Fact sheet

File type: PDF

Carter A, Forsman S, Barrett D, Barrett E, Kerr R, Wilkins S, Tracey D, Collier C, and Groom R (2026). Habitat Monitoring in Marra Sea Country. Fact sheet. James Cook University TropWATER, Townsville, Queensland.

2026

Overview

A long-term monitoring program in Marra Sea Country has revealed a dramatic 99% decline in seagrass biomass between 2023 and 2025, likely driven by Cyclone Megan, prolonged marine heat stress and extreme wind conditions. The report highlights the ecological and cultural significance of these habitats, while identifying early signs of recovery through pioneering seagrass species and the importance of continued monitoring.

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