Images

- Freshwater mussel
- Mollusks; Rivers and streams;
- Freshwater mussel in the genus Lampsilis
- Images
- Freshwater mussels
- Mollusks; Rivers and streams; Snorkeling;
- Nathaniel P. Hitt displays freshwater mussels he retrieved from the Potomac River near Shepherd's Island, MD.
- Images
- Specimens pulled from the Potomac River
- Mollusks; Rivers and streams; Snorkeling;
- U.S. Geological Survey employee Nathaniel P. Hitt holds two mollusks he pulled from the Potomac River while snorkeling.
- Images
- Brook Floater and Northern Lance
- Mollusks; Rivers and streams; Species of concern;
- These two native specimens were pulled from the Potomac River during a survey near Shepherd's Island, MD. Of the two, the mollusk on the left - a Brook Floater, is considered a "species of concern".
- Images
- Eastern elliptio - A freshwater mussel pulled from the Potomac River.
- Rivers and streams; Mollusks;
- Close-up of a freshwater mussel.
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- Underwater survey of the Potomac River
- Rivers and streams; Snorkeling;
- Tanner Haid conducts an underwater survey of the Potomac River near Shepherd's Island, MD.
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- Snorkeling in the river.
- Rivers and streams; Snorkeling;
- Snorkeler explores the shallows of the Potomac River.
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- Snorkeler surveys the Potomac River bottom
- Rivers and streams; Snorkeling; Surveying;
- Periodic surveys of the Potomac River bottom are conducted in order to assess the health of the river.
- Images
- Survey of the Potomac River bottom
- Rivers and streams; Snorkeling; Surveying;
- Tanner Haid examines records survey information collected from the Potomac River near Shepherd's Island in MD.
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- Videographer obtains underwater footage.
- Rivers and streams; Snorkeling; Underwater photography; Videography; Employees (USFWS);
- U.S. Fish and Wildlife Service Videographer Ryan Hagerty uses specially designed equipment to obtain underwater footage of the Potomac River near Shepherd's Island.
- Images