VU

Southern Frillfin

Bathygobius lineatus

Unknown

Overview

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

The Southern Frillfin faces significant pressure from coastal development and habitat modification throughout its limited range in southern Australia. Rising sea temperatures and ocean acidification associated with climate change pose additional threats to this temperate marine species. Pollution from urban runoff and recreational activities in shallow coastal waters further degrades the quality of its intertidal and subtidal rocky reef habitats.

Threat summary

Habitat

The Southern Frillfin inhabits rocky intertidal pools and shallow subtidal reefs along temperate coastlines. It typically occurs in areas with complex rocky substrates that provide shelter and foraging opportunities in depths ranging from the intertidal zone to approximately 10 meters.

MARINE· major

Frequently asked questions

Why is Southern Frillfin classified as Vulnerable?
Southern Frillfin 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 Southern Frillfin faces significant pressure from coastal development and habitat modification throughout its limited range in southern Australia. Rising sea temperatures and ocean acidification associated with climate change pose additional threats to this temperate marine species. Pollution from urban runoff and recreational activities in shallow coastal waters further degrades the quality of its intertidal and subtidal rocky reef habitats.
Where does Southern Frillfin live?
Southern Frillfin occurs in Colombia, Costa Rica, Cuba, Ecuador, France, and Mexico (plus 2 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 Southern Frillfin?
The main threats to Southern Frillfin 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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