The seafood includes crayfish, prawns, tuna, mussels, oysters, calamari, mackerel, and lobster. The species are mostly pelagic&colon; sardines, anchovies and jack mackerel. The Sulu and Celebes Seas provide fish such as tuna, mackerel, and sardines. Vietnamese fish sauces are made with anchovies, mackerel, scabbard fish and salt. Mahi-mahi are carnivorous, feeding on flying fish, crabs, squid, mackerel, and other forage fish. The fish has a mild, oily taste similar to Spanish mackerel or bluefish. It is often absent in fast swimming fishes such as the tuna and mackerel families. It is often absent in fast-swimming fishes such as the tuna and mackerel. Smaller mackerel are forage fish for larger predators, including larger mackerel and Atlantic cod. Fish sought after include tarpon, sailfish, mackerel and many others. Some of their prey include herring, mackerel, and capelin. This species feeds on squid, pelagic crustaceans, lanternfishes, flying fishes, sauries, and other mackerel. Like other mackerels, reproduction in the Atlantic mackerel is oviparous. The type species for scombroid mackerels is the Atlantic mackerel, "Scomber scombrus". They are in turn eaten by billfish, mackerel, and sharks.