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Posts Tagged ‘kelp’

Photo: Melanie Stetson Freeman/CSM.
Workers with Bangs Island Mussels, a Maine-based aquaculture company, harvest multiple lines of kelp in Casco Bay.

Humans never stop having to make adjustments. Consider all the confusing updates to your phone, problems with your printer, and the like. You are always having to learn something new.

Similarly, businesses have always had to adjust to market changes, floodplain dwellers have had to move to higher ground, families attacked by invaders have had to move to other countries … the list goes on.

Meanwhile, in Maine, lobster fishermen are having to consider new sources of income.

Stephanie Hanes wrote at the Christian Science Monitor, “The landing dock of the Portland Fish Exchange is busy this afternoon, in a way that almost reminds David Townsend of when there were still groundfish to catch in Casco Bay, when this pier was piled with cod and haddock … back before the fisheries collapsed.

“Now Mr. Townsend waves down to Justin Papkee, who has maneuvered his boat up to the dock. Mr. Papkee is a lobsterman. But hours earlier, he and his crew harvested thousands of pounds of sugar kelp, hauling the seaweed onto his boat from the ropes where it had been growing, cutting off the leafy blades and stuffing them into half-ton potato sacks. …

” ‘We love the new business,’ says Mr. Townsend. ‘This is the thing of the future.’

“Briana Warner smiles when she hears this. This is a new tune for the dockworkers, who not long ago grumbled about how their lives had descended to this, landing ocean weeds. But as the boats keep coming in, their enthusiasm for her efforts has grown. …

“It is her company, Atlantic Sea Farms, that is buying all of it, part of an ambitious effort to revamp not only Maine’s working waterfront, but also the way the state is fighting, and adjusting to, climate change. …

“Ms. Warner says, ‘We are presenting a climate change adaptation tactic that also does no harm, and in fact does positive things. … It makes the ocean better. It makes our coastal ecosystems better. It makes our coastal economy better. And it makes the consumer healthier.’ …

“The story of seaweed here in Maine, and how it is evolving into what some are calling Maine’s new cash crop, is part of a global story. … But it is also intensely local. And this, climate activists say, makes it even more important for understanding how humans around the world might adjust to a quickly changing planet.

“While few researchers would discount the importance of sweeping climate actions by international organizations and countries, there is a growing sense that, at least in the short term, real change will come from variations of what is happening in the waters off the coast of Maine. These will be place-specific initiatives. They will be based on cooperation and unity, not only between humans – the environmentally minded businesswoman and the sometimes conservative fishermen – but also among people and nature: the carbon and the kelp and the restaurateurs. …

“ ‘There’s no one silver bullet,’ says Susie Arnold, a marine scientist at the Island Institute, a Maine nonprofit focused on preserving the state’s working waterfront. ‘It’s going to take everybody. And at this point, we’ve taken such a toll on the Earth that there are going to have to be trade-offs.’ …

“For generations, life in this sparsely populated, ruggedly proud Northeastern state has focused on the ocean. Although Maine’s coast is only about 228 miles from north to south, when you include the various bays and inlets, the state’s shoreline measures more than California’s, totaling some 3,478 miles. Studies show that more than 80% of the household income in some communities traces back to fisheries. …

“For a generation now, lobster has been king of Maine’s seafood industry. It forms the base of a billion-dollar-plus business in the state, which provides the vast majority of domestically caught lobster in the United States. … And the people who hoist the traps take pride in crafting their own stringent measures to protect the fishery. They have imposed regulations on everything. ….

‘Lobster fishermen are notoriously good stewards of our coastal ecosystems,’ says Jesse Baines [of Atlantic Sea Farms]. ‘But we all know that the seasons are more variable every year.’

“Yet the seasons are not just more variable, starting unpredictably later or earlier. On the water, they are also warmer.   

“ ‘The Gulf of Maine is one of the fastest bodies of warming water in the world,’ says Sebastian Belle, executive director of the Maine Aquaculture Association. ‘And frankly, it’s incredibly scary how fast it’s happening.’

