CR

Microglanis robustus

Unknown

Overview

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

Microglanis robustus faces severe threats from deforestation and agricultural expansion in its restricted range within Brazil's Atlantic Forest region. Dam construction and water pollution from agricultural runoff have degraded the clear, fast-flowing streams this catfish requires for survival. The species' extremely limited distribution makes it particularly vulnerable to habitat fragmentation and local extinctions.

Threat summary

Habitat

This small catfish inhabits clear, fast-flowing streams and tributaries within Brazil's Atlantic Forest biome. It requires well-oxygenated waters with rocky substrates and intact riparian forest cover.

FRESHWATER· major

Other threatened species in PSEUDOPIMELODIDAE

VU

Microglanis nigrolineatus

Unknown
VU

Lophiosilurus alexandri

Declining

Frequently asked questions

Why is Microglanis robustus classified as Critically Endangered?
Microglanis robustus 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. Microglanis robustus faces severe threats from deforestation and agricultural expansion in its restricted range within Brazil's Atlantic Forest region. Dam construction and water pollution from agricultural runoff have degraded the clear, fast-flowing streams this catfish requires for survival. The species' extremely limited distribution makes it particularly vulnerable to habitat fragmentation and local extinctions.
Where does Microglanis robustus live?
Microglanis robustus 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 Microglanis robustus?
The main threats to Microglanis robustus 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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