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The Spotfin Killifish

Spotfin Killifish is a small Atlantic salt-marsh fish. It consumes both organic material and a variety of tiny animals.

Range and Identity

Fundulus luciae is recorded from Massachusetts toward North Carolina. This coastal range should remain separate from that of similarly named topminnows elsewhere. A small fish in a marsh needs diagnostic evidence before it is assigned to this species.

Habitat and Behavior

Adults inhabit salt marshes. The food account includes detritus and diatoms together with small crustaceans, insects and worms, supporting an omnivorous description. A marsh setting alone would not establish that mixture without the feeding observations.

Food and Life History

The larger upper reference is five centimeters total length, while the accompanying narrative contains a smaller four-centimeter value. The five-centimeter reference is retained. This species is not described as an annual seasonal killifish, and an independent maximum mass is unavailable.

Field Note

Keep the coastal locality and measurement convention with a record. Small differences in reported size can matter for a fish only a few centimeters long, particularly when source sections give different upper values.

All Lakes With Spotfin Killifish

Browse lakes and reservoirs with documented Spotfin Killifish records, listed alphabetically. Records do not establish current abundance or public access. Check the evidence and managing authority for the water you choose.

No published lakes are currently linked to this species in our confirmed records.

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