Which mollusk is fastest growing among common species?

• A. Mussel
• B. Lobster
• C. Oyster
• D. Clam

Answer: (A)

Mussels tend to be the fastest-growing mollusks in common aquaculture settings. They feed efficiently on plentiful phytoplankton and convert that food into biomass quickly, and they can be stocked densely on ropes or culture lines, which accelerates total production. In typical farming conditions, mussels can reach market size in roughly a year to 18 months, depending on water temperature and food availability. Oysters and clams generally take longer to achieve the same size and can be more affected by disease and environmental shifts. Lobsters are not mollusks at all; they’re crustaceans, with different growth dynamics and grow-out timelines. So, among the common species listed, mussels grow fastest.