Scuba Season

Fan Mussel

Pinna nobilis

Sighting evidence at Karaburun Peninsula Marine Reserve, Albania

Fan Mussel

Photo: Falk Viczian Solarboot-Projekte gGmbH · CC BY-NC

Karaburun's posidonia meadows contain one of the largest known remaining populations of fan mussels, the Mediterranean's largest bivalve, which can reach 1.2 metres in length. Critically endangered due to a Haplosporidium parasite that has devastated over 99 percent of Mediterranean populations since 2016, individuals here are closely monitored by Albanian marine biologists as part of ongoing survival studies. The fan mussel hosts a commensal shrimp and crab in its mantle cavity, and each living specimen encountered in the wild is a significant conservation event.

Evidence at this site

0 records within 25 km

Confidence: low

No date on file
How is this calculated?

Sighting evidence is compiled from iNaturalist observation records within a set proximity radius, filtered for quality-grade observations. “Last confirmed” is the date of the most recent research-grade record. Record count covers a rolling 24-month window. Confidence reflects record count, recency, and consistency of seasonal signal.