South American Silver Porgy

Diplodus argenteus

The South American Silver Porgy, Diplodus argenteus, is a sparid fish known for its silvery coloration, often with a yellowish tint on its scales and fins. It features nine faint dark bars on its body, which are more prominent in juveniles and fade as they mature. A distinctive large black blotch can be seen on the caudal peduncle. This species typically grows to about 20–23 cm in length, with the largest recorded specimen reaching 37.8 cm. This species is found in the western Atlantic Ocean, ranging from southern Florida and the Bahamas to the coasts of South America, extending as far south as northern Patagonia. It inhabits clear, turbulent waters over rocky or coral bottoms, particularly in surf zones. Juveniles are often found in shallow pools between rocks or in seagrass beds, while adults prefer more exposed coastal areas. The diet of the South American Silver Porgy primarily consists of shellfish, including crustaceans and mollusks. Algae and polychaete worms are also part of their diet, especially in Brazilian waters. While this species is commercially fished, it is generally caught incidentally and is not a major target for fisheries. Divers may encounter these fish in their natural habitats, but they tend to be shy and move away when approached. The IUCN lists this species as Least Concern.