Iberian arched-mouth nase
Iberochondrostoma lemmingii
Photo: Wikimedia Commons (CC) via https://en.wikipedia.org/wiki/Iberochondrostoma_lemmingii
Overview
A detailed profile for this species is sourced from the IUCN Red List of Threatened Species as assessments become available.
The Iberian arched-mouth nase faces severe pressure from water abstraction and dam construction throughout its Portuguese river systems, which fragment populations and alter natural flow regimes essential for spawning. Agricultural runoff and urban pollution have degraded water quality in many tributaries, while invasive fish species compete for resources and alter ecosystem dynamics. Climate change exacerbates these pressures through increased drought frequency and temperature fluctuations that stress this cold-water adapted species.
Habitat
This endemic Portuguese cyprinid inhabits clear, cool-running rivers and streams with rocky or gravel substrates, particularly in the upper and middle reaches of river systems. The species requires well-oxygenated waters with moderate to fast currents and is typically found in areas with abundant aquatic vegetation and overhanging riparian cover.
Other threatened species in Cyprinidae
Threatened in Portugal
Frequently asked questions
Why is Iberian arched-mouth nase classified as Vulnerable?
Where does Iberian arched-mouth nase live?
What are the main threats to Iberian arched-mouth nase?
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