We bobbed gently on the azure blue water of the Atlantic Ocean. Flashes of silver light glistened in the water below us as the Spanish mackerel darted below the boat. “They like shiny and they like fast,” Zan told me. I made my cast, then reeled in for all I was worth. The fish hit the lure like a freight train, bending the rod tip almost to the water. After a fierce but short fight the spotted fish with the black back stripe flopped on the deck of the boat. It was the beginning of a...