Bay scallops are hermaphrodites. Its rapid growth and development, the spring cultivation of the seed, breeding to the autumn (shell up to about 5 cm), the gonads mature, and can be used as pro-shell eggs breeding seedlings. The smallest biological type is 2.2 cm. The gonad is confined to the abdomen. The testis is located at the outer periphery of the abdomen and is milky white at maturity. The ovary is located on the inner side of the testis and is brownish when mature. Usually the surface of the gonad is covered with a layer of black film. During the progressive maturation of the gonad, the black film gradually disappears and the testis gradually disappears. The ovaries are clearly distinct.
When the gonads begin to develop, given a certain amount of bait under temperature control conditions, can promote the maturation of the gonads in advance and emit sperm and eggs, which is the biological basis for the advance seedlings and seedlings nursery. In the northern waters of China, the Gulf scallops have two spring and autumn breeding seasons in one year, from late May to June in spring and from September to October in autumn. After the reproductive period in autumn, the abdomen is transparent and there is no egg.
When the gonads begin to develop, given a certain amount of bait under temperature control conditions, can promote the maturation of the gonads in advance and emit sperm and eggs, which is the biological basis for the advance seedlings and seedlings nursery. In the northern waters of China, the Gulf scallops have two spring and autumn breeding seasons in one year, from late May to June in spring and from September to October in autumn. After the reproductive period in autumn, the abdomen is transparent and there is no egg.