Atlantic Thread Herring
Species Facts
Science Name: Opisthonema oglinum
Size: Grow to about 1 foot and 1 pounds.
World Record: 0.69 kg (1 lb 8 oz)
Description

"The Atlantic thread herring, Opisthonema oglinum, is a herring-like fish in the family Clupeidae. It has a dark blue-gray back, silvery sides, a white belly and a small head. It grows up to 38 cm in length. It can be found in shallow waters and harbors along the coasts of the western Atlantic Ocean, from Cape Cod down to Brazil, including the Gulf of Mexico. It feeds mainly on plankton, but also takes small fish and crustaceans. It is confused with the scaled sardine, Harengula jaguana, by anglers."

Sources

Froese, Rainer, and Daniel Pauly, eds. (2006). "Opisthonema oglinum" in FishBase. May 2006 version.