Clubs, riffles and rays of New York

This post is part of a series running all month on freshwater mussels, highlighting their importance to the Northeast landscape and the concerted efforts underway to ensure their future in our waters.

 The Allegheny River basin holds globally significant populations of four species of mussels federally listed as endangered.  They are northern riffleshell (Epioblasma torulosa rangiana), clubshell (Pleurobema clava), rayed bean (Villosa fabalis) and snuffbox (Epioblasma triquetra).  

Surveys in the upper Allegheny River basin in New York and Pennsylvania have found populations of these species in the past, but portions of the mainstem Allegheny River and its tributaries remain un-surveyed or have incomplete surveys -- an obstacle to truly achieving recovery.

Diver looking for riffleshell and clubshell mussels. Credit: Jeremy Tiemann Il/Natural History Survey

Moving mussels

Cheryl Daigle from the Penobscot River Restoration Trust.

Today you're hearing from Cheryl Daigle, the community liaison and outreach coordinator for the Penobscot River Restoration Trust. This post is part of a series running all month on freshwater mussels, highlighting their importance to the Northeast landscape and the concerted efforts underway to ensure their future in our waters.

Working on a river restoration project that is focused on restoring 11 species of sea-run fish -- including the enigmatic shortnose sturgeon and leaping wonder of salmon -- offers many fascinating moments of discovery about rivers, community, and restoration of place.

Yet, I never imagined freshwater mussels would invite the depths of thought I had while helping to relocate exposed mussels to deeper habitat during the removal of the Great Works Dam and subsequent lowering of the impoundment to a natural river flow.

50 years after Rachel Carson's Silent Spring

In honor of today's 50th anniversary of Rachel Carson's book Silent Spring, we're highlighting some of the discussion about the anniversary and the book's connection to modern issues. 

Who among us will make the next Rachel Carson possible? David Klinger, writer in the Service's Endangered Species Bulletin, poses this question with a "critical reexamination of both the woman and her groundbreaking bestseller, written by Carson amid the supercharged Cold War atmosphere of John Kennedy's 'New Frontier'": 

To some, she was a saint. The "fountainhead" of the modern environmental movement, deified almost a half-century after her death. To her memory are dedicated wildlife refuges and elementary schools, bridges in Pittsburgh and office edifices in Harrisburg ... and a training center dormitory in the Federal agency she had to quit in order to write what she truly wanted to write. Read the rest of Klinger's story.

Giving mussels a boost in Tenn.'s Powell River

Today you're hearing from Jess Jones, a restoration biologist with the Service's Virginia Field Office, on releasing the largest group of three endangered mussels in the Powell River. This post is part of a series running all month on freshwater mussels, highlighting their importance to the Northeast landscape and the concerted efforts underway to ensure their future in our waters.

Biologist Jess Jones distributes mussels. Credit: Gary Peeples/USFWS

Every once in a while everything just works out. 

Today was such a day -- cool and sunny, an early fall afternoon on the Powell River in northeastern Tennessee, where biologists and students worked together to release endangered mussels. Heavy rains occurred the week before, but the water level dropped just in time to stock them in the river, 5,500 oyster mussels (Epioblasma capsaeformis), 1,000 Cumberlandian combshells (Epioblasma brevidens), and 27 snuffbox (Epioblasma triquetra). The young mussels were 1-2 years old and about 20-30 mm long.

Reviving a river: Free-flowing waters at Great Works Dam

Each week, our folks at the Maine field office are driving by to check on the progress of the Great Works Dam removal, part of the Penobscot River Restoration Project.

The majority of the heavy lifting at Great Works is complete, so we'd like to share a series of photos capturing the incredible progress made since June this year -- a representation of many years of conservation efforts. 



See more Great Works dam updates. 

Freshwater mussel conservation in western New York

This post is part of a series running all month on freshwater mussels, highlighting their importance to the Northeast landscape and the concerted efforts underway to ensure their future in our waters.

