A new method stains coral larvae red and blue to track them as they disperse and settle on coral reefs

The low-cost, rapid staining method will allow scientists to determine the efficacy of reef restoration techniques.

Blue and red stained coral larvae
Representative images of free-swimming and newly metamorphosed larvae (Nile blue, unstained, neutral red) from Acropora anthocercis, Platygyra sinensis, Coelastrea aspera, and mixed Nile blue and neutral red stained Dipsastraea favus larvae. White scale bars = 1 mm. Credit: Doropoulos C and Roff G, 2022, PLOS Biology, CC-BY 4.0 (https://creativecommons.org/licenses/by/4.0/)