中华绒螯蟹是我国重要的水产资源及养殖对象，近年来，河蟹在水产品中所占比重迅速增大。但随着河蟹池塘养殖及围垦高产养殖面积的扩大和大量采用当年繁殖的蟹苗当年养成商品蟹等生产技术方式，在获得高产量的同时，河蟹的商品规格却日渐变小。这种小规格商品蟹的品质及风味远 Eriocheir sinensis is an important aquatic resources and breeding object in China. In recent years, the proportion of crab in aquatic products has rapidly increased. However, with the expansion of high-yield culture area of ​​crab ponds cultivation and reclamation and the adoption of production techniques such as commercial crabs in the same year, the product specifications of crabs are getting smaller. This small size crab product quality and flavor far