Influence de la température sur la croissance de deux oursins comestibles, Paracentrotus lividus et Psammechinus miliaris

Psammechinus miliaris can live between 3 and 22°C, while Paracentrotus lividus needs warmer waters, from 8 to 30°C. We experimentally demonstrated that growth rates are directly temperature dependent optimal growth occurs at 14- 16°C in Psammechinus and 18-22°C in Paracentrotus. Growth is always better when Paracentrotus are fed with Laminaria digitata instead of Ulva lactuca.