URI Archives - Saving Seafood

Warming R.I. marine waters force iconic species out, disrupt catch limits

August 9, 2021 — For generations, winter flounder was one of the most important fish in Rhode Island waters. Longtime recreational fisherman Rich Hittinger recalled taking his kids fishing in the 1980s, dropping anchor, letting their lines sink to the bottom, waiting about half an hour and then filling their fishing cooler with the oval-shaped, right-eyed flatfish.

Now, four decades later, once-abundant winter flounder is difficult to find. The harvesting or possession of the fish is prohibited in much of Narragansett Bay and in Point Judith and Potter ponds. Anglers must return the ones they accidentally catch to the sea.

Overfishing is easily blamed, and the industry certainly bears responsibility, as does consumer demand. But winter flounder’s local extinction isn’t simply the result of overfishing. Sure, it played a factor, but the reasons are complicated, from habitat loss, pollution and energy production — i.e., the former Brayton Point Power Station in Somerset, Mass., pre-cooling towers, when the since-shuttered facility took in about a billion gallons of water daily from Mount Hope Bay and discharged it at more than 90 degrees Fahrenheit.

Read the full story at The Westerly Sun

Rhode Island Oyster Farmer Leads the Way in Aquaculture

September 25, 2020 — Nearly 20 years ago when Perry Raso leased a 1-acre piece of Potter Pond in South County to farm oysters, aquaculture was in its infancy in the Ocean State.

Raso, then in his early 20s, was only the 15th person to obtain a lease from the state and called himself a stockholder in the pond where he spent part of every day.

Today, the entrepreneurial owner of the Matunuck Oyster Farm and the Matunuck Oyster Bar nurtures 16 million oysters in different stages of growth on 7 acres in the saltwater estuary a stone’s throw from the Atlantic Ocean.

His farm is now one of 70 similar aquaculture operations across the state.

The farmed oysters mature slowly under about 4 feet of water in polyethylene bags that are open to the sea at one end of the pond.

The oysters extract algae from the water that flows through the baskets on the rising and falling tides, said Raso, 39.

He has about 2,000 bags of oysters growing in the pond at any one time. The farm crew tends the operation daily and passes the oysters through a tumbler apparatus frequently to separate them by size in the growing process.

Read the full story at Lancaster Farming

Judge Dismisses Lawsuit Seeking Rhode Island Climate Action

September 1, 2020 — Last week Rhode Island Superior Court Judge Melissa Darigan dismissed a complaint filed by Nature’s Trust Rhode Island against the Department of Environmental Management (DEM). On behalf of 13 young Rhode Islanders and the Sisters of Mercy Ecology, the group filed suit after DEM had rejected an attempt that would have forced the state to address, systematically and meaningfully, the climate crisis and to take responsibility for its share of greenhouse-gas emissions.

Peter Nightingale, president of the Nature’s Trust Rhode Island board, said the judge’s recent ruling “makes it clear that the Rhode Island courts shirk their responsibility to protect the environment.”

The University of Rhode Island physics professor pointed to House Speaker Nicholas Mattiello’s statement at the beginning of this year that “there’s nothing Rhode Island can do to address climate change in a way that is real or impactful” as perhaps the most vivid example of political negligence.

Read the full story at ecoRI

URI researcher to map commercial fishing activity to help reduce conflict between fishing, wind industries

July 27, 2020 — The following was released by The University of Rhode Island:

A University of Rhode Island natural resource economist has been awarded a $250,000 grant from the Massachusetts Clean Energy Center to create a new way of documenting where commercial fishing is conducted in southern New England waters. The project is aimed at reducing conflict between the fishing industry and offshore wind farm developers.

“I’m exploring a new way of improving spatial planning for offshore wind,” said URI Associate Professor Thomas Sproul. “One of the biggest sources of delay in the regulatory process for offshore wind has been because of the conflicts with commercial fishing.”

He said that while the National Marine Fisheries Service collects a variety of data about the fishing industry, limited information is available about where commercial fishing occurs.

“There isn’t a consensus map of the ocean that says, for instance, if you put a wind turbine here, it affects 30 percent of the squid fishery,” Sproul said.

He will be taking a novel approach to the problem by combining existing data from numerous sources, including the Automatic Identification System, which identifies the location of every fishing vessel over 65-feet long every minute of every day it is at sea. It will be combined with the government’s vessel monitoring system and vessel trip reports, along with seafood dealer reports, Coast Guard registry records, and the National Oceanic and Atmospheric Administration’s ship-board observer program.

Read the full release here

URI researchers awarded multiple grants to study aspects of aquaculture industry

October 10, 2019 — Several scientists at the University of Rhode Island have been awarded grants to study oyster genetics, breeding and diseases as part of a region-wide effort to support the growing oyster aquaculture industry in the Northeast and assist efforts to restore wild oyster populations.

“Wild and farmed oysters are facing major threats from water quality and disease,” said Marta Gomez-Chiarri, a URI professor of animal science who has studied oyster diseases in Narragansett Bay for more than 20 years. “Even though local water quality has improved in Rhode Island, oysters across the United States face localized threats from pollution and eutrophication while at the same time dealing with multiple factors of global ocean change, like ocean acidification, as well as changes in salinity and dissolved oxygen. We are only beginning to understand the effects of these multiple stressors.”

Gomez-Chiarri — along with URI Assistant Professor Jonathan Puritz and U.S. Department of Agriculture scientist Dina Proestou — have teamed with shellfish geneticists and breeders from 10 other East Coast universities to form the Eastern Oyster Genome Consortium to develop genetic tools to accelerate selective breeding efforts. The consortium, in a proposal led by Rutgers University, has been awarded a $4.4 million grant from the Atlantic States Marine Fisheries Commission to accelerate the pace of identifying the genes responsible for desirable traits like disease resistance.

