Habitat restoration Archives

Dams give way to better habitat in Chesapeake Bay region

September 1, 2026 — A few years ago, biologist Brian Watson was looking for endangered mussels in Virginia’s Rock Island Creek when his assistant went around a bend and made a startling discovery. It wasn’t a rare mussel.

“There’s, like … a stone wall,” she shouted back to Watson. Then added, “That’s a dam.”

Standing 6 feet tall and stretching 55 feet across the creek, the dam was entirely unknown to them — appearing nowhere on maps or dam inventories.

But the dam wasn’t irrelevant to their project: It was taking a toll on mussels, as so many dams do. The biologists found shells of dead James River spinymussels, an endangered species, behind the structure.

“We assumed the mussels probably got washed down to the dam and then died as they got trapped,” said Watson, a mussel specialist for the Virginia Department of Wildlife Resources, noting that the sandy substrate and water depth behind the structure was unsuitable habitat.

It was one of more than 6,500 dams that dot more than 200,000 miles of waterways draining the Chesapeake Bay watershed. That’s an undercount. Many of them don’t appear on dam inventories. Research was required to learn that the one on Rock Island Creek was called the Baber’s Mill Dam, built in the early 1800s.

Large or small, dams create a host of problems. They alter habitat, block fish movement, change water temperatures, promote algal blooms and contribute to the decline of native species. Some are safety threats to people.

But the Baber’s Mill Dam no longer causes such problems.

By chance, an aquatic ecologist from the timber company Weyerhaeuser, which owned the property, contacted Watson about the dam a few months later. The state and company teamed up to remove the structure in April 2024.

Read the full article at Bay Journal

A River Reborn: Restoring a Stronghold for Hood Canal Summer-Run Chum Salmon

August 28, 2026 — Threatened Hood Canal summer-run chum salmon represent a bright spot in Pacific salmon recovery. According to preliminary data from the Hood Canal Coordinating Council, average annual returns have nearly tripled since 2022. They’ve climbed from about 11,600 fish per year between 2018 and 2021 to roughly 32,600 between 2022 and 2025. That’s up from a low of less than 1,000 spawners in the early 1990s.

Scientists say several years of favorable ocean conditions have contributed to the recent rebound. Cooler ocean temperatures increase the food available to salmon and improve their survival at sea. But those conditions won’t last forever. Experts believe restoring river habitat will help summer chum remain resilient when the Pacific Ocean inevitably shifts back to a warmer phase in its natural cycle.

One of the healthiest summer chum populations is returning to one of the region’s most degraded rivers. The number of chum spawning in the Big and Little Quilcene rivers has quadrupled in the last 4 years. This despite 2 miles of the Big Quilcene being straightened, scoured of spawning gravel, and cut off from its floodplain.

NOAA Fisheries’ Office of Habitat Conservation, the Hood Canal Salmon Enhancement Group, and the Jamestown S’Klallam Tribe are restoring salmon habitat at two locations on the Big Quilcene River–Moon Valley and the Lower One Mile. The projects will:

Create spawning and rearing habitat for Hood Canal Summer chum and threatened Puget Sound Chinook salmon and steelhead
Improve the Quilcene Bay estuary, where juvenile salmon make their first transition to salt water
Stop the flooding that has plagued the town of Quilcene for generations

The restoration should finish by September, just as the summer chum return to spawn.

“Restoring the Big Quilcene River has taken tribes, nonprofit organizations, local communities, state and federal agencies, and NOAA all working toward the same goal,” said NOAA Marine Habitat Resource Specialist Chemine Jackels. “Together, we’re giving one of Hood Canal’s most important summer chum populations a healthier river and a better chance to thrive for generations to come.”

Read the full article at NOAA Fisheries

MAINE: They wanted to restore wild oyster reefs to the Maine coast. Could it be done?

August 19, 2026 — A team in Phippsburg has been working for nearly a decade to get wild oysters to regenerate in Maine’s cold, turbulent waters.

On a sticky August morning in Phippsburg, Cait Cleaver, an assistant professor of environmental studies at Colby College, crouched along a section of rocky shoreline that framed a circular expanse of deep green seawater. She gently brushed aside strands of thick seaweed to reveal a large oyster nestled between two boulders.

“We’ve got 50 percent algae cover, acorn barnacles, and 100 percent rock,” Cleaver reported to her summer intern. “And we’ve got one live 55-millimeter American oyster!”

Less than three inches long, the oyster didn’t look like much. But it was evidence of something Cleaver and her team had been looking for for years: a wild oyster that had successfully grown from free-floating larva and survived the winter.

For the past seven years, Cleaver has helped run The Basin Oyster Project, a collaboration initially started by The Nature Conservancy. The project’s long-term goal is to restore wild oysters up and down the Maine coast. More immediately, that means getting oysters to survive and spawn on their own in the Basin, a deep, protected saltwater inlet on the New Meadows River, creating a self-sustaining reef.

Wild oysters were once prevalent along the coast of Maine, but had largely disappeared by the early 1900s, victims of overharvesting by European settlers, pollution and rising sea levels, which brought in cold water and predators. The state has been trying to re-establish oyster populations in Maine since the late 1940s, but they have struggled to take hold at scale.

