Strugia ohridana 


Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Mollusca Gastropoda Littorinimorpha Hydrobiidae

Scientific Name: Strugia ohridana
Species Authority: Radoman, 1973

Assessment Information [top]

Red List Category & Criteria: Vulnerable D2 ver 3.1
Year Published: 2010
Date Assessed: 2009-11-25
Assessor(s): Hauffe, T., Albrecht, C. & Schreiber, K.
Reviewer(s): Feher, Z., Seddon, M.B. & Cuttelod, A.

Strugia ohridana is considered as Vulnerable D2, as although it is only found in one restricted location, the rate of decline in the habitat quality appears to be slow in the subterranean part of the spring system. However, this species could very quickly become Critically Endangered if the water quality or the water temperature change significantly.

Geographic Range [top]

Range Description:

Strugia ohridana is restricted to a large cave-spring, from which the Sum brook originates, south of Zagracani, about 4 km from Struga town, in the Former Yugoslavian Republic of Macedonia (FYROM)(Radoman 1983). The range is difficult to estimate, as this species lives in subterranean groundwaters, potentially occupying the whole subterranean system, which is inferred to be less than 100 km2.

Countries occurrence:
Macedonia, the former Yugoslav Republic of
Number of Locations: 1
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: The population trends are unknown. Recent surveys did not find it in the cave but this is a subterranean species that is difficult to sample.
Current Population Trend: Unknown
Additional data:
Population severely fragmented: No

Habitat and Ecology [top]

Habitat and Ecology: This subterranean species lives in a cave system, on stones in a spring with a constant temperature.
Systems: Freshwater
Continuing decline in area, extent and/or quality of habitat: No

Threats [top]

Major Threat(s): The water extraction for domestic use is restricting the habitat available for the species at certain periods of the year. However, this species is probably present in the subterranean cave system, where no threats are thought to occur.

Conservation Actions [top]

Conservation Actions:

There are no conservation actions in place for this species. More research on population trends and on distribution range is needed.

Citation: Hauffe, T., Albrecht, C. & Schreiber, K. 2010. Strugia ohridana. The IUCN Red List of Threatened Species 2010: e.T155968A4875784. . Downloaded on 30 November 2015.
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