Saving Seafood

Regulators consider what to do about collapsed lobster stock

November 9, 2015 — PORTLAND, Maine (AP) — Interstate fishing regulators are considering what to do about southern New England’s collapsed lobster population, and fishermen fear new restrictions could land on them as a result.

The lobster population has sunk to the lowest levels on record in southern New England waters, affecting once-productive fishing grounds off Rhode Island and southern Massachusetts. The catch off Rhode Island is a third of the size that it was in the late 1990s, and it has all but disappeared off Connecticut.

A science committee of the Atlantic States Marine Fisheries Commission is working on a report about the lobster stock that the commission’s lobster board will see in February. The board could then make a decision about the future of the fishery, including changing quotas or enacting new restrictions.

William Adler, a longtime Massachusetts lobstermen and a member of the lobster board, said that a moratorium is not likely on the table but that something needs to be done to conserve the region’s lobsters, which are beloved by restaurant diners.

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

Climate change fuels cod collapse

November 3, 2015 — The strongest link yet between climate change and the collapse of New England’s cod fish stunningly confirms how global emissions fuel regional calamities. The problems can no longer be contained by fishery council catch limits. They now demand worldwide greenhouse gas solutions.

A team of scientists, including those from the Gulf of Maine Research Institute, the University of Maine, and the Bigelow Laboratory for Ocean Sciences in Maine, found that average surface water temperature in the Gulf of Maine rose four degrees between 2004 and 2013. Temperatures in the gulf have risen faster than in 99 percent of all sea waters, with record warmth recorded in 2012.

Four degrees is trivial to humans, who can shed sweaters or seek shade. But for a cold-blooded fish at the southern edge of its breeding range, unable to turn on the AC against the northward shift of the Gulf Stream, four degrees is a sauna. Less cod larvae survive in warmer water, possibly because their cold-water zooplankton food is also less available. Surviving cod then seek deeper, colder water, where more voracious predators await to compound their mortality.

The study, published last week in the journal Science, helps explain why cod stocks have not rebounded under draconian federal catch limits. Adding in the negative impact of warmer water, researchers found that fishing mortality was far too high to rebuild stocks even when fishermen did not exceed quotas.

Read the full story at Boston Globe

A fisherman’s doubt, and his love of the sea

November 3, 2015 — He is up before the dawn, and, a creature of steady habits, he heads for the seashore.

It’s dark when Frank Mirarchi jumps into his black pickup truck, and dark still when he reaches Scituate Harbor. He parks on the town pier and stares at the ocean. But his 55-foot stern dragger is no longer moored there.

Actually, the boat is there. But it’s no longer his. It was renamed last June after he sold it — a poignant punctuation point to Mirarchi’s half-century career as a commercial fisherman.

“I’m down here every morning to watch the boats go out,’’ he told me Monday as we sat on a bench overlooking the dazzling harbor and under an unseasonably warm autumn sun. “I did it for 52 years. And I still love it.’’

I first met Mirarchi in early January when the harbor was icy and fat flakes of snow gently fell as if one of those snow globes had been softly shaken.

He is the son of a scientist and is something of a self-taught scientist himself. When I suggested Governor Charlie Baker would do well to pick his brain and appoint him to an ad hoc group looking into the travails of the cod fishery in the Gulf of Maine, the new governor took my advice. And soon Mirarchi was shaking hands with Baker on Beacon Hill.

When the latest news arrived last week about the depths of the cod collapse, the numbers were so alarming that I instantly thought of Frank and those like him who found their livelihood at sea.

Read the full story at Boston Globe

Will Maine lobster crash like cod? Only close ocean monitoring will tell

November 2, 2015 — There was a mix of news about the Gulf of Maine last week. First, there were dire warnings about the role of rising ocean temperatures in the demise of cod in the North Atlantic. Then came what sounded like good news — Maine has surpassed Massachusetts to become the state with the second most lucrative seafood landings in the country. Finally, on Friday, federal regulators announced they would close the Gulf of Maine herring fishery this month.

All of these stories are interrelated and point to the need for much more research to gain better understanding about what is happening in the Atlantic Ocean and why. With better knowledge about how changing ocean conditions affect different species, regulators can more effectively target rules to protect them and the fishermen who make a living catching them.

The virtual disappearance of cod from the waters off New England is not news. But a new report, published in the journal Science, concludes that rising ocean temperatures played a much larger role in the decline than initially thought. The study’s lead author, Andrew Pershing, is a scientist with the Gulf of Maine Research Institute in Portland.

In the simplest sense, regulators decide how many tons of a species can be taken from the ocean based on assessments of that species’ population. The problem with cod management, Pershing’s report concludes, is that regulators didn’t fully grasp the severity of the ocean temperature increase and what it meant for the legendary groundfish. As a result, regulators allowed fishermen to catch too many cod.

