Saving Seafood

Maine disputes study that predicts sharp decline in Gulf of Maine lobsters

The Department of Marine Resources won’t be using researchers’ model to make management decisions, saying that forecasting fishery populations 30 years out is extremely difficult.

January 29, 2018 — The state agency that oversees Maine’s marine fisheries is questioning the reliability of a new study that predicts a sharp decline in Gulf of Maine lobsters over the next 30 years.

The Gulf of Maine Research Institute, the University of Maine and the National Oceanic and Atmospheric Administration built a computer model that predicts the population will fall 40 to 62 percent by 2030.

But Patrick Keliher, commissioner of the Department of Marine Resources, won’t be using the model to help him decide how to manage the state’s most valuable fishery, which pumped $533.1 million into the state economy in 2016.

“(He) does not have confidence in a model that simulates what might happen decades in the future,” spokesman Jeff Nichols said. “This is a wild resource, making predictions extremely challenging.”

Thirty years ago, when landings were less than 20 million pounds, no one could have predicted that the Maine lobster fleet would be landing more than 130 million pounds a year in 2016, Nichols said.

“The commissioner and his science staff don’t question the science, but rather see this as an unreliable tool on which to base management decisions,” he said.

The department isn’t alone in having doubts about the study. Maine lobster dealers voiced skepticism, too, recalling previous erroneous lobster forecasts by some of the same scientific organizations.

Read the full story at the Portland Press Herald

 

Conservation Practices Help Lobsters Weather Climate Change

January 29, 2018 — It’s no secret that the lobster fishery in southern New England is in trouble. The population has declined by almost eighty percent in the past few decades. In contrast, lobsters in the Gulf of Maine have exploded and the fishery has seen record landings. So, what gives?

Rising water temperatures are a big part of the story. Baby lobsters have a set-point: 61.5°F. Go much above that, and first-year lobsters start dying off. That’s what has been happening during recent summers in places like Buzzards Bay and Narragansett Bay. Meanwhile, in the Gulf of Maine, which is one of the most rapidly warming ocean areas anywhere in the world, the increase in temperatures has put lobsters into their sweet spot.

But that’s not where the story ends. A new study used a computer model to tease apart the influence of environmental changes and conservation practices, which differ significantly between Maine and southern New England. For generations, Maine lobstermen have been throwing back fertile females (after cutting a notch out of their tails so that they can be recognized even when they’re not carrying eggs) and the biggest lobsters. Those practices didn’t hit southern New England until a decade ago.

The conclusion of the new analysis is a bitter pill for southern New England lobstermen, according to Andrew Pershing, chief scientific officer and head of the Ecosystem Modeling Lab at Gulf of Maine Research Institute.

Read the full story at WCAI

 

New report says future of Maine lobster industry could be worse

January 29, 2018 — ELLSWORTH, Maine — Warming ocean waters will have a big impact on Maine’s $547 million lobster industry in coming years, but the future would look a lot bleaker if not for the conservation efforts of the state’s thousands of lobster fishermen.

According to a study led by scientists at the Gulf of Maine Research Institute, the University of Maine and NOAA Fisheries, conservation practices long advocated by Maine lobstermen are helping make the lobster fishery more resilient to climate change.

For generations, lobstermen in Maine have returned large lobsters and egg-bearing female lobsters to the water rather than keeping them. Lobstermen first marked the tails of the egg bearers with a distinctive “V-notch” to give them further protection.

According to the scientists, these conservation practices, developed by custom and now mandated by state law, distinguish the fishery in the Gulf of Maine, where Maine harvesters trap some 83 percent of all lobster landings, from southern New England, where fishermen historically refused to take the same steps to preserve large, reproductive lobsters.

Funded by the National Science Foundation and published this week in the Proceedings of the National Academy of Sciences, the study shows how warming waters and contrasting conservation practices have contributed to significantly different results in the two fisheries.

Over the past decade (at least until this past year), Maine lobster landings have climbed steadily, setting new records nearly every year. During the same time period, the southern New England lobster population, and lobster fishery, has collapsed.

