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Schistura spiesi 

Scope: Global
Language: English
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Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Actinopterygii Cypriniformes Balitoridae

Scientific Name: Schistura spiesi Vidthayanon & Kottelat, 2003

Assessment Information [top]

Red List Category & Criteria: Vulnerable D2 ver 3.1
Year Published: 2012
Date Assessed: 2011-10-10
Assessor(s): Kottelat, M.
Reviewer(s): Allen, D. & Smith, K.
Contributor(s): Jenkins, A., Tan, H.H. & Kullander, F.F.
Justification:
The species is only known from the Tham Prawangdaeng cave in Phitsanulok Province, northern Thailand. The length of the cave stream (based on the length of the cave itself) is estimated as 3.7 km (Ellis 2010). It is considered very likely that the range of the species does not extend beyond the Tham Prawangdaeng cave formation. The species is assessed as Vulnerable (D2) on the basis of a restricted Area of Occupancy (estimated at between 8-26 km2, 1 location). Although the species habitat is within a National Park, it is considered vulnerable to pollution from logging, water pollution, and impacts from tourist activities. Current and potential threats are tourism development and degradation of the surrounding watershed and water quality, and combined with a very restricted Extent of Occurrence, the species could easily qualify  for a higher threatened category if further information becomes available on the scope and nature of threats.
Previously published Red List assessments:

Geographic Range [top]

Range Description:The species is only known from the Tham Prawangdaeng cave in Phitsanulok Province, northern Thailand, from where the species was first described in 2003 (Vidthayanon and Kottelat 2003). The length of the cave stream (based on the length of the cave itself) is estimated at between 3.7 km (Ellis 2010) and 13 km. It is considered very likely that the range of the species does not extend beyond the Tham Prawangdaeng cave or karst formation.
Countries occurrence:
Native:
Thailand
Additional data:
Number of Locations:1
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:Information on the species' population trend are unknown.
Current Population Trend:Unknown
Additional data:
Population severely fragmented:No

Habitat and Ecology [top]

Habitat and Ecology:The species is a blind, cave dwelling fish. Larger fish occur in the deeper zone, far from the entrance of the cave (Vidthayanon and Kottelat 2003).
Systems:Freshwater
Movement patterns:Not a Migrant

Use and Trade [top]

Use and Trade: Specimens of cave fish that may pertain to this species have been found in the ornamental fish trade.

Threats [top]

Major Threat(s): A potential risk to this species is collection for the aquarium trade, due to interest in the unusual habitat needs of this recently described blind, cave-dwelling loach. The species is also vulnerable to water pollution from domestic pollution and agricultural activities, and disturbance by visitors.

Conservation Actions [top]

Conservation Actions: The cave is situated within the Thung Salaeng Luang National Park (IUCN category II), and the species is listed under the Thai Wildlife Protection Act 1992. The cave was first formally explored in 2003 (Ellis 2010).

Citation: Kottelat, M. 2012. Schistura spiesi. The IUCN Red List of Threatened Species 2012: e.T169536A1278462. . Downloaded on 17 July 2018.
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