Blackfin Tuna

Thunnus atlanticus
Regions
Florida
Protected status
None
Also known as

Species Profile

Florida saltwater profile data (FWC). Availability and detail varies by species.

FWC
Size
Common to 28 inches
Similar species
Yellowfin tuna, T. albacares (elongated second dorsal and anal fins); and bluefin tuna, T. thynnus (has short pectoral fins and reaches a much larger size) Size: Common to 28 inches
Appearance
  • Second dorsal and anal fins not elongated
  • Bronze stripe on sides
  • Second dorsal fin dusky and all finlets dark with white edges
  • Long pectoral fin nearly reaches below the beginning of the second dorsal fin
Habitat
Coastal to offshore waters
Behavior
Feed on small fishes, invertebrates and plankton.