VU

Curimata mivartii

Local name: Vizcaína

Unknown

Overview

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

The Vizcaína faces mounting pressure from dam construction and river channelization throughout its range in South American river systems, which disrupts its migratory spawning patterns and fragments populations. Agricultural runoff and mining activities have degraded water quality in key tributaries, while overfishing in some regions has reduced breeding populations. Climate-driven changes in seasonal flooding patterns further threaten this species' reproductive success, as it depends on predictable water level fluctuations for spawning.

Threat summary

Habitat

The Vizcaína inhabits medium to large rivers and their tributaries across the Amazon and Orinoco basins, preferring areas with moderate current and sandy or muddy substrates. This species undertakes seasonal migrations between main river channels and floodplain areas, requiring connectivity between different aquatic habitats for successful reproduction.

FRESHWATER· major

Frequently asked questions

Why is Vizcaína classified as Vulnerable?
Vizcaína 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. The Vizcaína faces mounting pressure from dam construction and river channelization throughout its range in South American river systems, which disrupts its migratory spawning patterns and fragments populations. Agricultural runoff and mining activities have degraded water quality in key tributaries, while overfishing in some regions has reduced breeding populations. Climate-driven changes in seasonal flooding patterns further threaten this species' reproductive success, as it depends on predictable water level fluctuations for spawning.
Where does Vizcaína live?
Vizcaína occurs in Colombia. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Vizcaína?
The main threats to Vizcaína 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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