Larval response (+SE, n = 6 – 10) to a serial dilution of TBP after 6, 8 or 24 h.
Five coral species (Acropora millepora, A. tenuis, A. globiceps, A. surculosa, and Leptastrea purpurea) from four locations (Great Barrier Reef (GBR), Ningaloo Reef (WA), Guam and Singapore) were used in larval settlement assays with TBP together with controls of filtered seawater (FSW) and live crustose coralline algae (CCA). A. humilis, A. intermedia, A. digitifera, A. tenuis, Montipora hispida, Favia pallida and Pseudosiderastrea tayamai (Okinawa) were tested with TBP purified from bacterial extracts (see Supplementary Fig. S1 online). Black bars: mean percentage of larval metamorphosis without attachment, Grey bars: mean percentage of larval settlement and metamorphosis (with attachment).