NOAA Fisheries encourages fishermen to release shortfin mako sharks alive

Online map will show locations of live releases

May 25, 2011

This shortfin mako was hooked on a circle hook and is about to be released.

This shortfin mako was hooked on a circle hook and is about to be released.

(Credit: Mark Sampson)

To view more photos of shortfin mako sharks, visit our photo gallery.

NOAA’s Fisheries Service today launched a voluntary program to encourage commercial and recreational fishermen to safely release Atlantic shortfin mako sharks alive and report the releases to NOAA for posting on an online map.

The new program is designed to encourage the conservation of North Atlantic shortfin mako sharks. Scientific research shows many of these sharks are being caught and kept, damaging the long-term sustainability of the population.  The most recent assessment of North Atlantic shorfin makos found that the population had declined about 50 percent from the 1950s.

“We are working with the fishing community to encourage fishermen to voluntarily release these sharks alive to help sustain the shortfin mako population,” said Eric Schwaab, assistant NOAA administrator for NOAA’s Fisheries Service. “By releasing sharks that are unintentionally caught or caught for sport, U.S. fishermen will be leaders in encouraging fishermen from other nations to conserve this shark species.”

Shortfin mako sharks, like other shark species, grow slowly, mature late, and produce few young, making them vulnerable to fishing. The average female shortfin mako shark becomes sexually mature at 18, while males are mature at 8. This highly migratory species is managed by the International Commission for the Conservation of Atlantic Tunas, to which the U.S. is a member. The U.S. has been a leader in urging the international commission to adopt conservation measures to help rebuild the species.

Shortfin makos are often caught unintentionally by commercial fishermen who are targeting swordfish and tuna with longline gear. They are also caught by recreational fishermen and are a popular catch in shark tournaments. An increasing number of these tournaments encourage the live release of sharks to promote conservation. It is legal for commercial and recreational fishermen to retain the sharks. However, recreationally caught sharks must not be smaller than 54 inches from the tip of the shark's nose to the fork of its tail. While some fishermen continue to retain shortfin makos for food, fins, and jaws, NOAA’s Fisheries Service encourages fishermen to consider the effect on the stock in the long-term and choose to release them.

Capt. Mark Sampson, who runs a charter fishing business that specializes in shark fishing and runs a shark fishing tournament, is interested in reporting live releases of shortfin mako sharks to NOAA so they can be posted on the new interactive webmap.

“I plan on making this a part of my daily routine if we catch and release any shortfin makos,” said Sampson, who operates the charter vessel, Fish Finder, from Ocean City, Md. “I’ll encourage fishermen who may not want to take home the shark they catch for food to consider releasing it.”

NOAA encourages fishermen to learn how to safely release sharks so that they are not injured and the sharks are released in good condition. Fishermen may obtain a brochure at on the safe release of sharks and other highly migratory species.

For more information about the program, to view the interactive map and learn how to submit information on a live shark release, go to

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