Rottnest Island Shark Attack: Spearfisher Steven Mattaboni’s Death Highlights Rising Risks in Western Australia

Perth, Australia — May 18, 2026 — The tragic death of 38-year-old spearfisher Steven Mattaboni off Rottnest Island has reignited urgent discussions about shark safety, spearfishing risks, and the evolving dynamics of marine encounters in Western Australia. Mattaboni, a devoted father of two, was fatally bitten by a great white shark while participating in a small-scale spearfishing competition near Horseshoe Reef, about a kilometer from shore. His death marks the second fatal shark attack recorded near the island in recent years and underscores growing concerns among marine researchers and safety advocates.

— ### Who Was Steven Mattaboni? Steven Mattaboni, affectionately known as “Mattas” among friends, was a father of two—his youngest daughter was born just four months before his death. His wife, Shereen, described him as “fiercely loyal and endlessly generous,” painting a picture of a man deeply connected to his community and the ocean he loved. Tributes have poured in from friends, family, and fellow spearfishing enthusiasts, highlighting his passion for the sport and his role as a mentor to others in the community.

“Our hearts are irrevocably broken by the loss of Steven.” — Shereen Mattaboni, in a statement shared with media.

Mattaboni’s death has prompted an outpouring of grief, with many questioning whether changing ocean conditions—including warmer waters and shifting shark behavior—are contributing to an increase in dangerous encounters. — ### The Attack: What Happened on Rottnest Island? According to emergency services and eyewitness accounts, Mattaboni was diving at Horseshoe Reef when he was bitten by a great white shark estimated at around four meters in length. The attack occurred during a spearfishing trip with friends, approximately 20 meters from their boat. Witnesses described the injuries as “horrific,” with Mattaboni receiving immediate CPR on the scene before being rushed to Geordie Bay jetty, where emergency responders attempted life-saving measures. Despite their efforts, he succumbed to his injuries.

Key details of the incident:

• Location: Horseshoe Reef, northwest of Rottnest Island (~1 km offshore).
• Time: Approximately 10:00 AM on Saturday, May 17, 2026.
• Shark species: Great white shark (estimated 4 meters).
• Activity: Spearfishing competition among friends.
• Response: Immediate CPR administered by friends; emergency services arrived within minutes.

A five-meter great white shark had been previously recorded in the area around the time of the attack, raising questions about whether the presence of large predators in the region is becoming more common. — ### Why Are Spearfishing Incidents Rising? Researchers and marine biologists have long warned that spearfishing carries a higher risk of shark encounters than recreational swimming or snorkeling. Several factors contribute to this increased danger: #### 1. Advances in Wetsuit Technology Modern wetsuits allow spearfishermen to stay in the water for longer periods and venture further offshore, exposing them to deeper, shark-prone areas. Unlike traditional swimmers, spearfishermen often dive to greater depths and may encounter sharks while pursuing prey. #### 2. Growth of Spearfishing as a Sport Participation in spearfishing has surged in recent decades, particularly in regions like Western Australia. With more people entering the water equipped with spears and breath-holding gear, the likelihood of accidental encounters with sharks has risen. Data from the Western Australian Department of Biodiversity, Conservation and Attractions (DBCA) indicates a notable increase in shark bite incidents involving spearfishermen since the 2000s. #### 3. Changing Ocean Conditions Climate change and shifting ocean temperatures may be altering shark behavior and migration patterns. Warmer waters can expand the range of species like great whites, bringing them into closer contact with human activity. Changes in fish populations—such as the decline of traditional prey—may drive sharks to hunt in areas frequented by humans.

“The science on shark prevention has never been stronger, but the changing conditions mean we must adapt our approaches.” — Marine researcher, as cited in recent safety advisories.

— ### Rottnest Island’s Shark History: A Growing Concern Rottnest Island, a popular tourist destination off the coast of Perth, has long been associated with shark sightings. However, the recent fatality has intensified scrutiny over safety measures in the area. Here’s what we know: – Second Fatal Attack in Recent Years: Mattaboni’s death is only the second recorded fatal shark bite near Rottnest Island in the past decade, following a similar incident in 2022. – High-Traffic Reefs: Horseshoe Reef, where the attack occurred, is a well-known spot for snorkeling, fishing, and spearfishing. Its proximity to deep water and abundance of pelagic fish make it a magnet for both recreational divers and marine predators. – Shark Sightings on the Rise: Reports of great white sharks in the region have increased in recent months, with conservation groups attributing this to a combination of natural migration patterns and human activity.

“This tragedy is a stark reminder that the ocean is not always a safe place, even for those who know it well.” — Michael Wear, Rottnest Island officer-in-charge.

