<http://schema.org/about>
"Scientists say that the Chesapeake Bay's oyster population has dramatically declined to 5 percent of what it was when European settlers first inhabited the area, according to an article in Reuters. Unsustainable fishing"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/natural-sciences/oyster-gardeners-rebuild-a-once-thriving-population-in-the-chesapeake-bay.html>