An Ark Adrift in Time
Barrow Island, located 50 kilometers off the Pilbara coast, is a biological refuge. Rising sea levels separated it from mainland Australia around 8,000 years ago, creating a refuge for species that have since declined or become extinct on the continent. The 235-square-kilometer island has no introduced predators like foxes or cats, which has allowed its native fauna to thrive. This isolation makes it a Class A Nature Reserve, the highest level of conservation protection for Crown land in Australia.
The island has sanctuary for vulnerable mammals, including the Spectacled Hare-wallaby (Lagorchestes conspicillatus), the Golden Bandicoot (Isoodon auratus), the Burrowing Bettong (Bettongia lesueur), and the Black-flanked Rock-wallaby (Petrogale lateralis lateralis). It also hosts 43 species of terrestrial reptiles, including Australia's largest lizard, the Perentie (Varanus giganteus), which is the island's top predator. The island's biodiversity is extensive, with records of almost 2,800 terrestrial and subterranean species. This includes nearly 400 native plant species, over 119 bird species, and thousands of invertebrate species.
The Industrial Fortress
This pristine environment coexists with one of the world's largest natural gas projects, the Gorgon gas project, operated by Chevron. The operation is governed by the Quarantine Management System (QMS), the largest non-government quarantine initiative globally. The system's objective is absolute: to prevent any non-indigenous species from establishing on the island.
The QMS is a complex set of over 300 procedures that scrutinize every person and piece of equipment. Between 2009 and 2015, over half a million passengers and 12.2 million tonnes of freight were processed, requiring 1.5 million hours of inspections. Every item, from tiny screws to massive industrial modules, is inspected. Personal luggage, food, and even footwear are subject to strict controls. All materials are cleaned, and some items are shrink-wrapped or frozen to kill potential hitchhikers like seeds, insects, or fungal spores. The protocol extends to the marine environment, with vessel hulls inspected to prevent the introduction of invasive marine pests. To date, surveillance has not detected the establishment of a single new non-indigenous species during the project's construction.