Iberian-Roach
VU

Iberian-Roach

Squalius alburnoides

Unknown

Photo: Wikimedia Commons (CC) via https://en.wikipedia.org/wiki/Squalius_alburnoides

Overview

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

The Iberian-Roach faces severe pressure from water abstraction and dam construction across its native river systems in Portugal and Spain, which fragment populations and alter natural flow regimes essential for spawning. Pollution from agricultural runoff and urban development degrades water quality in many watersheds, while invasive fish species compete for resources and hybridize with native populations, threatening genetic integrity.

Threat summary

Habitat

The Iberian-Roach inhabits freshwater river systems and streams throughout the Iberian Peninsula, preferring areas with moderate current and rocky or gravel substrates. This species is endemic to Portugal and Spain, occupying both lowland and montane river environments with clear, well-oxygenated water.

FRESHWATER· major

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Ohrid spirlinVU

Ohrid spirlin

Alburnoides ohridanus

Unknown
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Songi bariil

Barilius dimorphicus

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Barusia laconica

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Dianthus desideratus

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Trichoferus bergeri

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Frequently asked questions

Why is Iberian-Roach classified as Vulnerable?
Iberian-Roach is classified as Vulnerable because the population is declining and the species faces a high risk of extinction in the medium-term future if current pressures continue. The Iberian-Roach faces severe pressure from water abstraction and dam construction across its native river systems in Portugal and Spain, which fragment populations and alter natural flow regimes essential for spawning. Pollution from agricultural runoff and urban development degrades water quality in many watersheds, while invasive fish species compete for resources and hybridize with native populations, threatening genetic integrity.
Where does Iberian-Roach live?
Iberian-Roach occurs in Greece, Portugal, and Spain. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Iberian-Roach?
The main threats to Iberian-Roach 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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