VU

Crenicichla hadrostigma

Unknown

Overview

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

Crenicichla hadrostigma faces significant 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 development along riverbanks have degraded water quality, while overfishing and collection for the aquarium trade have reduced wild populations. The species' restricted range within specific river systems makes it particularly vulnerable to localized environmental changes.

Threat summary

Habitat

This cichlid inhabits rocky areas and sandy substrates in clear, fast-flowing sections of the Tocantins River system in Brazil. It prefers areas with moderate to strong current and abundant rocky crevices that provide shelter and breeding sites.

FRESHWATER· major

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VU

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Unknown
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VU

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Frequently asked questions

Why is Crenicichla hadrostigma classified as Vulnerable?
Crenicichla hadrostigma is classified as Vulnerable because the population is declining and the species faces a high risk of extinction in the medium-term future if current pressures continue. Crenicichla hadrostigma faces significant 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 development along riverbanks have degraded water quality, while overfishing and collection for the aquarium trade have reduced wild populations. The species' restricted range within specific river systems makes it particularly vulnerable to localized environmental changes.
Where does Crenicichla hadrostigma live?
Crenicichla hadrostigma occurs in Argentina, and 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 hadrostigma?
The main threats to Crenicichla hadrostigma 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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