“The reason, scientists say, is climate change. As humans release more greenhouse gases into the atmosphere, the air warms. Much of that heat is absorbed into the oceans. There are also ocean currents that some scientists believe are being disrupted. A shift in one particular circulation pattern has allowed warmer water coming up from the Gulf Stream to push away colder water coming down from Labrador, leaving warmer, saltier currents entering the Gulf of Maine. And that has prompted the lobster population to shift northward. …

“The warmer water has caused other species to migrate to the area, including the endangered right whale. Legal battles have erupted among the lobster industry, interest groups, and the federal government over protecting the mammal. Looking at all of this, economic development experts throughout the state are worried about the risk of so much of Maine’s economy being dependent on lobster. …

“Before she and her family moved to Maine, her husband’s native state, in 2013, Ms. Warner had spent nearly a decade as a U.S. Foreign Service economic development officer based in multiple African countries. There, she watched the struggles of individuals and communities working against forces far larger than themselves. And so she recognized what she was seeing in Maine.

“ ‘It’s just really devastating to see an industry that has taken such a leadership role in conservation and has no ability to stop the volatility because of the greater world’s usage of fossil fuels,’ she says. ‘No matter what the lobster fishery does, they can only control so much because the ocean is just warming.’

“The industry needed another way to make money, she realized – one that would be ecologically helpful instead of harmful. …

“The seaweed known as Saccharina latissima, or sugar kelp, is a yellowish brown alga that grows along rocky coastlines. It takes the shape of an elongated lasagna noodle, with crinkled edges, and can grow up to 16 feet long.

“It is high in a variety of nutrients, and also has a gelling capacity that makes it a useful ingredient for everything from cosmetics to ice cream to toothpaste. And like all plants, kelp absorbs carbon while giving off oxygen. …

“The idea of kelp as both a food source and an environmental solution is not new. Indigenous people in the Americas harvested kelp for generations. In Asia, it’s part of a multibillion-dollar seaweed farming industry.  

“But in the U.S., where far fewer people eat seaweed, there has been scant commercial interest in kelp farming until recently. … Although seaweed currently makes up only a small percentage of [the aquaculture] industry, it is the fastest-growing subsector, according to the National Oceanic and Atmospheric Administration. …

“ ‘The kelp is sucking carbon dioxide directly out of the water, and actually reducing the acidity of the water in its general vicinity,’ [says one kelp farmer]. ‘So if you put the kelp close enough to the mussels, we have measurable, significant evidence showing that the kelp halo effect helps the mussels grow bigger and faster.’ ”

More at the Monitor, here. No firewall.

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Too Many Urchins

Photo: Talia Herman/Guardian.
A purple sea urchin with roe inside.

In her graphic memoir of her childhood in 1970s China, Na Liu recalls a time that comrades were told to kill sparrows because they were eating crops. The leaders went too far because in eliminating the birds, they let insects take over, and famine followed.

In today’s story, the public is asked to eat the invasive purple sea urchins that are damaging California’s kelp forests. If we are wise, we’ll learn from others’ experience and stop before we have eaten them all. Right now, that’s a long time ahead.

Vivian Ho writes at the Guardian that purple sea urchins “have become a major headache for the Pacific west coast. Their population has exploded by 10,000% since 2014, with scientists blaming the decline of sea otter and starfish populations – two of the urchin’s natural predators.

“Hundreds of millions of purple sea urchins now blanket the coast from Baja to Alaska, where they have been devouring the region’s vital kelp forests, doing untold damage to the marine ecosystem in the process.In California, it is estimated that 95% of the kelp forests, which serve as both shelter and food to a wide range of marine life, has been decimated and replaced by so-called ‘urchin barrens‘ – vast carpets of spiked purple orbs along the ocean floor.

“That’s why marine biologists and chefs have teamed up to release a new predator into their natural environment: me. Or, to be exact, me and all of you. There’s been a push for years to get the public to eat more sea urchin as a way to help curb the population and recover the kelp forests.

“It shouldn’t have been a hard sell. Sea urchin, or uni in the sushi world, is considered a delicacy in the fine dining circles. ‘The two main descriptors I would use are sweet and briny, similar to an oyster, similar to a clam,’ said culinary scientist Ali Bouzari. … ‘The texture is very creamy. It’s very similar to room-temperature butter.’

“During the pandemic, however, fine dining has been harder to come by. And the retail costs, which range from $9 to $12 per urchin at your local fishmonger, isn’t something every home cook can justify.

