Saving Seafood

Japanese Animals Are Still Washing Up in America After The 2011 Tsunami

Plastics and metals have made it much easier for invasive species to raft across oceans.

September 29, 2017 — On March 11, 2011, an unprecedentedly powerful earthquake struck the Tōhoku region of Japan. It destroyed hundreds of thousands of buildings, wrecked the Fukushima Daiichi nuclear plant, created a tsunami that reached 40 meters in height, and shifted the entire planet a few inches on its axis. But among these catastrophic consequences, there were also subtler ones. For example, the tsunami inundated a small blue-and-white fishing boat called the Sai-shou-maru, ripping it from its moorings and casting it out to sea.

The boat drifted eastward through the Pacific, never capsizing. Then, on March 22, 2013, a couple weeks after the two-year anniversary of the quake, it washed ashore on Long Beach, Washington. Its hull was encrusted with seaweed and barnacles, and one of its compartments was full of water. And living in that water were five striped beakfish. The fish were youngsters, just four inches long. They had probably been swept into the boat as larvae, and spent their entire lives growing up within this ersatz aquarium. For two years, the boat was their entire world.

Four of those fish were euthanized by the Washington Department of Fish and Wildlife, but the fifth—now known as the “tsunami fish” was relocated to Oregon’s Seaside Aquarium. Its story astonished John Chapman, an ecologist at Oregon State University who studies aquatic invasive species. Somehow, this coastal species had endured a two-year, 4,000-mile voyage across the open ocean, in the tiniest of living spaces. “We said this couldn’t happen,” Chapman told OregonLive. “And nature is like: Oh yes it can.”

Of late, nature has been saying that to Chapman a lot.

In the last five years, he and his colleagues have documented 634 pieces of debris that were swept away by the Tōhoku tsunami and eventually washed up on the coasts of North America. And it hasn’t stopped coming yet. Between them, these bits of ocean-hopping junk carried 289 species that are typically found along Japanese coasts—a vast horde of sponges, sea stars, sea anemones, mussels, limpets, barnacles, and fish.

Read the full story at The Atlantic

What’s best weapon for battling species invading California waters? Data

August 21, 2017 — There’s an invasion plaguing the coastal waters of Southern California.

Waves of tiny interlopers spark havoc at fisheries, clog municipal water pipes and frustrate boaters who must dislodge buckets of sea crud.

They’ve altered our coastal regions’ ecosystems, endangered native fish and birthed such nasty problems as “swimmer’s itch.”

Accelerated in recent decades by international trade, invasive sea creatures have hitchhiked here in and alongside massive cargo vessels from around the globe.

Local officials admit they often don’t know enough about these oft-destructive invaders to halt their environmental takeovers or truly know to what extent the strategies they’ve launched against them are actually working.

But experts from such prestigious organizations as the Smithsonian Environment Research Center have vowed to gather the intelligence needed to rescue native species by studying the incoming hordes, comparing the myriad areas they’ve infiltrated and assessing whether anti-invasive methods and regulations already in place are effective.

“We still don’t know enough about these species,” said Brianna Tracy, a research biologist for the center, which has launched four years of monitoring of the waters along the nation’s largest seaport, the twin Long Beach and Los Angeles cargo complexes.

Read the full story at the Press-Telegram

The Unexpected Tastiness of the Green Crab

August 10, 2017 — Maine’s problem with the invasive European green crab (Carcinus maenas) is not a new one, nor is the idea of finding a commercial use for them. It’s been a tough go for a long time; mostly because it has not been easy to find a market that will pay enough to make it worthwhile for a fisherman to gear up and fish a gang of traps. Recently though, there is a push to make green crabs attractive as a menu item, and I am glad to write that that there is a beam of light sneaking in through that cloudy scenario. The reason? Green crabs can be downright delicious.

To be more specific, we’re talking about soft-shelled green crab, similar to what you’d find with blue crabs down in the mid-Atlantic. Work led by Marissa McMahan, a Georgetown, Maine native and a PhD. candidate at Northeastern University, has taken this product further than anyone else in the state. Since she comes from a fishing family, her scientific and industry connections have been helpful, and the results to date have been quite tasty.

Her own introduction into the topic came courtesy of Jonathan Taggart, also a Georgetown citizen. He discovered fried green crabs at a restaurant in Venice, Italy, and brought the idea to Marissa. Venice is the center of the Italian soft-shell crab trade, and they have a very closely-related species of green crab, Carcinus estuarii. A key in the Italian industry is that Venetian fishermen have identified visible indicators that precede shedding – a fisherman can look at an individual crab and know to a fine degree how soon that crab will molt. This key step has been known for blue crabs in the U.S. for many years, but is only now being understood for green crabs.

