Alex Palmer opened a storage locker on his dad’s fishing boat and began rummaging through six tackle trays chock-full of colorful plastic crappie jigs. “We don’t have to worry about running out of baits,” the 17-year-old said with a laugh. Palmer sees to that. A junior in high school, he operates a business making crappie jigs. When he isn’t in school, he is hand-pouring plastic baits, then handing them off to his mom, dad and sister for quality control and…