According to figures compiled by regulators, the commercial lobster landings in Connecticut fell from more than 2.5 million pounds in 1995 to about 200,000 pounds in 2015. In Rhode Island, the catch fell from more than 5 million pounds in 1995 to less than 2.4 million pounds in 2015. In New York, the commercial lobster industry has virtually disappeared.

Led by Arnault Le Bris of the Gulf of Maine Research Institute, the scientists used advanced computer models to simulate the ecosystem under varying conditions. The results show that temperature change was the primary contributor to population changes, but conservation efforts made significant differences in how the lobster population responded.

Read the full story at the Ellsworth American

 

Protection of Atlantic corals up for debate, approval

January 29, 2018 — PORTLAND, Maine — A federal panel is revisiting a proposal to offer new protections to deep-sea corals in the Atlantic Ocean.

The New England Fishery Management Council has been working on coral protections in the waters off New England for several years. The council approved protections in the Gulf of Maine in June, but held off on voting on protections for an area south of Georges Bank so it could get more information.

The council is meeting to again consider southern protections on Tuesday. If approved, the council could send the complete plan on to the federal Department of Commerce for implementation.

Read the full story from the Associated Press at the New Haven Register

 

Study: Maine’s lobster population will drop but fishery ‘not doomed’

January 26, 2018 — The lobster population in the Gulf of Maine could decline by nearly two-thirds by 2050, according to a scientific study released this week.

As bad as that sounds, scientists and industry representatives say the demise of the most valuable single-species fishery in the country is unlikely.

“It doesn’t mean Maine’s lobster fishery is doomed,” said Andrew Pershing, chief scientific officer at Gulf of Maine Research Institute and a co-author of the study.

The predicted decline was included in the results of a study conducted by GMRI and other research groups about the effect of conservation measures on lobster fisheries in the Gulf of Maine and off the southern New England coast.

The lobster population could decline between 40 percent and 62 percent over the next 32 years, depending on how much waters continue to warm in the Gulf of Maine, researchers found. The total stock of lobster for the Gulf of Maine and Georges Bank is in the neighborhood of 300 million lobsters, according to the most recent stock assessment by Atlantic States Marine Fisheries Commission.

The study found that lobster conservation measures in Maine aimed at protecting reproductive females and oversize adult lobsters in general, which date back to the early 20th century, have helped amplify the temporary benefit of warming seas to the lobster population in the gulf, which is warming more quickly than 99.9 percent of the world’s oceans.

In comparison, the lack of similar measures in southern New England hurt the lobster population south of Cape Cod now that waters there have become too warm to help support the growth of juvenile lobsters.

“Maintaining measures to preserve large reproductive females can mitigate negative impacts of warming on the Gulf of Maine lobster fishery in future decades,” researchers wrote in the study, which was published Jan. 22 in the scientific journal Proceedings of the National Academy of Sciences.

If the gulf’s lobster population does drop by 40 or even 60 percent over the next 32 years, the decline will be more gradual than the boom that preceded it. At that decrease, the gulf’s average lobster populations would be “similar to those in the early 2000s,” GMRI officials said.

From 1997 through 2008, Maine’s annual harvests fluctuated between 47 million and 75 million pounds. It is only within the past 10 years, since Maine lobstermen harvested 64 million pounds in 2007, that statewide landings have doubled.

Read the full story at the Bangor Daily News

 

Facing a Dying Industry, Two Young New Hampshire Fishermen Head Out Anyway

January 25, 2018 — It’s a feeling many in today’s economy can relate to: starting out in a career is just harder than it used to be.

One group that’s very familiar with that idea is commercial fishermen. In New Hampshire, dozens of boats used to head out every morning to fish for cod and haddock. Today that number is down to just a handful.

For our series The Balance, which looks at the cost of living in New Hampshire, Jason Moon tells us about two young fishermen who, in spite of the odds, are trying to live a vision of an iconic New England profession.

It wasn’t always Zach Griggs’ plan to become a fisherman. Along the way, he tried other things, too.

“I went to community college for a year-and-a-half and I realized I don’t like book-work.” says Griggs. “I realized I like working.”

