Typical fish include cod, salmon, butterfish, and tai snapper. Rockpools often contain butterfish, gobies, sea anemones, shore crabs and shrimps. Escolar is sometimes fraudulently labelled as butterfish. Captive populations have been observed eating butterfish mixed with meat, frogs, earthworms, shrimp and mice. Common fish include shanny and butterfish and Atlantic and common seals are regular off-shore visitors. Other common names include pin perch, sand perch, and butterfish. Examples are the common blenny and its near relative the butterfish. In South Australia, the "Argyrosomus japonicus" is commonly called butterfish as well. The family Stromateidae of butterfish contains 15 species of fish in three genera. The gulf butterfish is highly esteemed for food. The Japanese butterfish "Psenopsis anomala" is from the separate family Centrolophidae. The meat of the Japanese butterfish is very popular as food in its native range.