A Histological Study in the Reproductive Status of the Pearl Mussel, Lamellidens Marginalis (Lamarck, 18 19)

The reproductive status of the pearl mussel, Lamellidens marginalis was studied for a one year period by seasonal (monsoon, winter and summer) observation of gonadal changes through the histological study. The gonad development, spawning and fertilization which dependable on climatic factors and the richness of food supply. The gametogenic activity begins in males and females during December and January in winter also maturation phases and breeding simultaneously in both sexes were observed during summer and early monsoon seasons.