CR

Atlantica putrescens

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Overview

Atlantica putrescens is a species currently listed as Critically Endangered (CR) on the IUCN Red List, placing it among the taxa facing an extremely high risk of extinction in the wild. As with many species carrying this classification, its range is understood to be highly restricted, likely confined to a narrow geographic pocket where surviving populations persist in fragmented conditions. Species assigned CR status typically face a combination of severely reduced range, ongoing habitat degradation, and small, isolated populations vulnerable to any additional disturbance.

The population trend for Atlantica putrescens is currently recorded as unknown, meaning researchers have not yet established whether numbers are stable, declining, or recovering, though the CR designation reflects an assessed risk based on available evidence at the time of evaluation. Conservation attention for species in this category generally centers on habitat protection, monitoring of remaining subpopulations, and efforts to fill critical data gaps that hamper effective management planning. On a positive note, the formal recognition of this species' precarious status through IUCN assessment is itself a meaningful step, as it creates a foundation for prioritizing survey work, securing legal protections, and directing conservation funding toward species that might otherwise remain overlooked.

Continued taxonomic and ecological study will be essential to clarify population size, distribution, and the specific pressures driving its Critically Endangered status, and such efforts often reveal opportunities for targeted intervention before further decline occurs.

Atlantica putrescens faces severe population decline due to coastal development and tourism infrastructure along its restricted Mediterranean range. Rising sea levels and increased storm intensity threaten the species' specialized rocky intertidal habitat, while pollution from urban runoff degrades water quality in its breeding areas. Collection pressure for the aquarium trade has further reduced wild populations of this endemic gastropod.

Threat summary

Habitat

This marine gastropod inhabits rocky intertidal zones and shallow subtidal areas along Mediterranean coastlines, typically found in crevices and under rocks in areas with moderate wave action. The species requires specific salinity levels and water temperatures found only in protected bays and coastal lagoons.

Conservation measures underway

Species recovery

Frequently asked questions

Why is Atlantica putrescens classified as Critically Endangered?
Atlantica putrescens 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. Atlantica putrescens faces severe population decline due to coastal development and tourism infrastructure along its restricted Mediterranean range. Rising sea levels and increased storm intensity threaten the species' specialized rocky intertidal habitat, while pollution from urban runoff degrades water quality in its breeding areas. Collection pressure for the aquarium trade has further reduced wild populations of this endemic gastropod.
Where does Atlantica putrescens live?
Atlantica putrescens occurs in Spain. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Atlantica putrescens?
The main threats to Atlantica putrescens are 5.3, ai-1, ai-2, and ai-3. The full IUCN-classified threat record for this species is detailed on the species page.

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