A hidden reef exists behind the Great Barrier Reef—but it’s three times bigger than previously thought, constructed by algae, and made up of doughnut-shaped mounds.
Uncovering the true scale of the 6,000 km2 structure was made possible by airborne laser mapping technology LiDAR, provided by the Royal Australian Navy.
It has implications for the Great Barrier Reef’s habitat mapping and conservation zoning, as well as providing possible insights into past climates.
Seagrass meadows provide food and habitat for everything from dugongs and birds to fish and tiny crabs.
Using maths to protect seagrass meadows and the communities they support .
Globally we’re losing over 100 sq. km per year due to dredging, coastal developments and runoff. That’s bad news for the animals they support, and bad news for us too, as seagrass supports healthy coastal fisheries as well as acting as a carbon store.
To see how seagrass can be given a fighting chance, Dr Paul Wu at the ARC Centre of Excellence for Mathematical and Statistical Frontiers and collaborators have put an extended modelling technique to new use, predicting seagrass health and suggests how some modified human activities could reduce the damage.