Nestled between Lake Ontario and Lake Erie in western New York, the Service's Lower Great Lakes Fish and Wildlife Conservation Office is located in an incredibly unique area. Part of the reason this area is so interesting is the high number of streams with freshwater mussels.

A native freshwater mussel found in the stream during a road-crossing survey. Credit: USFWS

Freshwater mussel populations are in decline all over the country. Pollution and habitat loss are two of the leading causes of the population decline. As the human population grows and cities spread out, more roads are built, many of which cross streams. When those road crossings are installed correctly, they cause no problems.

However, due to budget constraints and lack of training for the installers, many crossings are under-sized or incorrectly installed. This causes a major problem for fish and other critters that live in the stream. The road crossing becomes a barrier to fish migration, as well as the migration of other species, including freshwater mussels.

Life in the lab: The less glamorous side of marine biology

Today you're hearing from Melissa May, a doctoral student in marine biology at the University of Maine, about her work studying how mussels respond to changes in salinity. For this post, we're switching from freshwater to saltwater mussels in our series.

Sure, being a marine biologist is awesome, but it’s not all whales and ocean excursions.

Most of us spend a fair amount of time in the laboratory, bent over microscopes or analyzing data. And, more often than not, our research subjects resemble slimy blobs instead of adorable animals. But, we lab rats get a different perspective of the world. We see inside the cells, we manipulate the unseen, and we play with expensive equipment.

I study mussels – the same ones you’ve sautéed in wine. On the outside, there isn’t much to them, but we all know it’s what’s on the inside that counts. And take it from me, they’re fascinating!

Reviving a river: Checking in at Great Works Dam

Each week, our folks at the Maine field office are driving by to check on the progress of the Great Works Dam removal, part of the Penobscot River Restoration Project.

Our Maine hydro licensing coordinator, Steve Shepard, says, "Imagine running these rapids. I hear it was done last week, though the fish have been doing it for weeks!"

 

See more Great Works dam updates. 

Recovering the wild from a wild river: Taking a look back

This post is part of a series running all month on freshwater mussels, highlighting their importance to the Northeast landscape and the concerted efforts underway to ensure their future in our waters.
 
The conflict between the demand for energy and the love of land

The 1960 film Wild River, starring Montgomery Clift and Lee Remick, dramatically depicts the controversy surrounding the construction of a series of federal dams to harness the mighty Tennessee River for electrical power generation in the 1930s. The story opens when a Tennessee Valley Authority field administrator is sent to make way for one of the dams, but the Garth family and others living along the river resist leaving their land, which is to be flooded. Slowly, the conflict unfolds. 

Wild River pits the need for power generation and flood control against the preservation of land and culture. Construction of dams throughout the Tennessee River basin brought the region into the modern world but also displaced farm families and communities, altered aquatic habitats, and resulted in the loss of many native fish and mussels. 

TVA's Norris Dam on the lower Clinch River in Tennessee. Completed in 1936, it was the first of many dams constructed by TVA to harness the power of the Tennessee River System. The free-flowing portion of the Clinch River above the dam is the nation's top hotspot for freshwater mussel diversity.

Taking control of sea lamprey in the Lake Champlain Basin

More than 100 years ago, a parasitic, snake-like fish hitchhiked a ride to America’s sixth Great Lake – invading the almost 500-square-mile Lake Champlain straddling Vermont and New York. At least, that’s what some say. 

Sea lamprey. Credit: USFWS

Other information indicates the fish—sea lamprey—may be native to the lake and even a resident since the last ice age. Either way, the sea lamprey grew in numbers and preyed on native fish. By the 1900s, native salmon and lake trout were no longer found in Lake Champlain. When sea lamprey impeded efforts to bring the fish back, concern grew about populations of this parasitic fish.

A single sea lamprey kills 40 or more pounds of fish in its life as a parasite. They attach to host fish and feed on their blood and body fluids, leaving a wound at risk for infection. The lamprey is often confused with eels because it is jawless, but its circular sucking disk helps to distinguish it from the American eel, which has a true jaw. Inland adults average 24 to 30 inches in length. 

