Australian scientists propose new reef biodiversity accounting framework

Six metrics define healthy reefs

Scientists developed a collection of ideal biodiversity measures designed specifically for coral reef environments. These researchers propose six specific measures that describe the structure and function of reef systems effectively. This suggested inventory covers hard coral coverage, functional variety, structural intricacy, algal makeup, fish mass, and fish feeding variety. Existing credits often rely on input activities like planting coral without guaranteeing meaningful ecosystem benefits.

Framework aims to unlock investment

Professor Pratchett stated that using rigorous biodiversity credits will help drive private investment needed for the Great Barrier Reef. Dr Ken Anthony, director of Nature Assets, noted these metrics provide insight into meaningful ecosystem benefits after management interventions. The Great Barrier Reef Foundation partnered strategically on this research to explore high-integrity biodiversity credits for their reefs. Conservation finance lead Kristina Koenig said the work helps develop credible ways to measure improvements in reef health.

Addressing funding shortfall concerns

Pratchett explained there is a massive shortfall in conservation funding alongside clear demand for biodiversity credits. He argued that low-integrity carbon credits previously fostered skepticism about the effectiveness of such credit schemes globally. The new framework lays foundations to ensure high-integrity biodiversity credits are issued without guaranteeing reduced emissions failures. This approach allows nature-positive investment by a range of organizations seeking environmental restoration improvements.