Ground Ulva solution (GUS): A promising metamorphosis cue for Paracentrotus lividus larviculture

In conclusion, the formulation of GUS represents a promising advance in the development of protocols for echiniculture, meeting the need for tailored metamorphosis and settlement methods that support successful and cost-effective production of sea urchin juveniles. Moreover, it could represent an additional valuable method for obtaining marketable products from harvested Ulva grown in integrated multi-trophic aquaculture systems.