Saving Seafood

Pew: Atlantic bluefin not ready for MSC certification

August 31, 2018 — The Pew Charitable Trusts has come out in opposition to a Japanese company’s attempt to get its Atlantic bluefin tuna longline fishery certified by the Marine Stewardship Council.

Last week, the council announced Usufuku Honten Co. Ltd. began the assessment process for the voluntary certification. It marked the first bluefin fishery to be assessed. Control Union Pesca Ltd. will perform the independent review, focusing on the Dai-ichi Shofuku-maru. The ship, which stays in the Atlantic Ocean all year, catches bluefin in October and November annually.

MSC certification is being sought because its process is designed to acknowledge fisheries that meet sustainable fishing management standards, Usufuku Honten said. The council, founded in 1997, has certified 296 fisheries located in 35 countries through its first 20 years of existence. That represents about one-eighth of the worldwide marine harvest. More than 38,000 groceries, restaurants, hotels, and other sites have also been certified to see the more than 25,000 products that come adorned with MSC’s blue label.

Read the full story at Seafood Source

 

A controversial comeback for a highly prized tuna

August 29, 2018 — SOUTH PORTLAND, Maine — On a drizzling summer afternoon in South Portland, marine biologist Walt Golet is helping attach a quarter-ton Atlantic bluefin tuna to a heavy crane so it can be weighed as part of New England’s premier tournament for the giant fish. And this year’s derby is different than many in the past — there are far more tuna.

A decade ago, participants in the Sturdivant Island Tuna Tournament went consecutive years in which they didn’t catch a single fish in the Gulf of Maine. This year, fishermen set a record with 30, including the 801-pound (363.33-kilogram) winner.

Their record haul is happening amid a turning point for these giant tuna, an iconic species that scientists say appears to be slowly recovering in the Atlantic Ocean. The reemergence of bluefin, which can weigh more than half a ton, has led to debate among fishermen, conservationists and scientists over just how much the big fish have recovered. It remains at a fraction of its population 60 years ago.

“There’s probably no fish that’s ever been more politicized than Atlantic bluefin tuna,” said Golet, a University of Maine professor. “People get a passion for this fish. And people are making a living off of this fish.”

The fish have long been at the center of a battle among commercial fishermen who can make a huge amount of money on a single fish, environmentalists who see them as marvels of marine migration, and consumers who pay a hefty price for them in restaurants.

Read the full story from the Associated Press at The Washington Post

Nations decide to increase quota for Atlantic Bluefin tuna

November 22, 2017 — MARRAKECH, Morocco — Countries fishing the eastern Atlantic and the Mediterranean agreed Tuesday to expand the annual quota for prized bluefin tuna to reflect an improvement in their stocks. Environmentalists insisted the increase was excessive.

The 50-nation International Commission for the Conservation of Atlantic Tunas agreed to increase the quota from 24,000 tons this year to 28,000 next year, with a further 4,000 tons added in each of the following two years.

The decision means the quota has more than doubled from five years ago, when once depleted stocks of bluefin tuna first started showing the potential of a recovery.

Read the full story from the Associated Press at the Boston Globe

Atlantic Bluefin Tuna Stocks Are Rebounding — But How High Should The Quota Be Raised?

November 7, 2017 — PORTLAND, Maine — Fishermen up and down the New England coast say it has been decades since they’ve been able to catch so many Atlantic bluefin tuna, so fast. Once severely depleted, populations of the prized sushi fish appear to be rebuilding.

Now the industry and some scientists say the international commission that regulates the fish can allow a much bigger catch. But some environmental groups disagree.

Peter Speeches is a commercial fisherman who sails his 45-foot boat, the Erin & Sarah, out of a Portland marina. His rods and reels are racked, though, and the boat has been docked the past several weeks. That’s because tuna fishermen reached their fall catch quotas earlier than ever this year.

