On our first class field trip - to Turkey Run - we learned from Jim Egenrieder that the Asiatic clam (
Corbicula fluminea) is an invasive species that has become common in the Chesapeake Bay watershed. Since then, my daughters have wanted to investigate the filtering capacity of these small mollusks for a science project, and finding them has become a family preoccupation. We are now happily in possession of several dozen clams. Huge
thank you's to
Jim for finding and delivering clams to us - and to
Aaron,
Morlai, and
Luz for recommending Bull Run as a collection place.
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| Julie finds a clam! |
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| Clams were abundant in the gravelly, pebbly stream bed. |
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| Bull Run near Rt. 28 (Centerville Rd) overpass. |
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