What does the bream of the family Sparus look like? How much is the general market price per jin? Is it a sea fish? What is the nutritional value?

Snapper, Sparus, Sparidae, also known as Gagi, Bengaji, Sparus, Bronze basin fish. The distribution is mainly in the Bohai Sea / Yellow Sea. So what does snapper look like? How much is the general market price per jin? Is it a sea fish? What is the nutritional value? From Guangzhou water