Chinese river crab refers to a species of freshwater crustacean known as Eriocheir sinensis, native to the rivers and lakes of Eastern Asia, particularly China. It is also commonly known as the Chinese mitten crab due to the characteristic hair-covered claws resembling mittens. The body of the Chinese river crab is oval-shaped and can reach up to 6 centimeters in width, varying in color from green to brown with light-colored undersides.
Known for its culinary value, the Chinese river crab has gained popularity in Chinese cuisine for its tender meat and delicate flavor. It is commonly used in various dishes such as braised crab, salted crab, or crab soup. The female crabs are especially sought after for their rich orange roe, which is considered a prized delicacy.
The Chinese river crab has a unique life cycle, spending most of its adult life in freshwater before migrating to brackish water for reproduction. During this period, the female crabs undertake long-distance migrations to the lower reaches of rivers or estuaries to release their eggs, which hatch and develop as planktonic larvae in the marine environment. Once they reach a certain stage, the young crabs migrate upstream, favoring freshwater habitats, to grow and mature.
Despite their culinary and economic value, Chinese river crabs are considered an invasive species in many regions outside of their native range, including parts of Europe and North America. They have the potential to disrupt local ecosystems and outcompete other native species, making them a subject of concern for environmentalists and conservationists.