“There was more fish here than I’ve seen in 30 years, and I fish virtually every single day. This year we caught probably the same amount, but in half the time,” he says.

This year, Speeches says, the thousand-plus boats that fish bluefin off New England were blessed by day after day of good boating weather. Forage fish such as herring and pogies showed up in numbers — and they swam relatively near to shore, bringing the big tuna in to feast, where smaller boats could get at them pretty easily.

Above all, he says, there were just a whole lot of bluefin around, and biting.

“They were everywhere. When they hit this year in July, they hit from the Canadian border to New Jersey, and they were thick. And they got caught fast,” Speeches says.

Read and listen to the full story at Maine Public

Tuna lab leaving Gloucester, Mass.

Lutcavage, colleagues to work out of UMass Boston

October 6, 2017 — For the first time in almost seven years, the highly-regarded Large Pelagics Research Center affiliated with the University of Massachusetts no longer has a Gloucester address.

The center, which has performed groundbreaking and internationally acclaimed research on the spawning habits and habitats of Atlantic bluefin tuna, closed up shop Thursday at its most recent home — the Americold-owned building at 159 E. Main St. in East Gloucester.

Americold has been actively shopping the site for months and recently informed the center it would have to vacate its office space by the end of October. Molly Lutcavage, the founder and executive director of the center, and Tim Lam, an assistant research professor, didn’t bother waiting until the end of the month.

“It’s sad to think that we won’t have a Gloucester presence anymore,” Lutcavage said. “For now, I guess we’ll be working out of our houses and garages.”

The center has been forced to navigate some rough seas in the past few years, changing its affiliation within the University of Massachusetts system and being forced out of its original facility at Hodgkins Cove, where it had been housed since 2011.

Read the full story at the Gloucester Times

UMaine to Receive More Than $220K From NOAA to Study Tuna

August 11, 2017 — ORONO, Maine — The University of Maine is slated to receive more than $220,000 from the federal government to support research of Atlantic bluefin tuna.

Republican Sen. Susan Collins and independent Sen. Angus King say the money from the National Oceanic and Atmospheric Administration will help with UMaine’s research about the tuna’s age, growth and population in the northwest Atlantic Ocean.

UMaine researchers will work with dealers, fishermen and other stakeholders from Maine to North Carolina on the work.

Read the full story from the Associated Press at the U.S. News & World Report

Regulators changing fishing rules to protect endangered tuna

January 4, 2017 — PORTLAND, Maine — The federal government is changing some of the rules about how fishermen harvest tuna in an attempt to protect one of the species of the fish.

The National Marine Fisheries Service says the rule change is designed to steer fishermen who catch yellowfin tuna and swordfish via longline away from bluefin tuna.

Atlantic bluefin tuna are listed as endangered by the International Union for Conservation of Nature. Fishing boats sometimes catch them incidentally while targeting other species.

The fisheries service says the rule change will modify the way it handles distribution of quota transfers in the longline tuna fishery. The service says that flexibility will improve fishing opportunities while limiting the number of bluefin tuna that are incidentally caught.

Read the full story at The Washington Post

Tuna’s Declining Mercury Contamination Linked to U.S. Shift Away from Coal

November 23, 2016 — Levels of highly toxic mercury contamination in Atlantic bluefin tuna are rapidly declining, according to a new study. That trend does not affect recommended limits on consumption of canned tuna, which comes mainly from other tuna species. Nor does it reflect trends in other ocean basins. But it does represent a major break in the long-standing, scary connection between tuna and mercury, a source of public concern since 1970, when a chemistry professor in New York City found excess levels of mercury in a can of tuna and spurred a nationwide recall. Tuna consumption continues to be the source of about 40 percent of the mercury contamination in the American diet. And mercury exposure from all sources remains an important issue, because it causes cognitive impairment in an estimated 300,000 to 600,000 babies born in this country each year.