Read the full story at NOAA Sea Grant

Federal Report Calls For $275 Million To Stop Asian Carp

August 8, 2017 — The U.S. Army Corps of Engineers has proposed spending $275 million to upgrade defenses against an invading force. The enemy? A fish. Specifically, Asian carp that are threatening to break through to the Great Lakes.

In June, a live Asian silver carp was caught in the Illinois Waterway just 9 miles from Lake Michigan. Scientists fear that if the voracious carp establish themselves in the Great Lakes, they could devastate the region’s $7 billion fishing industry.

The Corps of Engineers wants to upgrade the Brandon Road Lock and Dam near Joliet, Ill., on the Des Plaines River. The waterway is a link between Lake Michigan and the Mississippi River, where Asian carp are already a big problem. The Associated Press writes, “The Brandon Road complex is considered a bottleneck where defenses could be strengthened against fish swimming upstream toward openings to the lake at Chicago.”

Read the full story at New England Public Radio

Scandinavian biologists see threat in crossbreeding by American, European lobsters

June 7, 2017 — Scandinavian biologists say American and European lobsters are crossbreeding and their offspring can survive in European waters, but it is too early to tell if the hybrids can reproduce.

Susanne Eriksson of the University of Gothenberg in Sweden and Ann-Lisbeth Agnalt of the Institute of Marine Research in Norway presented their findings on the threat that American lobsters found in the northeast Atlantic Ocean pose to their smaller European cousins Tuesday during the second day of the International Conference and Workshop on Lobster Biology & Management in Portland.

“American scientists said your lobsters couldn’t survive in European waters, but we have proof they are not only surviving, but competing with the European lobster for food, shelter and mates,” Eriksson said. “They are crossbreeding, the hybrid eggs are hatching, and the larvae are surviving in our tanks, and in our oceans. We don’t know if they can reproduce yet, that’s a year or two away, but we know the males can produce sperm.”

Last year, Sweden asked the European Union to list the American lobster as an invasive species after scientists there found evidence of crossbreeding. The EU bans the import of invasive species, so a listing would have put an end to the $200 million annual export business. The evidence persuaded the forum of EU scientists who study alien species to support a ban, but not the EU politicians who must approve such a listing.

The EU said it might one day explore other protective measures that would not be so disruptive to trade if Sweden returns with further proof of an invasion.

That’s why Scandinavia is continuing to look at how American-European hybrids will fare in the northeast Atlantic, especially once they hit sexual maturity.

Read the full story at The Portland Press Herald 

Rep. Moulton: Sweden’s lobster science flawed

August 15, 2016 — Sweden’s response to a highly critical analysis of its rationale for banning the export of American lobsters into the European Union still falls far short of a credible scientific standard, U.S. Rep. Seth Moulton said Friday.

“The science they are citing is flawed,” Moulton said following a congressional briefing by NOAA Fisheries on the international contretemps. “They’ve done nothing to back up their data. And if they can’t back up their data, then there’s something else going on.”

In March, Sweden petitioned the remainder of the European Union to list American lobsters as an invasive species, claiming the increased presence of the American crustaceans in Swedish waters during the past three decades is imperiling its indigenous lobsters.

If successful, the invasive species listing would lead to a ban on U.S. and Canadian live lobster exports to Sweden and the rest of the 28-member European Union. The U.S. exports about $150 million worth of live lobsters to the EU each year — the vast majority landed in Maine and Massachusetts, where Gloucester is the top port — and Canada exports about $75 million.

The Swedish risk assessment, which cites the adverse potential of disease and cross-breeding between the indigenous lobsters and their American cousins across the pond, was like a starting pistol, spurring both U.S. and Canadian governmental agencies, trade officials and lobster stakeholders into action.

Read the full story at the Gloucester Times

Legislators Consider Changes to Ballast Water Regulations

July 6, 2016 — The following is excerpted from the television program Chicago Tonight, which is hosted by Elizabeth Brackett and aired on WTTW in Chicago:

Elizabeth Brackett: Ocean-going ships that bring their cargo into Great Lakes ports, like the Federal Biscay, unloading foreign steel at the port of Indiana’s Burns Harbor, are regulated by both the U.S. Coast Guard and the federal Environmental Protection Agency’s Clean Water Act.

In 2006, the Coast Guard began requiring those ships to dump the ballast water they picked up in foreign ports and pick up sea water.

That ballast water exchange must be made at least 200 nautical miles from land, in water that is 2,000 meters deep to prevent invasive species from being brought in with the new ballast water.

Shippers say those Coast Guard regulations have kept invasive species out of the Great Lakes.

James Weakley, Lake Carriers’ Association: The door was closed in 2006 when the Coast Guard stopped allowing vessels from the ocean to come in with ballast water that wasn’t managed. Not coincidentally, in 2007 the last invasive species was discovered, the bloody red shrimp, in the Great Lakes.