A growing appreciation for freshwater mussels

Today you’re hearing from Brett Hillman, a biological science technician for the Service’s New England Field Office, as he recounts his work with freshwater mussels at the Service's Missisquoi National Wildlife Refuge in Vermont. Brett assists the endangered species biologists and has the great pleasure of working with a wide variety of wildlife. This post is part of a series running all month on freshwater mussels, highlighting their importance to the Northeast landscape and the concerted efforts underway to ensure their future in our waters.

Before I began my job in the New England Field Office, I will admit that I didn’t have a great appreciation for mussels.

I knew that they were an important component of aquatic ecosystems, but I didn’t understand quite how important. And while I’ve spent countless hours searching for and identifying species of many other taxa, from birds to bugs to plants, mussels never captured my interest. Now that I’m fully immersed in mussel ecology, however, I am definitely gaining some more respect for these underrated invertebrates.

Freshwater mussels are one of the most imperiled taxa in the country. According to Patty Morrison, a mussel expert and biologist at the Ohio River Islands National Wildlife Refuge, 76 out of the approximately 300 native mussel species in the U.S. are federally listed, six of which have been listed within just the past two years. 

Not just rocks: The mussels of our rivers and streams

Today you’re hearing from Meagan Racey, who handles public affairs and media relations for Ecological Services, on her recent encounter with freshwater mussels. This post is part of a series running all month on freshwater mussels, highlighting their importance to the Northeast landscape and the concerted efforts underway to ensure their future in our waters.

The sky beamed blue above, and the sun shined down on me below as I sliced the clear water with my paddle—shwoosh down the right side of the kayak, and shwoosh down the left side. From the shoreline, a great blue heron watched me wearily, and up ahead a bald eagle peered from the treetop. Minnows darted under the water and water bugs glided across the top.

It’s hard to beat a day on the water. My trip down a portion of New England’s longest river, the Connecticut River, started at Greenfield, Mass., and amid all the beautiful details I mentioned above, one unmentioned characteristic struck me the most – the littering of freshwater mussels poking up from the bottom of the clear river.

Reviving a river: Checking in at Great Works Dam

Each week, our folks at the Maine field office are driving by to check on the progress of the Great Works Dam removal, part of the Penobscot River Restoration Project.

As the Penobscot River Restoration Trust says: "The next best thing to the sight of a newly restored, free-flowing stretch of river? The sound of water coursing through natural ledges and cobbles. An amazing transformation has been taking place on this stretch of the Penobscot River!"

Reviving a river: From the Atlantic Salmon Federation

Andy Goode, vice president of U.S. programs
for the Atlantic Salmon Federation.

Today you're hearing from Andy Goode, the vice president of U.S. programs for the Atlantic Salmon Federation, an international conservation organization dedicated to the conservation, protection and restoration of wild Atlantic salmon and the ecosystems on which their well being and survival depend. ASF is a partner in the internationally recognized Penobscot River Restoration Project, re-opening nearly 1,000 mile of habitat for endangered Atlantic salmon, sturgeon, river herring and eight other species of sea-run fish in Maine.


The Penobscot Project offers a rare, far ranging, and for the foreseeable future, our only opportunity to restore a significant run of Atlantic salmon in the southern range of the species. For the first time in 200 years this project will directly address the primary threat to Atlantic salmon restoration by reducing multiple dams in Maine’s largest salmon river, thus offering the real potential to reverse the longterm decline of salmon in the United States.

Understanding wind turbine impacts on wildlife

Today you’re hearing from Meagan Racey, who handles public affairs and media relations for Ecological Services, on her recent visit to a Vermont wind project.

Have you ever stood under a wind turbine, stared upward along an almost 300-foot pole, and been hypnotized by the rhythmic “whoosh, whoosh” of the white spinning blades slicing through a deep blue sky?