“But what Bouzari, co-founder of culinary research and development company Pilot R&D, has been pushing for the last few years is that sea urchin cuisine doesn’t have to be particularly precious or expensive. You can have it served on a half shell, topped with espresso-cream whipped potatoes and caviar – as they do at Michelin-star restaurant SingleThread in Healdsburg – or you can sauté it with some onion, sausage and day-old rice and make a dirty rice, one of Bouzari’s favorite recipes. And anyone with access to the coast can have sea urchin dirty rice on a dirty rice budget. …

“[One day] I stood on the beach of Timber Cove in Jenner, California, waiting as Bouzari and his friend Justin Ang, a Pilot R&D product manager, paddled up to shore atop some surfboards. They had spent the morning spearfishing. … But you don’t need a wetsuit or fancy gear to harvest sea urchin, he explained. Anytime at low tide on the edges of a cove, urchin – an intertidal species – should become visible. …

“Sea urchins are essentially a ball of hard purple spikes containing five egg sacs, which is what we eat – in the culinary world, they’re described as the tongues, the roe, the uni. …

“The sea urchin came loose when I twisted it like a doorknob. The triumph of my first harvest overtook any lingering sensations of pain from gripping its prickly spines. Still, I’d recommend gloves.

“I had brought some salted sourdough toast from San Francisco, and Bouzari quickly scooped a fat, golden tongue out of the hardened purple spikes to lay on to the olive-oiled surface. I had enjoyed uni before at sushi restaurants, but never tasted anything quite like the briny creaminess of sea urchin fresh from the ocean, on toast warmed in the California sun. That one bite felt like a calm summer day, floating on a boat in the water. …

“Bouzari showed me a move where he cut the urchin in half elegantly so that you could use the shell as a bowl or a candle holder after removing the roe. I had not mastered that. Instead, I cut the urchin jagged down the middle, at times just using my hands to rip it apart, sending spines flying on to the floor and into my sink.”

Read more at the Guardian, here, about helping the environment by eating this delicacy.

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Otters!

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Photo: Isabelle Groc
Historical records show that otters were once abundant in California’s estuaries. Now they’re back — and bringing surprising benefits.

This is a story about America’s smallest marine mammals and how they are improving ecosystems.

Isabelle Groc reports at the Guardian, “When Brent Hughes started studying the seagrass beds of Elkhorn Slough, an estuary in Monterey Bay on California’s central coast, he was surprised by what he found. In this highly polluted estuary, excessive nutrients from agricultural runoff spur the growth of algae on seagrass leaves, which kills the plants. Yet in 2010, Hughes noticed that the seagrass beds were thriving. It did not make sense. …

“Hughes [a biologist at Sonoma State University] examined every possible factor, including water quality, temperature and changes in seagrass coverage over time, going back 50 years. He was not making any progress until he was approached by a boat captain named Yohn Gideon who had been running wildlife tours in the slough since 1995. Over the years, the captain had handed clickers to his passengers, asking them to count the sea otters they saw.

Hughes overlaid the captain’s sea otter counts with historical seagrass coverage data and realised the two graphs were almost perfectly in sync. When sea otter numbers went up, seagrass went up, too.

“ ‘You don’t see that very often in ecology. That was a eureka moment.’ …

“Sea otters may be North America’s smallest marine mammal, but they have a huge appetite. … When the otters first moved into the slough in the 1980s, they put their big appetites to work eating crabs. With fewer crabs to prey on them, the California sea hares – a sea slug – grew larger and became more abundant. The slugs fed on the algae growing on the seagrass, leaving the leaves healthy and clean. …

“Since the otters arrived in the slough, the seagrass has recovered and increased by more than 600% in the past three decades.

