EN

Pseudotocinclus tietensis

Unknown

Overview

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

Pseudotocinclus tietensis faces severe pressure from habitat degradation in its restricted range within the Tietê River basin of São Paulo state, Brazil. Agricultural expansion and urban development have significantly altered riparian zones and water quality in the region. Dam construction and water extraction for irrigation have modified natural flow regimes, while sedimentation from deforestation upstream threatens the rocky substrates this armored catfish requires for feeding and reproduction.

Threat summary

Habitat

This small armored catfish inhabits rocky substrates in clear, fast-flowing streams and tributaries within the upper Tietê River system in São Paulo state, Brazil. It prefers well-oxygenated waters with moderate to strong currents where it can graze on algae and biofilm from rock surfaces.

Other threatened species in LORICARIIDAE

VU

Hypancistrus vandragti

Unknown
EN

Chaetostoma yurubiense

Unknown
EN

Chaetostoma stannii

Unknown
EN

Harttia depressa

Unknown

Frequently asked questions

Why is Pseudotocinclus tietensis classified as Endangered?
Pseudotocinclus tietensis 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. Pseudotocinclus tietensis faces severe pressure from habitat degradation in its restricted range within the Tietê River basin of São Paulo state, Brazil. Agricultural expansion and urban development have significantly altered riparian zones and water quality in the region. Dam construction and water extraction for irrigation have modified natural flow regimes, while sedimentation from deforestation upstream threatens the rocky substrates this armored catfish requires for feeding and reproduction.
Where does Pseudotocinclus tietensis live?
Pseudotocinclus tietensis 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 Pseudotocinclus tietensis?
The main threats to Pseudotocinclus tietensis 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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