Saving Seafood

Outer Banks fisherman will test device that could save sharks — by tickling them

October 18, 2019 — Fun fact: Sharks, unlike fish, can sense electrical stimuli, according to scientists.

Researchers in North Carolina are hoping to use that biological trait to their advantage with the help of a small electronic device designed to protect sharks from overfishing, N.C. State University announced in a press release this month.

The device, which “has shown promise in the laboratory,” is reportedly ready to start pilot testing off the Outer Banks.

“Several sharks are overfished or are experiencing overfishing on the U.S. East Coast,” fisheries extension specialist Sara Mirabilio said in the release. “Populations of scalloped hammerhead, dusky, sandbar and blacknose sharks all could benefit from an effective deterrent from commercial fishing gear.”

The device could also help fishermen save time and money. Sharks like to chomp on fish while they’re hooked — leaving fishermen with just a head by the time the fish are reeled in, the Virginian-Pilot reported.

Capt. Charlie Locke, an Outer Banks fisherman, has partnered with researchers on the project.

Read the full story at The Charlotte Observer

New device to be tested off Outer Banks could help save sharks from commercial fishing all over the world

October 17, 2019 — An Outer Banks fisherman next summer will test a device about the size of a spark plug that could save rare sharks.

The waterproof gadget with a transistor inside would be connected just above the hooks on a long line used for commercial harvesting of species such as tuna and swordfish. It would emit an electric pulse that drives sharks away from the baited hook.

“If this works it will be huge,” said Outer Banks fisherman Charlie Locke. “It could benefit fisheries all over the world.”

Sharks swarm the waters around the Outer Banks with many species spawning and giving birth here.

Hungry sharks gobble chunks from large tunas on commercial fishing lines. Charter boat anglers often reel in nothing but a fish head after a shark has bitten off the rest.

“We already know there is a healthy population here,” Locke said.

Read the full story at The Virginian-Pilot

Warming Waters Bring New Marine Species to NC, But Chase Away Some Familiar Ones

Bull sharks and lion fish are among the species becoming more common in North Carolina, while black sea bass and other fish are getting harder to find.

August 8, 2017 — A big reason reason North Carolina is seeing so much change in its marine species is because the state has an unusual variety of them, said Sara Mirabilio, a researcher and fisheries extension specialist with North Carolina Sea Grant.

Near Cape Hatteras, the cold Labrador Current comes down from the Arctic, and the warm Gulf Stream flows up from the Gulf of Mexico.

“We are at the northernmost range for southern species and the southernmost range for northern species,” she said. “So climate change at the boundaries will show the most impact.”

In many ways climate change is unfolding as the slowest of slow-motion disasters. But fish can move quickly and for long distances when spurred by relatively small changes in water temperature.

Lately they have moved so quickly that fisheries regulations are lagging, and tensions are rising between commercial fishermen based where the fish used to be, and those where the fish have moved.

On a recent day, Mike Ireland’s 99-foot trawler “Sharon Nicole” was docked behind a seafood wholesaler in the Hobucken community east of New Bern, just off the Pamlico Sound.

Shrimp season was under way, but he and his crew were repairing one of the massive, powered winches that haul in their nets. It was an especially crucial one, because it reels in the small net they drag to locate fish.

“This is probably the most important tool on the boat,” Ireland said. “With this little sample net you can really pinpoint where they’re at.”

Read and listen to the full story at WUNC