VU

Harttia dissidens

Declining

Overview

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

Harttia dissidens faces primary threats from habitat degradation in its restricted range within Brazilian river systems. Dam construction and water diversions alter the fast-flowing rocky substrates essential for this armored catfish's survival. Agricultural runoff and urban pollution further compromise water quality in the watersheds where this species occurs.

Threat summary

Habitat

This armored catfish inhabits fast-flowing rocky streams and rivers in southeastern Brazil, typically found clinging to stone substrates in well-oxygenated waters. The species requires clear, swift currents with rocky or gravelly bottoms characteristic of highland drainage systems.

Other threatened species in LORICARIIDAE

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Ancistrus minutus

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EN

Pseudotocinclus tietensis

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Chaetostoma stannii

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Chaetostoma yurubiense

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Frequently asked questions

Why is Harttia dissidens classified as Vulnerable?
Harttia dissidens 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. Harttia dissidens faces primary threats from habitat degradation in its restricted range within Brazilian river systems. Dam construction and water diversions alter the fast-flowing rocky substrates essential for this armored catfish's survival. Agricultural runoff and urban pollution further compromise water quality in the watersheds where this species occurs.
Where does Harttia dissidens live?
Harttia dissidens 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 Harttia dissidens?
The main threats to Harttia dissidens 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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