1, the difference of sea cucumber thorns: Dalian sea cucumber thorns are thin and long, while Shandong sea cucumber thorns are thick and short.

2, the difference between sea cucumber meat: Dalian sea cucumber meat is thin, Shandong sea cucumber meat is thick.

3. Product difference of sea cucumber: Dalian fresh sea cucumber is slender, so dry sea cucumber sells better than Shandong short sea cucumber.

Domestic sea cucumber producing areas mainly include: Shandong sea cucumber with Yantai, Weihai and Qingdao as the core, Liaoning sea cucumber started earlier, belonging to the traditional sea cucumber breeding base, Dalian Bangqu Island, Zhangzi Island, Xingcheng Juehua Island and other surrounding waters. Southern sea cucumber is based in Fujian.

Characteristics of Liaoshen and Yantai sea cucumber: deep sea wild sowing; Produced in the cold waters of Bohai Bay, it is wild, fleshy, slow-growing, prickly, hard and tough. Basically, it can be summarized as "prickly, sleeping in summer, long growing period".

In terms of nutritional value, Liaoning Stichopus japonicus and Shandong Ginseng are the best, but there is almost no difference in appearance between Liaoning Stichopus japonicus and Yantai Long Island Sea Cucumber. They grow in the same sea area. The colder the sea water temperature, the slower the growth cycle and the better the quality of sea cucumber. Specifically, the temperature of seawater affects the summer sleep of sea cucumber, thus affecting the quality of sea cucumber. Of course, the sea water temperature alone is not comprehensive, but it is also an important symbol to distinguish the quality of sea cucumbers.