Uncovering the Truth: Misconceptions in Marine Biodiversity Conservation

Thailand’s oceans are among the most diverse in the world, yet much of their story remains untold. While coral reefs often steal the spotlight, the true picture of marine biodiversity is far more complex—and far less understood. Dr. Rahul Mehrotra, alumnus of Chulalongkorn University and Research Director at the Aow Thai Marine Ecology Center (ATMEC), is rewriting what we thought we knew about Thailand’s oceans.

For years, both the public and many practitioners assumed that coral reefs represented the entirety of marine biodiversity. Dr. Mehrotra points out that marine biology is decades behind terrestrial studies, and much remains undiscovered. “There are a whole range of incredibly strange and poorly understood species that can be found away from the coral reef,” he explains, highlighting habitats that get little attention despite their ecological importance.

Assuming that a technique proven effective for decades will still work today, or that a method successful in one location will perform equally well elsewhere, is an overly simplistic view. Traditional coral conservation methods, relying heavily on decades-old asexual propagation techniques, have also limited the resilience of reefs. Dr. Mehrotra’s work at Koh Samaesarn, in collaboration with Prof. Dr. Suchana Chavanich, has pioneered coral restoration using sexual reproduction, ensuring genetic diversity—a crucial factor for the long-term survival and adaptability of reefs.

A sustainable approach to conservation requires better representation of scientists in decision-making and improved communication with the public. “Science is constantly changing, and management needs to keep pace with that,” Dr. Mehrotra notes. By promoting collaboration among conservation managers, researchers, and the wider public, marine policies can become more informed, adaptive, and effective. His guiding principle is clear: “We don’t interact with the marine environment until we have a complete understanding.”

At the same time, he emphasizes the importance of nurturing the next generation of marine scientists—those who embrace curiosity, learn from both successes and failures, and understand complex ecological systems. By combining informed policy with a new wave of passionate researchers, Dr. Mehrotra aims to safeguard Thailand’s marine biodiversity for the future.

Dr. Mehrotra credits much of his early motivation to Chad Scott, whose pioneering work in complex marine conservation showed him what was possible. At Chulalongkorn University, the mentorship of Prof. Dr. Suchana Chavanich further shaped his path, giving him the freedom to ask bold questions and pursue research on understudied marine species.

Today, as Research Director at ATMEC, he furthers the work laid by this foundation —combining research, conservation, and education to engage both scientists and the wider public. His projects have rediscovered species once thought extinct and revealed the urgent impacts of marine pollution, underscoring the importance of genetic and ecological diversity not just for marine life, but for future generations of conservationists.