EN

Aguarunichthys tocantinsensis

Unknown

Overview

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

Aguarunichthys tocantinsensis faces severe pressure from hydroelectric dam construction along the Tocantins River system, which fragments its habitat and alters natural flow regimes essential for reproduction. Mining activities and agricultural runoff introduce heavy metals and sediments that degrade water quality in its restricted range. The species' limited distribution within the Tocantins River basin makes it particularly vulnerable to localized environmental changes and habitat modification.

Threat summary

Habitat

This catfish species inhabits the fast-flowing rocky rapids and tributaries of the Tocantins River system in Brazil. It prefers areas with strong currents, rocky substrates, and well-oxygenated waters typical of Neotropical river environments.

FRESHWATER· major

Other threatened species in PIMELODIDAE

EN

Steindachneridion punctatum

Unknown
EN

Steindachneridion scriptum

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EN

Conorhynchos conirostris

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VU

Pimelabditus moli

Unknown

Threatened in Brazil

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Mussismilia hispida

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Myrcia carioca

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Brasilia TapaculoEN

Brasilia Tapaculo

Scytalopus novacapitalis

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Frequently asked questions

Why is Aguarunichthys tocantinsensis classified as Endangered?
Aguarunichthys tocantinsensis 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. Aguarunichthys tocantinsensis faces severe pressure from hydroelectric dam construction along the Tocantins River system, which fragments its habitat and alters natural flow regimes essential for reproduction. Mining activities and agricultural runoff introduce heavy metals and sediments that degrade water quality in its restricted range. The species' limited distribution within the Tocantins River basin makes it particularly vulnerable to localized environmental changes and habitat modification.
Where does Aguarunichthys tocantinsensis live?
Aguarunichthys tocantinsensis 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 Aguarunichthys tocantinsensis?
The main threats to Aguarunichthys tocantinsensis 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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