But more than just working, Griggs realized he liked this kind of work. The way you get paid for exactly what you catch, the way each day is different.

“The sun rises every day but none of them are the same,” says Griggs. “It’s like, every day you haul the nets, it’s not going to be the same thing as you hauled yesterday. When I did dry wall, I knew I had screw every day and a screw-gun ‘bzzz, bzzz, bzzz.’ Miserable.”

Griggs is 28, but he’s already spent about 8 years in the fishing industry.

About four months ago, he decided to make a bet on staying in for even longer. He took out a loan and bought a boat, the Bridget Leigh. It’s a 44-foot white fishing boat that Griggs knows well. He’s been a deckhand on it for the past 6 years.

It should be an exciting moment – striking out on his own like this. But sitting in his new captain’s chair, Griggs sounds deflated.

“This is about what it’s good for, right here, right now, without permits,” says Griggs, “Sitting on it, hanging out. That’s pretty much all it’s been doing.”

Turns out, being a New Hampshire fisherman isn’t what it used to be.

On a recent night at the Rye Harbor, I met with Griggs and a couple of friends onboard the Bridget Leigh to talk about the state of New Hampshire’s fishery.

One of those friends is Lucas Raymond. At 25 years old, Raymond is New Hampshire’s youngest commercial fisherman. And like Griggs, he can’t imagine doing anything else.

Read the full story at NHPR

 

Study: Warming Gulf of Maine endangering lobster stock

January 24, 2018 — Is the lobster boom on the decline in the Gulf of Maine because of warming waters? A newly released study by a Maine-based marine research group suggests that is the case.

The study, released Monday by the Gulf of Maine Research Institute, touched on many of the same climate issues that have left researchers and lobster stakeholders anxious about the future.

“In the Gulf of Maine, the lobster fishery is vulnerable to future temperature increases,” GMRI said in the statement released with the study. “The researchers’ population projections suggest that lobster productivity will decrease as temperatures continue to warm, but continued conservation efforts can mitigate the impacts of future warming.”

The study, compiled with the University of Maine and NOAA Fisheries, said the anticipated decline highlights the need for vigilant conservation within the Gulf of Maine lobster fishery, especially since scientists say the gulf’s waters are warming faster than 99 percent of the rest of the world’s oceans.

Researchers said they expect the lobster population to decline from recent highs — GMRI pegs the peak year at 2010, when it estimated the Gulf of Maine lobster stock contained 518 million lobsters — to levels more in keeping with traditional lobstering years.

It estimates the population could shrink to about 261 million lobsters in 2050.

“The 30-year outlook for the Gulf of Maine fishery looks positive if conservation practices continue,” GMRI said. “In their 30-year projection, the researchers anticipate average populations similar to those in the early 2000s.”

Beth Casoni, executive director of the Massachusetts Lobstermen’s Association, said lobster stock assessments in the Gulf of Maine have shown the annual settlement of young lobsters — when they transition from floating in open waters as plankton to settling on the bottom to begin the seven- to eight-year stretch it requires to mature — has declined from previous assessments.

Read the full story at the Gloucester Times

 

Research Concludes Maine Conservation Technique Helped Drive Lobster Population Boom

January 24, 2018 — Lobster conservation techniques pioneered by Maine fishermen helped drive a population boom that’s led to record landings this century. That’s the conclusion of new, peer-reviewed research published today.

The paper also finds that lobstermen in southern New England could have used the same techniques to prevent or at least slow the collapse of their fisheries — even in the face of climate change — but they didn’t.

Cape Elizabeth lobsterman Curt Brown has been hauling traps since he was a kid. He says he quickly learned that when he pulled up a female lobster, covered in eggs, he was looking at the fishery’s future.

Maine lobstermen throw back lobsters like these, which produce eggs at a high rate, but other lobstermen do not

“You get used to seeing lobsters and then you see a lobster with eggs and it’s whole new animal,” he says. The underside of the tail is just covered with eggs.”

