Divers may think they protect reefs, but one unseen habit is taking a steady toll
Phys.org • • science
Key Points:
- Research from the University of Sydney reveals that scuba-diving tourism causes frequent, often unnoticed damage to coral reefs, with 41% of recorded reef contacts by divers resulting in observable harm.
- The study found that most damage is unintentional, with over 80% of harmful contacts going unnoticed by divers, despite many reporting strong pro-environmental attitudes.
- Psychological biases like overconfidence and the Dunning-Kruger effect lead divers to underestimate their impact, with many believing they avoid reef contact more effectively than they actually do.
- Wildlife encounters significantly increase reef damage, and a small minority of divers are responsible for a disproportionate amount of harm, suggesting targeted interventions could be effective.
- The researchers recommend improved diver training, stricter equipment controls, enhanced environmental briefings, and higher industry standards to mitigate tourism-related reef damage and support reef conservation.