CR

Trichogenes claviger

Unknown

Overview

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

Trichogenes claviger faces severe threats from deforestation and agricultural expansion in its restricted Atlantic Forest range in southeastern Brazil. The species' extremely limited distribution makes it particularly vulnerable to habitat fragmentation, while water pollution from agricultural runoff and urban development degrades the pristine stream conditions this catfish requires. Climate change poses additional risks through altered precipitation patterns that could affect the delicate hydrological balance of its mountain stream ecosystems.

Threat summary

Habitat

Trichogenes claviger inhabits clear, fast-flowing mountain streams in the Atlantic Forest of southeastern Brazil, typically found in areas with rocky substrates and dense riparian vegetation. The species requires pristine water conditions and is associated with well-oxygenated streams at elevations between 800-1200 meters.

FRESHWATER· major

Other threatened species in TRICHOMYCTERIDAE

EN

Cambeva tropeiro

Unknown
Trichomycterus venulosusCR

Trichomycterus venulosus

Unknown
VU

Ituglanis ramiroi

Unknown
CR

Listrura costai

Unknown

Frequently asked questions

Why is Trichogenes claviger classified as Critically Endangered?
Trichogenes claviger 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. Trichogenes claviger faces severe threats from deforestation and agricultural expansion in its restricted Atlantic Forest range in southeastern Brazil. The species' extremely limited distribution makes it particularly vulnerable to habitat fragmentation, while water pollution from agricultural runoff and urban development degrades the pristine stream conditions this catfish requires. Climate change poses additional risks through altered precipitation patterns that could affect the delicate hydrological balance of its mountain stream ecosystems.
Where does Trichogenes claviger live?
Trichogenes claviger occurs in across multiple regions. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Trichogenes claviger?
The main threats to Trichogenes claviger 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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