Gasterosteus crenobiontus
| Kingdom |
Phylum |
Class |
Order |
Family |
| ANIMALIA |
CHORDATA |
ACTINOPTERYGII |
GASTEROSTEIFORMES |
GASTEROSTEIDAE |
| Scientific Name: |
Gasterosteus crenobiontus |
| Species Authority: |
Bacescu & Mayer, 1956 |
Common Name/s:
| English |
– |
Techirghiol Stickleback |
|
Assessment Information
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| Red List Category & Criteria: |
Extinct
ver 3.1
|
| Year Assessed: |
2008 |
| Assessor/s: |
Freyhof, J. & Kottelat, M. |
| Reviewer/s: |
Bogutskaya, N., & Smith, K. (IUCN Freshwater Biodiversity Unit) |
Justification:
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.
|
Geographic Range
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| Range Description: |
Romania: freshwater springs of hypersaline littoral Lake Techirghiol (south of Constanta).
|
| Countries: |
Regionally extinct:
Romania
|
| Range Map: |
(click map to view full version)
|
Population
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| Population: |
Last recorded in the 1960's. Further surveys, most recently in 1998, all failed to find the species.
|
Habitat and Ecology
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| Habitat and Ecology: |
Habitat:
Freshwater springs.
Biology:
Spawns during an extended period, in February-October.
|
| Systems: |
Freshwater |
| 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.
|
Conservation Actions
[top]
| Conservation Actions: |
None.
|
