Friday, September 28, 2012

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
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.

Thursday, September 27, 2012

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.


Wednesday, September 26, 2012

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.