A seasoned Mexican marine biologist experienced a heart-stopping encounter with a Galapagos shark off the coast of Costa Rica in September, highlighting the dedication—and inherent risks—of ocean conservation efforts. Mauricio Hoyos, 48, a veteran shark researcher, was conducting a tagging operation near the remote Cocos Island when the incident occurred.
The Shark Encounter at Cocos Island
Hoyos, leading a scientific team from the One Ocean Worldwide Coalition, was on a mission to track shark migration patterns around Cocos Island, a protected national park and UNESCO World Heritage site located more than 300 miles (500 kilometers) off Costa Rica’s Pacific coast. The team aimed to gather crucial data about shark breeding and feeding grounds to bolster conservation initiatives combating overfishing in this vital marine ecosystem.
On the day of the incident, Hoyos descended to approximately 120 feet (37 meters) to tag a female Galapagos shark measuring over 10 feet (3 meters) in length. He used a pole spear to attach an acoustic tag to the shark’s dorsal fin, a common practice in marine research.
According to Hoyos, moments after tagging the shark, the animal unexpectedly turned and bit him. “My whole head was inside her mouth,” he recounted from his recovery. Despite the immense pressure, the shark released him almost immediately, swimming away without further aggression. This brief encounter left Hoyos with significant injuries, emphasizing the unpredictable nature of working with apex predators in their natural habitat.
The Aftermath and Recovery
The shark bite resulted in 27 puncture wounds corresponding to the shark’s teeth, deep lacerations on his scalp, and damage to his jaw requiring surgical intervention. The water around him quickly clouded with blood, and his scuba gear was damaged, necessitating a rapid ascent. Fellow divers and park rangers stationed on Cocos Island provided immediate first aid, stemming the bleeding and stabilizing him for a grueling 36-hour boat journey back to the mainland.
Upon arrival in Puntarenas, Hoyos was transferred to a hospital in San José, Costa Rica’s capital city, where he underwent two surgeries to repair his injuries. He spent several weeks recovering, first in Costa Rica and then at his home in La Paz, Baja California, Mexico. Hoyos expressed immense gratitude for the rapid and effective response from Costa Rican authorities and medical teams, stating, “They treated me like one of their own.”
A Shark Advocate’s Perspective
Despite the severity of the attack, Hoyos, who has dedicated over 30 years to marine research, views the incident not as an act of aggression but as a defensive reaction from a startled animal. “She spared my life,” he stated, emphasizing that humans are not part of sharks’ natural diet. He reiterated that such incidents remain rare, even for those who work closely with these powerful marine creatures. Hoyos has even experienced similar incidents before, including a previous Galapagos shark bite that resulted in the loss of part of a finger.
Dispelling Misconceptions About Sharks
Hoyos’s fascination with sharks began in his childhood, inspired by films that often portray them as menacing threats. Instead of instilling fear, these stories motivated him to study and protect these vital species. He has received awards for his conservation work from organizations like Fins Attached and Shark Project International. Hoyos emphasizes the importance of dispelling common misconceptions about sharks: “We kill an estimated 100 million sharks annually through fishing, yet they rarely harm us.” This staggering figure, according to the World Wildlife Fund, underscores the critical need for shark conservation efforts worldwide.
Returning to the Ocean
Currently recovering in Mexico, Hoyos is making steady progress. He plans to return to diving as early as mid-November and intends to revisit Cocos Island in January. Remarkably, he hopes to locate the same shark that bit him, thanks to the acoustic tag he deployed just before the incident. “I marked her, so I can track if she’s still there,” he explained. For Hoyos, this encounter is a reminder of the respect owed to marine life, not a cause for fear.
Cocos Island: A Haven for Marine Life
Cocos Island is renowned for its exceptional biodiversity, attracting researchers and divers from around the globe. The island’s waters teem with hammerhead, tiger, and whale sharks, among other marine species. This rich ecosystem faces significant threats from illegal fishing, highlighting the need for robust conservation efforts. Hoyos’s research contributes to these broader efforts, emphasizing the critical balance between human activity and wildlife preservation in this unique and vulnerable environment.
Stories like Hoyos’s serve as a potent reminder of the dedication and risks taken by scientists working to protect vulnerable marine species in Costa Rica and beyond. His unwavering commitment to understanding sharks and promoting coexistence resonates with many in the field. If you’re passionate about marine conservation and interested in exploring the wonders of Costa Rica’s underwater world, learn more about sustainable tourism options and how you can support responsible travel practices.
