Swanson RL, de Nys R, Huggett MJ, Green JK, Steinberg PD

In situ quantification of a natural settlement cue and recruitment of the Australian sea urchin Holopneustes purpurascens

Larvae of the Australian sea urchin Holopneustes purpurascens settle with preference on the red alga Delisea pulchra and on coralline turf, and they metamorphose in response to histamine, which is produced in high quantities by D. pulchra. The settlement cue from coralline algae may derive from bacteria.

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