EN

Crenicichla jegui

Unknown

Overview

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

Crenicichla jegui faces severe pressure from habitat degradation in the Tocantins River basin, where dam construction and water regulation have altered natural flow patterns essential for breeding. Agricultural runoff and urban pollution have degraded water quality in its limited range, while overfishing and collection for the aquarium trade have reduced wild populations. The species' restricted distribution makes it particularly vulnerable to localized environmental changes.

Threat summary

Habitat

This cichlid inhabits rocky areas and fast-flowing sections of the Tocantins River system in Brazil, preferring clear waters with strong currents and abundant shelter among boulders and crevices. The species is adapted to specific water chemistry and flow conditions found in this major tributary of the Amazon basin.

FRESHWATER· major

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Frequently asked questions

Why is Crenicichla jegui classified as Endangered?
Crenicichla jegui 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. Crenicichla jegui faces severe pressure from habitat degradation in the Tocantins River basin, where dam construction and water regulation have altered natural flow patterns essential for breeding. Agricultural runoff and urban pollution have degraded water quality in its limited range, while overfishing and collection for the aquarium trade have reduced wild populations. The species' restricted distribution makes it particularly vulnerable to localized environmental changes.
Where does Crenicichla jegui live?
Crenicichla jegui 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 Crenicichla jegui?
The main threats to Crenicichla jegui 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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