Hvældefasen

Hvældefasen refers to a specific stage in the growth of certain mollusks, particularly bivalves like oysters and mussels. It is characterized by a noticeable swelling or bulging of the mantle tissue, which is the organ responsible for secreting the shell. This expansion of the mantle is a precursor to the formation of new shell material or the repair of existing shell damage.

During the hvældefasen, the mollusk's metabolic rate may increase as it mobilizes resources for shell deposition. The mantle cells become highly active, secreting organic matrix and minerals that solidify into calcium carbonate, the primary component of mollusk shells. This process allows the mollusk to grow its shell, protect itself from predators, and adapt to environmental changes. The duration and intensity of the hvældefasen can vary depending on species, age, and environmental conditions such as food availability and water temperature. Observing this phase can provide insights into the health and growth potential of mollusk populations.