EN

Sartor tucuruiensis

Declining

Overview

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

Sartor tucuruiensis faces severe threats from hydroelectric dam construction and operation in the Tocantins River basin, particularly the Tucuruí Dam which has dramatically altered water flow patterns and sediment deposition. The species' specialized habitat requirements make it extremely vulnerable to changes in river hydrology, with dam-induced flow modifications disrupting the specific current and substrate conditions this endemic fish requires for feeding and reproduction.

Threat summary

Habitat

This endemic fish species inhabits fast-flowing sections of the Tocantins River system in Brazil, particularly areas with rocky substrates and strong currents. It requires specific hydrological conditions found in rapids and cascades of the middle Tocantins River basin.

Other threatened species in ANOSTOMIDAE

VU

Hypomasticus thayeri

Declining
VU

Leporinus guttatus

Unknown
Leporinus muyscorumVU

Leporinus muyscorum

Declining
CR

Leporinus pitingai

Unknown

Frequently asked questions

Why is Sartor tucuruiensis classified as Endangered?
Sartor tucuruiensis 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. Sartor tucuruiensis faces severe threats from hydroelectric dam construction and operation in the Tocantins River basin, particularly the Tucuruí Dam which has dramatically altered water flow patterns and sediment deposition. The species' specialized habitat requirements make it extremely vulnerable to changes in river hydrology, with dam-induced flow modifications disrupting the specific current and substrate conditions this endemic fish requires for feeding and reproduction.
Where does Sartor tucuruiensis live?
Sartor tucuruiensis 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 Sartor tucuruiensis?
The main threats to Sartor tucuruiensis 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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