Striped Killifish

Fundulus majalis

The striped killifish is a small Atlantic coastal killifish common on sandy beaches, tidal creeks, and estuarine marsh edges. It is often seen schooling in the swash zone and feeds on tiny crustaceans, worms, and insects.

Freshwater

Striped Killifish reference image — Smithsonian Environmental Research Center, cc-by, via Wikimedia Commons. Source: Wikimedia Commons.

Identification points

Slender, minnow-like body with a rounded snout
Distinct dark horizontal stripe running from snout through the eye to the tail
Small dorsal fin set far back toward the tail

Habitat

Shallow coastal saltwater and brackish habitats, especially sandy surf zones, tidal flats, salt marsh creeks, and eelgrass or shoreline edges of estuaries.

Bait notes

Tiny pieces of shrimp, bloodworms, clam, or sand fleas work well. Small nymphs, micro-jigs, and 16–12 size hooks with light tackle are effective for anglers targeting them or using them as bait.

Behavior

A surface-oriented, schooling fish that moves with the tides and waves. It forages by picking small invertebrates from sand, grass, and drifting debris, and often concentrates in the swash zone on beaches.

Caution

Small coastal forage fish, but avoid eating from polluted estuaries due to local contamination advisories. Check local regulations if using them as bait in protected marsh or beach areas.

Fishing notes

Fish ultra-light tackle near the edge of breaking waves, marsh drains, or creek mouths on moving tides. A small float, split shot, and quiet presentation help; they are more often caught incidentally than targeted as a sportfish.