Fieldwork at the beach of Preveza
The last ARCHELON mission for 2020 was completed a couple of days ago at the beach of Preveza, in western Greece. More than 15 loggerhead nests have been recorded there, from Kastrosykia to Mytikas, during the last 4 summers.

Unlike other organisms that have their sex determined genetically, the sex of the loggerhead hatchlings is determined by temperature. This phenomenon is observed in most species of turtles, crocodiles, many fish species and lizards.
The ratio of male/female hatchlings depends on the range of temperatures inside each nest and it is different in each nesting area of Greece. Lower temperatures in the nest favor male hatchlings while higher temperatures favor female ones. Determining this ratio is vital for any population analysis, especially so for the future survival of this species in the face of climate crisis.

Next comes the analysis of data, which will be done in the upcoming months. Until then, stay safe!
Big loss after 28 years of active reproduction
The Green Fund co-financed the Zakynthos project for the first time
RECENT NEWS
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The Municipality of Saronikos and ARCHELON are campaigning for the safe and proper coexistence of bathers and wildlife.
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Greek fishermen release rare Leatherback Turtle in the North Aegean!
In mid-July, we received a video of an impressive sea turtle that had been caught in the nets of a fishing boat.
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Join our Sea Turtle Nest Excavations in Peloponnese and Crete
ARCHELON invites you to a unique experience of environmental education and scientific observation!
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- OUR NEWS15/07/2026
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- OUR NEWS10/07/2026
Raising awareness for the sea turtles in Corfu
To mark the launch of the project, ARCHELON carried out a series of outreach activities across Corfu, bringing local communities and visitors closer to sea turtle conservation.
- OUR NEWS08/07/2026
Protecting loggerhead sea turtles contributes to maintaining the balance of marine ecosystems.
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- OUR NEWS05/07/2026
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Two cases of environmental law violations in Zakynthos that went unpunished.
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New Sea Turtle Protection Project in Corfu
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- OUR NEWS24/06/2026
Effective turtle conservation begins with safeguarding the nesting beaches
Field surveys were carried out over two consecutive nesting seasons (2024–2025), assessing 167 nesting beaches across Greece, covering 270 km of coastline.
- OUR NEWS22/06/2026
ARCHELON expresses its sorrow at the loss of Mona Khalil
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The world of marine megafauna: New Photo Exhibition at Agiannakis Environmental Station
The Exhibition is part of the LIFE MareNatura Project and is open to the public every Saturday 18:00 - 21:00.
- OUR NEWS16/06/2026
New data reveals that sea turtles follow much more complex migration strategies
World Sea Turtle Day is an opportunity to celebrate our achievements, but also to remember why we continue to research and protect these ancient ocean travellers.

