1, oysters in November of each year to the following year's May are oysters on the market, which in December to the next year's Qingming this time is the most fertile oysters.

2, oysters generally in May-June when the seedling reproduction, every year from May to September is the oyster reproduction period, this period of time the oyster stomach is full of eggs, meat, flavor are very poor, and is not suitable for fishing. And in November you can start fishing oysters, and in December to the next year's Qingming this period of time the oysters are the most fertile.