In a remarkable effort to revive the endangered white abalone, a dedicated team at the Bodega Marine Laboratory in California is making strides in breeding and restoring this once-abundant species. Following decades of decline due to overfishing and habitat degradation, the lab has become a beacon of hope, successfully increasing the population of these unique marine snails.
Spawning Day at the Bodega Marine Laboratory
On a bright January afternoon, the atmosphere at the White Abalone Culture Lab is electric with anticipation. Situated around 70 miles north of San Francisco, the laboratory is abuzz with activity as biologists and volunteers prepare for spawning day. Program director Alyssa Frederick guides visitors through the facility, where the rhythmic bubbling of seawater fills the air.
Inside, abalone ranging from newborns to nearly 25-year-olds are meticulously measured and examined. The goal is clear: to stimulate reproduction among the 110 white abalone housed in the lab. Using a concoction of hydrogen peroxide dubbed the “love potion,” researchers encourage the females to release eggs while the males discharge sperm. The hope is to create millions of larvae that can eventually be returned to their natural habitats along the southern California coast.
The stakes are high; in 2001, only 1% of the original white abalone population, approximately 2,000 individuals, remained. Now, thanks to the dedicated efforts at the Bodega lab, over 20,000 white abalone have been released into the ocean since its opening in 2011—a tenfold increase.
Funding Challenges and Uncertainty
Today’s spawning activity is particularly significant, as it nearly faced cancellation due to proposed budget cuts. Last April, former President Donald Trump suggested a staggering $1.7 billion reduction to the National Oceanic and Atmospheric Administration (NOAA), jeopardizing crucial funding for the lab and its personnel. The potential loss of financial support loomed over the programme, threatening to stall the momentum built over the years.
Fortunately, anonymous donations provided a temporary lifeline, and federal funding was ultimately secured for 2026, ensuring the lab’s operations can continue for at least another two years. Frederick, however, remains wary of relying solely on federal assistance. “If you want to save a species, you can no longer rely fully on federal funding,” she asserts, highlighting the unpredictable nature of political decisions surrounding conservation.
The Plight of the White Abalone
Once a staple along California’s coastline, the white abalone has experienced a dramatic decline. Overfishing, particularly in the late 20th century, devastated their numbers, with illegal harvesting decimating populations. By the early 1990s, surveys revealed only three living specimens in historic habitats where thousands once thrived.
Their reproductive process involves “broadcast spawning,” where males and females release gametes into the water. However, since the remaining individuals are now sparse, successful spawning in the wild is nearly impossible. The establishment of the White Abalone Programme in 2001 marked a turning point, as wild specimens were brought into captivity to facilitate controlled breeding.
Yet, threats to their survival persist. Kelp forests, essential to their diet, have suffered catastrophic losses, with 95% disappearing along the northern Californian coast due to climate change and an explosion of purple sea urchin populations. With the sunflower sea star, a key predator of sea urchins, declining due to disease, the delicate balance of the ecosystem is at risk, further endangering the white abalone.
Hope for the Future
Despite the challenges, Frederick and her team remain optimistic. The lab has recorded spawning events yielding over 12 million fertilised eggs in a single session, a testament to the resilience of the species. While not all larvae will survive, this success indicates a promising path toward restoring the white abalone’s population.
Frederick’s passion for her work is palpable. “It’s just so hopeful,” she reflects. “So many people studying the ocean or endangered species have a really hard job. They have to watch the ocean degrade or they’re watching a species go extinct. In this situation, we get to actually restore the white abalone. It’s kind of amazing. That never happens.”
Why it Matters
The revival of the white abalone is not just about saving a single species; it represents a broader effort to restore the health of marine ecosystems and combat the effects of human activity on vulnerable wildlife. The success of the Bodega Marine Laboratory’s breeding programme highlights the potential for scientific innovation and community involvement to turn the tide in conservation efforts. As climate change and habitat degradation continue to threaten marine life, initiatives like this serve as a critical reminder of the importance of protecting our oceans for future generations.
