|Scientific Name:||Romanichthys valsanicola|
|Species Authority:||Dumitrescu, Bănărescu & Stoica, 1957|
|Red List Category & Criteria:||Critically Endangered B1ab(ii,iii)+2ab(ii,iii) ver 3.1|
|Assessor(s):||Freyhof, J. & Kottelat, M.|
|Reviewer(s):||Bogutskaya, N., & Smith, K. (IUCN Freshwater Biodiversity Unit)|
The species was known from River Arges and its tributaries Vaslan and Raul Doamnei, however it is now only extant in a 1 km stretch of the Vaslan river. During construction of a reservoir on River Arges (1965) no water was left in the river downstream of the dam and the species disappeared. In the Valsan river, the population has been seriously impacted by stone extraction from the river, overfishing, pollution and damming of the upper part of the river. The survival of this species now depends on the continuity of water released by a single reservoir, and is was the focus of a project of the EU Life programme.
|Previously published Red List assessments:|
|Range Description:||Danube drainage in Romania; formerly known from upper River Arges and its tributaries Valsan and Raul Doamnei. Today restricted to 1 km of upper River Valsan upstream of Bradet village, but adjacent basins still unsufficiently surveyed.|
|Range Map:||Click here to open the map viewer and explore range.|
|Current Population Trend:||Unknown|
|Habitat and Ecology:||Habitat: |
Fast-flowing, cold and clear mountain streams. Usually hidden under stones.
Nocturnal, bottom dweller. Territorial; possibly spawns in second half of May. 120-150 eggs are deposited under stones. Feeds on insect larvae including mayflies (Ephemeroptera) and stoneflies (Plecoptera).
Threats to the species were deforestation, construction of roads, extraction of stones, pollution and dam constructions has driven this species to the edge of extinction.
Currently the species occurs only below a dam, and exists only because enough water is released from the dam.
|Conservation Actions:||Presently the focus of a project of the EU Life programme (now finished), but the species distribution is within a protected area.|
|Citation:||Freyhof, J. & Kottelat, M. 2008. Romanichthys valsanicola. The IUCN Red List of Threatened Species 2008: e.T19740A9008207.Downloaded on 17 August 2017.|
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