Since 1917, Maine lobstermen like Brown have used a technique known as “V-notching”: when they found an egg-bearing female in their traps, they would clip a “V” into the end of its tail, and throw it back. The next time it turns up in someone’s trap, even if it’s not showing eggs, the harvester knows it’s a fertile female, and throws it back. Later, the lobstermen also pushed the Legislature to impose limits on the size of the lobster they can keep — because the biggest ones produce the most eggs.

“I use my measure right here, right on the measure, at the end of the measure, is a little tool in the shape of a ‘V,'” Brown says. “So you just grab the lobster underside of the tail just like that and it cuts a V-notch right in the tail. Quick, painless, throw her back in and let her do more of her job.”

And those fertile females have been doing that job very well in Maine. Since the 1980s, lobster abundance here has grown by more than 500 percent, with landings shooting up from fewer than 20 million pounds in 1985, to more than 120 million pounds in 2015 with a value of more than a half billion dollars.

Read the full story at WNPR

 

Gulf of Maine lobster population past its peak, study says, and a big drop is due

January 23, 2018 — The Gulf of Maine lobster population will shrink 40 to 62 percent over the next 30 years because of rising ocean temperatures, according to a study published Monday.

As the water temperature rises – the northwest Atlantic ocean is warming at three times the global average rate – the number of lobster eggs that survive their first year of life will decrease, and the number of small-bodied lobster predators that eat those that remain will increase. Those effects will cause the lobster population to fall through 2050, according to a study by researchers at the Gulf of Maine Research Institute, the University of Maine and the National Ocean and Atmospheric Administration.

Looking ahead 30 years, the researchers predict a lobster population “rewind” to the harvests documented in the early 2000s. In 2002, 6,800 license holders landed 63 million pounds of lobster valued at $210.9 million. By comparison, 5,660 license holders harvested 131 million pounds valued at $533.1 million in 2016.

“In our model, the Gulf of Maine started to cross over the optimal water temperature for lobster sometime in 2010, and the lobster population peaked three or four years ago,” said Andrew Pershing, GMRI’s chief scientific officer and one of the authors of the study. “We’ve seen this huge increase in landings, a huge economic boom, but we are coming off of that peak now, returning to a more traditional fishery.”

Industry leaders have been girding themselves for a decline in landings ever since the recent boom began. While not everybody believes the decline will happen that fast or fall so much, most lobstermen admit the impact that warming water has had on their fishery, said Dave Cousens, the president of the Maine Lobstermen’s Association. It drove up landings by pushing lobsters into the Gulf of Maine, and over time it will drive lobsters out to colder offshore waters or the Canadian Maritimes, he said.

Read the full story at the Portland Press Herald

 

New study: Industry conservation ethic proves critical to Gulf of Maine lobster fishery

January 22, 2018 — A new study, led by scientists at the Gulf of Maine Research Institute and colleagues at the University of Maine and NOAA, demonstrates how conservation practices championed by Maine lobstermen help make the lobster fishery resilient to climate change.

For generations, lobstermen in Maine have returned large lobsters to the sea and have designed a special way of marking egg-bearing lobsters to give them further protection. This conservation culture distinguishes the Gulf of Maine fishery from southern New England, where fishermen have not historically taken the same steps to preserve large, reproductive lobsters.

The study, funded by the National Science Foundation and published in Proceedings of the National Academy of Sciences (PNAS), shows how warming waters and contrasting conservation practices contributed to simultaneous record landings in the Gulf of Maine fishery and  collapse in southern New England.

Led by Dr. Arnault Le Bris, the research team used advanced computer models to simulate the ecosystem under varying conditions, allowing them to understand the relative impacts of warming waters, conservation efforts, and other variables. Their results show that, while temperature change was the primary contributor to population changes, conservation efforts made a key difference in population resiliency.

Impacts of warming

Over 30 years (1984-2014), ocean temperatures increased rapidly in both regions. Warming in both regions shifted optimal summer ocean temperatures northeast, causing the southern New England  population to decline and the Gulf of Maine population boom. The researchers estimate that, during this 30-year period, the Gulf of Maine population increased by 515%, while the southern New England population declined by 78%. Challenges associated with warmer temperatures include decreased survival of larval lobsters, increased incidence of shell disease, and increased predation.

Read the full story at PHYS.org