title: Inhibition and induction of barnacle settlement by natural products present in octocorals.
abstract: Barnacle settlement inhibitors and inducers are present in the gorgonianLeptogorgia virgulata and the pennatulaceanRenilla reniformis. The inhibitors are low-molecular-weight compounds (<20,000 daltons) that were detected in soft tissue homogenates and dialysates of homogenate and in ambient "gorgonian water." Settlement was almost completely inhibited at a dialysate concentration of 1.0 g wet weight equivalents/liter. The inhibitors probably function in chemical defense against predation and fouling, and could prove useful in ship fouling control. The settlement inducers are high-molecular-weight substances (>20,000 daltons) that adsorb to surfaces.
authors: Duke University Marine Laboratory, 28516, Beaufort, North Carolina.
authors: J D
authors: JD
authors: Standing
authors: I R
authors: IR
authors: Hooper
authors: J D
authors: JD
authors: Costlow