Protected Resources

Smooth Hammerhead Shark

Scientific name: Sphyrna zygaena
Smooth Hammerhead Shark, Image: Encyclopedia Britannica, Inc
Smooth Hammerhead Shark, Image: Encyclopedia Britannica, Inc.

Current Management Issues

On June 28, 2016, NOAA Fisheries announced a not warranted 12-month finding (81 FR 41934), determining that the smooth hammerhead shark does not warrant listing as threatened or endangered under the Endangered Species Act at this time. The species is not currently in danger of extinction throughout all or a significant portion of its range nor likely to become so within the foreseeable future.

On August 11, 2015, NOAA Fisheries made a positive 90-day finding (80 FR 48053), determining that the petitioned action may be warranted. A comprehensive status will be conducted to inform the 12-month finding.

On April 27, 2015, we received a petition from Defenders of Wildlife to list the smooth hammerhead shark (Sphyrna zygaena) under the ESA. The petitioners requested that we list either the entire global species, or any distinct population segments (DPSs). If the species does not warrant listing on its own merit, the petitioners request that the species be listed based on its similarity of appearance to the listed DPSs of the scalloped hammerhead shark (Sphyrna lewini). The petitioners also requested that critical habitat be designated concurrent with a final listing.

Please visit the Protected Resources Division’s ESA Section 4 page for more information on the ESA here.