Marine biodiversity observations at Katigiorgis (Greece) | September 7, 2026

© Chris Taklis - Stylocidaris affnis

​On September 7, 2026, marine biodiversity observations were carried out at Katigiorgis in South-east Pelion, Greece.

The survey documented a variety of organisms from the shallow coastal environment, including several fish species as well as echinoderms, sponges, molluscs and hydrozoans.

The observations provide another snapshot of the biodiversity associated with the coastal habitats around Katigiorgis and contribute to the continuing documentation of marine species in South-east Pelion.

Fish

• Gobius incognitus (Incognito Goby)
• Sarpa salpa (Salema Porgy)
• Lithognathus mormyrus (Striped Seabream)
• Trachinotus ovatus (Pompano)
• Mugilidae (Mullets)
• Atherina boyeri (Big-scale Sand Smelt)
• Diplodus sargus (White Sea Bream)
• Mullus surmuletus (Striped Red Mullet)
• Tripterygion tripteronotum (Red-black Triplefin)
• Chromis chromis (Mediterranean Damselfish)
• Serranus scriba (Painted Comber)
• Diplodus vulgaris (Common Two-banded Seabream)

Echinoderms

• Stylocidaris affinis (Red Lance Urchin)
• Holothuria sp. (Sea Cucumber)

Sponges

• Axinella sp.
• Chondrilla sp.
• Sarcotragus spinosulus (Black Leather Sponge)

Molluscs

• Rapaninae (Rapanine Whelks)

Hydrozoans

• Hydrozoa

​Repeated biodiversity observations at Katigiorgis and elsewhere in South-east Pelion can help build a growing record of species presence across different habitats and seasons and complement the wider marine biodiversity monitoring being carried out in the region.