How seaweed has been misleading scientists about reef health

For decades, scientists have used the amount of seaweed at the ocean's surface as a proxy for the health of coral reefs below. However, a new global study of more than 1,200 marine locations over a 16-year period reveals that this approach has been misleading -- and may even have hidden signs of reef stress.

from Latest Science News -- ScienceDaily https://ift.tt/wQ4LdsV