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MBSS Fish Information
SEA LAMPREY
Petromyzon marinus

The Sea lamprey is a member of the Lamprey family (Petromyzontidae). Adults live in the ocean and use freshwater streams to spawn and grow to maturity (anadromous).

The map below shows presence (green circles) of this species in the 1995-2019 MBSS dataset.
Illustration by Dave Neely

Distribution of Sea lamprey in Maryland (MBSS data):

The MBSS has collected the following fishes in the family Petromyzontidae:

Common Name Genus & species
Sea lamprey Petromyzon marinus
Least brook lamprey Lampetra aepyptera