“Failure to recognize the impact of warming on cod contributed to overfishing,” the report said. “Recovery of this fishery depends on sound management, but the size of the stock depends on future temperature conditions. The experience in the Gulf of Maine highlights the need to incorporate environmental factors into resource management.”

This is especially true in the gulf, which is warming faster than 99.9 percent of the world’s oceans. Most troubling, beginning in 2004, the rate of warming in the Gulf of Maine increased more than seven-fold, the report says. Because of this rapid warming, regulatory limits on cod fishing didn’t work because cod did not reproduce and grow as expected.

This isn’t an academic problem. As the cod population declined, regulators imposed quotas that allowed fishermen to catch less. When the population didn’t rebound, regulators tightened the quotas, adding to the economic hardship for fishing communities.

Read the full editorial at Bangor Daily News

Maine business owners explore challenges, opportunities of climate change

October 30, 2015 — SOUTH PORTLAND — Several Maine business owners said Friday that adapting to climate change doesn’t have to be costly and, in many cases, can help a company’s finances as well as the environment.

Climate change presents considerable challenges but also potential opportunities to Maine businesses and communities, many of which are witnessing the impacts of a changing ocean environment before their counterparts elsewhere around the country. That was a key theme of a forum co-sponsored Friday by the South Portland Chamber of Commerce and the Natural Resources Council of Maine.

“Ultimately, this has to make economic sense,” U.S. Sen. Angus King, I-Maine, said via Skype because early-morning budget votes in Washington prevented his return to Maine. “We can’t depend on everybody simply being good guys or nice men and women. It has to work in terms of a return on investment.”

Laying out the challenges facing Maine due to a changing climate, King and Gulf of Maine Research Institute President and CEO Don Perkins discussed how lobster and other fish species are already changing their habits as the Gulf of Maine warms. A recent six-part Portland Press Herald series explored the ecological and economic implications of the fact that the Gulf of Maine has warmed faster than almost every part of the oceans around the globe during the past decade.

“It’s real and it has very sobering implications for our fishing industry, obviously,” said Perkins, whose staff at GMRI recently co-authored a scientific study showing cod populations were not recovering because of warming Gulf of Maine waters. “Once you get over agonizing about that – and it is cause for agony – the fact is that we’re dealing with that problem a decade or a few decades earlier than many other ocean regions. And as a result, there is a huge opportunity in this state to figure out how to understand a changing system.”

Read the full story at Portland Press Herald

 

Maine isn’t doing enough to protect the Gulf from the effects of climate change

October 30, 2015 — When the Maine Legislature’s commission on ocean acidification reported its findings – that the state’s fisheries and aquaculture industries were threatened by this baleful byproduct of global warming – officials here were not exactly spurred to action.

Acidification, driven by increased carbon dioxide from the atmosphere and freshwater runoff from extreme rainfall in river basins, has been implicated in failures at oyster hatcheries and mussel farms, and has been shown to weaken clams and other shell-building animals vital to Maine’s fishing and aquaculture industries. But bills introduced in the last session – one each by a Democratic marine scientist and a Republican lobsterman – to implement many of the panel’s findings were withdrawn, one for lack of resources, the other for lack of support from Gov. Paul LePage’s administration.

“I could see the bill wasn’t going to go anywhere and that the governor was going to veto it,” Rep. Mick Devin, a Democrat from Newcastle, says of legislation he sponsored to allow the commission to continue its work for another three years.

Patricia Aho, who was the commissioner of environmental protection until she resigned in August, opposed Devin’s bill, saying the status quo was sufficient. “Since the issues of climate change and ocean acidification are inextricably linked, we think it will be more efficient to consider this issue in the broader context of climate change and adaptation programs,” she said in written testimony to legislators.

Devin’s bill and another one sponsored by Rep. Wayne Parry, a Republican from Arundel, were carried over to the next legislative session. Parry’s bill would have put a bond issue on the ballot that would borrow $3 million to fund several of the expert committee’s recommendations: collecting data, monitoring waterways, and performing tests in coastal waters to better assess the impact of acidification on wildlife and commercial fish species. It was withdrawn after failing to make it to the top of an informal list of bonding priorities drawn up by legislative leaders.

Read the full story at Portland Press Herald

 

Feds: Maine beats Massachusetts for fisheries landings value

October 30, 2015 — A 23 percent increase in the value of the country’s 2014 total lobster landings has made Maine the second-most lucrative state for commercial marine fisheries behind Alaska, according to federal officials.

Maine, where 84 percent of all lobster caught nationwide was brought ashore last year, surpassed Massachusetts with help from a 75 cent increase in the national average price lobstermen earned for their catch, according to an annual report released Thursday by the National Marine Fisheries Service. The national average price paid to fishermen for lobster increased from $3.08 in 2013 to $3.83 in 2014, federal officials indicated in the 2014 Fisheries of the United States report.

