CR

Pseudotocinclus juquiae

Unknown

Overview

Pseudotocinclus juquiae is a species of freshwater ray-finned fish belonging to the family Loricariidae, the suckermouth armoured catfishes, and the subfamily Hypoptopomatinae, the cascudinhos. This catfish is endemic to Brazil.

Pseudotocinclus juquiae faces severe threats from habitat degradation in Brazil's Atlantic Forest region, where deforestation and agricultural expansion have dramatically reduced suitable stream environments. Water pollution from agricultural runoff and urban development further compromises the pristine freshwater conditions this endemic catfish requires. The species' extremely limited range makes it particularly vulnerable to localized environmental changes and catastrophic events.

Threat summary

Habitat

This endemic armored catfish inhabits clear, fast-flowing streams and tributaries within Brazil's Atlantic Forest biome. It requires well-oxygenated waters with rocky substrates and abundant riparian vegetation that provides shade and organic matter input.

FRESHWATER· major

Other threatened species in LORICARIIDAE

EN

Ancistrus minutus

Declining
VU

Harttia dissidens

Declining
EN

Pseudotocinclus tietensis

Unknown
EN

Chaetostoma stannii

Unknown

Threatened in Brazil

Striped SmoothhoundCR

Striped Smoothhound

Mustelus fasciatus

Declining
VU

Mussismilia hispida

Declining
VU

Myrcia carioca

Declining
Brasilia TapaculoEN

Brasilia Tapaculo

Scytalopus novacapitalis

Declining

Frequently asked questions

Why is Pseudotocinclus juquiae classified as Critically Endangered?
Pseudotocinclus juquiae 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. Pseudotocinclus juquiae faces severe threats from habitat degradation in Brazil's Atlantic Forest region, where deforestation and agricultural expansion have dramatically reduced suitable stream environments. Water pollution from agricultural runoff and urban development further compromises the pristine freshwater conditions this endemic catfish requires. The species' extremely limited range makes it particularly vulnerable to localized environmental changes and catastrophic events.
Where does Pseudotocinclus juquiae live?
Pseudotocinclus juquiae occurs in Brazil. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Pseudotocinclus juquiae?
The main threats to Pseudotocinclus juquiae 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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