From scrolling to science: five ways your phone can help the Reef

Australians spend hours on their phones each week. Increasingly, some of that time is helping track whales, identify wildlife and monitor the Great Barrier Reef, as researchers enlist the public through citizen science platforms. Citizen science — when everyday people collect and share observations for research — gives scientists reach they otherwise lack.

Across a vast reef and remote coastlines, thousands of individual sightings add up to reliable, large‑scale insights that can speed research and sharpen conservation decisions. One entry point is iNaturalist, a global community science platform that helps users identify plants and animals while feeding biodiversity records into research databases.

Those records help scientists map where species, detect how seasons are driving change and see how ecosystems respond over time. On the Reef itself, Eye on the Reef — led by the Great Barrier Reef Marine Park Authority — captures what is happening in near real time.

Through a simple app, visitors can record reef health, wildlife sightings and incidents such as coral bleaching, crown‑of‑thorns starfish or pollution. Observations are GPS‑tagged and shared with scientists and Marine Park managers, providing early warning signs and a clearer picture of reef health to inform future protection.

Project Manta, led by the University of the Sunshine Coast, is working to better understand manta rays, an iconic species listed as vulnerable to extinction. Each manta ray has a unique pattern on its belly, like a fingerprint. By uploading photos and videos, the public helps researchers build a picture of where manta rays travel and how they use marine environments — information crucial to their long‑term protection.

For whales, Happywhale turns photographs of tail flukes into scientific data. The unique markings, shapes and patterns on the underside of a fluke identify individual animals. Using image recognition technology, the platform matches images to track whales over time.

Those matches help reveal migration routes, population trends and the impacts of climate change on whale populations — insights that would be impossible to gather at this scale without public participation. The Great Reef Census is among the most ambitious citizen science efforts on the Reef, designed to rapidly scale understanding of reef health.

A fleet of vessels captures thousands of images, then a global community helps analyse them from their screens by identifying what appears in each frame. That crowd‑powered review helps researchers process vast volumes of data quickly, building a more complete and timely picture of the Reef’s condition.

Taken together, these projects show how small, well‑documented observations — from a smartphone photo to a few minutes spent classifying images — can supply the reliable data scientists and managers need to monitor Australia’s marine life and safeguard the Great Barrier Reef.