Red shrimp, also known as "red mangzi" and "red mangzi" in Tongdong area. It belongs to the phylum Arthropoda and has the characteristics of small size, flat side and fast reproduction. March and April are the season when red shrimps are on the market, and they are also the most fertile season.
Shrimp is widely distributed in Indian Ocean, Pacific Ocean and Atlantic Ocean. Most species are distributed in Indo-Malay archipelago, along the coasts of Japan, Korea and China. Shrimp is small with thin skin and little meat. When the temperature is high, fresh shrimp can't be preserved for a long time, and the catch is large. Except for a few fresh shrimps, most of them are directly dried, or dried after cooking, which is called shrimp skin. The shrimps caught in spring are big and have good meat quality, and can be peeled into small shrimps after being cooked and dried. In addition, shrimp paste can be made by mashing shrimp, adding salt, insolating in the sun and fermenting; Soak in salt and filter out the juice of fermentation products, which is shrimp oil. Shrimp sauce and shrimp oil are used to season or pickle various side dishes with unique flavor. In addition to eating, when making shrimp skins, a large number of scraps such as skins, shells, heads and feet are used as feed or fertilizer. In addition, shrimp is also a good natural bait for fish and shrimp in shallow water.