Onychostoma alticorpus
EN

Onychostoma alticorpus

Unknown

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

Overview

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

Onychostoma alticorpus faces severe population declines primarily due to dam construction and river modification throughout its native range in Chinese river systems. Water pollution from agricultural runoff and industrial discharge has degraded water quality in many tributaries where this species historically thrived. Overfishing and the use of destructive fishing methods, including electrofishing and poison, have further reduced populations in accessible river sections.

Threat summary

Habitat

This freshwater fish inhabits fast-flowing rivers and streams with rocky substrates in mountainous regions of China. It prefers clear, well-oxygenated waters with moderate to strong currents and typically occurs in tributaries of major river systems.

FRESHWATER· major

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Frequently asked questions

Why is Onychostoma alticorpus classified as Endangered?
Onychostoma alticorpus is classified as Endangered — facing a very high risk of extinction in the wild — because population numbers are declining steeply and key habitats are under sustained pressure. Onychostoma alticorpus faces severe population declines primarily due to dam construction and river modification throughout its native range in Chinese river systems. Water pollution from agricultural runoff and industrial discharge has degraded water quality in many tributaries where this species historically thrived. Overfishing and the use of destructive fishing methods, including electrofishing and poison, have further reduced populations in accessible river sections.
Where does Onychostoma alticorpus live?
Onychostoma alticorpus occurs in Taiwan. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Onychostoma alticorpus?
The main threats to Onychostoma alticorpus 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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