Read the full article at the Maine Monitor

NORTH CAROLINA: Coastal habitat plan, commercial fishing licenses lead Marine Fisheries Commission meeting in Raleigh

August 14, 2026 — Possible new protections for submerged grass beds and other fish habitat in the Albemarle and Pamlico sounds will move closer to public debate if the N.C. Marine Fisheries Commission sends a draft Coastal Habitat Protection Plan amendment out for review next week.

The commission meets Aug. 19-20 in Raleigh and is scheduled to vote on releasing the proposed 2026 amendment for public and advisory committee review. The vote would not adopt the plan or impose new fishing restrictions.

The draft recommends beginning a separate rulemaking process in 2027 to develop a broader framework for protecting habitats under the commission’s authority.

That process could consider how fishing gear and other activities affect submerged aquatic vegetation and deep-water oyster recovery areas, along with rules governing the harvest and transplanting of vegetation for restoration projects.

Any regulations developed through that process would require additional commission action and public review.

North Carolina’s coastal waters have historically supported nearly 200,000 acres of submerged aquatic vegetation, commonly called SAV.

Read the full article at the Island Free Press

Can killing seals save salmon? Conservationists and Washington lawmakers disagree

July 23, 2026 — A marine wildlife hospital based in the Pacific Northwest is worried about an alarming trend: seals coming to them alive, but gravely injured.

Earlier this month, the organization treated its third seal in less than a year with a gunshot wound. That seal pup, named Waffles, was found over Fourth of July weekend. It had to be euthanized once it was determined its injuries were too severe.

“It’s not uncommon for us to see animals that have been shot,” said Casey Mclean, executive director and veterinary nurse at SR3 SeaLife Response + Rehab + Research. “Historically, we often found those animals dead. Now we’re starting to see more of them alive and suffering from gunshot injuries.”This trend, Mclean believes, is being fueled by misinformation about the role marine mammals play in Washington’s continually struggling salmon populations.

Her concern is amplified by a congressional bipartisan bill from two Washington lawmakers, U.S. Rep. Michael Baumgartner, a Republican, and U.S. Rep. Emily Randall, a Democrat. The Northwest Endangered Salmon Predation Prevention Act (H.R. 9621) would expand the ability of federal, state, and tribal authorities to remove seals and sea lions, known collectively as pinnipeds, from Washington waters in an effort to boost salmon recovery.

In statements to KING 5, both sponsors of the bill lambasted the shooting of the seal pup as illegal, but insisted it should not be confused with what they’re proposing.

“Joe Schmo or any person off the streets shouldn’t be shooting seals or sea lions,” Randall said. “What we have proposed is a robust process to figure out how we can have responsible management of a population that’s decimating our salmon.”

“No one should be illegally poaching sea lions,” Baumgartner said. “I hope the perpetrator is identified and brought to justice. This does not have anything to do with my bipartisan bill to try to save and restore our endangered salmon populations.”

Supporters of the proposal, like the representatives, argue reducing pinnipeds could help struggling salmon populations. However, critics like Mclean say the bill ignores more significant threats to salmon and risks repeating decades-old mistakes in wildlife management.

Read the full article at KUOW

Balancing Energy Production and Aquatic Resources in the Roanoke River

July 23, 2026 — At the Roanoke Rapids Dam, a hydroelectric facility on the Roanoke River in North Carolina, NOAA Fisheries collaborated with Dominion Energy and partners to evaluate how adjusting the flow of water affects migratory fish and mussel populations in the river. Monitoring results are helping to ensure these aquatic organisms have the water flow and habitat they need, while maintaining robust energy production.

When large hydroelectric dams are constructed, the natural river flow is often modified. Water may be diverted through a hydroelectric powerhouse to generate electricity, then into an engineered channel. As a result, portions of the natural river may be cut off or receive less frequent water flow. This alters the river habitat below the dam, which can affect fish and aquatic organisms.

Since the Roanoke Rapids Dam was built, dam operators have diverted a majority of the water flow through a constructed channel so it can be used for electricity generation. This cut off water flow in a portion of the natural river, which became known as the bypassed reach.

In 2004, the Federal Energy Regulatory Commission issued a new license to Dominion Energy to operate the hydroelectric dam. At that time, NOAA Fisheries worked with Dominion Energy and other state and federal resource agencies to develop a new, multi-staged water flow pattern for the bypassed reach. Water flow would be increased during certain times of the year to ensure enough habitat was present for American shad and other migratory fish downstream. Three flow levels were planned for the first 20 years of the license: low, medium, and high. The new license also called for regular surveys to monitor the response of fish and aquatic organisms to the different flows.

In 2024 and 2025, scientists evaluated how the three flow levels had affected American shad, eel, and mussels. The results showed that populations in the bypassed reach increased during the medium and high flows, compared to the low flow level. However, the benefits of the high flow pattern were not significantly different from the medium flow pattern. That meant more water could be diverted to the powerhouse for energy production, without negatively impacting fish and mussels.

