larvolle

Larvolle is a term that refers to the larval stage of certain marine invertebrates. These planktonic larvae are a crucial part of the life cycle for many species, including mollusks, crustaceans, and echinoderms. The larval form is often morphologically distinct from the adult, adapted for dispersal and survival in the open ocean.

Larval stages can vary greatly in their duration, complexity, and morphology depending on the species. Some larvae are simple, resembling a basic planula, while others are highly specialized with unique feeding structures and appendages. These larvae typically drift with ocean currents, a process known as planktonic dispersal. This dispersal allows species to colonize new habitats and maintain genetic diversity across populations.

Once a larva has reached a suitable size and developmental stage, it undergoes metamorphosis. This is a significant transformation where the larval body plan is reorganized into the adult form. Following metamorphosis, the juvenile organism typically settles onto a substrate or enters a benthic environment to continue its development. The success of larval development and settlement is a critical factor in population dynamics and the overall health of marine ecosystems.