CR

Pseudunio marocanus

Declining

Overview

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

Pseudunio marocanus faces severe population decline due to water extraction and dam construction that has dramatically altered river flow regimes in its native Moroccan watersheds. Agricultural intensification and urban development have increased sedimentation and pollution loads, degrading the clean, well-oxygenated waters this freshwater mussel requires. Climate change exacerbates these pressures through increased drought frequency and reduced river flows in the already water-stressed Mediterranean region.

Threat summary

Habitat

This freshwater mussel inhabits clean, flowing rivers and streams in the Atlas Mountains and coastal watersheds of Morocco. It requires well-oxygenated waters with stable substrates of sand, gravel, or rocky bottoms where it can filter-feed and complete its complex life cycle.

Wetlands (inland) - Permanent rivers/streams· major

Conservation measures underway

Species recoverySpecies reintroductionEx-situ conservationPolicies and regulations

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Frequently asked questions

Why is Pseudunio marocanus classified as Critically Endangered?
Pseudunio marocanus is classified as Critically Endangered — facing an extremely high risk of extinction in the wild — because population sizes are very small, declining sharply, or restricted to a tiny range. Pseudunio marocanus faces severe population decline due to water extraction and dam construction that has dramatically altered river flow regimes in its native Moroccan watersheds. Agricultural intensification and urban development have increased sedimentation and pollution loads, degrading the clean, well-oxygenated waters this freshwater mussel requires. Climate change exacerbates these pressures through increased drought frequency and reduced river flows in the already water-stressed Mediterranean region.
Where does Pseudunio marocanus live?
Pseudunio marocanus occurs in Morocco. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Pseudunio marocanus?
The main threats to Pseudunio marocanus are 7.2, 7.3, 9.3.4, and ai-1. The full IUCN-classified threat record for this species is detailed on the species page.

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