gravel beds in the Mekong basin in Laos, it should also occur in Cambodia and Thailand. [1]

Related Research Articles

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 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 bella is a species of ray-finned fish in the genus Schistura.

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 chindwinica is a species of ray-finned fish in the stone loach genus Schistura. This species has been recorded from only two streams in the drainage of the Brahmaputra in Manipur. The species is threatened by siltation caused by slash and burn agriculture and the proposed building of a dam with will flood some of the waterways it occurs in.

Schistura clatrata is a species of ray-finned fish in the stone loach genus Schistura. It occurs in the Kong River basin in southern Laos. It was found in several sites within rapids with stony bottoms on two separate surveys in 1999 and 2009.

Schistura dorsizona is a species of ray-finned fish in the stone loach genus Schistura. It is known to occur in the Mekong basin in Laos and Cambodia, it is expected that it occurs in eastern Thailand too.

Schistura implicata is a species of ray-finned fish in the stone loach genus Schistura. It occurs in streams with gravel or stony beds and a moderate to fast current in north eastern Laos and probably also in central Vietnam.

Schistura incerta is a species of ray-finned fish in the stone loach genus Schistura. It occurs in the Pearl River basin and Han Jiang in southeast China and northern Vietnam.

Schistura hingi is a species of ray-finned fish in the most speciose genus of stone loaches, Schistura. It occurs in the Pearl River basin of southeastern China and the coastal drainages in central Vietnam, it probably also occurs in the costal drainages of northern Vietnam too where it inhabits medium-sized rivers and streams where a substrate of rocks and gravel lies in riffles. The specific name honours a specimen collector, Ah Hing, whose efficiency in collecting for the botanist-ornithologist Geoffrey Herklots of Hong Kong University, Hing's patience and skill enabled Herre "to get many specimens”.

Schistura macrotaenia is a species of ray-finned fish, a stone loach, in the genus Schistura. It occurs in the Tengtiao Jiang River drainage in Yunnan and may also occur in the same river drainage in northern Vietnam.

Schistura namboensis is a species of ray-finned fish, a stone loach, in the genus Schistura. It normally occurs in the rapids and riffles of medium-sized rivers and streams but it can also be found in reaches with a slow current and sandy substrate. This species appears to have some resistance to organic pollution and occurs in streams flowing through settlements, and is often the last fish species to remain in such streams. It is found in the coastal drainages in southern and central Vietnam and also in Laos in some rivers which rise there before flowing into Vietnam.

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 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 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 similis is a species of ray-finned fish, a stone age, in the genus Schistura. It occurs in the Mae Nam Noi drainage, a tributary of the Salween which forms the border between Thailand and Myanmar. The species has only been recorded in Thailand but most likely occurs in Myanmar too. It has been recorded in streams with a moderate to fast current, in riffles, over substrates consisting of gravel to stone.

Schistura thanho is a species of ray-finned fish, a stone loach in the genus Schistura. It has only been recorded in the Vinh Thanh River drainage in Central Vietnam where it occurs in riffles with a very fast current. It is threatened by overfishing, the degradation and loss of habitat caused by dam constructions and deforestation resulting in the silting up of the streams it occurs in. The specific name is a reference to the “friendly people” of the Tha Nho ethnic community in Binh Dinh Province, Vietnam, where the type locality of this species is located.

References

  1. 1 2 Juffe Bignoli, D. (2012). "Schistura isostigma". IUCN Red List of Threatened Species . 2012: e.T181010A1688249. doi: 10.2305/IUCN.UK.2012-1.RLTS.T181010A1688249.en . Retrieved 18 November 2021.
  2. Froese, Rainer; Pauly, Daniel (eds.) (2006). "Schistura isostigma" in FishBase. April 2006 version.