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Northern Seahorse

Hippocampus erectus

Northern Seahorse (Hippocampus erectus) is a small, armored seahorse found in western Atlantic seagrass beds, mangroves, and floating Sargassum. It is a slow ambush predator that grips vegetation with its tail and is not a typical angling target.

Saltwater
Northern Seahorse reference image
Pauline Walsh Jacobson, cc-by, via Wikimedia Commons. Source: Wikimedia Commons.

Identification points

  • Upright horse-like body with a long tubular snout
  • Prehensile tail coiled around grass or coral
  • Often banded or mottled with a tall coronet and bony rings

Habitat

Shallow coastal habitats with eelgrass, turtle grass, mangrove roots, oyster beds, and drifting weed or floating debris; usually in calm, sheltered water from estuaries to nearshore bays.

Bait notes

Not a standard game fish; if encountered, it is best photographed and released. Small live mysids, amphipods, or tiny shrimp are the prey it naturally takes, but fishing for it is generally discouraged.

Behavior

Feeds by suction on tiny crustaceans such as mysids and copepods, striking from a fixed perch. It spends much of its time clinging upright to vegetation or structure and moves little except when drifting or shifting grips.

Caution

Protected or regulated in many places; check local rules and never collect from the wild without permits. Handle gently, as the bony body and delicate snout are easily damaged.

Fishing notes

Avoid targeted angling. If accidentally caught on very light tackle or in seagrass habitat, keep it wet, do not squeeze it, and release immediately with minimal handling.