Big prawn is also called big prawn (big prawn), red prawn, Fujian prawn, prawn, etc. There are different reasons for the origin of these appellations. Because the shell of prawn is thin and transparent, even the yellow and white organs can be clearly seen through the shell, so the people in Shanghai and other places named it prawn. Shrimp is called "Minxia" in Fujian, because Fujian is called "Min" for short, and the word "Ming" of prawn is changed to "Min". Compared with male prawns, female prawns have some differences in body color. The female prawns are slightly brown and blue, while the male prawns are slightly brown and yellow, so fishermen call the female prawns "green prawns" and the male prawns "yellow prawns". Shrimp, like other shrimps, will be denatured in protein at high temperature, and the astaxanthin will be oxidized into astaxanthin and then turn red, so many diners also call it "red shrimp".