• Aerial view of the Parkway in the fall

    George Washington

    Memorial Parkway DC, MD, VA

  • Road Closure Sunday, May 27, 2012 anytime between 9 a.m. to 5 p.m.

    Arlington Memorial Bridge and Memorial Circle will be closed for the Rolling Thunder XXV First Amendment Demonstration Run. Please be flexible to increased traffic and potential closures in the area all weekend.

Crustaceans

Photograph of Pizzini's Amphipod

- Photo by Brent Steury

Pizzini's Amphipod (Stygobromus pizzinii), one of two species of  Virginia State Rare subterranean amphipods found at GWMP.

Most of the crustacean inventories at GWMP have focused on amphipods, thus little is known of the other crustacean species that likely occur here. Nine species of amphipod and two species of Caecidotea isopod have been documented from GWMP. One of the amphipods found within GWMP is a species new to science, currently known as Stygobromus sp. 15, until it is given a species epithet. The other eight species of amphipods known from GWMP are Crangonyx shoemakeri, Crangonyx stagnicolous, Crangonyx palustris, Synurella chamberlaini, Gammarus fasciatus, Gammarus minus, Stygobromus pizzinii, and Stygobromus tenuis. A Grass Shrimp (Palaemonetes sp.) is occasionally found in Dyke Marsh. Eighteen species of copepod have been documented within GWMP. Two non-native crayfish, the Red Swamp Crayfish (Procambarus clarkii) and the Virile Crayfish (Orconectes virilis), and three native species, the Devil Crayfish (Cambarus diogenes), Appalachian Brook Crayfish (Cambarus bartonii) and Spiny-checked Crayfish (Orconectes limosus) have been found in streams and wetlands of GWMP.

Did You Know?

Box Turtle

Box turtles are one of the 21 species of reptiles that call the George Washington Memorial Parkway home. You can help protect these turtles by observing them from afar and not removing them from the wild. More...