Photo: A Visual Look at the Importance of Oysters for Our Waterways

The water in each of the tanks is from the exact same source. The one on the right has oysters.

Posted on Twitter by Steve Vilnit, who is the Director of Fisheries Marketing for the Maryland Department of Natural Resources.
http://seafood.maryland.gov/

h/t to David Shiffman.

Want to know what oysters do for the environment? The water in both tanks is the same. The one on the rt has oysters. pic.twitter.com/jLeZ2RRAqo
— Steve Vilnit (@SteveVilnit) October 18, 2014