"Crucial battle for Coastal Conservation", Good Tiwi News article, Nov 2023
In a significant stride towards preserving the pristine beauty of the Tiwi Islands, the Tiwi Land Council recently embarked on a groundbreaking mission - a Ghost net mapping survey. This ambitious initiative aimed to identify and document the pervasive issue of ghost nets along the coastlines of the two islands.
Working in tandem with local Tiwi Rangers, whose invaluable knowledge of the land and coastline proved instrumental to the project and the Tiwi Enterprises, who recently purchase Sea Darwin / Sea Tiwi, were engaged to provide and crew the vessel Olive Ridley, a 12m solid hull rib with 2 x 452hp Yahama outboards. This vessel is fast, has a shallow draw and has steps for beach landings. Tiwi Land Council staff provided ground support.
The Tiwi Lands Council collaborated with Rise Project Consulting (Rise), a Darwin based consultancy firm specialising in environmental projects. Rise deployed a dedicated team of three experts, armed with state-of-the-art technology including airborne drones, Digital Single-Lens Reflect (DLSR) cameras, and a submersible Remotely Operated Vehicle (ROV). This arsenal of tool enabled the team to capture visual data both above and below the water's surface, providing a comprehensive overview of the extent of the ghost net issue. This approach not only highlighted the severity of the issue but also uncovered previously undiscovered nets and associated debris, underscoring the urgency of addressing this environmental threat.
Armed with this comprehensive dataset, the Tiwi Land Council plans to work with the Tiwi Islands Rangers to develop informed strategies for the removal and disposal of ghost nets. The visual documentation provides a roadmap for targeted interventions, allowing the rangers to prioritise areas most affected by this environmental menace. Additionally, the data serves as a foundation for ongoing monitoring efforts, enabling the rangers to track changes in the prevalence of ghost nets over time and assess the effectiveness of conservation initiatives.