“Sea otters had already shown that they were capable of a large influence on the ecosystem. In the 1970s, biologist James Estes was conducting research in the Aleutian Islands in Alaska and noticed some areas where the seafloor was covered with sea urchins. As herbivores, urchins feed on kelp, and when their numbers are not kept in check by predators, no kelp remains. In contrast, in places where sea otters were present, kelp forests were thriving. …

“But the discovery that sea otters could also be important players in estuaries came as an ecological surprise. In fact, scientists had not even expected sea otters to survive in an estuary. … Since the otters were first recovering in kelp forests along the open coast, the scientists who studied the animals assumed that this was their primary habitat. When they started turning up in Elkhorn Slough in the 1980s, they thought that was an anomaly, failing to realise that they were in fact reoccupying old habitats. …

“Estuaries were not even considered in the US fish and wildlife service’s plan for the recovery of the sea otter in California, listed as threatened under the US Endangered Species Act. … In the past decade, the expansion of sea otters on the California coast has been curbed unexpectedly by the presence of the great white sharks. …

“Estuaries could provide otters with an important refuge from sharks and other unfavourable coast conditions, such as storms and warming events. …

“ ‘Once fully recovered, between a quarter and one third of the entire population in California could be accounted for by otters living in estuaries,’ [Tim Tinker, a wildlife biologist at the University of California, Santa Cruz,] says. …

“However, the benefits are not felt equally, especially among indigenous communities who rely on shellfish harvesting for food security.

“ ‘Sea otter recovery is different from the recovery of any other species because they have such disproportionally big effects on the ecosystem,’ Tinker says. ‘For most depleted species you are just worried about the conservation of the species but with sea otters, you are thinking how the entire ecosystem is going to change when they recover.’ ”

More.

Hat tip: Earle.

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wpdms_ev26188_fishers_island

Fishers Island is located at the eastern end of Long Island Sound. Long a summer enclave for the wealthy, it may soon become known for a seaweed farm in Fishers Island Sound.

When my three-year-old grandchild was upset because the seaweed snacks were all gone, I knew the world had changed. Seaweed snacks? Yes, indeed. Seaweed has become big in the US. It’s not considered an exotic food anymore.

At the Connecticut newspaper the Day, Joe Wojtas wrote recently about one of the many entrepreneurs moving into seaweed.

“A local man is seeking approval from state and local agencies to run a sugar kelp farm in Fishers Island Sound about one mile southeast of Enders Island.

“Thomas Cooke of LionMind Ventures LLC is seeking a permit from the state Department of Energy and Environmental Protection to install up to 10 long lines, each 500 feet long and anchored at each end and in the middle. The kelp seeds are embedded in the ropes when they are put out in the water and then harvested six months later after the plants have grown to 12 feet or more. Cooke said the work will begin in late October and end in May, which means it will not occur during the busy recreational boating season in Fishers Island Sound. …

“Cooke, who now lives on Masons Island and is an attorney, director for a professional choral group and the former Simsbury town administrator, … said he learned about kelp farming a few years ago, when he heard a program on the popular TED Talks series about a New Haven-based organization called Greenwave and its executive director, Bren Smith, who farms kelp in the Sound.

“ ‘It’s really good for the Sound,’ Cooke said about kelp farming. ‘It removes nitrogen and carbon dioxide and leaves a much healthier body of water.’ …

“The uses for nutrient-filled kelp include food — growers like to call it sea greens and not seaweed — cosmetics and fertilizers, just to name a few. Cooke said Greenwave works with kelp farmers to provide seed, find buyers and provide technical advice.

Everyone says it’s the new kale but I think it tastes better,’ he said.

More at the Day, here. I blogged about a Rhode Island kelp farmer here.

Photo: NOAA Fisheries
Here’s what sugar kelp looks like. There are different kinds of kelp, but this is the kind mentioned in the story.

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Photo: Bob Plain

I do love the inventiveness of entrepreneurs. A friend of Suzanne and Erik’s is an inventive entrepreneur — an oyster entrepreneur, to be specific. Since oysters are a seasonal crop, he looked for something that might become his winter crop.

Bob Plain’s Narragansett Bay Blog has the story on Jules Opton-Himmel, RI’s first kelp farmer.

“Kelp, you may or may not have heard, is the next super food. It’s nutritious, sustainable and ecologically beneficial,” writes Plain.

