Saving Seafood

CONNECTICUT: New law looks to bring invasive species out of Long Island Sound and onto your dinner plate

October 2, 2025 — A number of new laws take effect today, including one that helps cut down on invasive species in Long Island Sound.

The goal is to help get invasive species out of Long Island Sound and onto your dinner plate.

James Beard Award Winner David Standridge runs two restaurants in Mystic, The Shipwright’s Daughter and Mystic Fish Camp.

Standridge uses hundreds of pounds of green crab, an invasive species, in his menu items. There are thousands of green crabs in Long Island Sound that live in shallow, rocky water close to land.

Read the full article at WFSB

ALASKA: Invasive green crabs reach Alaska, threatening fisheries

November 9, 2024 — The invasive European Green Crabs that have wreaked havoc on clam fisheries in Maine and the West Coast have now reached Alaska, where they could threaten subsistence, personal use, and commercial fisheries, including salmon.

“I worry about the salmonids,” says Tammy Davis, Invasive Species Program coordinator at the Alaska Dept. of Fish & Game (ADF&G). “I don’t have any evidence that they are competing for food at certain life stages, but the green crabs tear up the eelgrass that provides vital habitat for juvenile salmon and their prey, and in an already stressed ecosystem, having another stressor can affect the whole food web.”

So far, the green crabs are far less abundant than they are in Washington State, but Davis notes that Southeast Alaska has the kind of real estate green crabs like. “In Southeast Alaska, we have an estimated 19,000 miles of coastline and much of it is suitable habitat for green crabs.” She adds that many of the islands and passages of the Southeast archipelago have estuaries with eelgrass meadows protected from heavy surf, providing food and protection for green crabs.

Read the full article at the National Fisherman

MAINE: Researchers seek statewide changes to save clam fishery from climate-driven collapse

January 30, 2023 — The Harraseeket River recedes slowly but steadily around Chad Coffin’s metal skiff, until the boat is beached on a partly exposed mudflat. Coffin and his daughter, Bailey Pennell, are already out of the skiff, rakes in hand and rubber boots sinking deep into the gray-brown muck.

They begin to dig — but not for soft-shell clams, also known as steamers, belly clams or Ipswich clams, a prized Maine commodity that Coffin has harvested here in Freeport for decades. Instead, he and Pennell are scrounging for quahogs, or hard clams. They fetch a lower price, but the part of these flats where any soft-shells might be found is closed to harvest after a recent rain.

“This used to be all clams when I started clamming,” Coffin said. “I would have been able to dig right there, where the mud’s showing already. And now we can’t. There’s nothing there.”

This is becoming a typical struggle for some Maine clammers. Though the soft-shell fishery is typically Maine’s second-most valuable after lobster, statewide landings for the clams are near all-time lows — down from close to 40 million pounds a year in the 1970s to fewer than 10 million pounds a year for most of the past decade.

Coffin and some researchers are confident they know the main reason: green crabs. This invasive species eats clams voraciously, and warming waters are causing the crabs’ population to explode.

“Climate change is just that piece of dynamite that’s been thrown into that room,” said Brian Beal, a professor of ecology and longtime clam researcher with the University of Maine at Machias. “That has just changed everything.”

Beal and Coffin are among the clammers, scientists and other observers who believe the problems facing the fishery are clear. But the solutions they’re calling for have been slow to gain traction at the state level.

Read the full article at The Maine Monitor

Green crabs have already invaded Washington’s shorelines. Now they’re heading to Alaska.

September 7, 2022 — The first signs of the Alaskan invasion were discovered by an intern.

In July, a young woman walking the shoreline of the Metlakatla Indian Community during an internship with the National Oceanic and Atmospheric Administration found a shell of a known menace in the U.S. — the European green crab.

Two more were soon discovered. It was a day many had been dreading for years.

“We always knew we were eventually going to see evidence of green crab,” said Dustin Winter, a member of the Metlakatla Indian Community and the program director of its fish and wildlife department. “I didn’t think it was going to happen so quickly.”

Within a month and half, more than 80 live green crabs had been trapped along the Metlakatla shoreline, Winter said, making the community ground zero in the fight against the species in Alaska, though it’s possible other areas of Alaska have been colonized already.

The green crab is a notorious invasive species that has reshaped U.S. ecosystems and hammered East Coast commercial fisheries for decades. The discovery of the species in Alaska represents a profound risk in a state that accounts for about 60% of the nation’s seafood harvest.

They’re also almost impossible to remove. Nowhere in the world have green crabs been eradicated after they’ve established a population, scientists say. The discovery, which experts say is likely tied to warming waters due to climate change, threatens Alaskan economies, ecosystems and longstanding ways of life.

Read the full article at NBC News

Volunteers on watch for invasive crab that could threaten Southeast Alaska fisheries

July 19, 2021 — The European green crab might be small, but it can destroy vital habitats for animals all along the food chain. It’s already costing New England shellfisheries million of dollars.

In July 2020, green crab were found in Haida Gwaii, the closest they’ve ever been to Alaska. With the help of volunteers, the Alaska Department of Fish and Game hopes to stay one step ahead of the invasive species.

At low tide at Sandy Beach in Petersburg, Sunny Rice and a group of volunteers walked toward a crab trap — on the lookout for European green crab.

Green crab are small but mighty, measuring around 3 or 4 inches wide. Their shells are a dark, greenish-brown shell with yellow spots, with five triangular points on either side of the eyes.

