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Vretenar is a percid fish endemic to Macedonia, listed in Kottelat & Freyhof (2007) from the middle reaches of the Vardar River and its Treska tributary; however the authors noted that the species may be extinct. Arsovska et al. (2014) recently report the species from the upper Treska drainage, with a single find in a small tributary (Belica River) of the Treska River, above a reservoir. The IUCN listing is data deficient and needs updating; considering this very limited distribution and the assumed sensitivity to habitat changes, we recommend a status of critically endangered. The potential range of the species in the upper Treska drainage needs to be investigated, Zingel sp. are normally inhabiting larger rivers, and thus we presume the species is not limited to this single tributary.
Information on potential hydropower development in the upper Treska is unclear and needs updating
- IUCN-Redlist Data deficient
- EUR-HAB-DIR ---
- Bern Convention ---
- Hydropower Sensitivity Very High
- Balkan Dam Threat * Very High
* The assessment of Balkan Dam Threat is based on the loss of habitat that would occur if all or most of the planned hydropower schemes in the distribution range of the species were to be built. For more precise specification see Fish Study, page 8.