Marine biodiversity observations at Radakia and Ftelia (Greece) | August 23, 2026

© Chris Taklis - Miniopterus schreibersii & Rhinolophus euryale

​On August 23, 2026, biodiversity observations were carried out at Radakia and Ftelia in South-east Pelion, Greece.

The survey documented a diverse collection of marine organisms, including fishes, echinoderms, sponges, hydroids, a nudibranch and Posidonia oceanica, together with observations of bats associated with the coastal area.

The records provide another snapshot of the biodiversity occurring along this part of the South-east Pelion coastline and complement previous surveys from nearby locations.

Fish

• Mullus surmuletus (Striped Red Mullet)
• Chromis chromis (Mediterranean Damselfish)
• Symphodus tinca (East Atlantic Peacock Wrasse)
• Lithognathus mormyrus (Striped Seabream)
• Diplodus vulgaris (Common Two-banded Seabream)
• Diplodus annularis (Annular Seabream)
• Sarpa salpa (Salema Porgy)

Nudibranchs

• Caloria quatrefagesi

Sponges

• Aplysina aerophoba (Gold Sponge)
• Agelas oroides (Orange Crater Sponge)

Hydroids

• Pennaria disticha (Christmas Tree Hydroid)

Echinoderms

• Echinaster sepositus (Mediterranean Red Sea Star)
• Arbacia cavernicola

Seagrass

• Posidonia oceanica (Neptune Grass)

Bats

• Miniopterus schreibersii (Schreibers' Long-fingered Bat)
• Rhinolophus euryale (Mediterranean Horseshoe Bat)