The new study, published online on November 10 by Environmental Science & Technology, links the decline directly to reduced mercury emissions in North America. Most of that reduction has occurred because of the marketplace shift by power plants and industry away from coal, the major source of mercury emissions. Pollution control requirements imposed by the federal government have also cut mercury emissions.

Progress on both counts could, however, reverse, with President-elect Donald Trump promising a comeback for the U.S. coal industry, in part by clearing away such regulations.

For the new study, a team of a half-dozen researchers analyzed tissue samples from nearly 1,300 Atlantic bluefin tuna taken by commercial fisheries, mostly in the Gulf of Maine, between 2004 and 2012. They found that levels of mercury concentration dropped by more than 2 percent per year, for a total decline of 19 percent over just nine years.

Read the full story at Scientific American

BP oil disaster might have hurt Bluefin tuna rebuilding, study says

October 3, 2016 — The release of 4 million barrels of oil in the 87 days following the BP Deepwater Horizon explosion in April 2010 occurred just as Atlantic bluefin tuna had returned to the Gulf of Mexico to spawn, and a small but significant percentage of the adult fish and their eggs and larvae were likely exposed to the toxic oil, according to a new study announced Friday (Sept. 30).

The study led by scientists with NOAA’s National Marine Fisheries Service and Stanford University concludes that the oil cumulatively covered 3.1 million square miles where fish, eggs and larvae were present in the weeks immediately after the accident.

When combined with other stressors affecting this species of tuna — including overfishing and warming seas caused by climate change — the addition of the oil’s impact “may result in significant effects for a population that shows little evidence of rebuilding,” the study published in Nature: Scientific Reports concluded.

The study, funded by the Natural Resource Damage Assessment for the BP spill required under the federal Oil Pollution Act, made use of computer modeling based on information gathered from 16 years of electronic tagging of 66 tuna that kept track of individual fish locations, temperatures and oscillating diving patterns. The information was compared with satellite observations of the breadth of oil from the spill on the surface of the Gulf to estimate the potential impacts.

Barbara Block, a Stanford professor of marine scientists and expert on Atlantic bluefin tuna, said in a Friday interview that the tagging program took advantage of earlier tagging information that indicated many of the Gulf-spawning tuna migrate back and forth from the Gulf of St. Lawrence in Canada. Researchers captured adult tuna in Canada and installed the tags. When the fish returned to Canada a year later, the tags dropped off and were collected, and their data was added to a long-term database on fish movements.

The information collected from the tags helped the scientists confirm their theories about the spawning habits of the huge fish, which can weigh as much as 1,000 pounds at maturity, and begin reproducing about 10 years after birth.

Read the full story at the New Orleans Times-Picayune

Tagging Ahi Tuna in the Western Pacific

July 5, 2016 — A respected research professor, scientist and part-time resident has been on Kauai for several weeks coordinating the latest phase of a tuna tagging project launched on Kauai and the Big Island three years ago.

Dr. Molly Lutcavage is a research professor at the University of Massachusetts Boston’s School for the Environment. She is also director of the Large Pelagic Research Center and is renowned for her extensive work with the Atlantic bluefin tuna fishing community.

The Ahi Satellite Tagging Project of the Pacific Island Fisheries Group is a joint venture that uses state-of-the art technology and partners fisheries organizations, policy makers and local fishermen in the effort to gather much-needed baseline data on ahi and other pelagic fish that live and migrate in waters surrounding the main Hawaiian islands and beyond.

“There’s very little information on these patterns for ahi in this region,” Lutcavage said.

“Most of PSAT or data logging tags on ahi were deployed in the eastern and western Pacific, so the Hawaiian islands remain a ‘data poor’ area as far as high-tech tag results,” she added.

Last week, six large yellowfin tuna (ahi) were tagged with pop-up satellite tags and released in waters off Kauai. If all goes well, the tags will collect data that will help identify their migration routes and behavior for one year, Lutcavage said.

Read the full story at the Garden Island