Read the full story at The Westerly Sun

URI Leads Effort To Reform Commercial Fisheries in the Philippines

April 25, 2018 — Researchers at the University of Rhode Island are leading a new project in the Philippines to increase the number of fish in their waters.

The Philippines is one of the biggest fish producing nations in the world. The U.S., for example, depends on the country for crab and tuna.

However, the majority of their fishing grounds are overfished, according to the Environmental Defense Fund, a U.S.-based environmental advocacy organization.

URI and other Filipino universities and organizations will be working throughout the next five years to develop better fishery management plans for municipalities.

Read the full story at Rhode Island Public Radio

Narragansett Bay temperature extremes signal trouble below

February 6, 2016 — Aboard the Cap’n Bert — A harbor seal pokes its mottled head out of the water, soulful eyes visible above a bristly mustache, before diving back down to snatch fish from the net being winched aboard the trawler.

“Gettin’ a free meal,” Captain Tom Puckett remarks with a shake of his head.

As the otter trawl net is hoisted up on the A-frame across the boat’s stern, it’s clear that it’s nowhere close to full. But it doesn’t matter. The Cap’n Bert is not a commercial fishing trawler. It’s a research vessel owned and operated by the University of Rhode Island’s Graduate School of Oceanography.

The 53-foot stern trawler is out on Narragansett Bay on this winter day carrying out its weekly ritual of testing the water temperature and other indicators and taking samples of marine life.

Doctoral student Joe Langan pulls open the net, spilling fish and shellfish unceremoniously onto the deck. He sorts the catch, just as he has done every week since September and as others have done before him, stretching back more than five decades as part of one of the oldest continuous marine research projects in the world.

From the wet and writhing pile, he picks out sea robin and skate, silver hake and red hake, rock crabs, spider crabs and lobsters — all species that are normally found in the Bay this time of year.

But when Langan gets to the bottom, he carefully picks up a flat, light-brown fish and pauses to study it.

“A Gulf Stream flounder,” he finally says. “Which should not be here.”

The little flounder is a warm-water species that shows up in May but would usually be gone by the time the temperature drops in December.

It is of course only one fish, but its presence here in the waters off Whale Rock on this January morning is yet another sign that Narragansett Bay is changing.

“And we’re seeing it happen,” Langan says.

Read the full story at Providence Journal

Study: Narragansett Bay temps reached record highs, lows last year

January 15, 2016 — SOUTH KINGSTOWN – An oceanographer at the University of Rhode Island’s Graduate School of Oceanography said temperatures in Narragansett Bay hit record highs and lows in 2015.

Jeremy Collie said the temperatures represent the “most extreme” fluctuations observed since the school started surveying the waters 56 years ago.

“What really stands out with our findings is that we had extreme cold and extreme heat in the water temperature in 2015,” Collie said in a statement. “So even though the world is warming because of climate change, we’re still going to have these extremes.”

The findings came from GSO’s Narragansett Bay Fish Trawl, which is done to sample fish every week in the bay and track seasonal or annual changes of marine life. Water temperature also is recorded weekly at the same site off Wickford Village in North Kingstown. Collie has managed the trawl since 1998.

Read the full story at Providence Business News

How Probiotics Can Save the East Coast Shellfish Industry

January 12, 2016 — Bob Rheault was having an open house at his young shellfish hatchery, so he arrived early in the morning with bottles of wine and plates of cheese. That’s when he noticed he had a problem.

“There was an odd substance floating on the surface of the tanks,” Rheault says. He looked through a microscope, “and there were no bodies to be seen … just empty shells with bacteria climbing all over them.”

In oyster and clam hatcheries, a bacterial infection can cause the population to drop from 10 million to 1,000 larvae overnight. That’s what happened to Rheault, who had no larvae to show his open house guests. Antibiotics aren’t approved for use in U.S. shellfish hatcheries (though they are worldwide)—and, by the time an infection sets in, all the larvae are dead anyway—so the only thing for a hatchery owner to do when confronted with an infection is dump everything out, clean the tanks, and start over.

Or that used to be the only approach. Now, researchers at two labs seem to have found a solution.

The problem of bacterial infections in hatcheries has been worsening over the past decade as the waters of the Northeast warm. Rheault, who is now the president of the East Coast Shellfish Growers Association, says that thanks to climate change, bacterial infections now kill off 10 to 20 percent of the Northeast’s shellfish larvae each year. And because the bacteria, Vibrio, gets into the tanks via seawater, it affects not only shellfish but also lobsters, by turning their shells black and making them impossible to sell. (Some lobstermen eat the animals themselves or send them to be cooked and processed, since the meat is still good.)

Researchers have now found a tool to fight the Vibrio bacteria: probiotics. Teams at both NOAA’s Milford Laboratory in Connecticut and the University of Rhode Island (URI) have harvested beneficial bacteria from healthy adult oysters that can help oyster larvae fight off bacterial infections. And the URI researchers are exploring the possibility that a similar concoction could help treat lobster shell disease as well.

Read the full story at Civil Eats

URI researchers to study climate change effect on fisheries

December 19, 2015 — PROVIDENCE, R.I. (AP) — Researchers at the University of Rhode Island have been awarded a federal grant to study the effects of climate change on Atlantic fisheries.

The state’s congressional delegation says the National Oceanic and Atmospheric Administration is giving the researchers $227,850.

Jeremy Collie, at the URI Graduate School of Oceanography, is leading the team. Scientists are participating from NOAA’s Northeast Fisheries Science Center, Narragansett Laboratory, located on URI’s Bay Campus.

Read the full story from the Associated Press at ABC6 News