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VIRGINIA: Can a few hundred mussels become millions in the Anacostia?

October 25, 2019 — Last fall, Jorge Bogantes Montero of the Anacostia Watershed Society helped to transfer tiny, hatchery-raised mussels into protective baskets in the Anacostia River. At the time, Montero said, he “didn’t have any expectations” that they would survive. But, under the careful watch of the watershed group and local school children who helped monitor their growth, nearly 92% of them did.

Now, the pilot project that started with 9,000 quarter-size mussels placed in a river no one was sure could sustain them has graduated to a much bigger one. In late September, the surviving mussels — some of which grew as much as 2 inches over the last year — were disseminated to several other locations in the river, from the marshes around Kingman Island to the faster-flowing waters near Yards Park.

Projects to circulate mussels through more of the Chesapeake Bay’s freshwater systems have been picking up steam as more people recognize the bivalves’ powerful water-filtering capacity.

Although most of the species used for restoration projects won’t show up on a local menu, they function like the Bay’s beloved oysters by providing food and filtration to local ecosystems.

“Mussels filter the water. They take nutrients and bacteria and sediment out,” said Jim Foster, president and CEO of the Anacostia Watershed Society. “We see this as an opportunity to help naturally clean up the river.”

Read the full story at the Bay Journal

The Anacostia River Is Mussel-ing Its Way To Clean Waters

August 28, 2018 — If you’ve got 5,600 freshwater mussels, you could serve about 280 steaming plates of moules marinières. Or, you could deposit the bivalves in the Anacostia River.

The Anacostia Watershed Society has opted for the latter as part of a larger effort to clean the river and renew the mussel population. Last week, staffers and volunteers with the nonprofit placed the creatures in 28 floating baskets at seven sites along the Anacostia River—six in D.C., and one in Maryland—with varying microhabitat conditions.

Jorge Bogantes Montero, the organization’s natural resources specialist, has already checked on one of the baskets, all of which have swimming pool noodles to keep them afloat and covered tops to protect the mussels from predators.

“They look great,” he says of the mussels in the baskets by the Anacostia Watershed Society’s floating office on Water Street SE.

How does he know? He peeked into the baskets and saw mussels with two little holes, which he calls an innie and an outie (one of which is filtering water and the other is secreting waste). “I could see pairs of holes all over the bottom, so I know they are working,” says Montero. “If you see slits open, that’d be a bad sign.” The next checkup will happen in late September, about a month after their deployment.

Much like oysters, mussels can filter large quantities of water (between 10-20 gallons daily) and they eat bacteria like E. coli. But that’s just one of their benefits to the ecosystem, says Montero. “They are providing a lot of ecosystem services even beyond filtration,” he says, like depositing sediment at the bottom of the river. Other critters also use their shells as places for shelter or nesting.

Read the full story at DCist

Mussels Could Help Make the Anacostia Safe for Swimming

July 11, 2018 — It might be hard to imagine now, but the DC Department of Energy and the Environment says the Anacostia River will be swimmable and fishable in the next 14 years. How will it get there? As part of the ongoing effort to clean up the river and fulfill the promises of the Anacostia 2032 plan, the department, along with the U.S. Fish and Wildlife Service and the Anacostia Watershed Society, is attempting to outsource some of the cleanup to an unlikely crew: freshwater mussels.

In June, floating baskets and submerged silos containing dozens of baby mussels from a hatchery—each about as big as a sunflower seed—were placed in the water, from Buzzard Point to Bladensburg, as part of a 10-week study. The team has since been conducting weekly water-quality checks, and the progress so far is encouraging. On Monday, Fred Pinkney, a Fish and Wildlife environmental contaminants specialist, measured some of the mussels under the 11th Street bridge and by a pier at the Yards. Both locations showed promising growth.

If the mussels are thriving, that’s great news for the status of the river.  Mussels are a biological indicator species. When they die off or fail to thrive, it means the water can’t support the ecosystem. In two more weeks—the halfway point of the 10-week study—all of the mussels will get their first official measurement.

Read the full story at the Washingtonian

The Chesapeake Bay hasn’t been this healthy in 33 years, scientists say

June 18, 2018 — For the first time in the 33 years that scientists have assessed the health of the Chesapeake Bay, the nation’s largest estuary showed improvement in every region, a likely sign that a massive federal cleanup plan is working.

The bay’s most important species — blue crabs and striped bass, which support commercial and recreational fisheries, and anchovies, the foundation of its food chain — earned top scores in a report card released Friday. Bright green underwater grasses — which help protect young fish before they venture into the Atlantic Ocean — are now thriving, even in some places where such vegetation had disappeared.

In sharp contrast to the days when the bay was so beleaguered that every meaningful species experienced sharp population declines, officials and scientists from the District, Maryland and Virginia announced Friday that it is in the midst of a full and remarkable recovery. As if to underscore the progress, their backdrop along the District’s southwest waterfront was a brilliantly sunny morning and a picturesque view of the Anacostia River, which feeds into the Chesapeake.

The news comes at a time when hundreds of bottle-nosed dolphins have been seen frolicking in the bay, including a large pod off Maryland’s Ragged Point last month. On Tuesday, two great white sharks were hooked by scientists in Virginia. The number of fish-hunting osprey is also on the rise.

The bay’s overall grade is a C, because some areas, such as the Patuxent, Patapsco and York rivers, are bouncing back from near-failure. The category of water clarity faltered, falling to an F from last year’s D. But the James River area and the lower stem of the bay closer to the Atlantic both earned grades of at least B-, their highest ever, and shored up the overall score.

Read the full story at the Washington Post

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