Brackett: Ocean-going vessels that sail the Great Lakes, called Salties, have worked on developing ballast water treatment systems. The Federal Biscay is the first ship on the Great Lakes to bring a ballast water treatment system online. Located in the bowels of the ship over the ballast water tanks, these pumps will push out the old ballast water and bring in the ocean water when the ship is at sea.

Ships, like the 678-foot Wilfred Sykes, that never sail beyond the Great Lakes, are called Lakers.

The Lakers have always been a bit concerned that they’ve gotten blamed for bringing in these invasive species, when you say primarily it’s been the Salties.

Weakley: Actually it’s exclusively been the Salties. We never leave the Great Lakes. Our ships are physically too big to get beyond the Welland Canal so we’ve been in the forefront of calling attention to the problem.

Brackett: Both the Salties and the Lakers agree that the proposed legislation called the Vessel Incidental Discharge Act, which would exempt ballast water from the Clean Water Act and put the Coast Guard in charge, is needed.

Weakley: Currently we have a patchwork quilt of regulations, more than two dozen states have requirements on top of the two federal agencies, and what we’re looking to do is have a piece of legislation that has a single national standard with a single federal agency in charge.

Read the full transcript at WTTW

Invasive species? Try new culinary treat

March 3, 2016 — It’s not easy being green . . . crabs, that is. Then, how could it be?

The green crabs are the poster child of invasive seafood species, prompting their fair share of hand-wringing and vitriol — not to mention legislative action here in Massachusetts to figure out ways to mitigate the far-flung eco-damage they’ve foisted on animal and plant species throughout the state’s Great Salt Marsh that stretches more than 20,000 acres from Cape Ann to the New Hampshire border.

Many people talk about the green crabs, but Spencer Montgomery is actually trying to do something about them. In short, he’d like restaurants and large-scale institutional food purveyors to start using them in recipes and for the consuming public to start eating them. 

Montgomery, a seafood buyer for Woburn-based food vendor Dole & Bailey, is trying to build up a consuming market for the small, ubiquitous crabs, even if he has to do it one chef and harvester at a time.

“There’s really no reason we shouldn’t be selling hundreds of pounds of the green crabs each week,” Montgomery said. “It would be better to get them out of the water to help protect our other seafood species and the marine environment, but they’re also a real alternative for chefs looking to use crabs and crab flavors in different ways and at a far lower price.”

Montgomery said he recently filled orders for about 70 pounds of the crabs from three New England restaurants and now he’s looking to build up his network of harvesters to handle the future demand he envisions from restaurants, hotels, universities and hospitals.

Read the full story at Gloucester Daily Times

Could invasive lionfish end up in Chesapeake Bay?

December 29, 2015 — Few fish are as lovely as the lionfish. Few are as venomous.

A frilly, colorful native of the clear tropical waters and reefs of the South Pacific and Indian oceans, the lionfish has been a favorite of aquarium hobbyists for years.

In the Atlantic, however, it was unknown.

Then in the 1980s genetic researchers believe a handful of hobbyists in Florida, perhaps thinking it a kindness, released their aquarium pets into the wild ocean.

At that point, the lionfish proved they aren’t just lovely and venomous — they also breed like rabbits on Viagra. Ravenous eaters, they gobble up any smaller fish they spot and easily displace native species. And because nothing in this part of the Atlantic recognizes them as prey, their population has exploded into a serious and unfortunate marine invasion.

“It’s gotten really bad,” said Richard Brill, fishery biologist at the Virginia Institute of Marine Science in Gloucester Point.

“There’ve been some efforts in Florida and some parts of the Caribbean to get people to eat them. And there’s been some efforts — and this is pretty crazy — but groups of recreational spear fishermen have been spearing them and then feeding what they catch to sharks, trying to convince the local shark population to eat these things.”

The hardy little invaders have established year-round populations from the Gulf of Mexico to the Outer Banks. They’ve been spotted in warmer months as far north as Massachusetts, although they can’t survive the northern winters.

Read the full story at the Hampton Roads Daily Press

 

NORTH CAROLINA: Lesser-known catches taking center spot

November 1, 2015 — It’s been an upstream swim, but thanks to curious consumers, clever marketing and a widening understanding of environmental realities, North Carolinians are gradually weaning themselves from a steady diet of top-shelf but increasingly restricted fish like tuna, grouper and snapper. In their wake, previously disregarded or invasive species such as triggerfish and lion fish have taken center spot on our collective plates, and a shift to these lesser-known catch will likely continue as fishermen, fishmongers and fish fans adjust to availability.

“With all the regulations out there put on top of the North Carolina fishermen, there’s got to be some type of diversity, some other type of catch to help them make their income,” said John Aydlett, a seafood marketing specialist with the N.C. Department of Agriculture. “And by diversifying the species, it helps them spread out their season.”

Read the full story at Star News Online