Saving Seafood

The 50-Year Shark Search: UNC’s Institute Of Marine Sciences Celebrates Shark Research Anniversary

July 14, 2021 — Two years ago, Jeff Plumlee watched as his fellow crew members reeled a four-foot long blacknose shark onto the research vessel Capricorn. As they prepared to take the shark’s measurements, they saw something unexpected sticking out of her birth canal: a small tail fin.

“It was indicated to everybody on board [that]… okay, that is a baby shark,” said Plumlee. “She is giving birth on board.”

Quickly, the crew unhooked the shark without taking measurements and released her back into the water so she could give birth safely. Plumlee, who is a PhD student at the University of North Carolina’s Institute of Marine Sciences, helped carry the shark to the edge of the boat for release.

“It was really just intimate, being able to witness it and get the animal back in the water, watch her swim away,” Plumlee said.

Plumlee was searching for sharks off North Carolina’s coast as part of the UNC-IMS Longline Shark Survey. The survey is an effort from the Institute of Marine Sciences to record the diversity of sharks visiting the state over time. It began in 1972 under the late Frank Schwartz, a former professor and marine zoologist at the IMS. As scientists set off to record shark species again this summer, the survey is celebrating its 50th year of data collection, making it one of the longest-running shark research programs in the United States.

Read the full story at WUNC

A diet rich in omega-3 could reduce migraines

July 2, 2021 — A diet rich in omega-3 fatty acids could reduce migraines, a small study suggests.

Researchers found that a diet high in omega-3 – which can be found in supplements and oily fish – could slash persistent headaches by two to four per month.

According to the NHS, a healthy, balanced diet should include at least two portions of fish a week, including one of oily fish. Oily fish – such as salmon and sardines – are particularly high in long-chain omega-3 fatty acids. Omega-3 has been shown to have a beneficial effect on the heart.

The new research, published in the British Medical Journal, involved 182 people (88 per cent of whom were women, with a typical age of 38), who suffered migraines on 5 to 20 days a month.

The women were split into three groups, with the amount of omega-3 fatty acids (eicosapentaenoic acid – EPA, and docosahexaenoic acid – DHA) varying according to the diet, while the omega-6 linoleic acid was also monitored.

One diet increased the amount of EPA and DHA to 1.5g per day and maintained linoleic acid at around 7 per cent of energy intake. A second diet increased EPA and DHA to 1.5g per day and decreased linoleic acid to less than 1.8 per cent of energy, while the other control diet maintained EPA and DHA at less than 150mg per day and linoleic acid at around 7 per cent of energy.

Read the full story at Science Focus

UNCW Researchers Spawn Endangered Coral

August 25, 2020 — A University of North Carolina at Wilmington laboratory made history this month by spawning in captivity an endangered coral that once thrived in shallow reefs in the Caribbean.

Researchers at the university’s Center for Marine Science are the first to spawn two species of coral, including Orbicella faveolata, also known as mountainous star coral, in a laboratory.

Their success at reproducing the coral stems from a groundbreaking discovery just a few years ago in the United Kingdom, where a then-doctorate student collaborated with Neptune Systems, a company that makes aquarium controller systems, to electronically mimic environmental settings coral rely on in the wild to spawn.

“Ever since then other institutions and other laboratories have been able to do so,” said Nicole Fogarty, the assistant professor who headed the research in the lab referred to as the Spawning and Experimentation of Anthropogenic Stressors, or SEAS facility. “This has just been a big game-changer in trying to spawn corals in technology.”

Read the full story at Coastal Review Online

Study details mislabeling of North Carolina shrimp

September 10, 2019 — A third of shrimp labeled “local” wild shrimp in North Carolina was actually imported farmed shrimp, a new study found.

A forensics sciences class at the University of North Carolina at Chapel Hill obtained shrimp samples from 60 grocery stores and seafood markets across the state, and found that 35 percent mislabeled local shrimp at least once. That is consistent with the mislabeling rate on shrimp nationwide, the students wrote in the article published on BioRxiv.

Read the full story at Seafood Source