SharkDuskyDRP.jpg

Dusky Shark: Carcharhinus obscurus

Appearance:

  • Back is bronze-gray to blue-gray, fading to a white belly
  • Snout moderately rounded, shorter than or equal to mouth width
  • Second dorsal fin free tip less than twice as long as fin height
  • First dorsal fin starts over the pectoral fin free tip
  • Interdorsal ridge present

Similar Species: Sandbar shark, C. plumbeus (first dorsal fin starts in front of pectoral fin insertion); silky shark, C. falciformis (first dorsal fin starts behind pectoral fin free tip; longer second dorsal fin free tip)

Size: Up to 12 feet 

Habitat:

Nearshore and offshore waters; avoid estuaries with low salinities 

Behavior:

May live up to 40 years; feed on other sharks, fishes and squid

Additional Information

Recreational Regulations


Image Credit: © Diane Rome Peebles



FWC Facts:
Pyrodinium bahamense, an HAB organism that blooms each summer in Tampa Bay and Indian River Lagoon, chemically lights up to glow in the dark. This is called bioluminescence.

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