He continues with a quote from a recent New Yorker article by Dana Goodyear: ” ‘Seaweed, which requires neither fresh water nor fertilizer, is one of the world’s most sustainable and nutritious crops. It absorbs dissolved nitrogen, phosphorous, and carbon dioxide directly from the sea — its footprint is negative — and proliferates at a terrific rate.’ …

“Coincidentally – and quite auspiciously – just as the blockbuster New Yorker article hit the newsstands, Opton-Himmel was gearing up to introduce kelp farming to Rhode Island. …

“Farm-raised kelp is grown on a longline – a submersible thick rope, held in place by anchors and buoys, that is used to hold in place seafood harvesting equipment. A thin string of kelp spores is wrapped around the longline, and the kelp grows toward the bottom. Opton-Himmel, with the help of Scott Lindell and David Bailey from the Marine Biological Laboratory in Woods Hole, Mass, planted 1,000 feet. …

“Unlike oysters, which grow in the warmer months, kelp only grows when it’s cold. That means it could prove an off-season bumper crop for otherwise summertime-only seafood harvesters. Walrus and Carpenter downsizes from 7 to 3 employees in the winter, Opton-Himmel said, and kelp could help him keep the other four on the payroll all year long.

“ ‘I’d love to keep all 6 on year-round,’ Opton-Himmel said.”

More here.

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The radio show Living on Earth (LOE) reported recently on work to restore seaweeds that are a key part of the ecosystem.

From the LOE website: “Ripped from the seafloor by strong swells, massive amounts of kelp recently washed ashore in southern California. But the uprooted algae may actually be a sign of successful kelp restoration efforts. Marine biologist Nancy Caruso discusses the fragile ecosystem and how she and a community are helping to rebuild the majestic kelp forests.”

Radio host Steve Curwood interviewed Caruso. She recounts how she began 12 years ago with a group of students and volunteers “to restore the kelp forests off of Orange County’s coast.”

After a storm, she says, big holes get ripped in the forest of kelp, often 10 feet high. Then “new life can grow from the bottom up, and so if we see this happen, which we’re seeing right now, the kelp returns immediately after this event, then we know that our restoration efforts are successful, and after 30 years of our local ecosystem not having healthy kelp forests, we can rest assured that it’s now restored.”

To Curwood’s question about how restoration is done, Caruso answers, “It was actually quite an effort because I had the help of 5,000 students from ages 11 to 18 as well as 250 skilled volunteer divers, and we planted this kelp in 15 different areas in Orange County. There’s a spot down in Dana Point. It’s the only kelp forest that was left in Orange County so we would collect the reproductive blades from those kelp plants, and I would take them into the classrooms for the students to clean them and we would actually stress them out overnight. We would leave them out of water in the refrigerator, kind covered with paper towels, and then the next morning we would put them back in the ice-cold seawater and the kelp blade would release millions of spores” that would then be raised in nurseries and returned to the ocean.

“All those animals that get washed up on the beach inside the wrangled tangled kelp become a food source for shorebirds that live along our coast.”

More from Living on Earth here. For more on the importance of seaweed, see also Derrick Z. Jackson’s article in the Boston Sunday Globe: “Eelgrass Could Save the Planet.”

Photo: NOAA’s National Ocean Service
Kelp forests can be seen along much of the west coast of North America.

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Someone has finally recognized seaweed for the artistic creation it is.

That someone is Josie Iselin, whose book An Ocean Garden: The Secret Life of Seaweed was reviewed by Dana Jennings in the NY Times Science section Tuesday.

Jennings begins, “The secret to finding unsuspected beauty, artists and naturalists will tell you, is in knowing how to slow down and really look. The writer and photographer Josie Iselin certainly knows how to do that, as she shows in her beguiling new book, An Ocean Garden.

“In her introduction Ms. Iselin … writes, ‘I fell in love with seaweed at the kitchen counter.’ (She would bring back samples and study them there.) And it vexes her that others don’t share in her tidal pool crush. …

“The 100 color photographs here, though, just might convince some people …  The book focuses on seaweeds found in Maine and California, both states she has lived in; the species names tickle the tongue in the same way that the seaweeds themselves can tingle bare feet: knotweed and bladderwrack, bull kelp and green scrap, pepper dulse and sugar kelp, Turkish towel and Irish moss.” Read more about the book, here.

We’re headed to the beach this weekend with John and his little ones. Maybe we will be able to identify some seaweeds there.

Photos: Josie Iselin
Clockwise from top left, seaweeds from Josie Iselin’s new book: Macrocystis, Ulva lobata, Calliarthron tuberculosum, Egregia menziesii, Gloiosiphonia verticillaris and coralline algae.

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