Is it a keeper? A spanish mackerel is a keeper today if it measures at least 14 inches, with a daily limit of 15.
Spanish Mackerel size limit, season and daily limit
Where
Season
Size limit
Daily limit
Atlantic Ocean & coastal bays
Open year-round
14 inch minimum
15 per person per day
Chesapeake Bay & tidal tributaries
Open year-round
14 inch minimum
15 per person per day
Notes
A 2026-10-31 check against the official source found a discrepancy in this species' notes (Chesapeake zone). Read the official wording before keeping the fish: https://www.eregulations.com/maryland/fishing/chesapeake-bay-seasons-sizes-limits
The Atlantic Spanish mackerel is a migratory species of mackerel that swims to the northern Gulf of Mexico in spring, and returns to southern Florida in the eastern Gulf, and to Mexico in the western Gulf in the fall.