Esminiu
Esminiu is a term that refers to a specific stage in the life cycle of certain types of sea urchins. It is characterized by the formation of a larval stage that is bilaterally symmetrical and planktonic, meaning it drifts in the open ocean. This esminiu larva will eventually undergo a remarkable metamorphosis into the radially symmetrical, spiny adult sea urchin. The duration and characteristics of the esminiu stage can vary among different species of sea urchins, influenced by factors such as water temperature and food availability. During this period, the larva feeds on microscopic organisms and grows. Successful development through the esminiu stage is crucial for the survival and reproduction of sea urchin populations, as it allows for dispersal to new areas. The transition from the esminiu larva to the juvenile sea urchin involves significant changes in body plan and feeding habits. Research into the esminiu stage provides valuable insights into marine invertebrate development and ecology.