Valencia chub
VU

Valencia chub

Squalius valentinus

UnknownVUEUVUEU

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

Overview

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

The Valencia chub faces severe pressure from water abstraction and dam construction throughout its Mediterranean river systems, which fragment populations and alter natural flow regimes essential for spawning. Introduced non-native fish species, particularly common carp and mosquitofish, compete for resources and prey on juveniles. Agricultural runoff and urban pollution degrade water quality in the species' already limited range, while climate change intensifies drought conditions that further reduce available habitat.

Threat summary

Habitat

The Valencia chub inhabits clear, fast-flowing rivers and streams in the Mediterranean basin, particularly in eastern Spain's Valencia region. It prefers well-oxygenated waters with rocky or gravel substrates and requires areas with adequate riparian vegetation for shelter and feeding.

FRESHWATER· major

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Frequently asked questions

Why is Valencia chub classified as Vulnerable?
Valencia chub 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 Valencia chub faces severe pressure from water abstraction and dam construction throughout its Mediterranean river systems, which fragment populations and alter natural flow regimes essential for spawning. Introduced non-native fish species, particularly common carp and mosquitofish, compete for resources and prey on juveniles. Agricultural runoff and urban pollution degrade water quality in the species' already limited range, while climate change intensifies drought conditions that further reduce available habitat.
Where does Valencia chub live?
Valencia chub occurs in Spain. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Valencia chub?
The main threats to Valencia chub 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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