International All-Female Research Crew Set Sail to Combat Pacific Plastic Crisis

Māori scientist Rāwinia Wikaira joins eXXpedition’s all-women crew on a global voyage to trace microplastics from sea to source across the South Pacific.

By: AXL Media

Published: Apr 30, 2026, 6:36 AM EDT

Source: RNZ Pacific

Mapping the Exponential Rise of Marine Microplastics

The scale of the mission is driven by alarming new data regarding ocean health. In 2014, scientists estimated that approximately five trillion plastic pieces were floating in the world's oceans. By 2023, that figure had skyrocketed to an estimated 171 trillion pieces, the vast majority of which are microplastics fragments smaller than 5mm that are nearly impossible to remove through traditional cleanup methods.

Dr. Taylor Maddalene, the crew’s science lead from the University of Georgia, emphasized that the crisis has reached a critical tipping point. She noted that the equivalent of a garbage truck’s worth of plastic enters the ocean every minute. The eXXpedition crew aims to move beyond simple cleanup by using forensic tools to identify exactly what types of polymers are present in the water, which allows them to pinpoint the specific industries or regions responsible for the leakage.

Indigenous Perspectives on Ecological Degradation

For Rāwinia Wikaira (Ngāti Wai, Ngāi Takoto, Ngāpuhi), the mission is deeply personal. As a graduate in Māori Studies and Ecology, Wikaira is sailing through her ancestral waters, where she has witnessed the direct impact of pollution on traditional food sources. She noted that shellfish, which are filter feeders, are increasingly ingesting microplastics, which then enter the human bloodstream when consumed.

TRANSFORMATIVE ANALYSIS: The inclusion of indigenous researchers like Wikaira represents a shift in environmental science toward "holistic monitoring." By combining Māori ecological knowledge (mātauranga Māori) with Western forensic chemistry, the expedition acknowledges that ocean health is not just a statistical concern but a direct threat to cultural heritage and food sovereignty. This approach highlights how global pollution trends manifest as localized "slow violence" against communities that rely on the sea for sustenance and spiritual connection.