Percentage of total number of megalopae metamorphosed over time (h) in the field-based experiments: (a) H. sexdentatus; (b) Cyclograpsus lavauxi; (c) Cymo andreossyi; (d) S. aspera and (e) G. tenuicrustatus. Key for (a,b): circles with solid line, Waterfall Reef; circles with dotted line, Whangateau Harbour; inverted triangle with dashed line, Pakiri Beach. Key for (c,d,e): circles with solid line, Horseshoe Reef; circles with dotted line, Loomis Beach Lagoon.