Multiple reports from the University of Hawaiʻi cover a new study published in Nature Communications finding that human activities are significantly degrading coral reef health in Maui waters. Researchers identified contamination from agricultural, industrial, and pharmaceutical sources accumulating in coral tissues, reducing the reefs’ ability to withstand environmental stress. The findings have implications for Maui’s marine environment, which is a key draw for visitors and vacation rental guests.
- A UH Mānoa-led international research team tested 380 corals across 16 sites off west and south Maui.
- 25 contaminants from agricultural, industrial, and pharmaceutical sources were found accumulated in coral soft tissues.
- In human-impacted areas, coral tissues showed decreased energy and nutrient reserves, making reefs less resilient to warmer or more acidic waters.
- Both lobe corals (Porites lobata) and rice corals (Montipora capitata) showed nearly identical contamination trends despite very different life strategies.
- Researchers suggest monitoring coral ‘metabolomes’ — the pool of chemicals in coral tissue — as a tool for tracking hidden human impacts on marine life.
- Sites with the most severe coral cover loss after the 2016 bleaching event corresponded to sites with the highest levels of disturbance in the study.
Sources
- University of Hawaii News: Human activities compromise coral health, resilience in Maui waters
- University of Hawaii News: Human activities compromise coral health, resilience in Maui waters
Share this article
