Benthic varieties include the marine jewfish, croakers, grunters, snappers, groupers, ribbonfish and pomfrets. Larger fish like groupers, seabasses or croakers inhabit along the coasts. Shrimp, sardines, mackerels, carangid, croakers and other varieties are available. Major products include yellow croakers, oysters, razor clams, prawns and freshwater eels. Known prey taken include herring, anchovies, catfish, and croakers. It feeds mainly on bony fishes, including sea catfish, croakers, jacks, and grunts. Most of the bony fish findings represent tunas and croakers. Most of the bony fish findings belonged to tunas and croakers. They are preyed on by California halibut, rock bass, white croakers and other large predators. The royal tern usually feeds on small fish such as anchovies, weakfish, and croakers. Larimichthys is a genus of ray-finned saltwater fishes commonly known as yellow croakers. While spawning, croakers, migrate to Yeonpyeong Island. Its diet consists mainly of demersal teleost fishes such as croakers, goatfishes, and butterfishes. Stellifer is a genus of fish in the family Sciaenidae, the drums and croakers. Male spotfin croakers first mature and spawn when two years old and about long.