A single oyster can filter up to 50 gal water/day! Pretty amazing! Watch this video to see it in action courtesy of the Chesapeake Bay Foundation, CBF (http://tinyurl.com/py7657z)
Apparently, eastern oysters were once abundant in the Chesapeake. Unfortunately, according to a 2011 report from the MD department of Resources, the Chesapeake Bay eastern oyster population has declined 98% since colonial times. Unsurprisingly, this is due in part to over harvesting, habitat destruction, & water pollution. Although, disease also played a role in the late 1980’s according to the CBF.
I had know idea oysters were so prevalent in the Chesapeake. Given their extraordinary filtering capabilities, developing a sustainable oyster population is seen as a way to help keep the bay cleaner. An intriguing way to let nature take care of itself, if only we would allow it to happen.