Short Presentation Australian Marine Sciences Association 2026 Conference

From reefs to real-world impact: 11 years of coral reef research and ocean catchment science on Christmas Island (139574)

Jennie Mallela 1 , Daniel Martinez-Escobar 1
  1. Australian National University, Canberra, ACT, Australia

Long-term datasets are critical for translating marine science into management action. However, real impact requires integration with catchment processes, community engagement, and policy development. This 11-year dataset (2015–2025) from Christmas Island, one of Australia’s most unique reef systems, spans two global bleaching events and major cyclone impacts. Ecological research is combined with trials of novel reef restoration techniques and targeted outreach to maximise impact across Parks management, science, policy, and community stakeholders. Coral reef assessments of reef condition, disturbance responses (e.g. 2016 bleaching, 2024 cyclone impacts), and recovery trajectories, are also directly informing Parks Australia management.

Research demonstrates strong land–sea connectivity, for example, phosphate mining runoff created localised pollution hotspots, with elevated phosphorus (up to 54,000 mg kg⁻¹ in reef sediments) impacting reef health along environmental gradients. These findings highlight the importance of ongoing monitoring, restoration trials, and management responses targeting catchment-derived stressors.

Critically, this program demonstrates the value of independent, evidence-based science, delivered in partnership with natural resource managers and active engagement with policy processes, to ensure marine ecosystems are appropriately represented in environmental decision-making (e.g. EPBC assessments). This work contributes to the MORDOR “ocean catchments” initiative and informs coordinated, policy-relevant land–sea conservation (e.g. BBNJ treaty).