To check whether the crabs have made it this far north, the Alaska Department of Fish and Game has asked volunteer groups to set up traps all over Southeast. Rice is with the Alaska Sea Grant Marine Advisory Program and wanted to get involved. She and a group of high school students with the Petersburg Indian Association’s natural resource management program set six traps at Sandy Beach and two at Hammer Slough.

Read the full story at KTOO

Why some Maine coastal communities are up in arms about aquaculture

December 10, 2018 — From oyster farms to cultivated seaweed and farm-raised salmon, aquaculture is often described as essential to the economic future of Maine’s fisheries in the face of a changing ecosystem. Warming waters from climate change are pushing lobster farther Down East and have shut down the shrimp fishery, and threats such as ocean acidification and invasive green crabs are harming Maine’s natural fisheries.

But opposition to several proposed projects suggests the hardest part of getting into aquaculture might be getting past the neighbors. All along the coast, neighbors argue that pending aquaculture ventures will create too much noise, use too much energy, attract too many birds and obstruct their opportunities for boating or lobstering. One questioned whether an oyster farm would make it hard for deer to swim from one point of land to another.

In Belfast, abutters to the land where Nordic Aquafarms hopes to put in a giant land-based farm to raise salmon have filed a lawsuit against the city, which they say hastily and secretly approved a zoning change the company needed to move forward.

In Brunswick, opponents of a proposed 40-acre oyster farm have hired not just attorneys, but a public relations expert, Crystal Canney, in the hopes of persuading the Department of Marine Resources not to approve the lease.

Read the full story at the Portland Press Herald

Researchers Find Bright Sides to Some Invasive Species

October 16, 2o18 — Off the shores of Newfoundland, Canada, an ecosystem is unraveling at the hands (or pincers) of an invasive crab.

Some 1,500 kilometers (930 miles) to the south, the same invasive crab — the European green crab — is helping New England marshes rebuild.

Both cases are featured in a new study that shows how the impacts of these alien invaders are not always straightforward.

Around the world, invasive species are a major threat to many coastal ecosystems and the benefits they provide, from food to clean water. Attitudes among scientists are evolving, however, as more research demonstrates that they occasionally carry a hidden upside.

“It’s complicated,” said Christina Simkanin, a biologist at the Smithsonian Environmental Research Center, “which isn’t a super-satisfying answer if you want a direct, should we keep it or should we not? But it’s the reality.”

Simkanin co-authored a new study showing that on the whole, coastal ecosystems store more carbon when they are overrun by invasive species.

Take the contradictory case of the European green crab. These invaders were first spotted in Newfoundland in 2007. Since then, they have devastated eelgrass habitats, digging up native vegetation as they burrow for shelter or dig for prey. Eelgrass is down 50 percent in places the crabs have moved into. Some sites have suffered total collapse.

That’s been devastating for fish that spend their juvenile days among the seagrass. Where the invasive crabs have moved in, the total weight of fish is down tenfold.

The loss of eelgrass also means these underwater meadows soak up less planet-warming carbon dioxide from the atmosphere.

In Cape Cod, Massachusetts, the same crab is having the opposite impact.

Off the coast of New England, fishermen have caught too many striped bass and blue crabs. These species used to keep native crab populations in check. Without predators to hold them back, native crabs are devouring the marshes.

Read the full story at VOA News

Maine nonprofit awarded NOAA grant to develop green crab market

September 19, 2018 — The National Oceanic and Atmospheric Administration’s Saltonstall-Kennedy Grant Program has given a grant of USD 267,440 (EUR 229,165) to a Maine, U.S.A.-based nonprofit Manomet in order to work on creating a fishery for invasive European green crabs.

The grant will allow Manomet to expand its project on creating a new economic opportunity out of soft-shell green crabs in New England. The green crab, a species that is invasive to New England, has been present for more than a hundred years and has recently expanded in numbers to the point it is putting pressure on local species.

That pressure has contributed to record low landings of caught and farmed mussels, and also threatens Maine’s softshell clam industry.

Manomet has already launched efforts to galvanize efforts on commercializing green crabs. On 6 and 7 June, the organization hosted a “Green Crab Working Summit” in Portland, Maine, to bring together various experts to discuss commercialization of the species.

Read the full story at Seafood Source

 

Filmmaker documents ravages of green crabs

September 12, 2018 — More than a year ago, Gloucester filmmaker Nubar Alexanian laid out his airtight case against the rapacious European green crabs for Bruce Tarr and the incredulous state lawmaker had a suitable response:

“There’s a horror movie happening in my district and I didn’t even know about it,” Tarr told Alexanian.

As Alexanian’s new documentary short film, “Recipe For Disaster,” makes clear, the call is coming from inside the Great Marsh, which stretches from Gloucester to the New Hampshire border.

“I live on the marsh here,” Alexanian said Tuesday at the Walker Creek Media studio adjacent to his West Gloucester home. “I fly-fish and fish for striped bass here all season long. I know this marsh really well. Last June, when I first heard about the green crab problem, it was pretty shocking to me. So I just started shooting.”

The nationally honored filmmaker and photographer, with a catalog of cinema and books to his credit, set out to chronicle the extent of the green crabs’ largely unabated invasion into the coastal waters near his home and beyond. And what Alexanian found astounded him.

“In the film, we say there are millions and millions of the green crabs here already,” Alexanian said. “Now I would say it’s billions and billions.”

Alexanian put the finishing touches on the final edit around midnight Monday and only a few audio tweaks remain before the film is set to be screened next Tuesday, Sept. 18, at Cape Ann Cinema & Stage on Main Street in Gloucester’s West End.

Read the full story at the Gloucester Daily Times