On the Bahamian Island of Eleuthera, a New Mobile Lab Is Reviving the Queen Conch

The mobile lab. A first hatch inside a self-contained, solar-powered hatchery has opened a hopeful new chapter for one of the Caribbean’s most iconic marine species.

A new era in marine conservation has officially begun on the island of Eleuthera, where a self-contained hatchery on wheels has started growing the next generation of queen conch. Florida Atlantic University’s Harbor Branch Oceanographic Institute, working in partnership with The Island School’s Cape Eleuthera Institute and supported by Chef José Andrés’ Longer Tables Fund, has announced that the Queen Conch Mobile Lab is now fully operational.

The announcement follows the arrival of the first queen conch egg masses and the very first hatch inside the new system. It marks a defining moment for the Cape Eleuthera Queen Conch Conservancy, a community-based initiative built to help restore one of the region’s most culturally and ecologically significant species.

Established in February, the mobile lab is engineered to grow up to 2,000 juvenile queen conch annually for conservation and restoration efforts across the wider Caribbean. The scale of that ambition is matched by the delicacy of the work happening inside.

In April, researchers at the Cape Eleuthera Institute introduced the first egg masses into the mobile lab and witnessed the first successful hatch — a fragile and critical early stage in the queen conch life cycle. Since the lab’s arrival, teams from FAU Harbor Branch and the institute have worked side by side to test and refine its systems, ensuring it can consistently support egg hatching, larval development, juvenile rearing and restoration.

Approximately 200 newly metamorphosed conch have now been produced from that first egg mass. According to the institute, more than 100 additional individuals — and still counting — from the same cohort and from a recent second egg mass have successfully completed metamorphosis, a key developmental milestone.

That transformation reflects the move from the free-swimming veliger stage to the benthic crawling juvenile stage. After the eggs hatched, the larvae completed their 21-day developmental cycle, reached competency and initiated metamorphosis in response to seagrass detrital cues.

The juveniles are now progressing toward the next phase of growth and will require roughly one year before they are ready for release into the wild. It is a slow, patient process, and that patience is precisely the point.

“We are incredibly excited to reach these milestones because it represents far more than the successful launch of a mobile hatchery,” said Megan Davis, Ph.D., director of FAU Harbor Branch’s Queen Conch Lab and a research professor of aquaculture and stock enhancement. “It demonstrates what is possible when science, conservation and community come together with a shared purpose.”

Davis added that the first egg masses and hatch mean the team is now actively growing the next generation of queen conch for restoration, for healthy seagrass ecosystems and for communities across The Bahamas. She called it a transformative and hopeful moment for conservation.

The mobile lab itself is a marvel of practical engineering, a fully self-contained hatchery that brings aquaculture and restoration capabilities directly to coastal communities. Measuring approximately 26 feet by 8 feet, the unit is powered by solar energy and outfitted with specialized saltwater and aeration systems to support sensitive larvae and algae cultivation.

Once deployed, the lab connects to a local seawater source and becomes a fully operational field hatchery. That design enables conservation work in places that lack permanent aquaculture infrastructure, which describes much of the Caribbean coastline.

Native to Florida and the Caribbean, the queen conch is far more than an iconic shell. The large marine snail plays a vital role in maintaining healthy seagrass beds by grazing on algae, helping preserve the ecosystems that support fisheries and marine biodiversity.

Yet despite its importance, queen conch populations have suffered steep declines from overfishing and habitat degradation. Between 1980 and 2020, roughly 31,000 tons of queen conch were harvested annually across the Caribbean, representing nearly $39 million per year in fisheries value.

Today the species is listed as “threatened” under the Endangered Species Act, and surveys indicate that commercial fishing in The Bahamas could become unsustainable within the next 10 to 15 years without intervention. The mobile lab is a direct answer to that warning.

The biology of the queen conch underscores both its wonder and its fragility. During the breeding season, from April through September, a single conch can produce up to 10 egg masses, each holding as many as 500,000 eggs.

At approximately 9 p.m., those eggs hatch into microscopic larvae known as veligers, which drift on ocean currents and feed on tiny algae. Over a 21-day cycle, the veligers develop from two lobes to four and eventually six before metamorphosing into crawling snails that bury themselves in the seagrass.

“Fewer than 1 percent survive to adulthood in the wild,” said Davis. “Queen conch reach adulthood at approximately 4 to 5 years of age, when the lip of their shell thickens to about 9 to 15 millimeters, and they can live up to 40 years, carrying the same shell throughout their entire lives.”

Inside the mobile lab, newly metamorphosed conch will be raised during the breeding season before moving to grow-out tanks. There they feed on natural diatoms and a specially formulated seaweed-based gel diet, growing under carefully controlled conditions.

Once they reach about 7 to 9 centimeters, the juveniles will be acclimated in protected pens before release into surrounding seagrass habitats alongside local community members. That final step — the handoff from lab to ocean — is shared with the people of Eleuthera.