1, Appearance: Black herring usually has a long body length, a dark back, a silvery white abdomen and obvious blue spots on its side. The herring is short, with a dark blue back, a silvery white abdomen and no obvious spots on its side.

2. Ecological habits: Black herring belongs to marine fish, mainly inhabiting coastal waters near the sea, and likes to inhabit rocks, coral reefs and other sea areas with complex sediments. Children feed on small fish, crustaceans and mollusks. Black herring is also a marine fish, which is common in warm waters and likes to live near coral reefs and rocks. Black herring feeds on plankton and small fish.

3. Distribution: Black herring is mainly distributed in tropical and subtropical waters of the Pacific Ocean and Indian Ocean, including East Asia, Southeast Asia and northern Australia. Black herring is widely distributed in tropical and subtropical waters around the world, including Atlantic Ocean, Indian Ocean and Pacific Ocean.