Seafood includes tuna, sardines, shrimp and bonito. The species are mostly pelagic&colon; sardines, anchovies and jack mackerel. Rock lobster, scampi, squid, tuna, and sardines are the predominant seafoods. For this technique, fat marine fish like herring, sardines and mackerel are often used. Because the coast is so long, fishing is popular, especially sardines, tuna and anchovies. Herrings are a preeminent forage fish, often marketed as sardines or pilchards. It is produced by algae and accumulates in shellfish, sardines, and anchovies. Sardines and anchovies were regular fare for the citizens of Athens. Sardines (or pilchards) are canned in many different ways. Its primarily eats smaller fish, especially schooling fish such as sardines. There are references in sources to canned cheese, fruit, meat, oysters, and sardines. The United Kingdom's Sea Fish Industry Authority, for example, classifies sardines as young pilchards. Favored fish include cabrilla, flounder, marlin, sardines, manta rays and various types of jacks. The Alboran sea also hosts important commercial fisheries, including sardines and swordfish. The Alboran Sea also hosts important commercial fisheries, including sardines and swordfish.