Common Sponge

Spongia officinalis

Sighting evidence at Aquarium Bay, Marmaris

Photo: Platon Kleanthidis · CC BY-NC

Bath sponges and related species form substantial colonies on the deeper rock faces of Aquarium Bay, a reminder that the eastern Aegean was once one of the world's great natural sponge harvesting grounds. Their presence in good numbers reflects the clean, nutrient-rich water that characterises the bay. Nudibranchs and small crustaceans shelter among the sponge tissue, making any sponge a worthwhile focus for macro photography.

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.