Yellow Shiner
CR

Yellow Shiner

Notropis calientis

Declining

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

Overview

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

The Notropis calientis faces severe threats from habitat degradation and water extraction in its limited desert spring systems. Agricultural development and groundwater pumping have dramatically reduced water levels in the thermal springs this species depends upon. Introduced predatory fish species and habitat modification from recreational activities further compound the pressures on remaining populations.

Threat summary

Habitat

This species is endemic to thermal springs and associated outflow streams in desert regions of the southwestern United States. It requires warm, clear spring waters with specific temperature ranges and minimal flow variation.

Marine neritic· major

Conservation measures underway

Species recovery

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Frequently asked questions

Why is Yellow Shiner classified as Critically Endangered?
Yellow Shiner is classified as Critically Endangered — facing an extremely high risk of extinction in the wild — because population sizes are very small, declining sharply, or restricted to a tiny range. The Notropis calientis faces severe threats from habitat degradation and water extraction in its limited desert spring systems. Agricultural development and groundwater pumping have dramatically reduced water levels in the thermal springs this species depends upon. Introduced predatory fish species and habitat modification from recreational activities further compound the pressures on remaining populations.
Where does Yellow Shiner live?
Yellow Shiner occurs in Mexico, and United States. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Yellow Shiner?
The main threats to Yellow Shiner are 1.1, 2.1, 2.3, and 5.3. The full IUCN-classified threat record for this species is detailed on the species page.

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