— ### What Are the Safety Recommendations? In the wake of Mattaboni’s death, marine experts and government agencies are reinforcing safety protocols for spearfishermen and divers. Key recommendations include: #### For Spearfishermen: – Avoid Diving Alone: Always fish with a buddy system and maintain visual contact with the surface. – Use Shark Deterrents: Deploying shark deterrent devices (SDDs) or wearing wetsuits with built-in deterrents may reduce the risk of an attack. – Limit Time in High-Risk Areas: Stay aware of local shark activity reports and avoid diving in areas known for frequent shark sightings. – Carry Emergency Gear: Ensure you have a whistle, floatation device, and first-aid supplies on hand. #### For Authorities: – Expand Shark Monitoring: Increase aerial and drone surveillance to track shark movements in real time. – Public Awareness Campaigns: Educate the public on shark behavior, risk factors, and safety measures. – Review Spearfishing Regulations: Consider stricter guidelines on where and when spearfishing is permitted, particularly in high-risk zones. The Western Australian Department of Fisheries has urged the community to stay informed and vigilant, emphasizing that while shark attacks remain rare, the risks are not zero. — ### Community Response: Grief and Calls for Action Mattaboni’s death has sparked a wave of grief and reflection within the spearfishing and broader Perth communities. Social media has been flooded with tributes, with many calling for better safety measures and a more open conversation about the realities of shark encounters.

“Steven’s loss is a tragedy, but it’s also a wake-up call. We need to take this seriously and ensure no one else faces the same fate.” — Local spearfishing forum member.

Funeral arrangements for Mattaboni are pending, with his family requesting privacy during this difficult time. In the meantime, his wife and daughters are receiving an outpouring of support from friends, colleagues, and strangers alike. — ### Looking Ahead: Can We Reduce the Risks? While the loss of Steven Mattaboni is devastating, it has also sparked meaningful discussions about how to balance human activity with marine conservation. Experts agree that a combination of technology, education, and adaptive policies can help mitigate risks: – Improved Tracking: Advances in shark tracking technology, such as satellite tags and AI-driven monitoring, could provide earlier warnings of predator presence. – Community Collaboration: Engaging with Indigenous knowledge and local fishermen can offer insights into historical shark behavior patterns. – Policy Reforms: Governments may need to revisit regulations around spearfishing, particularly in areas with high shark activity.

“This is not just about fear—it’s about respect. The ocean is a powerful force, and we must learn to navigate it safely.” — Marine conservationist.

— ### Key Takeaways 1. Spearfishing Risks: The activity carries a higher likelihood of shark encounters due to deeper diving and longer exposure in the water. 2. Changing Conditions: Warmer waters and shifting shark behavior may be increasing the frequency of dangerous encounters. 3. Safety Measures: Using deterrents, diving with a buddy, and staying informed about local shark activity can reduce risks. 4. Community Impact: Mattaboni’s death has united the spearfishing community in calls for better safety protocols and public awareness. 5. Ongoing Research: Scientists emphasize the need for continued study into shark behavior and human-wildlife interactions. —

FAQ: What You Need to Know About Shark Safety in Western Australia

Q: How common are shark attacks in Australia?

A: Shark attacks are rare but do occur. Australia averages around six unprovoked shark attacks per year, with fatalities being even rarer. Western Australia has seen an uptick in incidents in recent years, particularly involving spearfishermen.

Q: Are great white sharks the only danger?

A: While great whites are often in the news, other species like bull sharks and tiger sharks can also pose risks. The type of shark involved depends on the location and time of year.

Q: What should I do if I see a shark while diving?

A: Stay calm, avoid sudden movements, and slowly exit the water if possible. Do not punch or provoke the shark. If you’re with a group, maintain cohesion and signal for help.

Q: Are there shark deterrent devices that work?

A: Shark Deterrent Devices (SDDs) like the Shark Shield have shown some effectiveness in reducing the likelihood of an attack, though they are not 100% foolproof. Always use them as part of a broader safety strategy.

Q: How can I stay updated on shark sightings?

A: Follow local marine authorities, such as the WA DBCA or SharkSmart, which provide real-time alerts and advisories.

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Final Thoughts

Steven Mattaboni’s tragic death serves as a sobering reminder of the unpredictable nature of the ocean. While the risks of shark encounters are real, they are not insurmountable. By combining technology, education, and respect for marine life, we can continue to enjoy Australia’s stunning coastal environments while minimizing dangers. As the community mourns, it also stands united in the hope that his loss will lead to safer practices for all who venture into the water.