The bar jack is a silvery fish with a black and neon blue stripe along the back and into the tail fin. They are oval shaped with smooth scales and forked tail.
These jacks live in the western Atlantic in clear waters. Â Bar jacks frequent offshore structures like oilrigs and can often be found in schools.
They can be caught with small jigs and flies including sabiki rigs. They are often used for live bait for larger fish like tuna, wahoo and billfish.  They can also be lowered to the bottom as bait for various groupers, amberjack and snapper.