DUSKY SHARK

Carcharhinus obscurus

Dusky Shark

SIZE

To about 12 ft (3.7 m).

DISTINGUISHING CHARACTERISTICS

DISTRIBUTION

Cape Cod, MA, and Georges Back to FL, including Gulf of Mexico and Caribbean Sea.

HABITAT

Continental waters inshore to outer continental shelf and adjacent oceanic waters.

SIMILAR SPECIES

Sandbar shark, and bignose shark have higher first dorsal fins originating farther forward. Sandbar shark, most difficult to distinguish, attains smaller maximum size. Bignose shark has longer snout. Silky shark has second dorsal fin with free tip length usually more than twice fin height. Night shark has green eyes. Bull shark and Spinner shark lack interdorsal ridges.

MORE INFORMATION

Guide to Sharks, Tunas, & Billfishes of the U.S. Atlantic and Gulf of Mexico.
Text descriptions taken from Guide to Sharks, Tunas, & Billfishes of the U.S. Atlantic and Gulf of Mexico

Dusky shark length-weight relationship

Differences between dusky and sandbar sharks

Canadian Shark Research Laboratory

Ichthyology at the Florida Museum of Natural History

www.nefsc.noaa.gov
NMFS Search
Link Disclaimer
webMASTER
Privacy Policy
(File Modified Sep. 13 2011)