Saving Seafood

In the Dry West, Waiting for Congress

November 6, 2015 — KLAMATH FALLS, Ore. — Drought in the West is an ugly thing. Rivers trickle away to nothing, fires rage, crops fail, ranchers go broke, tribal people watch fish die. As Westerners fight over the little water left, tempers crack, lawsuits fly and bitterness coats whole communities like fine dust.

As the climate warms, the West gets meaner.

The Klamath River begins in southern Oregon and meets the Pacific Ocean among the redwoods in Northern California, draining nearly 16,000 square miles. Until recently, who got water and how much had been deeply contentious issues. In particular, the irrigators and the Indian tribes were angry at one another, and the users in the river’s upper basin were angry with users in the lower basin.

But in recent years, something changed. Hostility gave way to compromise. Just about everybody who wants some of that precious river flow has made nice, given and taken, sat down and compromised.

Three major agreements have been wrapped up in Senate Bill 133, introduced by Senator Ron Wyden, Democrat of Oregon, and several colleagues. The bill is supported by tribes that want to protect the fish; ranchers who want to feed their cattle; farmers who grow alfalfa and potatoes; fly fishermen and duck hunters; ecologists; a power company; and many local politicians of various ideological stripes.

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

Woods Hole Report: Climate, weather and the economy

October 31, 2015 — The coastal ocean and its fisheries have played a huge role in the cultural and economic development of Cape Cod. Yet recent changes in the atmosphere and deep ocean threaten the natural rhythms that govern the ecosystems of the shallow waters surrounding Cape Cod.

One factor affecting the coastal ocean in the northeastern United States is a change in the motions of the atmospheric jet stream. We felt the effects during the past winter, which was exceptionally cold and snowy. In recent years, the north-south movements of the jet stream have been increasing. However, the eastward motion has been stalling, resulting in more persistent weather patterns – cold or warm – that affect the temperature distribution in the coastal ocean.

In early 2015, the jet stream dipped well southward of its normal position and stalled, bringing a steady burst of storms moving along the coast and cooling the coastal ocean. By contrast, the jet stream remained well north of its normal wintertime position in the winter of 2011-2012 so that warm air remained over New England for much of the winter. As a result, spring water temperatures were much warmer than usual, 3-4 degrees Fahrenheit above normal over a six-month period, and as high as 10 degrees Fahrenheit for short time periods.

Research at Woods Hole Oceanographic Institution found temperatures of continental shelf waters in 2012 off New England were the highest they’ve been in 150 years of measurements.

Read the full story at The Metrowest 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

 

Climate change hurting New England cod population, study says

October 29, 2015 — The rapid warming of the waters off New England has contributed to the historic collapse of the region’s cod population and has hampered its ability to rebound, according to a study that for the first time links climate change to the iconic species’ plummeting numbers.

Between 2004 and 2013, the mean surface temperature of the Gulf of Maine — extending from Cape Cod to Cape Sable in Nova Scotia — rose a remarkable 4 degrees, which the researchers attributed to shifts in the ocean currents caused by global warming.

The study, which was released Thursday by the journal Science, offers the latest evidence of climate change — this time, affecting a species once so plentiful that fishermen used to joke that they could walk across the Atlantic on the backs of cod.

Fisheries management officials have sharply limited cod fishing in hopes of protecting the species, but they estimate the number of cod remain at as little as 3 percent of what would sustain a healthy population. The limits, in turn, have hurt fishermen.

“Managers [of the fishery] kept reducing quotas, but the cod population kept declining,” said Andrew Pershing, the study’s lead author and chief scientific officer of the Gulf of Maine Research Institute in Portland. “It turns out that warming waters were making the Gulf of Maine less hospitable for cod, and the management response was too slow to keep up with the changes.”

The institute had reported last year that the rise in temperatures in the Gulf of Maine exceeded those found in 99 percent of the world’s other large bodies of saltwater. The authors of Thursday’s study link the rapid warming to a northward shift in the Gulf Stream and changes to other major currents in the Atlantic and Pacific oceans.

They say the warmer water coursing into the Gulf of Maine has reduced the number of new cod and led to fewer fish surviving into adulthood. Cod prefer cold water, which is why they have thrived for centuries off New England.

The precise causes for the reduced spawning are unclear, the researchers said, but they’re likely to include a decline in the availability of food for young cod, increased stress, and more hospitable conditions for predators. Cod larvae are View Story eaten by many species, including dogfish and herring; larger cod are preyed upon by seals, whose numbers have increased markedly in the region.

Read the full story at the Boston Globe

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

 

NEFMC: Response to Study on Rising Water Temps in the Gulf of Maine

October 29, 2015  — The following was released by the New England Fishery Management Council:

The Gulf of Maine, located off northern New England and Canada, has hosted important commercial and recreational marine fisheries for centuries. In addition to existing threats from land-based pollution, marine discharges, energy development, and disturbances to habitat, a more recent problem, temperature rise, has emerged. The just-published paper in Science —Slow Adaptation in the Face of Rapid Warming Leads to the Collapse of Atlantic Cod in the Gulf of Maine — adds to the increasing body of work on this topic.

As an organization responsible for the management of fisheries in federal waters that encompass the Gulf of Maine, the New England Fishery Management Council (Council), along with partners, NOAA Fisheries and the New England states, offers comments on this paper.

  • Most importantly, climate change is a very real issue that affects fisheries in ways we are just beginning to understand and is one the Council and others must confront.
  • This particular paper presents interesting research, but as is generally the case, it is rare that any one scientific study provides “The Answer.” This one will almost certainly generate more discussion and further consideration of how fisheries management bodies might respond.
  • NOAA’s Northeast Fisheries Science Center is actively investigating climate change that could help develop possible responses. The Science paper will likely become part of the larger discussion on how to adapt and respond to climate change. During that process, it will be the subject of careful review, including testing of its assumptions and conclusions. Should they stand up to this scrutiny, the work may influence future quota-setting
  • Work is underway by the Council to look more broadly at fisheries through ecosystem-based fisheries management; those efforts may illuminate the way in which we consider this pressing threat to the productivity of fisheries in the Gulf of Maine and elsewhere.
  • More critically, the Science paper appears to presume that the Council should have anticipated the unusual temperature rise in 2012, without any explanation of how that could have been done. The current quota for Gulf of Maine cod is the lowest on record, and will almost certainly remain so in the foreseeable future. The goal at this time is to allow sustainable levels of fishing on healthy stocks, such as haddock, redfish, and pollock to continue, while creating the opportunity for cod to recover.

After reviewing the paper, Council Executive Director Tom Nies summarized his reaction to the challenges raised in the Science paper. “Fishery managers will need to adapt to the host of significant changes caused by the rapid rise in water temperatures in the Gulf of Maine; specifically, the New England Council will continue its close partnership with the scientific community in order to mount an effective response to this circumstance.”

View a PDF of the release here

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