In separate experiments, 3 day-old (d.o.) planula
larvae of Acropora tenuis, Platygyra sinensis, and
Goniastrea aspera, and 11 d.o. planula larvae of A. tenuis
were exposed to a range of seven dilutions of each of the
three treatments. For each concentration, ten larvae were
placed in each of 5 replicate 21 mL sealed glass vials.
Vials were placed in mesh bags on the reef-flat in about 2
m water depth, to provide the larvae with ambient
temperatures (26.0 - 27.5°C) and multi-directional
agitation throughout the exposure period.