Answer
Spanish mackerel are smaller with yellow spots and a pronounced lateral line dip; king mackerel grow larger with muted spotting and different minimum sizes—misidentification risks fines. Kings favor different trolling spreads and regulations. Learn both profiles before keeping fish.
Sources: Maryland DNR · NOAA Fisheries
Editorial visitor guidance for Ocean City, Maryland. Confirm current Town of Ocean City, Maryland DNR, NPS Assateague, and NWS rules when regulations or safety apply.