Based on these findings, Dominion Energy will use the medium flow pattern for the remaining 18 years of the hydroelectric license at Roanoke Rapids Dam. This allows them to generate more electricity during periods of peak demand, while also providing enough water in the river for migratory fish, like American eel and American shad, and other aquatic organisms like mussels during critical stages in their life cycles. The result is a win-win between resource agencies and industry, with parties coordinating closely and recognizing the importance of balancing power production and aquatic resources.

Read the full article at NOAA Fisheries

Deep Diving and Innovation to Restore the Gulf’s Mesophotic Corals

July 23, 2026 — Deep in the Gulf of America lies a vital but little-known habitat. In the “mesophotic” (middle light) zone are coral ecosystems that are essential to the Gulf’s food web. In 2010, the Deepwater Horizon oil spill injured extensive areas of this delicate environment. Today, scientists across federal agencies and partner organizations are working together to restore these foundational habitats.

In the spring of 2026, a mission on board NOAA Ship Nancy Foster set out to achieve ambitious restoration goals. The team focused on planting propagated corals of species Swiftia exserta, Muricea pendula, and Thesea nivea, and collecting samples to better understand the seafloor and local water quality. Some of the corals were planted on new dome-shaped concrete structures. They were specially designed by Marine Applied Research and Exploration to support coral growth and provide habitat for other small marine animals.

New Innovations to Streamline Outplanting

Getting the corals safely down to the bottom is a challenge. In the past, scientists used “coral elevators.” These large, weighted platforms can be lowered from the ship to the seafloor where a remotely operated vehicle can then move the corals into place. However, these were cumbersome to maneuver, and met significant resistance as they moved through the water. Plus, it’s hard for an ROV, or remotely operated vehicle, to precisely place individual coral fragments on the new dome structures. This challenge called for a new way to transport the corals from the surface down to the bottom, and required the use of human divers to plant them precisely in their intended place.

This mission saw the debut of the “coral torpedo,” an invention by Chris Gardner, fisheries biologist with NOAA’s Southeast Fisheries Science Center. Designed with a streamlined shape, it travels quickly through the water column. It acts much like the pneumatic tubes at a drive-through bank teller window to deliver precious coral cargo to the seafloor efficiently and safely.

“We were looking for a way to rapidly get corals to the bottom without a lot of water mixing,” explains Gardner. “The key is to land them in a very precise location. The corals coming from the lab have little bases on them, so we can just pop them in the tube, then at depth the divers have it set up like a little coral buffet that they can pull from and place on the seafloor. This was definitely a prototype, and I have to say it worked even better than expected.”

The new equipment worked flawlessly—safely delivering the delicate specimens down to the divers below. There, the divers made quick work of placing these corals at the designated restoration site.

Read the full article at NOAA Fisheries

US Senate bill would provide more funding for restoring salmon along the San Joaquin River

July 20, 2026 — The U.S. Senate Committee on Energy and Natural Resources advanced legislation providing additional funding for restoring salmon in the San Joaquin River, clearing the bill for a vote from the full Senate.

If passed into law, the bill would triple the cap on funding available under the San Joaquin River Restoration Settlement Act from USD 250 million (EUR 219 million) to USD 750 million (EUR 656 million). The original legislation was passed in 2009 as part of a settlement ending an 18-year-long lawsuit filed by the Natural Resources Defense Council, which blamed government policy and dam operators for causing local extinction of spring-run Chinook salmon in the San Joaquin River.

Read the full article at SeafoodSource

US lawmakers advance bill reauthorizing NOAA’s Chesapeake Bay Office

July 17, 2026 — U.S. representatives on the House Committee on Natural Resources voted to advance a bill reauthorizing NOAA’s Chesapeake Bay Office on 15 July.

“The House just took a key step toward investment in the science, restoration, and education that’s essential to the Chesapeake Bay’s recovery,” Chesapeake Bay Foundation (CBF) Senior Policy Director Keisha Sedlacek said in a statement. “We’re grateful to House leaders for advancing the WATERS Act and look forward to action in the Senate on the companion bill.”

Read the full article at SeafoodSource

MAINE: Maine seeks new ESA tools to speed Atlantic salmon recovery

July 16, 2026 — The Maine Department of Marine Resources (DMR) is asking federal fisheries officials to evaluate whether existing authorities under the Endangered Species Act (ESA) could help accelerate Atlantic salmon recovery while maintaining current protections.

In a June 4 letter to the National Marine Fisheries Service, DMR Commissioner Carl Wilson requested that NOAA review whether the ESA could provide additional flexibility to expand Atlantic salmon recovery efforts. The Bangor Daily News reported that the request could eventually create opportunities for tightly controlled, conservation-oriented catch-and-release fishing if the species recovers.

The request follows decades of habitat restoration, fish passage improvements and river connectivity projects that have benefited Atlantic salmon and other sea-run fish. However, Sean Ledwin, director of the DMR Bureau of Sea Run Fisheries and Habitat, said adult Atlantic salmon returns remain very low despite those investments.

Read the full article at the National Fisherman