May is actually one of the best months to troll the East Coast—especially around Florida and up the Atlantic—for a few key reasons tied to fish behavior and ocean conditions: 1. Migration is in full swing A lot of pelagic species are moving north as water warms: • Mahi-mahi (dolphin) start showing up in good numbers • Wahoo are still around from spring runs • King mackerel and Spanish mackerel are active nearshore and offshore • Blackfin tuna can still be consistent depending on your area