CR

Schizothorax grahami

Declining

Overview

Schizothorax grahami, the Kunming snowtrout, is a species of ray-finned fish in the genus Schizothorax. It is endemic to Lake Dianchi, its tributaries and connected springs, in Yunnan Province, China. The species has not been caught in the lake in the past 20 years, but it is present in one tributary drainage basin. The introduction of exotic fish is the main threat to this species.

Schizothorax grahami faces severe population decline primarily due to overfishing and habitat degradation in its native lake systems. Water pollution from agricultural runoff and urban development has significantly reduced water quality in critical breeding areas. Dam construction and water diversions have altered natural flow patterns, disrupting spawning cycles and fragmenting remaining populations.

Threat summary

Habitat

This endemic cyprinid inhabits high-altitude freshwater lakes and associated river systems in the Tibetan Plateau region. The species requires cold, well-oxygenated waters with rocky or gravelly substrates for spawning and feeding.

Wetlands (inland) - Permanent rivers/streams· majorWetlands (inland) - Permanent freshwater lakes· major

Conservation measures underway

Site/area protection

Frequently asked questions

Why is Schizothorax grahami classified as Critically Endangered?
Schizothorax grahami 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. Schizothorax grahami faces severe population decline primarily due to overfishing and habitat degradation in its native lake systems. Water pollution from agricultural runoff and urban development has significantly reduced water quality in critical breeding areas. Dam construction and water diversions have altered natural flow patterns, disrupting spawning cycles and fragmenting remaining populations.
Where does Schizothorax grahami live?
Schizothorax grahami occurs in China, and Hong Kong SAR China. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Schizothorax grahami?
The main threats to Schizothorax grahami are 5.4, 8.1, 9.3, and 9.3.4. The full IUCN-classified threat record for this species is detailed on the species page.

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