|Scientific Name:||Gasterosteus crenobiontus|
|Species Authority:||Bǎcescu & Mayer, 1956|
|Red List Category & Criteria:||Extinct ver 3.1|
|Assessor(s):||Freyhof, J. & Kottelat, M.|
|Reviewer(s):||Bogutskaya, N., & Smith, K. (IUCN Freshwater Biodiversity Unit)|
The species was last recorded in the 1960's. The extinction is a result of hybridisation with G. aculeatus. The springs inhabited by G. crenobiontus used to be separated from the habitat of G. aculeatus by a hypersaline lake that served as a barrier between the species. Irrigation works transformed the lake into a brackish one, which was invaded by migratory G. aculeatus. Survey work since the 1960's, most recently in 1998, have failed to find the species.
|Range Description:||Romania: freshwater springs of hypersaline littoral Lake Techirghiol (south of Constanta).|
|Range Map:||Click here to open the map viewer and explore range.|
|Population:||Last recorded in the 1960's. Further surveys, most recently in 1998, all failed to find the species.|
|Habitat and Ecology:||Habitat: |
Spawns during an extended period, in February-October.
|Major Threat(s):||Hybridisation with G. aculeatus which invaded its habitat when irrigation transformed the hypersaline lake which served as a natural barrier between the two species.|
|Citation:||Freyhof, J. & Kottelat, M. 2008. Gasterosteus crenobiontus. The IUCN Red List of Threatened Species 2008: e.T135637A4167779.Downloaded on 29 September 2016.|
|Feedback:||If you see any errors or have any questions or suggestions on what is shown on this page, please provide us with feedback so that we can correct or extend the information provided|