slender facelina
VU

slender facelina

Facelina auriculata

Unknown

Photo: Wikimedia Commons (CC) via https://en.wikipedia.org/wiki/Facelina_auriculata

Overview

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

The slender facelina faces significant pressure from coastal development and pollution in its shallow marine habitats. Climate change-induced ocean acidification threatens to weaken the shells of its hydrozoan prey, disrupting the food web this specialized nudibranch depends upon. Water quality degradation from agricultural runoff and urban discharge further compromises the delicate intertidal ecosystems where this species feeds and reproduces.

Threat summary

Habitat

The slender facelina inhabits shallow coastal waters, rocky intertidal zones, and kelp forests where it feeds primarily on hydrozoans and other small cnidarians. This nudibranch is typically found in areas with good water circulation and abundant prey species, often among algae and marine vegetation in depths ranging from the low tide zone to several meters below the surface.

MARINE· major

Threatened in Belgium

Calidris ferrugineaVU

Calidris ferruginea

Declining
VU

Olive Skipper

Pyrgus serratulae

Unknown
Scarce BlackneckCR

Scarce Blackneck

Lygephila craccae

Unknown
EN

knopphodeedderkopp

Walckenaeria nodosa

Unknown

Frequently asked questions

Why is slender facelina classified as Vulnerable?
slender facelina 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 slender facelina faces significant pressure from coastal development and pollution in its shallow marine habitats. Climate change-induced ocean acidification threatens to weaken the shells of its hydrozoan prey, disrupting the food web this specialized nudibranch depends upon. Water quality degradation from agricultural runoff and urban discharge further compromises the delicate intertidal ecosystems where this species feeds and reproduces.
Where does slender facelina live?
slender facelina occurs in Belgium, Canada, Denmark, France, Germany, and Guernsey (plus 10 other countries). Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to slender facelina?
The main threats to slender facelina 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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