CR

Caecogobius cryptophthalmus

Unknown

Overview

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

Caecogobius cryptophthalmus faces severe threats from groundwater extraction and pollution in its highly restricted cave habitat in the Dinaric Alps. The species' extremely limited distribution makes it exceptionally vulnerable to any disturbance of the underground aquifer systems it depends upon. Agricultural runoff and industrial contamination pose additional risks to water quality in the karst landscape above its subterranean environment.

Threat summary

Habitat

This highly specialized goby inhabits underground cave systems and subterranean waters in the Dinaric karst region of southeastern Europe. The species is adapted to the perpetually dark, stable temperature conditions of deep groundwater environments within limestone cave networks.

Wetlands (inland)· majorCaves and subterranean habitats· major

Conservation measures underway

Site/area protectionSite/area managementSpecies recoveryCompliance and enforcement

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Frequently asked questions

Why is Caecogobius cryptophthalmus classified as Critically Endangered?
Caecogobius cryptophthalmus 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. Caecogobius cryptophthalmus faces severe threats from groundwater extraction and pollution in its highly restricted cave habitat in the Dinaric Alps. The species' extremely limited distribution makes it exceptionally vulnerable to any disturbance of the underground aquifer systems it depends upon. Agricultural runoff and industrial contamination pose additional risks to water quality in the karst landscape above its subterranean environment.
Where does Caecogobius cryptophthalmus live?
Caecogobius cryptophthalmus occurs in Philippines. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Caecogobius cryptophthalmus?
The main threats to Caecogobius cryptophthalmus are 6.1, 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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