Nearly every Maryland record of the Atlantic spotted dolphin comes from Worcester County, the state’s Atlantic-facing shore, and nearly all of them landed in a single month: April. That fingerprint suggests one event or a tight cluster of events, most likely strandings or nearshore sightings along Assateague Island, rather than a regular seasonal presence.
That’s worth understanding before reading anything into the records. This is a warm-water dolphin of the Gulf Stream and the tropical Atlantic. Off Maryland it’s a visitor at the edge of its comfort zone, most plausible when warm water pushes farthest up the shelf. The Assateague shoreline, with its long ocean beach and steady stream of beachgoers and park staff, is simply where a dolphin in trouble, or one blown inshore, is most likely to be found and reported.
The state holds no resident population to speak of, which is why NatureServe treats its Maryland rank as not applicable. Maryland’s record is best read as a log of rare visits: a handful of encounters across decades, all on the ocean side, nearly all pointing back to Assateague. A spring report from that beach fits the pattern rather than breaking it.
