EN

Rezovo shemaya

Alburnus schischkovi

UnknownENEUENEU

Overview

A detailed profile for this species is sourced from the IUCN Red List of Threatened Species as assessments become available.

The Rezovo shemaya faces severe population decline due to habitat degradation in the Rezovo River system along the Bulgarian-Turkish border. Water pollution from agricultural runoff and urban development has compromised water quality, while dam construction and river channelization have altered natural flow patterns essential for spawning. The species' extremely limited range makes it particularly vulnerable to localized environmental changes.

Threat summary

Habitat

Endemic to the Rezovo River system in southeastern Bulgaria and northwestern Turkey, inhabiting clear, fast-flowing freshwater streams with rocky substrates. The species requires well-oxygenated waters with specific temperature ranges and spawning gravels typical of Balkan endemic cyprinids.

FRESHWATER· major

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Frequently asked questions

Why is Rezovo shemaya classified as Endangered?
Rezovo shemaya is classified as Endangered — facing a very high risk of extinction in the wild — because population numbers are declining steeply and key habitats are under sustained pressure. The Rezovo shemaya faces severe population decline due to habitat degradation in the Rezovo River system along the Bulgarian-Turkish border. Water pollution from agricultural runoff and urban development has compromised water quality, while dam construction and river channelization have altered natural flow patterns essential for spawning. The species' extremely limited range makes it particularly vulnerable to localized environmental changes.
Where does Rezovo shemaya live?
Rezovo shemaya occurs in Bulgaria, and Türkiye. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Rezovo shemaya?
The main threats to Rezovo shemaya are ai-1, ai-2, ai-3, and ai-4. The full IUCN-classified threat record for this species is detailed on the species page.

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