Tiny Floating Purple Sea Snails: What Research in Greece Teaches Us About Supporting Aquatic Science
Two remarkable researchers, Maria Aroni and Yakinthi Kontou, who work with wildlife conservation in the southern Peloponnese, demonstrate what can be accomplished through curiosity, persistence, scientific collaboration with their co-authors, and a commitment to protecting aquatic life.
Extraordinary Discoveries Along the Greek Coast
Their scientific paper, published in September 2026 in the journal Biologia, documents recurring mass strandings of two species of violet sea snails, Janthina janthina and Janthina globosa, along the Maleas Peninsula in southern Greece.
The researchers documented more than 34 stranding events between 2016 and 2026, involving approximately 3,500 violet sea snails. Their findings represent the first scientific documentation of recurring mass strandings of these species in Greece.
Violet sea snails are extraordinary animals. Unlike familiar marine snails that crawl across rocks or the seafloor, these mollusks spend their lives floating at the ocean’s surface.
They accomplish this by constructing rafts of mucus-coated air bubbles that support them beneath the water’s surface. Suspended from these delicate rafts, the snails drift with ocean currents and winds, feeding on other floating marine organisms.
The Greek researchers investigated their reproductive development, feeding behavior, and interactions with other members of the ocean’s surface community. Their observations included the development of embryos and larvae, adding valuable information to our understanding of these unusual animals.
A Fascinating Connection to California
One particularly interesting aspect of this research is its connection to an organism familiar to many Californians: the by-the-wind sailor, Velella velella.

The Greek researchers documented Velella velella and another floating hydrozoan, Porpita porpita, in association with violet sea snails. These organisms belong to a remarkable ecological community known as the neuston, consisting of organisms living at or near the ocean’s surface.
Violet sea snails are predators of floating hydrozoans, including Velella, and have also been documented along the California coast, most recently during unusual strandings in Southern California in July 2025.
This creates a fascinating connection between marine ecosystems in the Mediterranean Sea and those along the California coast.
Although separated by thousands of miles, these environments support the same organisms.
Behind Every Scientific Discovery Is an Investment in Research
Such work requires time, specialized knowledge, and access to appropriate scientific resources.
Microscopes allow researchers to examine tiny structures, stomach contents and developmental stages invisible to the naked eye. Digital imaging equipment makes it possible to document these observations and share findings with other scientists.
Properly designed aquatic animal-care systems, like we are planning for Fresno Aquarium’s Aquaculture Building, allow living organisms to be maintained under controlled conditions for observation and study.
Interestingly, the authors of the Greek study reported receiving no specific research grants from public, commercial, or nonprofit funding agencies.
Despite this, in July of this year the Tulipa Goulimi Association, the community-backed nonprofit organization supporting the research, achieved an important milestone when Greece's Ministry of Environment and Energy officially approved the operation of its Wildlife First Aid Station in Neapoli Voion, Laconia.
This government authorization finally recognizes the 2009 facility within Greece's regulatory framework for wildlife care and rehabilitation, providing an important foundation for the association's continuing work of rescuing injured wildlife throughout the southern Peloponnese, habitat protection, environmental education, and preservation of the region's natural and cultural heritage. Its work is volunteer-based.
The importance of Dedicated Donors
Scientific buildings and infrastructure don’t appear simply because researchers and educators recognize their importance.
They become possible when individuals, families, businesses, and foundations decide that scientific discovery, education, and conservation deserve their support.
And a donor who supports these resources helps make possible discoveries yet to be imagined.
That’s an investment worth making.
Scientific reference
Kontou, Y., Meimeti, S., Kapakos, Y., Aroni, M., Psarrakis, G., and Karaouzas, I. (2026). First records of mass strandings of Janthina species (Gastropoda: Epitoniidae) in Greece and new observations on the early life history and feeding ecology of pelagic violet snails. Biologia, 81, Article 271.