Read the full story from the Bangor Daily News

Scientists: Warming Ocean Factor in Collapse of Cod Fishery

October 29, 2015 — PORTLAND, Maine (AP) — The rapid warming of waters off New England is a key factor in the collapse of the region’s cod fishery, and changes to the species’ management are needed to save one of America’s oldest industries, according to a report published Thursday in Science magazine.

Fishery managers say cod spawning in the Gulf of Maine — a key fishing area between Cape Cod and Canada that touches Massachusetts, Maine and New Hampshire — is only about 3 percent of sustainable levels, and participants in the fishery that dates to the Colonial era face dramatic quota cuts as a result.

The scientists behind the Science report say the warming of the Gulf of Maine, which accelerated from 2004 to 2013, reduced cod’s capacity to rebound from fishing pressure. The report gives credence to the idea — supported by advocacy groups, fishing managers and even some fishermen — that climate change has played a role in cod’s collapse.

The lead author of the study, Andrew Pershing of the Gulf of Maine Research Institute in Portland, said the gulf is warming at a rate 99 percent faster than anywhere else in the world, and as a result, too many of the fish aren’t living past age 4 or 5. Cod can live to be older than 20.

“Every animal has a temperature range that they prefer. The Gulf of Maine, for cod, is really at the warm end of that,” Pershing said. “If you warm it, you push it somewhere that’s really uncomfortable.”

Read the full story from the Associated Press at The New York Times

Ocean acidification threatens future of aquaculture, shellfish industries

October 29, 2015 — In seawater tanks in a refrigerated room at the Darling Marine Center, the baby mussels are thriving.

Two months ago they were near-invisible larvae, swimming around in the tanks. Now tens of thousands of the tiny mollusks, each just a few millimeters long, have attached themselves to the different kinds of rope scientists have been testing here, and are eating the lab’s stock of algal food at an impressive clip.

Mick Devin, the lab manager at this University of Maine marine research facility, has been overseeing this experiment, part of an effort to master the art of hatching mussels, something mussel farmers – who grow their product on lines hanging in seawater – have never previously needed to do.

“Mussel farmers have been able to just throw their lines out and collect all the larvae they want from nature,” Devin says. “But mussel populations are down drastically in this state, so that may not be working so well now.” Hatcheries, he expects, may have to step up in the not-too-distant future.

Mussels have been vanishing from stretches of coastline where they once were ubiquitous, and scientists remain uncertain as to why. Green crabs, whose population exploded after an “ocean heat wave” in 2012, may have stripped many sections clean. But warmer water and increased rainfall – both problems expected to grow in Maine as a result of global climate change – may be creating a far worse problem: an acid sea.

“We know this affects larval development in bivalves, (and) chances are it will result in decreased numbers, whether it’s a natural population on a bed or one in a farm,” says Paul Rawson of the University of Maine’s School of Marine Sciences, who is in charge of the research. “We need to make sure the technology is in place so the farms will have a reliable source of seed.”

The world’s oceans are turning more acidic. Since the Industrial Revolution, carbon dioxide levels in the atmosphere have grown by more than 70 percent and now stand at the highest level in at least 800,000 years. As the oceans absorb additional CO2, they’ve become 30 percent more acidic over this period. By 2050, scientists estimate surface pH levels will be lower – that is, more acidic – than at any time in several million years and by 2100 more acidic than any time in the past 300 million years – two or three times more so than today.

Read the full story at Portland Press Herald

Cod Could Recover in Warming Waters

October 28, 2015 — The first clue came in 2008, recalled George Rose, a marine biologist at Memorial University of Newfoundland, when he saw the cod aggregating in large numbers offshore during the spawning season. It was a sight he had sorely missed in 15 years. In the early 1990s, cod fisheries suffered such a dramatic collapse that they emerged as an aquatic poster child for fisheries mismanagement, according to Rose.

In a paper published yesterday in the Canadian Journal of Fisheries and Aquatic Sciences, Rose and his colleague, Sherrylynn Rowe, document the comeback of the Atlantic cod off Newfoundland and Labrador over the past decade. The fact that they have shown that the cod stock there is on the way to recovery is good news, Rose said, as “it shows that it is not all gloom and doom.”

Their study attributed the recovery to improved environmental conditions, better fish management and the availability of an important food source, capelin, whose populations also fell drastically in the early 1990s and have recently bounced back, too. The rebound of Atlantic cod in this region contrasts with their rapidly declining populations off the northeastern coast of the United States, where until last year the stocks remained significantly below sustainable levels. Previous research has associated this persistent population slump with the pressures of overfishing and also warming waters. The warming temperatures, however, seem to be favoring a cod fishery revival in Newfoundland and Labrador, or at least not hampering its recovery.

Read the full story at Scientific American